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拐轴是履带车中重要配件。承受弯曲、冲击等多种载荷,对强度和韧性等性能要求很高。以往都用40Cr钢材锻造成型,但锻造拐轴的金属利用率低,工序多,成本高,设备投资大。国内外也曾试用电渣分段多次铸焊法研制曲拐轴,但质量与效率等问题尚待改善。为解决生产急需和开创复杂异型件成型新途径,北京钢铁学院与遵化农机修造厂合作,研究成功电渣熔铸一次成型拐轴新工艺。四年中用新工艺生产了拐轴9061根,销
Cog axis is an important part of the crawler. To withstand bending, impact and other loads, high strength and toughness performance requirements. In the past with 40Cr steel forging molding, but forging the cog axis of low metal utilization, processes, high cost, equipment investment. At home and abroad have also tried electroslag segmented casting multiple times to develop crankshaft, but the quality and efficiency issues remain to be improved. In order to solve the urgent need of production and create a new way of forming complex shaped parts, Beijing Iron and Steel Institute and Zunhua Agricultural Machinery repair shop to study the success of a new process of electroslag casting a cog axis. Four years with the new technology produced 9061 cog axis, pin