Technical conditions of ABS tube extrusion molding process

① Selection of raw materials. There are many kinds of ABS resin, should choose suitable for extrusion molding pipe resin, such as the choice of E-7, E-3 or E-1 ABS resin produced by the synthetic rubber factory of Lanzhou Petrochemical Industry Company.

② The raw material should be dried and dehumidified in the oven at 70 ~ 80℃ for 4h before production. Control water content below 0.1%.

(3) The plasticizing raw material is molten, and the temperature of the extruder barrel is 150 ~ 165℃ in the feeding section, 165 ~ 180℃ in the plasticizing section, and 170 ~ 180℃ in the homogenizing section.

(4) The temperature of molding die for forming tube billet is 175 ~ 190℃.

⑤ The draft ratio is 1 ~ 1.2.

⑥ Cooling pattern with circulating water temperature of 15 ~ 22℃.