A. Before testing the mold, check whether the mold is assembled and whether the raw materials are dried.

B. Before changing the mold, spray the mold with anti-rust agent. Then, replace the mold and return to its position. Finally, fill in the record form.

C. When loading the mold, align the center point of the mold. Then set up the mold. Lock the mold and check whether the high-pressure clamping is effective. The clamping force is determined by the size of the mold. The high pressure required for a large mold is 80~90 PMa. While the high pressure required for small molds is 40~65 PMa. After the high pressure adjustment of the mold clamping, the switch mold is adjusted to the normal speed. Then adjust the low pressure time, distance, pressure, and speed. It is important to work at low pressure during normal production. The cause of mold damage is the incomplete low pressure work.

D. To clean the material tube, we should remove the materials and impurities of other colors in the material tube. Then, reduce the injection pressure, holding pressure, injection time and pressure holding time. Reduce the pressure to 50PMa and increase it later according to the product condition. Adjust to the required pressure. And compare the low an medium pressure forming condition samples with the high pressure ones to analyze the flow channel mode.

E. Try the mold manually before testing the mold to confirm whether the demolding action is smooth and whether it can return to its original position. And spray the mold release agent to the master mold when the mold is ejected. Then adjust the position of the demolding mode after forming.