发明名称 |
CARBON-CONTAINING REFRACTORY, METHOD FOR MANUFACTURE THEREOF, AND PITCH-CONTAINING REFRACTORY RAW MATERIAL |
摘要 |
A pitch-containing refractory raw material (1) comprising pitch particles (2 ) having a softening point of 70 to 200~C and a particle size of 30 .mu.m or smaller carried on the surfaces of refractory raw material particles (3) having a particle size of 50 .mu.m or smaller. In the pitch-containing refractory raw material (1), the pitch particles are hardly aggregated to ge t hard even when the material (1) is stored for a prolonged period of time. Therefore, the material (1) can be used in the form of microparticles on eve ry occasions. When the material (1) is used as a part of the raw materials in t he manufacture of a carbon-containing refractory, the pitch can be dispersed uniformly in the form of microparticles during mixing or kneading. The finished carbon-containing refractory shows a significantly high corrosion resistance. The refractory can be also prevented from increasing in Young~s modulus while retaining a satisfactory strength level, and can show an extremely excellent thermal spolling resistance even when the carbon content is low.
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申请公布号 |
CA2616253(A1) |
申请公布日期 |
2007.01.25 |
申请号 |
CA20062616253 |
申请日期 |
2006.07.21 |
申请人 |
KROSAKIHARIMA CORPORATION |
发明人 |
ASANO, KEISUKE;YOSHITOMI, JYOUKI;SURUGA, TOSHIHIRO;HOKII, TOSHIYUKI;FUCHIMOTO, HIROYUKI |
分类号 |
C04B35/66;C04B35/628 |
主分类号 |
C04B35/66 |
代理机构 |
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地址 |
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