It requires high level for manufacturing technology and welding deformation control because the structure of cross-section is special.
十字形断面柱的结构特殊，对制作工艺及焊接变形控制要求较高。
In the manufacturing of gate, we use many welding deformation control techniques and adjust the welding sequences to guarantee the final welding quality of gate.
通过采用预留收缩余量和反变形量，钢性加固，合理选择焊接方法，调整焊接顺序等措施保障了产品焊接最终质量。
This paper describes the methods of controlling the frame quality in terms of process design, mould design, control of deformation and defects from welding surface treatment, etc.
从工艺设计、胎具设计、控制焊接变形和缺陷、表面处理等各环节实行严格的品质控制，多年来生产出多种型号的车架全部为合格品。
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