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何谓钢结构焊接应力,何谓焊接变形?

问答题
2022-03-03 15:33
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正确答案
钢结构在焊接过程中,由于构件局部受到高温作用,焊缝冷却时收缩又不一致,从而在构件内部引起内应力和初变形,这种内应力称为焊接应力,初变形称为焊接变形。

试题解析

感兴趣题目
焊接产生的()会造成焊接变形,因此焊接过程中应减少焊接应力与焊接变形。
()shall be liable for loss of and damage to the Vessel and/or goods arising or resulting from inaccuracies in stating the description,quantity,weight,measurement or contents.
Every deliberate act of wrongdoing by the master or any of the crew against the ship or cargo,without the authorization or privity of the Shipowner or his agent,is().
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The () is used for hauling in or letting out the wires or ropes.
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Effects which are dutiable or subject to prohibitions or restrictions should be declared in ().
逻辑运算符(AND、NOT、OR)的运算顺序是AND→OR→NOT。
逻辑运算符(AND、NOT、OR)的运算顺序是AND→OR→NOT。
焊接变形的控制主要目的是保证构件或结构要求的尺寸,但有时焊接变形控制的同时会使焊接应力和裂纹倾向随之增大,()即是如此。
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焊接残余应力和焊接残余变形是如何产生的?焊接残余应力和焊接残余变形对结构性能有何影响?减少焊接残余应力和焊接残余变形的方法有哪些?
通常所说的焊接应力及焊接变形是指焊接残余应力和焊接残余变形。()
()any case or suspected case of quarantinable disease,or any case of eruptive disease or any death be discovered,the local quarantine officer must be notified immediately.
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通常说的焊接应力及焊接变形是指焊接()和焊接残余变形。
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通常说的焊接应力及焊接变形是指焊接()和焊接()。
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翻译:With Average or With Particular Average(WA or WPA)()
何谓钢结构焊接应力,何谓焊接变形?
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