地坑造型

用地坑造型生产6000×3000mm特大型铸铁检验平板的铸造方法、主要工艺参数和浇注系统的设计原则，生产出了优质检验平板。

This paper introduces the foundry technique employed for producing 6000 × 3000mm extra large size iron inspection plates casting in pit moulding process . It describes the chief technical parameters taken in the design , and the principles of gating system and the venting of the mould .

用地坑造型生产特大型检验平板铸造技术

Foundry Technology for Producing 6000 × 3000mm Extra Large Size Inspection Plate Casting by Pit Moulding Process

交变载荷下点蚀坑的统计分布及演化地坑造型的安全防范

Evolution of statistical distribution of pit geometric parameters under fatigue loading

离心力铸造异形铸件时工艺因素对质量的影响采用地坑拼箱造型生产大型异形铸件司南仪

The Influence of Technological Factors on the Quality of Special-Shaped Centrifugal Castings The Large Sized Compass Casting Produced by Pit Moulding and Composed Flask Process Together Box