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焊接冷裂纹是焊接中经常出现的缺陷,危害严重。天津大学为此研制了国产低合金高强钢冷裂纹专家系统,可以方便地查阅国内冷裂纹插销试验的大量数据,判断焊接结构的冷裂敏感性,检验焊接工艺的合理性和制定合理的焊接工艺。专家系统是从近十年来我国不少单位的冷裂试验,尤其是插销试验所积累的成千数据中,选用了130组较完整的数据,包括16Mn,16Mn(Cu),15MnV、15MnVR、15MnVN、Cu-Cr-Ni系耐候钢
Welding cold cracking is a defect that often occurs in welding. It is a serious hazard. Tianjin University has developed a domestic cold cracking expert system for low-alloy high-strength steel, which can easily consult the domestic cold cracking test data, determine the cold cracking sensitivity of the welded structure, verify the rationality of the welding process and develop a reasonable welding process. . Expert system is from the cold cracking test of many units in China in the past ten years, especially the thousands of data accumulated in the latch test, 130 sets of relatively complete data were used, including 16Mn, 16Mn (Cu), 15MnV, 15MnVR, 15MnVN , Cu-Cr-Ni weathering steel