When the precision casting process was just produced, you may not notice some processing stripes. Thunderbolt will answer you:

Stripes appearing in precision casting?

Precision metal casting inconsistent flow of two metals, filling the cavity and leaving the remaining signs, may be due to this situation, the precision casting mold temperature is low, such as zinc alloy mold temperature is lower than 150 ° C, aluminum mold temperature is lower than At 180 ° C, such defects are prone to occur.

Precision casting process fills too fast, it is easy to form such stripes, or too much paint will produce the number of stripes. In short, the presence of stripes means these precision cast products because they have no beautiful shape and affect the aesthetic requirements of precision casting.

Under normal circumstances, precautionary measures will be taken in precision casting processing. To make the quality of precision casting processing very good, we need to choose the correct precision casting and casting method. There are also some material choices, and then a lot of experience in daily work, these seems to have been established, but it also helps you find the best casting method.

The cross-sectional area and location, shape and size of the precision cast machining door determine the flow rate, flow direction and flow state of the molten metal and are critically related to the quality of the perfect casting. The thin inner door, the metal liquid moves high, fills the thin wall and various parts beneficial, makes the casting auspicious shape clear, and also needs to adjust the speed. Precision casting processes require adjustment of the mold temperature, and the addition of overflow tanks can also avoid these problems; to avoid the use of thin, uniform paint-generated streaks.