Custom Plastic injection molding

Plastic injection molding processing is also called Plastic injection molding processing, it is the process of processing plastic or synthetic resin into plastic products, in the plastic production industry can be said to be one of the largest production sectors. Plastic processing is due to the development of synthetic resins and development, with the continuous improvement of science and technology, plastic processing technology has also been greatly improved. At present, it is mainly through the batching, molding, mechanical processing, joint, modification, and assembly of these steps. Let's take a look at its process in detail.  

Plastic injection molding processing flow

A, ingredients,

This is the first step of plastic processing technology, it needs raw materials in addition to the polymer, but also add some stabilizers, plasticizers, colorants, and other plastic additives, so that the processing of plastic products will be greatly improved, but also can reduce production costs. The polymer and auxiliaries are mixed together and dispersed into a dry mixture. It can also be processed into pellets.

Second, the molding

This is the most critical step in plastic processing, we need to make various forms of plastic into the desired shape of the embryo. There are many methods for this molding, and the choice is mainly based on the type of plastic, the starting form, and the size and shape of the product. If it is thermoplastic, extrusion, injection molding, calendering, blow molding, and thermal molding are generally used; If it is a thermosetting plastic, then it can be molded, transfer molded, or injection molded. In addition, there are liquid monomers or polymers as raw material casting.

Three, mechanical processing

This step can be regarded as an auxiliary process of forming. It can borrow the processing methods of metal or wood to make plastic products of precise size or small quantity. However, the performance of plastic and metal, wood, and other completely different, in the process of mechanical processing tools and cutting speed, and so on must conform to the characteristics of plastic.

Fourth, the joint

This step is to join the plastic pieces together. There are two main methods: welding and bonding. The welding method is mainly hot air welding, hot melt welding, high-frequency welding, friction welding, ultrasonic welding, and so on. The bonding method is performed using adhesives, such as fluxes, resin solutions, and hot melt adhesives.

Five, the modified

The purpose of this step is to beautify the surface of plastic products, generally through mechanical modification, that is, grinding, grinding, polishing, etc.; Then is the coating, such as the coating on the surface of the parts, with a pattern of the film covering the surface of the products; There is also color, such as painting, printing and so on; There are also gold plating, including vacuum coating, electroplating, and chemical silver plating.

Six, assembly

This is the final step in Plastic injection molding processing, where individual plastic parts are put together to make a complete plastic product.

Specification

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