By adopting the automatic submerged arc welding process, the main plunger which surface has been worn out on the heavyduty hydraulic press has been successfully repaired.
用埋弧自动焊方法成功地修复了表面磨损的大型压机主柱塞。
2
A hydraulic lifter driven by pneumatic for quick die change in heavy -dutypress was introduced.
介绍了一种用于大型压力机模具快速更换系统的气动液压举升装置。
3
Specific analysis of developing prospect and application of clutch type spiral press with heavyduty (25mn or more) has been done to promote application spread in die forging process.