Advantages of Plastic Injection Molding
A process called injection molding is used for making most of the products we use today, particularly components of large products. How these products are done is through the use of mold cavities where molten materials are poured and solidified, and some examples of these products are ice trays, bottle caps, and bins.
The different kinds of materials that can be sued for injection molding are glass, metal, and thermoplastics. Below we will look at plastics and how this material is the best 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. Producing complex shapes at a much lower cost than other materials is possible with thermoplastic. Taking on any shape is possible with thermoplastic because it is pliable and it hardens upon cooling. In order to reduce brittleness when plastic is exposed to very cold temperatures, additives are added. Reheating the finished product will allow you to change the form of its shape.
Imagine if all plastic products in the world were handmade. We will have products with bad shapes and are structurally weak. Injection molding ensures precision in design and soundness in structure. The process of injection molding has other benefits like the ones given below.
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. With this you get to save money on plastic, and you don’t have much waste as to worry about waste management.
Other parts and components can be made from waste plastic. The quality of this waste plastic is the same as with virgin plastic. Therefore waste is minimized.
Labor cost for using injection molding is a lot lower than what it would cost to mold plastic by hand. There is high productivity and the time taken to manufacture products is drastically cut down.
There are little or no defects with injection molded plastics. 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.
The injection molding process takes care of most of the work which makes the finishing time shorter. The cost of labor and time is reduced further.
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.