Analysis of the strength of Cutting ring tube fittings
A Cutting ring tube fitting to a joint where two or more parts are to be combined by welding. Or refers to a joint where two or more parts are joined by the cutting ring method, including the weld seam, the fusion zone and the heat affected zone. The area where melting and solidification occurs in the cutting ring is called the weld seam, which consists of the molten base material and the filler metal.
The strength of cutting ring type joints is not low, but sometimes in less than a few months of use will be extended weld or near the seam area brittle fracture, this phenomenon is more likely to occur in certain temperature environments. As the stainless steel welds are heated at high temperatures for a period of time, the phenomenon of decreasing impact toughness is called embrittlement.
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