公开(公告)号：US4351056A

公开(公告)日：1982-09-21

申请号：US219888

申请日：1980-12-24

申请人： Oliver A. Kiikka ,  Donald R. Day

发明人： Oliver A. Kiikka ,  Donald R. Day

IPC分类号： H05B7/085

CPC分类号： H05B7/085

摘要： This invention is directed toward an improved carbon electrode having a coefficient of thermal expansion of less than 3.5.times.10.sup.-7. Composition of the electrode includes needle coke in an amount of from about 60 to 90 weight percent and a quinoline soluble binder pitch in an amount of from about 10 to 40 weight percent, having a ring and ball softening point of from about 94.degree. to 150.degree. C. consisting of a highly aromatic condensation product of a distilled cycle oil extract with an extractant selected from the group consisting of furfural, phenol, B,B'-dichloro diethyl ether, nitrobenzene and sulfur dioxide.

摘要翻译： 本发明涉及具有小于3.5×10 -7的热膨胀系数的改进的碳电极。 电极的组成包括约60至90重量％的针状焦炭和约10至40重量％的喹啉可溶性粘合剂沥青，其环球软化点为约94至150 由蒸馏循环油提取物与选自糠醛，苯酚，B，B'-二氯二乙醚，硝基苯和二氧化硫的萃取剂的高度芳族缩合产物组成。