Advantages of using hot runner in injection molds

Plastic mold processing, production and manufacturing manufacturers can reduce or no water parts after hot runner, there is no plastic raw materials, so as to save raw materials. Plastic shell stepping on hot runner can improve the quality of molding products and reduce the molding cycle. Hot runner mould has been widely used in today's industrialized capitalist countries and regions. This is mainly because the hot runner mould shell has the distinctive characteristics as shown below.

1. Reduce the product forming cycle, improve efficiency;

The product can be injected immediately after forming and solidifying because there is no time limit for flow passage and secondary passage cooling. Many thin wall products manufactured with hot runner molds can be formed in about 8 seconds.

2. Save raw materials;

Plastic raw materials will be produced in the process of injection molding of traditional molds. Plastic products with high requirements can not be used with plastic raw materials (reshaping secondary materials), because the repeated use of secondary materials will make the molecular structure and characteristics of plastic melt, and continued use will reduce the quality of products.

Because there is no inner cold channel, the mould shell of hot runner will not produce plastic raw materials. This is particularly critical for the latest projects in the application of expensive plastics. The objective fact is that the important hot runner manufacturers in the world are developing rapidly at a time when petroleum and plastic raw materials are more expensive. Therefore, the specialty of hot runner is an effective way to reduce material cost and control cost.

3. Improve product quality

During the whole process of hot runner mold shell forming, the operating temperature of plastic melt can be precisely controlled by the operating system of the runner. Plastic can be introduced into the cores in a more uniform state, resulting in a uniform quality of plastic parts. Hot runner molding plastic parts into the mouth of high cost performance, low internal stress after demoulding, plastic parts deformation small injection molding products on the surface of the unique degree of further improve. Therefore, many high volume products on the market are manufactured by hot runner mold. As we know, many plastic parts in wireless intercom cases, mobile phone cases, printing cases, computers and cars are made of hot runner molds.

4. Eliminate the follow up production process, is conducive to production and processing automation control;

The product is finished product after the hot runner mold shell molding, without cutting into the glue mouth and recycling production of cold glue track and other processes. It is conducive to automatic control of production and processing. Many food manufacturers at home and abroad combine hot runner with automatic control to greatly improve efficiency.

5. Expand the scope of application of injection mold processing and molding production technology;

Many excellent plastic molding processes have been steadily developed in the specialty of hot runner. Such as PET pre-molding production, multi-color co-injection in mold shell, a variety of raw materials co-injection production process.