CAJ | 학술논문

分析了汽车发动机曲轴主轴承盖473QB的结构和性能特点，采用粉末冶金材料取代铸铁或球墨铸铁，降低了生产成本。制定了合理的开发方案，确定了材料配方、生产工艺流程，并设计了模具。通过试制进行产品金相分析，改进了粉末冶金工艺和模具结构，成功研制出了符合要求的可承受复杂载荷的粉末冶金曲轴主轴承盖。
분석료기차발동궤곡축주축승개473QB적결구화성능특점，채용분말야금재료취대주철혹구묵주철，강저료생산성본。제정료합리적개발방안，학정료재료배방、생산공예류정，병설계료모구。통과시제진행산품금상분석，개진료분말야금공예화모구결구，성공연제출료부합요구적가승수복잡재하적분말야금곡축주축승개。
The structure and performance characteristics of the main bearing cover 473QB for automotive engine crankshaft are analyzed. Powder metallurgy is used instead of cast iron or spheroidal graphite cast iron. The production cost is reduced. Rational scheme is made which determines the material composition and process flow, and the mould is designed. By testing and metallographic analysis the powder metallurgy process and mould structure are improved. The powder metallurgy main bearing cover for crankshaft which can bear complex load and meet requirement is developed successfully.