Why Hire a Company to Make Custom Plastic Parts (Contd.)

There are several reasons to contact a plastic injection molding service in Chandler to make all of your custom plastic parts.

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Custom Plastic Parts and Injection Molding

In addition to being fast, efficient, and flexible, there are other reasons to use the plastic injection molding process to make plastic parts.

Plastic injection molding is resource-conscious, and more ecologically friendly than other plastic manufacturing processes. With increasing focus on sustainability these days, it’s common for product developers to choose the processes that minimize waste and benefit the environment.

Plastic injection molding is not only effective, but also a highly efficient process, which means reduced plastic waste. That’s because only as much plastic as necessary is used to create parts, and all excess plastic is again ground up and recycled for reuse. Remember the three R's: Reduce, Reuse, and Recyle?  Plastic injection molding does all three.

Plastic injection molding allows for the creation of durable plastic parts.  Another cool benefit of the plastic injection molding technique is that fillers can be easily added to components being manufactured, reducing density of processed plastic while adding strength to the finished parts. It is a ideal process for products or industries where parts are needed to be very strong. However, there are more reasons this miraculous process has support.

Plastic Parts Can Be Made of More Than One Type of Plastic

The latest injection molding facilities can easily process two or more different plastics at the same time.   So you can have a harder plastic mixed with a softer plastic for a truly custom plastic part.  Another advantage of plastic injection molding process to manufacture custom plastic parts is the ability of machine to use various types of plastics simultaneously.

This custom plastic blending can be done easily with the help of co-injection molding, which easily takes away worry about using any specific kind of plastic. During the injection molding process, it is very easy to use various types of fillers in the molds. These fillers help in reducing the density of plastic while it is being molded in the machine and also help in adding much greater strength to the components once they’ve been molded.

With a plastic injection molding process you get custom plastic parts that need minimal end finishing. That’s because all parts that come out of the mold are pretty much close to the finished appearance. A bit of trimming, a bit of wiping and the part is ready to go into the box.  Another reason a lot of companies want plastic parts made this way is that the process is automated.  A major part of the process is conducted by robotics and machines that can be controlled by an individual operator. Automation definitely helps in reducing manufacturing costs, overheads are considerably reduced. Aside from that, with reduced need for labor force the overall production cost is also reduced and this kind of cost savings can be easily passed on to the customer.

So it's fast.  You can customize your plastic parts.  And it allows you to mass produce plastic parts.  All very good reasons to get plastic injection molding.

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Chandler, Arizona 85225
602-437-0136
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Why Hire a Company to Make Custom Plastic Parts

If you need custom plastic parts, you have to pick a company that has the right sort of manufacturing process.

Custom Plastic Parts Are Easy
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Plastic Injection Molding and Customization

Custom plastic injection molding machines were created in early 1930’s to meet the growing industrial needs and complexities of the molding process. The machines used in such factories allow for mass production as well as repeated runs of particular parts.

During the plastic injection molding process, these machines are used to make custom plastic parts and have  become one of the easiest and most cost effective processes that is used by leading industries that use plastic components or parts. In this process, to manufacture custom plastic parts, melted plastic is injected in a mold using hydraulic force to give the plastic a particular shape. Around 35 percent of all plastic parts today are manufactured using custom plastic injection molding services.

Why the Plastic Injection Molding Process Works

Aside from being simple and reliable, it is also extremely efficient. One should have absolutely no doubt about using this process to manufacture custom plastic parts. A custom plastic injection molding machine consists of three vital components that usually vary from model and make.

The mold is the main component that gives the desired shape to the custom plastic parts, while main clamping unit holds various mold parts together throughout the process. The injection molding unit processes the plastic granules and feeds it directly to the mold for the final product. Custom plastic injection molding has definitely revolutionized the manufacturing sector, with more developments improving the efficiency in producing complex custom plastic parts. Here are some of the benefits of the process.

It's fast. This is the main reason why injection molding is one of the best technologies for long manufacturing runs. It’s really fast. How fast? While the manufacturing speed for custom plastic parts will depend upon the complexity of the mold, generally it is about 14-30 seconds pass between cycle times.

Plastic injection molding is accurate.  It's a highly precise process that can easily fabricate any kind of plastic part. There are some design restrictions but molds used in the machine allow the finished product to be very precise. Usually the accuracy is within 0.005 inches. Low labor costs is another reason for molding plastic.  Injection molding machines run with an automatic, self-gating tool that keeps operations streamlined and production process ongoing, requiring minimal supervision.
The final reason for injection molding is flexibility.  Aside from being highly accurate, the injection molding process used to manufacture custom plastic parts is also a highly flexible one. You just have to change the type of material which is being produced as well as the color of your product to get entirely different results.

So if you need plastic parts, the best process to get them made is plastic injection molding.


AZP & Associates
295 E. Corporate Place Suite # 108
Chandler, Arizona 85225
602-437-0136
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Plastic Injection Molding and Types of Plastic

Plastic injection molding is a process that allows a business to create parts in any number.  The key thing to note is that there are several types of plastics around. 

Types of Plastics Used in Plastic Injection Molding

Plastic is an essential component of numerous products from product containers and water bottles all the way up to construction materials.   All plastics aren't the same, however.   

The Society of the Plastics Industry is an advisory board that sets standards for plastics and plastic injection molding.  According to their site:

"SPI introduced the Resin Identification Code (RIC) system in 1988 at the urging of recyclers around the country. A growing number of communities were implementing recycling programs in an effort to decrease the volume of waste subject to rising tipping fees at landfills. In some cases, these programs were driven by state-level recycling mandates.

The code was developed to meet recyclers' needs while providing manufacturers a consistent, uniform system that could apply nationwide. Because municipal recycling programs traditionally have targeted packaging - primarily containers - the coding system offered a means of identifying the resin content of bottles and containers commonly found in the residential waste stream. The RICs are used solely to identify the plastic resin used in a manufactured article.

In 2008, SPI began work with ASTM International, a globally recognized leader in the development and delivery of international voluntary consensus standards, to develop a new standard that would expand the current RIC system. In 2010 ASTM International issued ASTM D7611 - Standard Practice for Coding Plastic Manufactured Articles for Resin Identification.  In 2013 ASTM International announced revisions to ASTM D7611 including a change to the graphic marking symbol used to identify resin type. The RIC system has used a “chasing arrows” symbol surrounding a numeral from 1 to 7 that defines the resin used in the product’s packaging. Under D7611, this marking symbol is now specified as a solid equilateral triangle around the number. By replacing the chasing arrows graphic – commonly associated with recycling – with an equilateral triangle, ASTM D7611 stressed the focus to the system’s core mission: resin identification and quality control prior to recycling. Other modifications to the RIC are currently being discussed and developed by ASTM's D20.95 subcommittee on recycled plastics.  [READ SOURCE]

Plastic Injection Molding in Chandler: Final Thoughts

You want to make sure you have enough parts for whatever manufacturing run you're doing.  You also want to make sure that your parts are standardized, and are custom plastic parts.

So remember, rather than doing it yourself, your best bet is to hire a plastic injection molding service in Chandler.

AZP & Associates
295 E. Corporate Place
Suite # 108
Chandler, Arizona 85225
602-437-0136
http://www.azpandassociates.com

Plastic Injection Molding: Automation and the Human Touch (Contd)

Plastic injection molding offers flexibility in terms of trying out new designs. 

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Why Go to Professional Plastic Injection Molding Service?  

Plastic injection molding is all about versatility.  Different materials can also be used in the making of the parts. Flexibility in design and production for a manufacturing company is very vital, thus explaining why so many companies opt to hire an injection molding company for plastic parts manufacturing.

Molding machines offer low labor cost. Compared to having a group of people hammering the parts to be manufactured, a plastic injection molding machine is autonomous and requires very few people to run it. Low labor cost for a manufacturing company translates to lower input thus maximized profits. Materials contribute to the profitability of a manufacturing company. It is therefore vital that material waste is as minimal as possible to maximize on the profits realized by the company. 

Plastic Injection Molding and Manufacturing Parts

Plastics are currently the most common manufacturing material in use. The molding machine usually uses plastic for the manufacturing of the desired product. Since plastic can be recycled, any waste during injection molding gets recycled, thus reducing wastage on materials and maximizing the company’s resource utilization and profits. 

Though injection molding has its own disadvantages such as some restrictions in the designing of the parts to be manufactured; which is attributed to a number of reasons such as the parts made through the process must be solid and not hollow, this manufacturing practice is still common among manufacturing industries around the globe. The number of components and parts that can be made through this process is quite big. The number of companies specializing in plastic injection molding is also increasing due to the increasing popularity of this manufacturing practice.

If you get to look around you, and see the number of components that have been made through injection molding, you will have an endless list. This manufacturing practice is here to stay as it has lots of promise, to the manufacturing industry. 

So remember, you want to best components for your manufacturing facility.  Start with parts that are easily produced and mass produced as well.  That's how you know you found the right source for custom plastic parts in Phoenix.

AZP & Associates
295 E. Corporate Place
Suite # 108
Chandler, Arizona 85225
602-437-0136
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Plastic Injection Molding: Automation and the Human Touch

Plastic injection molding has been a combination of human involvement and automation.

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Plastic Injection Molding in Phoenix

Injection molding has been automated a while now. This is a great leap as plastic parts manufacturing through injection molding have become more accurate with enhanced precision due to the use of automation, thus providing better results. Some companies own molding machines that they use in the manufacturing of their own products.

A molding machine is expensive equipment that needs a lot of cash to install and maintain. Similarly, skill is required to run this machine. However, many companies prefer to hire a company that will manufacture for them their products or components instead of them purchasing and installing their own molding machine.

It is true that there are companies out there in the market that deal in the production of custom made parts, made through injection molding. These companies offer supplementary services to manufacturing companies by assisting them in their production process. But why would such kind of companies exist? Setting up and running a molding machine is a task that requires both money and skill. Since so many companies don’t want to spend a huge amount of money in purchasing this machine much less hire the personnel to run it, they make use of other companies that specialize on plastic parts manufacturing through injection molding.

Injection Molding and Manufacturing

As we covered previously, the reason why injection molding is a common manufacturing practice in the manufacturing industries is because of the advantages it has when put in use. One of these advantages is faster production. Injection molding is a process that takes only a short while to have one part or component manufactured. With a high output rate; which is usually a matter of 15-30 seconds per part though this is dependent on the type and amount of material being used, injection molding surely speeds up the manufacturing process. This enables the manufacturing company to meet the demand in the market through faster production.

Designing is a never ending process, and there is no perfect design that has ever been made. All designs do change and when different designs are being tried out to see which one is more appealing than the other, time is a limiting factor as well as flexibility of the equipment manufacturing the part. For molding machines however, the molding cavities can be changed according to the required design. Plastic injection molding is the future.

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Plastic Injection Molding in Phoenix and It's Versatility

In the manufacturing industry, each product has to be designed and manufactured according to the design blueprints, which is where a process like plastic injection molding comes in.

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Why Should You Get Custom Plastic Parts?

Why should you get custom plastic parts? Manufacturing products and parts can be a labor intensive and pretty expensive exercise if the right methods are not used. If you want to manufacture custom parts such as automotive body panels, dashboards, storage containers or mechanical parts such as gears, plastic manufacturing through injection molding is something you should be considering. So, what is injection molding?

Injection molding is a manufacturing process where custom parts are manufactured through the use of plastic or other resinous material injected into a mold. Several materials are used for injection molding. These are: confections, glasses, metals, elastomers and the most commonly used materials are thermosetting and thermoplastic polymers. However, thermoplastics are commonly preferred in injection molding over thermosetting polymers due to the fact that the latter poise a bigger risk of damaging the injection machine due to chemical cross-linking that happens if the thermosetting polymer is not ejected at the right time, from the injection barrel.

How Plastic Injection Molding Works

To carry out injection molding, a molding machine is required. A molding machine contains several components and systems that work together to carry out the molding process. Some of these components are: a mold assembly, a heating unit and a ram. Basically, a molding machine carries out injection molding by squeezing material, usually molten, into a mold cavity. The mold cavity is designed according to the desired shape of the product to be manufactured.

The mold, in which there is the mold cavity, is usually made using a mold maker. The mold maker machines the mold from metal, with the most common metals used being steel and aluminum. When carrying out injection molding, the material to be used in the process is fed to a heating unit that reduces the viscosity of the material allowing it to flow. A ram or screw-type plunger forces the molten plastic material into the mold cavity, using high pressure and velocity. The molten plastic material, on cooling, hardens to take the shape of the mold cavity, which is the desired shape of the product, according to the desired design. The joy of using a company that offers molding services, is that any number of custom plastic parts can be manufactured, from a few to several thousand.

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Need Custom Plastic Parts? Hire a Plastic Injection Molding Company (Conclusion)

Hiring a plastic injection molding company in Phoenix will help your business not just stay profitable.  It can also help you to stay relevant.

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Plastic Injection Molding in AZ:  Be the Leader of the Pack

Hiring a plastic injection molding service allows you to get your products to market quicker.
Injection molding companies have many customers who order a huge assortment of plastic parts in various sizes, quantities, and resin types. Thus, these companies invest in heavy-duty high-capacity injection molds that can generate thousands of parts in a day. Also, with the Rapid Injection Molding technology now available with many service providers, it is possible to produce high quality plastic parts in a variety of resins in a single day, with no manufacturing defects. Hence, it is now feasible for businesses to produce a huge batch of plastic parts and deliver it to the market quicker than manufacturing them in-house.

What You Need to Know For Your Plastic Injection Molding Project

What to keep in mind before you outsource your plastic injection molding project? 1. Make sure you research well before selecting a plastic injection molding service provider. Online resources like BBB (for complaints from previous customers) and Yelp (for business reviews from customers) are good points to start from. Schedule a visit to their manufacturing unit, if needed. 2.

Look for a proven track record of projects finished on time, good quality products that are consistent in design and production, customer satisfaction, and good reputation in the market. It is also recommended that you speak with a prior customer to get an idea of how your projects would be handled. 3. Effective communication is the key to a successful outsourcing project. You must have your project details and goals clearly communicated to your vendor and make sure they understand your requirements before handing them the project. More importantly, ensure that they know the product specifications, finishing and manufacturing quality standards and delivery date. 4. Remember that the cheapest provider may not the best option for your business requirements. Smart industries do what they do best and leave the rest to others. Businesses need to be clear about their goals, long term visions and priorities. It is time to ask yourself some critical questions – - Which is more profitable – mass producing 100 plastic products or designing a top-notch product and patenting it? - What helps you more – a “Made in America” tag, or better customer service, advertisements, innovation and better products? Above all, what works for one company does not work for another. Hence, evaluate the pros and cons of hiring a plastic injection molding firm and make a calculated decision that will benefit your business.


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Need Custom Plastic Parts? Hire a Plastic Injection Molding Company (Contd.)

There are more reasons to hire an outside service for your plastic injection molding needs. First off, it can help you to focus on core business activities.

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Plastic Injection Molding Takes the Weight Off You

80% of a company’s profits come from 20% of their customers. Thus, it is important that companies spend 80% of their time and energy looking after the needs of their customers that matter. Instead, most businesses spend their time looking into aspects that give them very little profit or sometimes, no profit at all. This is extremely frustrating and tiring for a business owner. Upon careful evaluation, you will find that your time is better spent focusing on R&D, global expansion, innovative product ideas, and branding than getting involved in making mold bases for all of your plastic products, fabrication and quality control.

A positive side effect of outsourcing your plastic injection molding is they can focus on creative ideas, developing solutions to interesting problems, and creating novel engineering products that give your business an edge over your competitors. With fewer distractions, your team of engineers can focus on adding new products to your assembly line and venture into new and exciting directions. Branding and marketing Outsourcing is also known as contract manufacturing, where two or more companies get together and manufacture a product. One company takes care of the research and product design, another company takes care of the manufacturing, and the third company is responsible for branding and product marketing. The profits and losses are shared equally by all companies and thus, the risks are mitigated to a large extent.

Plastic Parts: No Muss, No Fuss

You need not get into a contract or partnership with the firm providing plastic injection molding services. All you have to do is hire them and have them take over the manufacturing part for a fee, and then you can intensely focus on branding and advertising. 3. Improved quality Plastic injection molding firms provide various types of design and fabrication services ranging from mold-base building, molding and finishing, quality control, and manufacturing quality certifications according to your specifications. Also, molding firms have state-of-the-art injection molding equipment and ISO certifications that ensure extremely high quality finished products delivered to your customers. The skilled workforce, proficient managers and manufacturing experts in these companies make sure that there are no errors in measurements or design flaws in the finished plastic products. Thus, it is a no-brainer that products from plastics injection molding firms are much better in quality than the products manufactured in-house.

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Need Custom Plastic Parts? Hire a Plastic Injection Molding Company

If your company need plastic parts, you have a choice to either manufacture your product parts in-house or hire a plastic injection molding company. While there are businesses that successfully fabricate all their products in-house and make a huge profit, most companies are well off outsourcing the manufacturing to a third-party vendor while they focus on other important aspects like research and product branding.

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Why Should You Work With a Plastic Injection Molding Company in Chandler?

For, this is a good choice to make. On the surface, outsourcing custom plastic parts manufacturing to China or India may seem cheaper on the surface, the amount of money that you save can be offset by the diminishing quality of the products.

If you’re oft two minds about hiring a vendor to manufacture your plastic parts, we’ve compiled a list of benefits and considerations that will hopefully, help you make the right choice. Read on.

Reduced costs is one big reason.   Fabrication firms pointed out that the prime advantage of outsourcing is the reduced cost of manufacturing. Sure enough, businesses save money by not having to buy specialized equipment for injection molding. But there are other “hidden” costs that you save such as – i. Direct labor costs – You need not worry about hiring and employing workers on payroll and paying their wages and providing them with benefits. ii. Indirect managing costs – These include hiring personnel for managerial jobs like supervisors and production managers, infrastructure costs, and other labor related expenses. You manage to save a huge chunk of money by not having to create a whole new department to oversee fabrication. iii. Maintenance costs – You will need to house your injection molding equipment in an appropriate facility and ensure that it is serviced from time to time. Businesses can avoid these costs by choosing to hire a plastic injection molding company to take care of all their manufacturing. In addition to the above, expenses related to ICT (computers and telephone services for employees), future overheads,

Human Resource management costs, and others are also taken into consideration. A plastic injection molding company does all of this as part of their service, without charging you a separate fee. Thus, there is a noticeable cost-wise advantage when businesses

Plastic Injection Molding in Chandler: Wrapping Up

Whether you need a dozen part or several thousand, go to a plastics manufacturer.  They can make as little or as much as you might need.

So keep it in the US.  Hire a company that does plastic injection molding.

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Plastic Injection Molding: The Creation and Results of a Beneficial Technology (Contd.)

Plastic injection molding helps organizations make a lot of different parts and components.  This article will explore different types of molding

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The Types of Custom Plastic Parts

Custom plastic parts can be further customized based on the type of molding involved.  Compression molding, for example is excellent for bigger products such as automobile parts. Compression molding is often formed in sheets. The process is called curing and the central purpose for curing is it assures the integrity of the product for the long haul. In the same lines as other molding techniques, when the part has been finally formed, it is detached from the mold. If the material for the sheeting plastic is utilized before it is removed, the material will then be trimmed. 

High-strength compounds settings like thermal resins are then formed into a mold to produce reinforced plastics and fiberglass. The process is highly advantageous for the auto industry, simply because of the superior strength properties of the materials which makes up the plastic.

Blow Molding: Great for bottles and hollowed products

A method that is very similar in steps to glass blowing, which involves a parison (plastic tube), that is inflated by oxygen. This desired shaped is produced from air pushing the plastic against the mold. The piece will then be injected after it has finally cooled down. 

The manufacturing process of blow molding is usually done in a high volume, which churns out one-piece hollow objects. If the need to make a king’s ransom of bottles is ever needed, this is the process is for you. Uniform, thin-walled containers are produced in a very uniformed fashion created by blow molding. The process is always deemed as an economical venture.

Extrusion Molding: Excellent for lengthy hollow-formed products such as straws, pipes and tubings

While contrasts of other molding utilize extrusions to get the plastic resins within the molding, The plastic will directly be placed into a die. What determines the final shape of the product isn’t the mold but it is the die. The tubing is then cooled down, extruded then rolled or cut for shipping.

Injecting into Life, One Custom Plastic Part at a Time

The plastic parts which come from these machines are a part of a creation of some of the most extraordinary, life saving and efficient products that benefit mankind on the everyday. Underrated and partly ignored, the products that spawn from the plastic injection process will always be at the forefront of our worlds productivity.

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Plastic Injection Molding: The Creation and Results of a Beneficial Technology

Plastic injection molding is a method of industrial fabrication using molds to make plastic parts.

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General Information About Plastic Injection Molding

Plastic injection molding is different from traditional reaction molding process in that it strictly depends on mechanical mixing as opposed to pressurized impingement mixing. Some of the key materials are liquid silicone rubber and other resins.

The process is efficient and allows for mass production of custom plastic parts such as isolators, o-rings and electronic contacts. 

The material properties of the finished plastic parts is due in no small part to the sheer versatility of  liquid plastic injection molding. The plastic is heated until it's molten.  Sometimes more than one type of plastic is mixed in, as are other resins  The unique characteristics that the resins provide can come out opaque or transparent, clear, or colored. In addition to how they look, these particular materials can act as conductors or insulators, depending on their chemical composition.

Today, plastics are being developed to create everything from auto parts to synthetic limbs for the human body. Each unique application requires it’s own manufacturing process that will mold all the different parts to the right specifications. Below you will get an understanding of the different types of plastic molding parts and the benefits that they employ.

The Liquid Plastic Injection Molding Process

The process of liquid injection molding sets it’s focus on the mixing and dispensing of the apportioned plastic-based materials along with a series of plungers. On a normal basis, the base forming plastic is contained by one plunger, which is then backed up with fibers and additives. The plunger will steadily hold on to the catalyst which produces the mixing reaction into full activation. The injection of the compounded material commences the injection straight into the sealed molding and after it hardens, the component then becomes injected after nearly finishing, directly into the molding machine. The materials most commonly involved in the liquid injection molding process are silicones and acrylics. The machine hardware can become clogged with liquid plastic, to help in the prevention, a spring-loaded pin nozzle is then used for the stage of injection.

The leftover plastic is trimmed off and finally the part is completed.  So remember, if you need custom plastic parts, contact a plastic manufacturer.

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The Fives Stages Of Plastic Injection Molding (Contd.)

Plastic injection molding is one of the most widely used processes in manufacturing.  Since plastic is a material that, when heated to the proper temperature, becomes molten, that means it can be shaped into a wide range of parts.

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Custom Plastic Parts:  The Final Steps of the Manufacturing Process

Stage 4: Ejection

After enough time has passed, the custom plastic part that has cooled may be removed from the mold through the ejection system, which is affixed to the back of the mold. When the mold has been opened, it is then pushed out by a mechanism. In order to eject the part, force must be applied--this is because the cooling process causes the part to shrink and adhere to the mold. A release agent may be sprayed on to the mold cavity surfaces before the material is actually injected, so as to make the ejection process easier. The dry cycle time of the machine can be used to estimate the time required to open the mold and eject the part; this estimate needs to include the time it took for the part to be pulled free from the mold. Once the part has been ejected, the mold may now be clamped shut for the next shot.

Stage 5: Post Processing

As with any other cycle, some post processing is usually required--a time used to take care of odds and ends. During the cooling phase, there will be solidified pieces left inside the mold. This excess material needs to be trimmed from the part;as we covered previously this can be achieved by using cutters. For certain types of material, like thermoplastics, scrap material that comes from this trimming may be recycled. The pieces are placed into a plastic grinder, also referred to as granulators or regrind machines, which will regrind the scrap into pellets. The integrity of the properties of these material may be compromised, so the regrind needs to be mixed with raw material in the proper ratio to be reused in the plastic injection molding process.

Injection Molding and Final Thoughts

Sometimes, only a handful of parts are needed.  Other times, hundreds or even thousands of parts are called for.  As a result, when you're looking for a company that does plastic injection molding in Chandler, make sure that you  find one that can not only make you the part to your specifications, but one that can make you the amount that you need. 

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The Fives Stages Of Plastic Injection Molding

Injection molding is a process that is used when plastic parts need to be fabricated. There are several products that are manufactured with the injection molding technique and each varies in their sizes, applications and complexity. Usually, this process requires injection molding machines, raw plastic materials as well as molds. The plastic is melted down into this machine and then injected into a mold, where it is left to cool and eventually solidify into the final product. The process for injection molding is relatively short, on average taking between two seconds and two minutes. Lets take a moment to discuss the four stages that are involved in this process.

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Plastic Injection Molding: Initial Stages

Stage 1: Clamping
Before anything is injected into a mold, both halves of the mold have to be clamped together in order to ensure they are securely closed. Each half is fixed to the injection molding machine and one of the halves is allowed to slide. The clamping unit, which is hydraulically powered, then pushes both of the mold halves together and gives off enough force to keep the mold securely fastened while the material is being injected. How much time this process takes is completely dependent upon the size of the machine; larger machines exert greater force and will require much more time.

Custom injection molding is also based on the quantity as well as materials used in the molding process. 


Stage 2: Injection
In the injection stage, plastic pellets are fed into the machine and the injection unit pushes them towards the mold. During this time, the pellets are melted down by the pressure and heat. This molten material is then quickly injected into the mold which causes a buildup of pressure which, in turn, packs and holds all of the material. The amount of material that is being injected is called a 'shot'. Its very difficult to accurately calculate the injection time because of the complex and ever-changing flow of molten plastic into the molds. However, time can usually be estimated by each shot volume and the injection pressure and power.

Custom Plastic Parts: The Desired Shape and Quantity

Stage 3: Cooling
As the molten plastic inside the mold makes contact with the surfaces of the interior mold, it starts to cool down. As it begins to cool, it solidifies into the desired shape. Shrinkage may take place during this phase, however, packing of material during injection allows additional material to make its way into the mold and this helps to reduce the amount of shrinkage. The mold is not opened until the appropriate amount of cooling time has passed. The time it takes for cooling can be estimated from the part's maximum wall thickness as well as various thermodynamic properties of the plastic itself. After the custom plastic parts have cooled, then any excess material is trimmed off.

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Plastic Injection Molding and Professional Design (Contd.)

The products plastic injection molding can produce are simply inexhaustible and comprise diverse components.


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What Can Be Made With Injection Molding? 

From small packaging parts like bottles, lids, tops and covers to large automotive components, injection molding is the source of several manufacturing products. Some of the products of this process include electrical switches, automotive dashboard houses and wheel bins, power-tool housing, drug inhaler units, DVDs and telephone handset among others. Battery casings, recycling boxes, disposable razors and crates are all parts resulting from injection molding. Virtually all manufacturing practices involve some level of injection molding which is why the process yields tens of thousands of products used for various functions.

• Custom parts – When looking for custom plastic parts, as we covered previously, it is important to contract professional and experienced molders. Custom parts will require modification of the impression molding tool to provide needed appearances. This requires the services of an expert who can guarantee required outcomes. The easiest way to contract molders is through their official websites. They should be linked to reputable companies in the plastic industry and must have proof of providing high quality products only. Machine size and computerization Large machines that spread over a wider surface area provide a base to counter the injection pressure and also boost hydraulic power. The use of computer technology on the other hand leads to efficiency, reduced time and labor as well as consistency of outcome. Bigger molding machines also provide higher locking force which is a combination of hydraulic pressure and toggle clamping.

Computer Technology and Plastics Design

Computer technologies are also used when redesigning the molding surface using CAD applications and advanced impression tools. When looking for custom plastic parts made from injection molding, the distributor must be a genuine one and licensed. This guarantees high quality products that match desired description. Conclusion
Plastic injection molding is a very popular technique used in modern manufacturing of parts and components. Various materials are used and the pressure applied also varies depending on the product being created.

The technique produces both small parts and large wholesome components which is why manufacturers love employing it in their processes.

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Plastic Injection Molding and Professional Design

Many businesses and companies use custom plastic parts for their packaging materials, product housings, cases and covers among other small components.

Custom Plastic Parts Are Easy to Get | 602-437-0136

What is Plastic Injection Molding For?

Injection molding is the primary technique used in the plastic manufacturing industry to produce such parts. When looking for custom plastic parts, a number of considerations must be looked into. It is also important to understand the plastic injection molding processes used and specific materials that make up the molded part. There are many reasons why businesses or individual clients may need custom parts ranging from patenting designs to a way of branding their business. These parts are made using high precision tools and processes to achieve consistency and efficiency in production.

Examples of plastics used
In plastic injection molding, specific types of thermoplastics and thermosetting polymers are used. These plastics are easy to melt, channel, mold and cool under high pressures. Some of the plastics commonly used for this type of injection molding include;
• Acrylonitrile-Butadiene-Styrene ABS
• Polystyrene GPRS
• Polypropylene PP
• Polycarbonate PC
• Nylon PA
Different plastics present varying properties and attributes. They are used for different components. Injection molding can also use elastomers, glass and confections.

The Molding Process

Plastic injection molding is used to produce a range of products that include small home-use tools and parts to large complex components. A special injection molding machine is used with a set of repetitive instructions to allow mass production and efficiency. Most modern machines feature computer control which relies on sensor-fed information to initiate machine action and molding. The process comprises material melting, channeling to molding tools and cooling. Machines can print a given single part or employ multiple impression techniques to produce different components of the entire product.

A typical plastic injection molding machine consists of a barrel equipped with reciprocating screw, runner channels and paths as well as a molding tool. The machine uses hydraulics to exert pressure and also inject these plastics. Injection material is loaded to the heating barrel via a hopper. Once the polymer has been heated, rotating screws basically maintain heat and crush non-fluid plastics before releasing it to flow along the runner channels. The final stage is cooling in the molding tool which provides desired impression. In order to allow quick production, the molding tool is made of non-stick smooth surfaces that leave desired impressions on the cooled component.  That's what plastic injection molding is in a nutshell

We will cover this more in a future article.

AZP & Associates
295 E. Corporate Place
Suite # 108
Chandler, Arizona 85225
602-437-0136http://www.azpandassociates.com