| 摘要 |
1340287 Refractory ramming mixes DRESSER INDUSTRIES Inc 6 June 1972 [9 July 1971] 26354/72 Heading C1J A non-aqueous refractory ramming mix comprises a particulate basic refractory material and from 2 to 12 wt. per cent of a lubricating oil and a metallic stearate. The refractory material may be dead-burnt magnesite or dead-burnt dolomite and the metallic stearate magnesium, aluminium, calcium, sodium or zinc stearate. Burnt lime or chrome ore may be added. In the example mixes comprising (i) magnesite, non- detergent motor oil and magnesium stearate and (ii) dolomite, magnesite, carbon black, non- detergent motor oil and magnesium stearate are described. |
