| YI Hui-zhi,DENG Fei-yue,ZHANG Zhong-ting.Study on the Chemical Milling Process of 2197 Al-Li Alloy[J],39(4):73-76 |
| Study on the Chemical Milling Process of 2197 Al-Li Alloy |
| Received:March 11, 2010 Revised:August 10, 2010 |
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| DOI： |
| KeyWord:chemical milling 2197 Al-Li alloy surface roughness |
| Author | Institution |
| YI Hui-zhi |
School of Chemistry and Chemical Engineering, Central South University, Changsha , China |
| DENG Fei-yue |
School of Chemistry and Chemical Engineering, Central South University, Changsha , China |
| ZHANG Zhong-ting |
School of Chemistry and Chemical Engineering, Central South University, Changsha , China |
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| Abstract: |
| Through comparing the experimental application of the base lotion and chemical milling solution, the pre-treatment process was screened,and then the optimal formula of milling liquid was determined by orthogonal method with the surface roughness as the evaluation parameters,also the effect of chemical milling temperature and the thickness of milling on the chemical milling was studied. The chemical milling process was determined: alkaline lotion with NaOH solution(NaOH concentration of 10～ 20 g/ L)is good;in chemical milling solution the optimum ratio of each component is NaOH 200 g/ L, Na2S 35 g/ L, Al3+ 45 g/ L, triethanolamine 50 g/ L; The chemical milling temperature of 85℃ is suitable, chemical milling thickness should be less than 5 mm. |
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