直接利用激光快速成型的原型树脂模，结合陶瓷型精密铸造技术，制得了高精度、低表面粗糙度、高使用寿命的钢模具。
The steel dies with high dimensional accuracy, low surface roughness and long service life have been quickly produced by using prototyping resin molds as patterns of ceramic investment casting.
特大型不锈钢阀体熔模精密铸造与砂型铸造比较，最大的问题是铸件的凝固控制。
Compared with large stainless steel valve body in sand casting, it was difficult to control solidification process in investment casting, which results in some defects in the valve body.
最终得到移动磁场下铸造ZL 102薄壁件的最佳工艺条件为：不锈钢底模，电压为220v - 235v。
Under traveling magnetic field, casting ZL102 aluminum alloy thin-section castings' best process is: using stainless steel as bottom mold, voltage is between 220v-235v.
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