插销法冷裂缝试验中,应用“开裂”准则还是“断裂”准则,所得到的试验结果是有差异的。本文从影响焊接冷裂缝的主要因素之一——扩散氢含量变化时,用这两种试验准则作对比试验,从中了解用两种试验准则时在试验结果上的差别,并探讨其产生原因,以完善用插销法对材料焊接冷裂缝敏感性的评定试验。 In the cold crack test of the bolt method, there are differences between the test results obtained by applying the “cracking” criterion or the “breaking” criterion. This article from the influence of cold cracking one of the main factors - diffusion of hydrogen content changes, the use of these two test criteria for comparison test, from which to understand the difference between the two test criteria in the test results and explore its causes, In order to improve the use of the latch method of cold welding material cracking assessment of the sensitivity test.