service life of die

Introduced the failure types and some measures for extending service life of die casting die.

介绍压铸模的失效类型,提出一些提高压铸模使用寿命的措施.

The height of swing arm is regulated by the handwheel at the top of the machine and the cutting stroke is regulated by the timer so as to easily obtain optimal cutting position to improve work efficiency and prolong the service life of die cutter and padding plate.

摆臂的位置高低由机器上端的手轮调节，冲裁行程由时间计时器调整，这样可以轻易获得最佳裁切位置，提高了工作效率，延长了刀模和垫板的使用寿命。

Basing on Archard wear model, the rule of die wear is studied by simulation, and the relation between wearing depth and the times of die service is found by means of unitary linearly regression, then the service life of die is previewed.

基于Archard磨损模型，对直齿轮温挤压模具的磨损规律进行分析，并利用一元线性回归法，找出模具表面磨损深度与服役次数之间的关系，以磨损值为判据，预测模具的使用寿命。

The test results show that the zinc coat loss can be reduced as pass draughts increase by raising work cone angle rationally and reducing the bearing length, but which has not obvious effect on the mechanical properties of finished steel wire and the service life of die.

试验结果表明部分压缩率增大时，合理增大工作锥角度、减少定径带长度，可减少锌层质量损失，而对成品钢丝的力学性能和模子寿命影响不明显。

Study on Test of Improving the Service Life of Thread Rolling Die by Vacuum Heat-treatment

真空热处理提高滚丝轮寿命试验研究

The design of ring die is based on the experience, which use good quality materials and the large size to ensure the strength and service life of the ring die.

目前对环模的设计都是在经验的基础上，以优质材料和大结构尺寸保证环模的强度及其使用寿命。

The Influence of Heat Treatment Process on the Service Life of Voussoir Die

热处理工艺对楔块模具使用寿命的影响