How to control the temperature during plastic mold injection molding?
Mold temperature: Mold temperature has a great influence on the intrinsic performance and appearance quality of the product. Mold temperature depends on the crystallinity of the plastic, the size and structure of the product, performance requirements and other process conditions (melt temperature, injection speed and pressure, molding cycle, etc.).
Barrel temperature: The temperatures that need to be controlled during injection molding include barrel temperature, nozzle temperature and mold temperature. The first two temperatures mainly affect the plasticization and flow of the plastic, and the latter temperature mainly affects the flow and cooling of the plastic. Each plastic has a different flow temperature. The same plastic has different flow temperatures and decomposition temperatures due to different sources or brands. This is due to different average molecular weights and molecular weight distributions. Different types of injection molding machines have different plasticizing processes for plastics, so the barrel temperature is also different.
Nozzle temperature: The nozzle temperature is usually slightly lower than the top temperature of the barrel, which is to prevent the "drooling phenomenon" of the melt in the straight nozzle. The temperature of the nozzle cannot be too low, otherwise it will cause the melt to solidify prematurely, block the nozzle, or affect the performance of the product due to premature solidification of the melt into the mold cavity.
At present, the main industries that our factory specializes in mold development and injection molding include: auto parts, small appliances, digital products, electrical components, various remote controls, mobile phone cases, smart access control, plastic utensils for hotel bathrooms, etc. Fengben is willing to establish long-term and stable partnerships with customers with first-class quality, rich mold making experience, reasonable prices, strict quality requirements, perfect after-sales service and on-time delivery business philosophy. At the same time, we hope to establish partnerships with more customers and develop together!