1. This material is made of special seamless steel pipe. The tensile strength of the axle housing reaches 680, the buckling strength reaches 550, and the elongation reaches more than 15%.
2. The process is cold expansion molding, and the shaft tube is specially reduced in diameter.
3. Pipa hole body and shaft pipes at both ends are structurally integrated, with different wall thicknesses.
4. Due to special materials, advanced technology and reasonable structure, the mechanical properties of the axle housing are greatly improved. Its rigidity is better than stamping axle housing, and its plasticity is better than casting axle housing. There is no weld between the car body and the axle tube, and the wall thickness is different.
It not only has the advantages of stamping and welding axle housing, but also has the advantages of casting process, which fully embodies the safety, reliability and lightweight of axle housing (the weight is about 15% lighter than stamping and welding axle housing). It is more suitable for passenger cars, road vehicles and some engineering vehicles. The axle housing has passed the appraisal of national scientific and technological achievements, and the conclusion is: fill the domestic gap and reach the domestic leading level. There are 5 invention patents and 0 utility model patents 10. The products are mainly supported by FAW, Hande, Beiben, An Kai, Valin, Fangsheng, Yutong, Sany Heavy Industry and Korea Uni-President Industry. Wanshou machinery friendship clause