Process of making graphite articles

Details Process of making graphite articles Process of making graphite articles

C - Chemistry, Metallurgy

04

B

C04B 35/622 (2006.01) C01B 31/04 (2006.01) C04B 35/52 (2006.01) C04B 35/532 (2006.01) C04B 35/64 (2006.01) C04B 35/83 (2006.01)

Patent

CA 2494161

A process for preparing graphite articles is presented. In particular, the process includes employing a particulate fraction comprising at least about 35 weight percent coke, coal or combinations thereof having a diameter such that a major fraction of it passes through a 0.25 mm to 25 mm mesh screen. The particulate fraction is mixed with a liquid or solid pitch binder, to form a stock blend; the stock blend is extruded to form a green stock; the green stock is baked to form a carbonized stock; and the carbonized stock is graphitized. The stock blend further comprises one or both of carbon fibers (advantageously added after mixing of the particulate fraction and pitch has begun) and small particle size filler (advantageously added as part of the particulate fraction).

L'invention concerne un procédé de préparation d'articles de graphite. Le procédé consiste en particulier à utiliser une fraction particulaire contenant au moins 35 % environ en poids de coke, de charbon ou de combinaisons de ceux-ci, avec un diamètre permettant à une fraction principale de passer à travers un tamis à maille de 0,25 mm à 25 mm. La fraction particulaire est mélangée à un liant liquide ou solide pour former une pâte mélangée, la pâte mélangée est extrudée pour former une pâte verte, la pâte verte est cuite pour former une pâte carbonisée, et la pâte carbonisée est graphitisée. La pâte mélangée comprend également une ou plusieurs fibres de carbone (avantageusement ajoutées après le début du mélange de la fraction particulaire et du liant) et une charge de petites particules (avantageusement ajoutée comme partie de la fraction particulaire).

Affiliated with

Also associated with

Rating

Process of making graphite articles does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process of making graphite articles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process of making graphite articles will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1699597