卡套式接頭具有較大的強(qiáng)度，但是如果在高溫的環(huán)境中使用，那么卡套式接頭就會(huì)出現(xiàn)脆化現(xiàn)象，為了避免這個(gè)現(xiàn)象的發(fā)生，我們?cè)谑褂每ㄌ资浇宇^時(shí)需要盡量避免在高溫環(huán)境中使用。

    卡套式接頭指兩個(gè)或兩個(gè)以上零件要用焊接組合的接點(diǎn)。或指兩個(gè)或兩個(gè)以上零件用卡套方法連接的接頭，包括焊縫、熔合區(qū)和熱影響區(qū)。在卡套發(fā)生熔化凝固的區(qū)域稱為焊縫，它由熔化的母材和填充金屬組成。

卡套式接頭

    卡套式接頭的脆化現(xiàn)象，卡套式接頭的強(qiáng)度并不低，但是有時(shí)在使用不到幾個(gè)月就會(huì)延焊縫或近縫區(qū)發(fā)生脆斷，這種現(xiàn)象在極端溫度環(huán)境下更易出現(xiàn)。由于不銹鋼的焊縫在高溫加熱一段時(shí)間后，出現(xiàn)沖擊韌性下降的現(xiàn)象稱為脆化。

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The sleeve joint has great strength, but if it is used in the high-temperature environment, the sleeve joint will appear embrittlement. In order to avoid this phenomenon, we need to avoid using the sleeve joint in the high-temperature environment as much as possible.

A bayonet joint is a contact where two or more parts are to be welded together. Or of two or more parts connected by a bayonet, including welds, fusion zones and heat affected zones. The area where the sleeve is melted and solidified is called the weld, which consists of the molten base material and the filler metal.

Bayonet joint

The embrittlement of the sleeve joint is not low in strength, but sometimes it will occur in the weld or near seam area within a few months after use, which is more likely to occur in extreme temperature environment. Because the weld of stainless steel in high temperature heating for a period of time, the impact toughness decline phenomenon called embrittlement.

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