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使用热流道模具可节约原材料和能源,还可以缩短成形周期,所成形的制件质量良好。热流道模具也是自动化生产中的主要装备。几年前,一些汽车油箱盖还是用金属制造,需经几道工序才能成形。与金属油箱盖相比,用聚甲醛聚合物注射成形的油箱盖更经济,并可一次注射成形。它还具有良好的机械性能,且这种材料不透水,耐甲醇。故用聚甲醛做油箱盖非常合适。大多数汽车油箱盖装在汽车体外,且无防护罩。故油箱要受各种气候和紫外线幅射的影
The use of hot runner mold can save raw materials and energy, but also can shorten the molding cycle, the quality of the parts formed by good. Hot runner mold is also the main production automation equipment. A few years ago, some automotive fuel tank caps were made of metal and required several processes to form. Compared with the metal fuel tank cap, injection molding with a polyoxymethylene polymer tank cover more economical and can be a single injection molding. It also has good mechanical properties, and this material is impermeable to water, resistant to methanol. Therefore, the use of POM as a fuel tank cap is very suitable. Most car fuel tank cap mounted in the car body, and no protective cover. Therefore, the fuel tank to be affected by a variety of climate and ultraviolet radiation shadow