When stainless steel castings are first produced, we may not pay much attention to the processing stripes on their bodies, which are not intentionally processed by us. So why do stainless steel castings have stripes? Let's take a look together.
The residual signs of two different metal flows filling the cavity of stainless steel castings may be caused by this situation. Low mold temperatures, such as zinc alloy mold temperatures below 150 ℃ and aluminum alloy mold temperatures below 180 ℃, are prone to such defects.
If the filling speed of stainless steel castings is too fast, it is also easy to form such stripes, or if the coating amount is too high, the stripes will also be produced. In short, the presence of stripes means that this batch of stainless steel castings does not have a beautiful appearance, which affects the aesthetic requirements of stainless steel castings.
Under normal circumstances, we will take measures to prevent stainless steel castings. To ensure excellent quality of stainless steel castings, we need to choose the correct casting method. Another option is the selection of materials, and another option is to extract a lot of experience from daily work. These claims seem to hold true and also help us find a way to make castings. The cross-sectional area, position, shape, and size of the inner gate can determine the flow velocity, direction, and state of the molten metal, and have a critical impact on the quality of the casting. The thin inner gate allows for high movement of the molten metal, which is beneficial for filling thin-walled and diverse parts, making the casting aesthetically pleasing and visually clear. Additionally, it is necessary to adjust the speed appropriately. Adjusting the mold temperature and increasing the overflow groove can also avoid these problems; To avoid stripes, use thin and uniform paint.