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A Quick Look at Plastic Injection Molding

Injection molding is a very popular form of manufacturing; it may even be the most popular type of manufacturing in the world. During this process, the material will be heated in a barrel, mixed and will then be forced into a molded cavity. Once the mold has cold the material will remain in the shape of the cavity. Many different materials can be used for this process including glass, metal, sugar, and plastic. There is an incredible amount of items that are produced in this manner, some of the most common are combs, medical supplies, automotive parts, military equipment and a lot more. In this article we will narrow down the discussion and only be discussing plastic injection molding.

First we will look at the history behind plastic injection molding. The first machine used for plastic molding was patented all the way back in 1872 by John Wesley, an American inventor. Of course these first machines would create simple products such as buttons and hair combs. Fast forward a century and a guy by the name of James Watson invented a machine that was gas assisted that would drastically change the plastic injection molding process. This machine allows for products to be produced at a much quicker rate, it also allows for more complex items to produced.

Next we are going to take a look at the equipment that is often used to in plastic injection molding. The mold or die as many refer to it is one tool that is used to produce plastic parts. There are a couple different materials that are used such as aluminum, steel, or copper alloy, each one will have benefits and disadvantages, the one that is used will depend on what it is being used for.
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Another important piece of equipment when it comes to plastic injection molding is the mold storage. Of course this is where the mold will be stored when it is not in use. Custom molds are not cheap so it is important that you storage plans be up to date. Having proper temperature and humidity for your mold will ensure that it lasts as long as possible.
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The last thing we will do is look at the advantages of plastic injection molding. There are many advantages but one of the biggest for manufacturing purposes is that it is cost effective. These machines can produce products very quickly and can produce large quantities. Another reason it will save money is because of how efficient it is, these machines leave behind little waste. Along with it being efficient and creating little waste, it is also very eco friendly. Research has shown that parts and products manufactured through injection molding are high quality and extremely durable. To increase quality, all you need to do is reinforce the plastic with another material.

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