The handling methods for the flow marks and patterns of aluminum alloy die-cast parts

① Raise the temperature of the molten metal to 620 - 650°C;
② Increase the mold temperature and maintain a thermal balance of 200 - 250°C;
③ Increase the cross-sectional area of the internal runner and adjust the inlet position;
④ Adjust the filling speed, injection time and stroke length;
⑤ Select the appropriate coating and adjust the contrast concentration and dosage.