The hot runner plastic mold has the following significant characteristics:
1. Shorten the forming cycle of parts and improve production efficiency
Due to the lack of cooling time limitations for the main and secondary channels, the parts can be ejected in a timely manner after molding and curing. Many thin-walled products produced using hot runner molds have a molding cycle that can be completed within 8 seconds
2. Saving plastic raw materials
Traditional molds produce nozzle materials during injection molding, and plastic products with high requirements are not allowed to use nozzle materials (recycled secondary materials) because repeated use of nozzle materials can degrade the molecular structure and performance of the plastic, and reuse can affect product quality. There is no nozzle material (waste) generated in the hot runner mold due to the absence of a cold runner. This is particularly significant for expensive plastic application projects. In fact, major international hot runner manufacturers have all experienced rapid development in the era of high prices for petroleum and plastic raw materials in the world. Because hot runner technology is an effective way to reduce material costs, reduce material costs, and save costs
3. Reduce defective products and improve product quality
During the hot runner mold forming process, the temperature of plastic melt is accurately controlled in the runner system, and plastic can flow into each mold cavity in a more uniform and consistent state, resulting in a plastic component with consistent quality. The plastic parts formed by hot runner have good gate quality, low residual stress after demolding, small deformation of the plastic parts, and greatly improved surface aesthetics of the injection molded products. So, many high-quality products in the market are produced using hot runner molds, such as familiar phone cases, phone cases, printer cases, computers, and many plastic parts in cars
4. Eliminating subsequent processes is beneficial for production automation
The finished product is formed by a hot runner mold, without the need for trimming gates and recycling cold rubber channels, which is conducive to production automation. Many foreign product manufacturers combine hot runner with automation to greatly improve production efficiency
5. Expand the application scope of injection molding technology
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