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1·The welding procedure of main pressure parts , its bulk heat treatment and checking point are detailed.

详细介绍了主要受压件的焊接工艺、整体消除焊接应力热处理技术以及关键的检验控制点。

2·This paper mainly presents that constructional mid-carbon alloy steel, after bulk moulding deformation, heat treatment and cold surface deformation can raise fatigue strength of materials effectively.

本文主要介绍中碳合金结构钢经整体塑性变形、热处理后再进行表面冷变形工艺是提高材料疲劳强度的有效途径。