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0.前言近一时期,公司承揽的中国石化股份有限公司某分公司一台反应氢/反应产物换热器,其壳体部分材质为SA387Gr11Cl2N钢板,最大厚度为50㎜,直径为2000㎜,设计温度为430℃。SA387Gr11Cl2N为美国ASME的牌号,与SA387Gr11Cl2N钢板的力学性能及化学成分相当的国产钢板牌号为14Cr1MoR。本次试验主要针对SA387Gr11Cl2N的SMAW焊接进行工艺评定,以便制定出合理的焊接工艺规程。1.焊接材料的选择根据JB4708—2000的规定,焊接工艺评定所用试板厚度选定为38㎜,长宽为700*150,材质为SA387Gr11Cl2N。对其进行化学成分分析。对钢板进行力学性能检验。检验结果符合标准及技术协议要求。根据SA387Gr11Cl2N化学成分和标准规定及产品技术协议的要
0. Introduction In recent period, a company of China Petrochemical Co., Ltd. contracted a reaction hydrogen / reaction product heat exchanger, the shell part of the material is SA387Gr11Cl2N steel plate, the maximum thickness of 50 mm, a diameter of 2000 mm, the design The temperature is 430 ° C. SA387Gr11Cl2N for the United States ASME brand, and SA387Gr11Cl2N steel mechanical properties and chemical composition of the domestic steel grade 14Cr1MoR. This test mainly for SA387Gr11Cl2N SMAW welding process evaluation, in order to develop a reasonable welding process. 1. The choice of welding materials According to the provisions of JB4708-2000, the welding process used to assess the thickness of the selected test plate 38 mm, length and width of 700 * 150, made of SA387Gr11Cl2N. Its chemical composition analysis. The mechanical properties of steel plate test. The test results meet the standards and technical agreement requirements. According to SA387Gr11Cl2N chemical composition and standard requirements and product technical agreement