1. Unpacking inspection of the plastic granulator+s extrusion die after arrival: take out the packing list after unpacking and unpack for inspection. Operation manual and other technical documents, according to the contents of the packing list, set up and count the whole mold, accessories, special tools, etc.

2. Half of the technical standards and models of the extrusion die. Generally, stainless steel plate and other materials with corrosion resistance are used as the extrusion parts of the extrusion die, especially when the extrusion material is modified PVC. And adjust to hrc24 or above to ensure a certain service life. There should be no bumps, scratches, burrs, attachments, rust and other defects. The working surface of the die, setting die and its parts shall be smooth. Abrupt changes in cross-section and stagnant areas shall be avoided as far as possible. The flow system of die head should be smooth along the direction of melt flow. The repeatability error of loading and unloading of the corresponding positions among the formworks shall not be greater than 0.03mm. The welding surfaces and joint of the extrusion die head shall be well sealed, and the formworks shall be reliably positioned. The local clearance shall not be greater than 0.02mm

In general mode, the water gas system of plastic granulator shall not be interconnected. The water pipe joint, cooling system and vacuum system of the setting die of the extrusion die shall be general and leak free. The vacuum pipe joint shall be marked clearly and shall not affect the pipe connection.