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.
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。
Based on the digital image processing technique, a method for automatically measuring the three-dimensional parameters of casting surface roughness is put forward.
提出了一种用计算机对铸造表面粗糙度进行数字图像处理和三维参数自动检测的方法。
The defects of casting technology and the impurities in copper alloy material cause roughness of faucet surface with large amounts of sand holes.
铸造技术不完善、铜合金原料中的杂质致使水龙头零件表面疏松，并有大量砂眼。
All of the casting dimension precision, surface roughness and material control have reached national standard.
铸件尺寸精度，表面精糙度及材质控制均达到国家标准要求。
All of the casting dimension precision, surface roughness and material control have reached national standard.
铸件尺寸精度，表面精糙度及材质控制均达到国家标准要求。
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