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介绍了一种机车增压器主止推轴承双金属加压对焊的新方法及其过程，研究了加压对焊时影响焊接质量的各因素，并确定了合适的工艺参数范围。
A new method and process of bimetallic buttressing buttressing of the main thrust bearing of locomotive supercharger are introduced. The factors that affect the welding quality during buttressing are studied and the suitable technological parameters are determined.