1. Check whether oil pressure system leaks and air pressure is normal.
2. Check the conveyor belt, cold bed and storage table for damage and abrasion of industrial aluminum profiles.
3. Before stretching, the length of aluminum profile should be confirmed, and then the stretching rate should be predetermined to determine the stretching length. Normally, the drawing rate of 6063T5 is 0.5%--1%, and the drawing rate of 6061T6 is 0.8%--1.5%.
4. Confirm the clamping method according to the shape of aluminum profiles. For large-section hollow profiles, insert stretching pad blocks, but ensure enough clamping area.
5. Stretch material when aluminum cooling below 50 ℃.
6. When the aluminum profile is bent and twisted at the same time, correct the twisting and then pull the bending.
7. Test before stretch, to confirm whether the predetermined tensile rate and clamping method are appropriate. Check the profile plane clearance, and, if not appropriate, to adjust the tensile rate.
8. If the normal drawing still cannot eliminate bending, twisting, or cannot make the geometric size qualified, the operator should be informed to stop squeezing.
9. The profiles on the cooling table shall not rub, collide and overlap, to prevent from rubbing.
The working efficiency and service life of industrial aluminum extruder have great relationship with installation sequence. Generally, industrial aluminum extrusion machine equipment, in addition to bear the weight of the equipment itself and the weight of raw materials used in production, but also bear the dynamic load of the work of the extruder, so the equipment must be installed in accordance with the corresponding installation procedures.
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