casting precision_casting precision

1. ပျော်ရွှင်စရာ ဖန်တီးမှုကို လှုပ်ရှားစေပြီး အမျိုးအစားမျိုးစုံအတွက် ဟန်ချက်အလုပ်ကလုပ်နိုင်သည်။

မိုးခိုးထွက်လွှင့်ခြင်းတွင် သံမဏိများ၏ အသုံးပြုမှု

Các bước thực hiện

Despite its many advantages, green sand casting does have some drawbacks. One of the main challenges is the potential for sand erosion, which can occur during the casting process. If the sand is not adequately prepared or maintained, it can lead to defects in the final product, such as blowholes, sand inclusions, or poor surface finish. This necessitates careful control of the sand mixture and regular quality checks.

The vacuum sand casting process begins with the preparation of a sand mold, which is typically made of a mixture of sand and a binding agent. In traditional sand casting, the mold is often subject to atmospheric pressure, which can lead to defects such as gas porosity and inclusions in the final cast product. Vacuum sand casting, however, mitigates these issues by creating a vacuum inside the mold cavity before the molten metal is poured.

Furthermore, the design of the molds can be more straightforward with optimum wall thickness, facilitating easier ejection and reducing the likelihood of defects during casting. This simplification contributes to a more efficient production line and lowers the overall manufacturing costs.