Why were Rupture, Crazing and Cracking, and Whitening happened?

0
Posted

Why were Rupture, Crazing and Cracking, and Whitening happened?

0

Main causes : 1. Inadequate ejecting range in molding products. 2. The mold deformed. 3. Molded products were overshot to be too tight. 4. Bad designs in the injection nozzle and the vertical gate. Molding conditions, and injection machines (Solution 1) : 1. Reduce the injecting pressure. 2. Adjust the shot volume. 3. Reduce the pressure holding time and the holding pressure. 4. Adjust the injection nozzle and the runner to be tightly connected. 5. Adjust the cooling time. Designs in molding products and models (Solution 2) : 1. Expand the ejecting range in molding products. 2. Modify the deformation and the worn parts on cutting surfaces. 3. Change the ejecting method.]e.g.: to eject by air^ Materials (Solution 3) : 1. Increase the lubricant.

Related Questions