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接热模拟技术在工程技术中的应用是很广泛的，特别是近甘年来，世界各国对大型焊接构件的组织热模拟技术研究十分重视并迅速发展，主要在以下几个方面升展了应用研究［1〕（1）热影响区组织的模拟；（2）热塑性试验；（3）相变行为的研究；门）焊接裂纹试验；（5）焊接热应变模
The application of heat transfer simulation technology in engineering technology is very extensive. Especially in recent years, many countries in the world attach great importance to and rapidly develop the research on the tissue heat simulation technology of large welding components. The application research is mainly promoted in the following aspects [1] (1) Simulation of heat-affected zone structure; (2) Thermoplastic test; (3) Study of phase transition behavior; door crack test; (5)