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| PLC在YA32-315四柱式万能液压机改造中的应用 |
| Application of PLC in Renovation of Four-pillars Universal Hydraulic Press |
| Received:August 29, 2011 Revised:January 10, 2012 |
| DOI： |
| 中文关键词: PLC 液压机 压边力 |
| 英文关键词: PLC hydraulic press blank holder force |
| 基金项目: |
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| 中文摘要: |
| 对四柱式万能液压机进行了PLC改造，通过开关量控制方式实现液压机的基本动作，将控制定压边力的普通溢流阀改为比例溢流阀，并结合模拟量控制方式实现了变压边力，满足了变压边力的工艺要求。 |
| 英文摘要: |
| Universal hydraulic press with four pillars has been renovated by PLC to realize the basic action with the instruction of switch value. The overflow valve to control the constant blank holder force is changed to the proportion overflow valve. And the analog quantity control is adopted to achieve the variable blank holder force control. By the mode, the technical need of variable blank holder force is satisfied. |
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