Advantages of Using Hot Runners for Plastic Molds

The hot runner saves plastic molds, shortens molding cycles, reduces production costs, and improves efficiency. Hot runner molds have been widely used in various industrialized countries and regions in the world today. This is mainly due to the following salient features of hot runner molds:

1. Shorten the cycle time of the parts and improve the production efficiency. Because there is no restriction of the cooling time of the main flow channel and the sub flow channel, the parts can be ejected in a timely manner after being cured. Many thin-walled products produced with hot runner molds can be molded in less than 8 seconds.

2, save plastic materials. Traditional mold injection will produce water material. High-quality plastic products are not allowed to use water (recycled secondary material), because repeated use of the water material will degrade the structure and performance of the plastic components. Reuse will affect product quality. Since there is no cold runner in the hot runner mold, no outlet material is produced. This is particularly significant for plastics expensive applications. The fact that the world's major hot runner manufacturers are rapidly developing in the era of expensive petroleum and plastic raw materials in the world. Because hot runner technology is an effective way to reduce material costs and material costs, and save costs.

3, reduce defective products, improve product quality; in the hot runner mold process, the plastic melt temperature is accurately controlled in the flow channel system. Plastics can flow into the mold cavities in a more uniform and consistent state, resulting in consistent quality plastic parts. The hot runner molded plastic gate has good quality, low residual stress after demolding, small deformation of the plastic parts, and greatly enhanced surface aesthetics of the injection molded products. Therefore, many high-quality products on the market are produced by hot runner molds. Many familiar plastic parts such as telephone cases, mobile phone cases, printer cases, computers, and automobiles are manufactured using hot runner molds.

4, eliminate the follow-up process, is conducive to production automation; parts of the hot runner mold after the formation of finished products, no need to trim the gate and the recovery process cold glue and other processes. It is conducive to production automation. Many foreign product manufacturers combine hot runners with automation to greatly increase production efficiency.

5, to expand the application of injection molding process Wai Wai; Many advanced plastic molding process is based on the development of hot runner technology. Such as PET preform production, multi-color co-injection in the mold, a variety of materials co-injection process.