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载货汽车半轴是连接后桥齿轮和驱动车轮的重要零件,由于它的长径比较大,不仅承受较大的扭矩而且承受弯矩和疲劳,所以,对于它的疲劳寿命与静扭强度有较高的要求。国产半轴的寿命,虽在试验条件下,可达到二十万公里以上,但在批量生产条件下,离先进水平仍有一定的距离。佛山市某厂在1977年以后,已采用中频表面淬火工艺,生产CA10B与EQ140半
The semi-axle of a truck is an important part that connects the rear axle gear and the driving wheel. Due to its large aspect ratio, it not only withstands large torque but also bears bending moment and fatigue, so its fatigue life and static torsional strength are Higher requirements. Although the life span of domestic semi-shafts can reach more than 200,000 km under the test conditions, under the conditions of mass production, there is still a certain distance from the advanced level. A factory in Foshan City after 1977, IF quenching process has been used to produce CA10B and EQ140 half