| XIA Cheng-bao,WANG Dong-feng,WANG Ding-jiang,GE Wen-jun,CHEN Ming-hua.Brush Plating for Renovating the Worn Sliding Plate of Airplane Gun[J],37(2):54-55 |
| Brush Plating for Renovating the Worn Sliding Plate of Airplane Gun |
| Received:December 05, 2007 Revised:April 10, 2008 |
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| DOI： |
| KeyWord:Brush plating Fe-Co-Ni alloy coating Wom sliding plate |
| Author | Institution |
| XIA Cheng-bao |
The First Aeronautic Institute of Air Force, Xinyang , China |
| WANG Dong-feng |
The First Aeronautic Institute of Air Force, Xinyang , China |
| WANG Ding-jiang |
The First Aeronautic Institute of Air Force, Xinyang , China |
| GE Wen-jun |
The First Aeronautic Institute of Air Force, Xinyang , China |
| CHEN Ming-hua |
The First Aeronautic Institute of Air Force, Xinyang , China |
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| Abstract: |
| In order to solve the repairing problem of wom sliding plate of airplane gun, the technology of brush plating for the Fe-Co-Ni alloy coating on the surface of high strength steel 18Cr2Ni4WA has been researched. A new repairing technology was proposed based on the failure analysis of worn sliding plate of airplane gun. Using this coating system of brushing Fe-Co-Ni alloy coating, through reducing the electrode potential of cathode , the degree of cathode polarization would be increased, and the speed of forming nucleus was more that the speed of growth of crystal nucleus, so the adhesion between the coating and basis material was increased. When the thickness of repairing coating is up t0 25 μm, the hardness of the coating achieves 700 HV; The adhesive power is better, the coating doen't fall off in the adhesion test; the coating doen't fall off in the bend test; The cupping height of test is 5.Omm; The wear resistance of the repairing coating is 0. 117mg once and approaching to wear resistance of the basis material. Tests have shown that qualified brush electroplating layer for repairing wom sliding plate can be got through this kind of process. |
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