3 Manufacturers Tips from Someone With Experience

Why Plastic Injection Molding Is Useful

Today, components of large products that we use today are made using a process called injection molding. The process uses mold cavities into which materials in molten state are poured and solidified to from useful things like ice trays, bottle caps, bins, and other things.

There are many different kinds of materials which can be used for injection molding and this includes glass, metal and thermoplastics. If we consider cost and recyclability, plastics rule over the other materials, and this will be discussed below.

As we know plastic is the low cost alternative to expensive metal and glass. Plastic is known for its durability, rust resistance, and toughness despite its being low in density. Producing complex shapes at a much lower cost than other materials is possible with thermoplastic. Its pliability allows it to take o almost any shape but hardens when cooled. Plastic becomes brittle in very cold temperatures and this is why they put additives to prevent this. 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 ensures precision in design and soundness in structure. Below are some of the other benefits of injection molding.

If molds are used the amount of scrap is reduced or eliminated because the cavities are shaped to contain only the amount of plastic that is needed. You benefit on money savings and lesser problems with waste management.

Other parts and components can be made from waste plastic. Scrap plastic and virgin plastic are of the same quality. There is a great minimization of waste.

The cost of labor for using injection plastic is not as high the cost for molding plastic by hand. Productivity is high with injection molding and it is faster to manufacture products.

Injection molded plastics usually have very little or no defects. Sometimes there are defects in the resulting plastic product with the common defects being burrs, uneven layers, blisters, voids, and empty spaces on the surface. They remake products that are defaced.

Despite its bad reputation as being non-biodegradable, plastics are highly recyclable and plants often use discarded and unused plastic parts.

Since almost everything in the work is done in the injection molding, then the finishing time is shorter. Labor cost and time is further reduced.

If metal and glass cannot be used in certain applications they use molded plastic products. Industries like automotive, oil, gas, and electronics use plastic on a regular basis.

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