| CUI Yong-xin,SAI Yin,YANG Ming-jia,LIU Ying-zhi.Study on Accuracy Control of Zn-Cr Coatings[J],43(3):111-114,128 |
| Study on Accuracy Control of Zn-Cr Coatings |
| Received:January 06, 2014 Revised:March 28, 2014 |
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| DOI： |
| KeyWord:Zn-Cr coatings thickness accuracy control coating process |
| Author | Institution |
| CUI Yong-xin |
Beijing Xinghang Mechanical-electrical Equipment Co. , Ltd, Beijing , China |
| SAI Yin |
Delegate Room of Air Force Region in West Area of Beijing, Beijing , China |
| YANG Ming-jia |
Beijing Xinghang Mechanical-electrical Equipment Co. , Ltd, Beijing , China |
| LIU Ying-zhi |
Beijing Xinghang Mechanical-electrical Equipment Co. , Ltd, Beijing , China |
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| Abstract: |
| Objective To improve the thickness uniformity of Zn-Cr coatings and to accurately control the machine element, the technological parameters of pretreatment and Zn-Cr coating process were studied. Methods The technological parameters of pretreatment and Zn-Cr coating process were optimized by using the uniform design method. The quality of Zn-Cr coatings could be improved through the control of shot blasting and coating parameters. Results Through the optimization experiment and the calculation using the uniform design software, we achieved an isogram of the coating at different viscosity and spin-dry speed. Based on the isogram, we improved the plating parameters. The surface roughness Ra reached 1. 6 μm, and the thickness accuracy of coatings reached 依1. 5 μm. Conclusion By choosing the suitable coating process according to the isogram, we could efficiently control the adhesive amount of the Zn-Cr coatings and then control the quality of the Zn-Cr coatings. |
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