论文部分内容阅读
液态模锻铝活塞是目前工业发达国家竞相采用的先进工艺,它兼有铸造和锻造的特点。液态模锻铝活塞毛坯是在高压下成型,有着良好的组织密度和较高的强度及较低的热膨胀系数。采用液态模锻工艺是减轻活塞重量,增强可靠性的良好途径。该活塞裙部采用先进的桶面变椭圆结构,这在液态模锻工艺的基础上又进一步提高了活塞的磨合性、耐磨性和经济性。目前我国一些配件生产厂家已经大批量生产
Liquid die forging aluminum piston is currently developed countries competing to adopt advanced technology, which combines casting and forging characteristics. Liquid die forging aluminum piston blank is formed under high pressure, has a good tissue density and high strength and low coefficient of thermal expansion. The use of liquid forging process is to reduce the weight of the piston and enhance the reliability of a good way. The skirt of the piston adopts an advanced barrel surface variable oval structure, which further improves the running-in, wear-resistance and economy of the piston on the basis of the liquid forging process. At present, some parts manufacturers in China have been mass-produced