pvc hose extruder acceptance test

① heating the barrel heating, according to the temperature of the extrusion process to adjust the temperature on behalf of representatives.
② barrel heating up to the process temperature requirements, the constant temperature heating th. Record heating temperature time,
③ with mercury thermometer Jane machine section temperature, verify, adjust the instrument display temperature and mercury thermometer measured temperature difference.
④ test tube heater heating resistor in the open circuit alarm, see if accurate and timely alarm.
⑤ Re-tighten the connection screw between barrel and barrel base.
⑥ lubrication pump start, after working 3min for pulling the V pulley rotation, should be transferred
Move flexible, no blocking phenomenon.
⑦ low-speed start driving screw rotation motor, observe the voltage, ammeter swing
Whether there is abnormal; see screw rotation is smooth I screw and barrel whether there is rotational friction
Phenomenon; listen to the transmission parts work whether there is abnormal sound. Everything stops immediately. Note
Italy: screw air running time should not exceed 3min.
Fourth, feed production test acceptance
① test test the quality of raw materials. Raw material of the particle size is uniform, whether the material
Moist (such as containing more water, should be 1: dry treatment), whether the material impurities. with
When verifying whether the raw material grade is in conformity with the technical requirements of test materials.
② Check the screw structure to see if it is suitable for test materials plasticizing process conditions.
③ install the filter and manifold.