摘要
生石油焦一般含有１０％ 左右的挥发份，当研磨成５μｍ 以下的细粉后可以直接进行无粘结剂成型和烧结。在１１００ ℃下烧结制品体积密度容易达到１－５０ｇ／ｃｍ３ ～１－６０ｇ／ｃｍ３ 。但要制备体积密度在１－７５ｇ／ｃｍ３ 以上的高密度炭素材料，必须对传统的工艺制度进行改进并进行严格的指标控制，重点是要提高生坯体积密度，减少炭化失重和使制品进行相对充分的体积收缩。
Generally, green petroleum coke contain about 10wt% of volatiles. They can be formed and sintered without adding any binder. After sintered under 1100℃ ,the bulk density of carbon block can easily reach 1 5 to 1 60g/cm 3 .But when the high density above 1 75 g/cm 3 is required, it is essential to improve the conventional technology and control strictly some indexes specially such as increasing the bulk density of green carbon body, decreasing the mass loss during carbonization and assuring the full volume shrinkage.
出处
《炭素》
1999年第3期15-19,共5页
Carbon
基金
粉末冶金国家重点实验室资助
湖南省自然科学基金
关键词
生石油焦
高密度
炭素材料
工艺
石油焦
Green petroleum coke
High density
Carbon materials
Technology
