空气锤锤砧锤模联接方式的改进

MODIFICATION OF CONNECTION BETWEEN ANVIL AND DIE OF PNEUMATIC HAMMER

简介了空气锤锤砧锤模联接方式改进前后的使用状况。采用法兰联接，螺栓、弹簧预紧的方式，空气锤的维修费用大大降低，停机率下降，取得了较好的经济效益。该方法适用于冷拔钢管厂同类设备改进时参考。

The brief introduction involves the operational performances of the pneumatic hammer before and after modification of the anvil-die connection. Thanks to the improved connecting technique which involves the employment of flange connection, bolting and spring pre-tighting,both maintenence cost and downtime of the pneumatic hammer have been considerably reduced, resulting in better economic benefit. The said technique is worth taking into consideration in case of modification of similar equipment in cold-drawn steel pipe mills.