再制造
超临界流体
基质(化学分析)
材料科学
丁醇
极限抗拉强度
复合材料
工艺工程
化学
机械工程
工程类
有机化学
乙醇
作者
Huanbo Cheng,Lijun Guo,W. Liu,Zhengchun Qian,Yong Feng
标识
DOI:10.1177/09544054221111883
摘要
This paper aims to solve the problem of incomplete cleaning for blind hole remanufacturing blanks and damaging the matrix material in the cleaning process, a novel cleaning method by supercritical n-butanol is proposed. The feasibility of cleaning blind hole remanufacturing blanks is verified, and the mechanism of supercritical n-butanol cleaning is analyzed. The surface cleanliness of matrix structure, the properties change of matrix material and the environmental impact of the cleaning process are explored. The results indicated that there were no contaminants on the surface of cleaned matrix structure under the temperature 300°C, pressure 5.5 MPa, and cleaning time 10 min. Hardness, yield strength and tensile strength of matrix material after cleaning could increase by approximately 14%, 8%, and 5%, respectively. Compared with subcritical water, the oxidation degree of matrix structure cleaned by supercritical n-butanol was lower. Compared with high-temperature cleaning, seven environmental indexes of supercritical n-butanol cleaning process decreased significantly. Supercritical n-butanol cleaning is an ideal choice for blind hole remanufacturing blanks.
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