Advantages of Plastic Injection Molding
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.
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.
The best and low cost alternative to metal, which is expensive, and glass, is plastic. Durable, rust-free and very tough despite its density, are the characteristics of plastic that makes it superior to others. In particular, thermoplastic allows manufacturers to produce very complex shapes at a much lower cost than other materials. Taking on any shape is possible with thermoplastic because it is pliable and it hardens upon cooling. 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 a world where all plastic products have to be created by hand. These products can come out misshapen and structurally weak objects. With injection molding design precision is achieved, and structural soundness is maintained. The process of injection molding has other benefits like the ones given below.
Since the molding cavities can only contain the amount of plastic that is needed, it minimizes or eliminates scraps. 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. Scrap plastic and virgin plastic are of the same quality. There is a great minimization of waste.
Injection molding labor cost is a lot lower than molding plastic by hand. Productivity is high with injection molding and it is faster to manufacture products.
There are little or no defects with injection molded plastics. 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.
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. It is on a regular basis that plastics are used in industries like automotive, oil, gas, and electronics.
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