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武威架子车厂生产的“350”型架子车挡、碗,采用普通低碳钢制成。根据挡、碗的工作环境、服役条件,要求它应具有一定的强度、硬度、抗冲击韧性和表面较高的耐磨性。热处理采用渗碳——淬火——发黑(代替低温回火),以使满足机械性能要求。热处理效果如何,即成为挡、碗质量及使用寿命的关键。使用中,常因表面不耐磨出现沟槽,强度不够而变形,脆裂等现象,使作为架子车活动部位的主要零件——挡、碗报废。而架子车目前主要用于农业生产、交通运输,在我省架子车又是农业学大寨,大搞
Wuwei shelves depot production of “350” shelves shelves, bowls, made of ordinary mild steel. According to the block, the working environment of the bowl, service conditions, it should have a certain degree of strength, hardness, impact toughness and surface wear resistance. Carburizing - Quenching - Blackening (instead of low temperature tempering) is used for heat treatment to meet the mechanical requirements. The effect of heat treatment, which has become the block, the key to the quality and life of the bowl. In use, often due to the surface of the groove does not wear, strength is not enough deformation, such as the phenomenon of brittle fracture, so that the main parts of the activities of the shelf car - block, bowl scrapped. The shelves car is currently mainly used for agricultural production, transportation, shelves in our province is agricultural science Dazhai, engage in