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| A Method of Increasing Airtight Function of Hard Chromium Plating |
| Received:May 07, 2012 Revised:August 15, 2012 |
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| DOI： |
| KeyWord:airtight function hard chromium plating sealing-treatment |
| Author | Institution |
| TANG Zhi-hui |
Beijing Institute of Aeronautical Materials， Beijing ， China |
| WANG Chang-liang |
Beijing Institute of Aeronautical Materials， Beijing ， China |
| WANG Li-qiang |
Chengdu Aircraft Industrial（Group）Co. Ltd.， Chengdu ， China |
| DAI Shu-cheng |
Chengdu Aircraft Industrial（Group）Co. Ltd.， Chengdu ， China |
| YUE Wen-hua |
Beijing Institute of Aeronautical Materials， Beijing ， China |
| LU Feng |
Beijing Institute of Aeronautical Materials， Beijing ， China |
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| Abstract: |
| The causes of poor airtight performance of hard chromium plaiting were analyzed. A sealing-treatment was employed in the post-treatment of hard chromium plaiting to improve the airtight function of the coating system. The results showed that the hard chromium plaiting passes 20 MPa/30 min airtight function testing with no leakage of gas after the post-treatment by 518 sealing reagent; the sealing reagent penetrates as deep as 20~30 μm and co-operates well with hydraulic fluid. |
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