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How to use and maintain plastic profile extrusion die correctly?
Author: plastic profiles   Source: Original   Release time: 20:06:26, April 8, 2018   read: ninety-five second

1. Unpacking inspection of plastic profile extrusion die after arrival

Unpacking inspection: after unpacking, take out the packing list, instruction manual and other technical documents, organize and count the whole mold, accessories and special tools according to the contents of the packing list.

2. Half of technical requirements and status of plastic profile extrusion die

>>Especially when the extrusion material of plastic profile is modified polyvinyl chloride, its molding parts are generally made of stainless steel and other corrosion-resistant materials, and quenched and tempered to above hrc24 to ensure a certain service life.

>>The working surface of die, die and its parts shall be smooth and free from defects such as bruise, scratch, burr, attachment and rust.

>>The runner system of die head should be smooth along the melt flow direction, avoiding the sudden change of cross section and stagnation zone.

>>There should be reliable positioning between the formworks, and the loading and unloading repeatability error of the corresponding positions between the formworks should not be greater than 0.03mm; The joint surface and joint surface of extrusion die head of plastic profile shall be well closed, and the local clearance shall not be greater than 0.02mm.

>>The cooling system and vacuum system of the shaping die should be unobstructed and free of leakage. Generally, the water and gas systems should not be connected with each other. The water pipe joint and vacuum pipe joint of the plastic profile extrusion die setting die should have obvious marks and should not affect the pipeline connection.

>>The setting die of plastic profile extrusion die should be opened and closed flexibly, and the die block in each section and water tank should ensure certain coaxiality.

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