Guide to Plastic injection Molding and Its Benefits
Today, components of large products that we use today are made using a process called injection molding. Ice trays, bottle caps, and bins are just some of the products that are made from injection molding which uses mold cavities where molten material is poured and solidified.
The different kinds of materials that can be sued for injection molding are glass, metal, and thermoplastics. In the discussion below, we will look at plastics which is the best materials among others in terms of cost and recyclability.
Plastic is a low cost alternative to expensive metal and glass. Plastic is known for its durability, rust resistance, and toughness despite its being low in density. If you use thermoplastic, it is possible to produce complex shapes at a much lower cost than any other material. Its pliability allows it to take o almost any shape but hardens when cooled. There is a need to put additives so that the plastic will not be so brittle especially when exposed to very cold temperatures. If you want to form other shapes from a finished product, you can just simply reheat it.
Imagine if all plastic products in the world were handmade. We would be left with misshapen and structurally weak objects that wouldn’t last a day. Injection molding helps to achieve design precision and maintain structural soundness. Here are some of the advantages of this invaluable process.
Minimizing or eliminating scrap is one of the benefits of using injection molding because the cavities can only contain the amount of plastic that is needed. You benefit on money savings and lesser problems with waste management.
If you have waste plastic then they can be used to form other important parts and components. The quality of this waste plastic is the same as with virgin plastic. There is a great minimization of waste.
Injection molding labor cost is a lot lower than molding plastic by hand. There is high productivity with injection molding and it produces products at a much faster rate.
If we speak of defects, plastic made with injection molding have very little or no defects. Burrs, uneven layers, blisters, voids, and empty spaces on the surface are the common defects of this type of molded plastic. They remake products that are defaced.
People think of plastic as bad because it is non-biodegradable but it is highly recyclable like plants can use discarded and unused plastic parts.
With injection molding there is a shorter finishing time because the process always takes care of most of the work. Labor cost and time is further reduced.
Molded plastic products are often the only solution where metal and glass cannot be used. Industries like automotive, oil, gas, and electronics use plastic on a regular basis.
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