Why Plastic Injection Molding Is Useful
Injection molding is useful in making components of large products that we use today. 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. In the discussion below, we will look at plastics which is the best materials among others in terms of cost and recyclability.
As we know plastic is the low cost alternative to expensive metal and glass. Durable, rust-free and very tough despite its density, are the characteristics of plastic that makes it superior to others. Producing complex shapes at a much lower cost than other materials is possible with thermoplastic. Because it is pliable it can take on any shape and when it is cooled, the shape hardens. 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.
If you have to make plastic products by hand, what could be the result? These products can come out misshapen and structurally weak objects. 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.
If you have waste plastic then they can be used to form other important parts and components. You can compare the quality of this waste plastic to virgin plastic. Waste is minimized or almost eliminated.
Injection molding labor cost is a lot lower than molding plastic by hand. There is high productivity and the time taken to manufacture products is drastically cut down.
Injection molded plastics usually 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. Defaced products are remade.
Despite its bad reputation as being non-biodegradable, plastics are highly recyclable and plants often use discarded and unused plastic parts.
The injection molding process takes care of most of the work which makes the finishing time shorter. It reduces further the cost of labor and time.
Molded plastic products are often the only solution where metal and glass cannot be used. Plastic is used by industries like automotive, oil, gas, and electronics on a regular basis.
Cite: go now