[China Aluminum Network] Extrusion of aluminum than people feel uncomfortable is: the surface of the extruded aluminum profile blisters peeling phenomenon. Looking at the surface of a profile that should have been smooth, one small blister or patch of mottled skin appears to be unbearable. In order to reduce or even eliminate the occurrence of this situation, to prevent accidents, Xiao Lu collected and cleaned up some of the aluminum foam extrusion surface of the elimination method for your reference.
1. Reasonably design the fit size of the extrusion cylinder and the extrusion gasket, often check the tool size, ensure compliance with the requirements, and promptly repair the extrusion of the large belly of the extrusion cylinder; the extrusion pad must not exceed the tolerance;
2. Tools, ingot surface kept clean, smooth and dry;
3. When replacing the alloy, thoroughly clean the cylinder;
4. Check the equipment and equipment frequently to prevent overheating and excessive speed;
5. Strictly implement the process regulations and various systems;
6. Reasonably design and manufacture tooling, diverting holes and diverting holes are designed to be inclined within 1°-3°;
7. Strict operation, correct cutting of the residual material and complete exhaust.