论文部分内容阅读
前言汽车大梁钢板是载重汽车中承受负荷最大的部件之一。不仅承受载物和车体的全部重量,更主要的是在汽车运行过程中,承受着弯曲、冲击、震动、疲劳的综合动载荷;加上汽车大梁在冲压制造时,受力比较复杂,在钢板个别部位必须承受张力。因此,要求钢板不仅具有一定的机械性能,还要有良好的工艺性能和显微组织,表面必需具有极良好的光洁度,并且必须是厚度公差范围较窄的热轧中板。解放牌载重汽车原设计采用30Ti钢,按ТУС11—46所定技术条件进行生产。1957年试制成了以16Mn低合
Preface Automobile girder steel is one of the most heavily loaded parts of a truck. Not only bear the full weight of the load and the body, but also the main dynamic load of bending, shock, vibration and fatigue during the operation of the vehicle. Coupled with the automobile girder in the stamping manufacturing, the force is more complex, Individual parts of the plate must withstand tension. Therefore, the requirements of steel not only have a certain mechanical properties, but also have good process performance and microstructure, the surface must have a very good finish, and must be a narrow range of thickness tolerance of the hot-rolled plate. Jiefang brand truck original design using 30Ti steel, according to ТУС11-46 set of technical conditions for production. Trial made in 1957 to 16Mn low