随着工厂生产品种的增加,锻造所需不同规格棒材的种类相应增多。因此现有规格的棒材远远不能满足生产的需要。如58年我车间所用棒材有80%不符合工艺要求,必须拔小。在58年占用了两台自由锻锤进行拔料,不但劳动强度大,生产效率极低,而且质量也不高,同一根棒料的直径大小相差很多,特别是在卧式锻造机上 With the increase of the variety of the factory, the varieties of bars of different specifications for forging increase correspondingly. Therefore, the existing specifications of the bar can not meet the production needs. If 58 years I used the bar 80% of the workshop does not meet the technical requirements, we must pull small. In 58 years took up two free forging hammer for pulling material, not only labor-intensive, low productivity, but also not high quality, the same bar a lot of different diameter, especially in the horizontal forging machine