1. When the injection molding machine is started, the i […]
1. When the injection molding machine is started, the injection molding machine should be fully preheated. After the barrel reaches the predetermined temperature, the temperature below 60mm is maintained for another 15 minutes. After more than 30 minutes, start the motor and start screw-related operations.
2. Match the material to the screw. Especially for corrosive materials and hard materials, such as PVC, flame retardant materials, glass fiber materials, etc., add special screws to avoid using ordinary screws.
3. If ordinary machines use corrosive materials, they need to pay attention, and use stable materials such as high-density polyethylene, high-impact polystyrene, etc. for cleaning and replacement.
4. If ordinary machines occasionally use glass fiber materials, you must pay attention to high material temperature, low screw speed, and low back pressure, remember.
5. No matter what kind of material, try not to use low temperature limit production, such as PC material can also produce 250 degrees, ABS can hardly do it at 185 degrees, but it is not good for screws, because it requires a lot of torque and wears badly . At the same time, if the lower limit problem must be used, a low screw speed should be used.
6. Every time the machine is shut down for more than half an hour, the discharge port should be closed, the material in the barrel should be cleaned, and a thermal insulation layer should be set up.
7. Avoid foreign objects falling into the barrel and damage to the screw and barrel. To prevent metal shards and debris from falling into the funnel, magnetic funnels should be added to prevent iron filings from entering the funnel if recycling materials are processed.
8. When using anti-saliva, it should be ensured that the plastic in the barrel is completely melted, so as to avoid damage to the transmission system components when the screw retreats.
9. Avoid idling and slipping of the screw.
10. When using new plastic, the rest of the bucket should be cleaned. When using POM, PVC, PA+GF and other materials, the degradation of raw materials should be minimized, and ABS and other nozzle materials should be rinsed off in time after shutdown.
