当需要成型超出注射设备最大注射量,同时不过分降低材料的力学性能,挤注是可以采用的办法。在塑料成型过程中,对于大型设备来说,总是存在制品最大尺寸和投资的权衡问题。对于一个具体的制品来说,如果成型设备的注射量略低于所需要的熔体量,可以用挤注成型技术解决这种受限问题。 When the need to shape injection equipment beyond the maximum injection volume, while not excessively reducing the mechanical properties of materials, extrusion is a possible solution. In the plastic molding process, for large equipment, there is always a trade-off between the maximum size of the product and the investment. For a specific product, extrusion molding techniques can be used to solve this limited problem if the injection molding equipment is slightly less than the required melt volume.