摘要
针对热压烧结金刚石工具用石墨模具，采用浸渍复合磷酸盐法进行抗氧化处理，通过氧化腐蚀性能的研究，分析讨论了石墨模具抗氧化处理前后的抗氧化性能等。结果表明：抗氧化处理后的石墨模具，基本保持石墨的电学特性，其抗氧化性和抗压强度有明显提高，700℃下空气中氧化失重率为6％左右的氧化时间从5h提高到80h以上。
A phosphate-impregnating method was applied as an anti-oxidation treatment towards the graphite mould for sintering gold tools. Based on the research into the oxidation corrosion, the anti-oxidation performances of the graphite mould before and after treatment were discussed. The results show that the graphite mould basically keeps its electrical characteristics and obviously improves its anti-oxidation and compressive strength after anti-oxidation, whose oxidation time at the oxidation weight loss rate of about 6 percent at 700℃ in the air increases from 5 hours to above 80 hours.
出处
《炭素》
2012年第4期26-28,25,共4页
Carbon
关键词
石墨模具
抗氧化
金刚石工具
氧化腐蚀
浸渍处理
磷酸盐
graphite mould
anti-oxidation
diamond tools
oxidation corrosion
impregnating treatment
phosphate
