摘要 |
A particulate,inorganic water hardenable, material based moulding composition for the production of a mould for metal casting from a pattern, wherein the composition comprises an effective amount of a particulate, water-insoluble lubricant, the lubricant being selected such that it does not evolve deleterious quantities of gases or vapours at the casting temperature of the metal. |
申请人 |
DONCASTERS LIMITED;PEARCE, RICHARD, KENNETH;MOORE, CHRISTOPHER, JAMES;HOLME, DAVID |
发明人 |
PEARCE, RICHARD, KENNETH;MOORE, CHRISTOPHER, JAMES;HOLME, DAVID |