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公开(公告)号:US5595720A
公开(公告)日:1997-01-21
申请号:US437921
申请日:1995-05-09
CPC分类号: D01F9/145
摘要: A method for producing carbon fiber comprising applying an infusibilization to a pitch fiber yarn made using mesophase pitch as a starting material in a state with substantially no tension applied to the yarn and in an oxidizing gas atmosphere including nitrogen dioxide and oxygen, then sintering in an inert gas atmosphere of 350.degree. C. to less than 400.degree. C. for 10 minutes or more for primary carbonization, then applying secondary carbonization at a temperature of 800.degree. to 1300.degree. C. for 5 to 120 seconds, while feeding out the yarn in the linear form and continuously transporting the same.
摘要翻译: 一种碳纤维的制造方法,其特征在于,在使用中间相沥青制造的沥青纤维纱线作为起始原料,在基本上不施加张力的状态下,在包含二氧化氮和氧气的氧化性气体气氛中,对不熔化物进行烧成, 惰性气体气氛为350℃至小于400℃,进行10分钟以上的初步碳化,然后在800〜1300℃的温度下进行5〜120秒的二次碳化,同时送出纱线 以线性形式并连续输送。