准/规范中文名: 钢锻件.自由锻造的带孔圆盘的加工余量及允许偏差 标准/规范英文名: Steel Forgings; Machining Allowances and Permissible Variations for Open-die Forged Pierced Di
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裂纹是钢锻件锻压加工中常见的主要缺陷。
Crack is the main flaw happening in steel forging deformation.
本文简要介绍了压力容器用碳素钢和低合金钢锻件标准。
The paper briefly introduces the carbon and low-alloy steel forgings standard for pressure vessels.
本文通过大量试验和机理的研究，高速钢锻件经过反复镦拔。 只能降低炭化物偏析度1～1.5级。
Adoption of speeded changing could reduce the degree of carbide segregation more than 3 grades whereas repeated upsetting and drawing-out could only reduce 1-1.5 grades.
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