1. Causes and solutions for fish eyes on the outer surface of steel pipes
Possible reasons: The machine head temperature is too high and cooling is insufficient.
Troubleshooting method: lower the machine head temperature and increase the cooling water volume
2. Causes and solutions to the rough surface of steel pipes
Possible reasons: ① The material contains too much moisture; ② The material temperature is low; ③ The die is not clean; ④ The extrusion speed is too fast.
Troubleshooting methods: ① Increase the temperature of the dryer to dry the material; ② Adjust the process temperature; ③ Clean the die; ④ Adjust the extrusion speed.
Post time: Dec-14-2023