Defects such as flow marks and patterns appear on the surface of aluminum alloy die castings

　　During the die-casting process, defects such as flow marks and patterns appear on the surface of aluminum alloy die-casting parts, which are common defects in the production process of die-casting plants. So, I have a clever solution to address these types of defects!

　　From the analysis of the causes, the main reasons for such defects are:

　　1. First, a very thin and incomplete metal layer is formed from the metal liquid entering the mold cavity, and the traces left by the later metal liquid are compensated for

　　2. The mold temperature is too low and uneven

　　3. The cross-sectional area of the internal pouring channel is too small and unknown, resulting in splashing

　　4. Insufficient pressure acting on the molten metal

　　5. Pattern: Excessive amount of paint used

　　There are the following methods to address the occurrence of these reasons:

　　1. Increase the temperature of the molten metal by 620% -650 ℃

　　2. Increase the mold temperature to maintain a thermal equilibrium of 200 ℃ -250 ℃

　　3. Thickening the cross-sectional area of the inner runner to improve the inlet position

　　4. Adjust the filling speed and injection time to form the length

　　5. Choose appropriate coatings and adjust the contrast concentration dosage

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Causes of Flow Marks in Die Casting Parts