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QG—E级低合金高强铸钢的焊修工艺

REPAIR WELDING PROCEDURE FOR QG-E CLASS HSLA CAST STEEL

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【摘要】 通过最高硬度试验和斜Y形坡口焊接裂纹试验,研究了预热对QG-E级低合金高强铸钢焊接性的影响,并制定了相应的焊修工艺.实际应用表明,该工艺满足了MT—2型大容量缓冲器箱体技术要求.

【Abstract】 Effect of preheating on weldability of QG-E class HSLA caststeel are studied by hardness test and Y-groove crack test. From these process, the repair welding procedure is determined. Welding practice indicates that the procedure used fulfills technical requirements of large volume MT -2 compression bumper.

【关键词】 焊接性预热温度高强铸钢焊接修复
  • 【分类号】TG457.1
  • 【下载频次】47
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