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| Study and Application of Multi-functional Coating Technology on Surface of Complex Housing Part |
| Received:July 12, 2023 Revised:September 13, 2023 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/issn.1672-9242.2023.11.004 |
| KeyWord:complex structure housing part synergistic coating wear resistance ablation corrosion |
| Author | Institution |
| CHEN Duan-jie |
Chongqing Changan Wangjiang Industry Group Co., Ltd., Chongqing , China |
| GUO Xing-ying |
Chongqing Changan Wangjiang Industry Group Co., Ltd., Chongqing , China |
| LI Hao |
Chongqing Changan Wangjiang Industry Group Co., Ltd., Chongqing , China |
| WANG Xiao-bian |
Chongqing Changan Wangjiang Industry Group Co., Ltd., Chongqing , China |
| QIAN Jian-cai |
Southwest Institute of Technology and Engineering, Chongqing , China;Weathering Test and Research Center of Science Technology and Industry for National Defense, Chongqing , China |
| XU Bin |
Southwest Institute of Technology and Engineering, Chongqing , China;Weathering Test and Research Center of Science Technology and Industry for National Defense, Chongqing , China |
| ZOU Hong-qing |
Southwest Institute of Technology and Engineering, Chongqing , China;Weathering Test and Research Center of Science Technology and Industry for National Defense, Chongqing , China |
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| Abstract: |
| The work aims to tackle challenging requirements of complex structure such as a housing part, including wear resistance, abrasion reduction, anti-ablation, and corrosion resistance against persistent stain. Process and engineering application of the synergistic coating were conducted. Properties of the coating were characterized with SEM/EDS, thickness test, hardness test, adhesion test, neutral salt spray test and ball-disc wear test. The coating exhibited evenly distributed thickness, outstanding adhesion with the substrate after 5 thermal shock cycles at 300~500 ℃. Its hardness was as high as 800HV1.0, which was similar to that of the chromium plating. It had good wear resistance. There was no obvious scratch after 6 000 time wear tests. It had good corrosion resistance with a level 8 rating after 1 200 h of neutral salt spray test. Through the study and analysis on the effect of coating preparation technology on the properties of high-frequency quenching parts, the affecting law of coating preparation on high-frequency quenching parts was made clear. Obstacles encountered in manufacturing the coating on the housing part, such as “defective” and “gas-pocketed” areas were resolved. For the housing part, synergistic coating provides a performance that well satisfies the requirement, which is verified by extended product test. |
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