The process of rotational foaming molding of liquid reactive resin was studied, with unsaturated polyester resin as the shell of unfoamed resin moulded part, and polyurethane as foamed core layer.
以不饱和聚酯树脂作为非发泡树脂成型制品的外壳，用聚氨酯树脂发泡形成泡沫芯层，研究了液体反应树脂的旋转模塑发泡成型泡沫夹层制品的工艺过程。
The said head consists of casing, top cover, rotor core and sliding bearing and the said rotor core is composed of moulded turbine, needle and ring cushion.
机头外壳、机头上盖和手柄是注塑而成的。机头由机头外壳、机头上盖、转子芯和滑动轴承组成。转子芯由注塑涡轮、车针和垫圈组成。
应用推荐