A 2.6MN four claws crabs made of 25Cr2Ni4MoV has been designed.Based on the calculation of mechanics of materials,the max.sectional combined stress of the crabs is 2563 Mpa,the No.4 strength equivalent stress calculated with finite element is 258.3 Mpa,which are all less than the designed allowable stress.In this case it is shown that the designed four claws crabs is satisfied with the strength requirement.

This article has described the design process for upgrading the rotating Table.of 125MN hydraulic press from the capacity of 120t to 300t.

详细介绍了用扩冲法对液压胀形出现凹形的护环进行修复的方法.实践证明,扩冲法修复护环简单、经济、实用.

齿轮检查仪主要用于高精度的齿轮检测,目前它能检测齿轮误差的5项,所提供的数据具有可靠性.这给我厂的产品尤其是合作产品提供了必要检测手段.

提供了一种用光学准直法和精密机床转台联合进行孔轴线之间的夹角公差要求较高的大尺寸零件的加工、检测方法,这种原理和方法对于具有回转工作台的数控机床普遍适用.