National Molding

Plastic Belt Buckles: From Pellets to Finished Products

We can’t deny the fact that plastic buckles are quite small but they come with big benefits. You have probably seen it in your life jacket while you are doing aquatic activities, in your dog’s leash while you’re taking it for a walk in the park, in your pants while or in your backpack as you go about traveling or running errands. With this in mind, is it possible for us to imagine living a life without it?

The items mentioned above may look simple but much effort and thought were committed in making them. Plastic manufacturers utilize a special method to manufacture them as well. Some of you may have heard or read about it already.

The process used in manufacturing plastic belt buckles is called plastic injection molding. If you are interested to know how this process works, you are in the right place and the right time. We will explain it to you in plain and simple terms.

From Pellets to Finished Products

To make belt buckles or other plastic products, product designs and ideas are first conceptualized. Once a client has chosen a manufacturer to work with, they will select raw materials that are most appropriate for the project.

With National Molding, we prefer to use the raw material Duraflex. It is considered as one of the best and durable of its kind.

Once the raw materials and other requirements are already prepared, the manufacturing process can finally commence.

The Plastic Injection Process

Plastic pellets made of Duraflex, polythene, nylon, polystyrene or polypropylene are solid so naturally, they need to undergo a process to liquefy them. Once they have taken the liquid form, the raw materials will be injected into a screw chamber and into a customized mold. After the raw materials have filled the mold, it is allowed to cool.

Cooling allows the raw materials to go back to its solid state. Once they harden, they are ejected from the system. That’s how the plastic injection molding works in a nutshell!

Plastic Molding Methods

Various products require various manufacturing techniques. Some products would require the use of injection molding, blow molding, compression molding, or rotational molding. Each plastic molding technique comes with its own set of pros and cons.

The History of Plastic Molding

We have the curiosity and ingenuity of inventive minds to thank for the emergence of the plastic belt buckle. The modern method of plastic molding began around the 1940s or 1950s. The process only allowed small batches of products to be created.

When the 60s arrived, the process of rotational molding was refined. It was used in manufacturing road cones, car armrests and even marine buoys. This process was also refined in Europe.

Further advancement of plastic injection molding came. Its refinement made way for the availability of various everyday products like combs and buttons. Its finished products even reach the outer space via aerospace technology, aided health care via the medical industry, and offered entertainment via consumer products.

Ever since John Wesley Hyatt replaced ivory with plastic in making billiard balls, we can all agree that a lot of wonderful changes and improvements has been made within the plastic manufacturing industry, don’t you agree?

What is the Future of Plastic Injection Molding?

We can never tell what the future will bring, but one thing is for sure; progress will lead to more progress. You can be assured that plastic belt buckle suppliers will utilize that for the years to come!