摘要: |
先导式安全阀是航天型号伺服系统的重要元件之一,多年来一直存在调试合格率低问题。经过大量的试验及原因分析,提出了减小阻尼孔的孔径,更改导阀的长度,去除关键部位毛刺等工艺改进措施,有效地提高了先导式安全阀调试合格率,保证了产品顺利交付。 |
关键词: 先导式安全阀;密封性;合格率 |
基金项目: |
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The Technology Research of Enhancing the Assembly Eligibility Ratio for the Pilot-operated Type Pressure Relief Valve |
Zhou Xueling Zhang Jian
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Beijing Research Institute of Precise Mechanical and Electronic Control Equipment, Beijing 100076
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Abstract: |
Pilot-operated type pressure relief valve is one of the most important components in the servo system used in spaceflight. However, it has low eligibility ratio during assembling and testing for long years. It is considered effectively after lots of experiments and analysis to reduce the pore size of the damp orifice, change the length of pilot valve and remove the glitch at some key positions for increasing the qualified rate, which make the handing over of products more favorably. |
Key words: pilot-operated type pressure relief valve;tightness;qualifie |