167. Plastic mold with hot runner what a good book?
Runner - because there is no flow, saving removal of material to the process, effectively saving manpower and processing costs. Improved utilization of raw materials and production efficiency, reduce the molding cycle. The main benefits of using hot runner who does? Below is a brief introduction to use in hot runner injection mold in the benefits:
1) Can simplify the design of certain types of mold. For the three-plate mold, it has three points in the mold surface, in taking material to the more difficult when, difficult to achieve true automation of production operations. At the same time the quality of materials to the proportion of the total injection, a larger waste of raw materials, the use of hot runner and simplified the structure of plastic mold, you can use two-plate model, significantly reducing production costs.
2) Limited the decrease in melt temperature, a sufficiently long cavity injection molding process, unlike in the cold runner melt.
3) Can accurately control the temperature of plastic, easy to control the dimensional accuracy of products, quality.
4) In the hot runner injection in the lower pressure, so that melt into the cavity of effective pressure.
5) In a large plastic mold, injection site to facilitate the location of a reasonable choice. Beneficial to obtain more uniform mold filling, reduce the cavity temperature and reduced pressure loss.