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关于全自动焊机接头的匹配应注意什么?
添加时间:2017-06-28 16:14:06

长期以来,焊接结构的传统设计原则基本上是强度设计。在实际的焊接结构中,焊缝与母材在强度上的配合关系有三种:
For a long time, the traditional design principle of welded structure is strength design. In the actual welding structure, there are three kinds of relationship between weld and base metal strength:
1、焊缝强度等于母材(等强匹配)。
1, the weld strength is equal to the parent material (equal strength matching).
2、焊缝强度超出母材(超强匹配,也叫高强匹配)。
2, weld strength beyond the parent material (super match, also called high strength match).
3、焊缝强度低于母材(低强匹配)。
3, the weld strength is lower than the parent material (low strength matching).
在追求自动化的时代里,焊接成为用途最多的一项技能,而全自动焊机接头的强度就成为一大考验,若焊缝韧性明显降低,则采用低强匹配更为有利。

In the era of the pursuit of automation, welding has become one of the most versatile skills, and the strength of automatic welding joints become a big test, if the weld toughness is significantly reduced, then the use of low strength matching more favorable.

从结构的安全可靠性考虑,一般都要求焊缝强度至少与母材强度相等,即所谓“等强”设计原则。

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Considering the safety and reliability of the structure, the strength of the weld seam is at least equal to the strength of the parent material, which is called the "equal strength" design principle.
但实际生产中,多数是按照熔敷金属强度来选择焊接材料,而熔敷金属强度并非是实际的焊缝强度。
However, in actual production, most of the welding materials are selected according to the strength of the deposited metal, and the strength of the deposited metal is not the actual strength of the weld.
熔敷金属不等同于焊缝金属,特别是低合金高强度钢用焊接材料,其焊缝金属的强度往往比熔敷金属的强度高出许多。
Deposited metal is not equivalent to weld metal, especially low alloy high strength steel welding material, the weld metal strength is often higher than the strength of the deposited metal.
所以,就会出现名义“等强”而实际“超强”的结果。
So, there will be the name of the "strong" and the actual super results.
无论从哪方面来说,焊接头的匹配问题,都应该在具体操作前考虑到,毕竟他关系到工程的正确运行和验收质量问题。
No matter from which side, the matching problem of the welding head, should be considered before the specific operation, after all, he is related to the correct operation of the project and acceptance quality problems.
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