The key to injection molding is the control of mold manufacturing and injection molding process. Mold manufacturing needs to be carried out according to product design drawings, usually including mold structure, mold cavity (or multiple cavities), nozzles, cooling water channels, etc; The control of injection molding process requires setting parameters such as shape, size, and thickness for different plastic materials and products. By continuously adjusting parameters such as injection temperature, injection speed, pressure, and cooling time, the required product quality requirements can be achieved.

Injection molding is a widely used molding technology in industrial production. It is a process of softening thermoplastic materials by heating and injecting them into molds for molding. This process is usually suitable for mass production of products, especially plastic products. Injection molding is an efficient, precise, and reliable production process. Its main working principle is to heat and melt the prefabricated plastic particles through a plasticizing machine, inject them into the mold through an injection machine, and then cool them to form and take out the mold to obtain the required plastic products.

How to reduce scrap rate in Dalian injection molding?

1、 Standardize production operations

In the injection molding process, production operations are an important factor affecting product quality and scrap rate. Therefore, standardized management of production operations is one of the important means to reduce scrap rates.

2、 Improve injection molding equipment and mold accuracy

The quality of injection molding equipment and molds directly affects the molding quality and scrap rate. Therefore, improving the accuracy and reliability of injection molding equipment and molds is another important means to reduce scrap rates.

3、 Choose suitable raw materials

The raw materials used in injection molding have a significant impact on the quality and molding effect of the product. Choosing suitable raw materials can reduce scrap rates, improve product consistency, aesthetics, and usability.

4、 Establish a comprehensive quality management system

Establishing a sound quality management system is an important means to reduce the scrap rate of injection molding. By establishing a comprehensive quality management system, product quality can be guaranteed from the source and waste rate can be reduced.

The process of injection molding includes three key steps: injection, cooling, and demolding. The heated plastic is injected into the mold through an injection machine. Then, the plastic inside the mold will gradually cool during the molding process of the product, ultimately forming the desired shape and size of the product. Removing the product from the mold completes an injection molding process.

Injection molding has been widely used in industries such as home appliances, automobiles, electronics, healthcare, and toys. Among them, in the automotive industry, injection molded parts can be used for body, interior, and engine components, such as front and rear bumpers, lamp housings, instrument panels, etc; In the medical industry, injection molded parts can be used for various medical devices, reagent kits, and other aspects.