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当前位置: 首页 > 文章 > 壳体类铸铁零件水冷焊试验 农业机械学报 2006,37 (9) 186-189
Position: Home > Articles > Experimental Research on the Water-cooling Welding of Shell-type Cast Iron Parts Transactions of the Chinese Society for Agricultural Machinery 2006,37 (9) 186-189

壳体类铸铁零件水冷焊试验

作  者：
马跃进;李午申;路继纯;郝建军;王保柱
单  位：
河北农业大学图书馆;河北农业大学机电工程学院;河北农业大学理学院;天津大学材料科学与工程学院
关键词：
铸铁;水冷焊;传热;试验
摘  要：
对不同大小铸件的水冷和空冷焊接进行了试验;对铸件内部导热、辐射换热和对流换热进行了传热理论分析。试验结果表明:对于小铸件,水冷效果明显,但产生的白口及淬硬组织多;对于较大铸件,水冷效果不明显,铸件越大,水冷效果越不明显;同一铸铁件在水冷条件下焊接,产生的白口组织及马氏体多,并且铸铁件越大,水冷对组织的影响越小。
译  名：
Experimental Research on the Water-cooling Welding of Shell-type Cast Iron Parts
作  者：
Ma Yuejin 1,2 Li Wushen1 Lu Jichun2 Hao Jianjun2 Wang Baozhu2 (1.Tianjin University 2. Agricultural University of Hebei)
关键词：
Cast iron, Water-cooling welding, Heat transfer, Experiment
摘  要：
The feasibility of cast iron water-cooling welding was investigated. The analog experiment about the different physical volume welded castings cooled in the air and water was conducted. The heat transfer theory on inner thermal conduction, radiation and convection recuperation of the welded castings was analyzed. The theoretical analysis and the test results show that: for the bigger castings, water-cooling has little effect on avoiding weld crack, and for the smaller ones the effect is significant, but there are much of quench tissue, which could lead to cracks. The bigger the casting is, the less the water-cooling influence is. For the same casting, the chill and martensite are more when cooling in water, and the bigger the casting is, the less water-cooling influence on the microstructure.

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