| 摘要 |
PCT No. PCT/EP94/04243 Sec. 371 Date Oct. 18, 1996 Sec. 102(e) Date Oct. 18, 1996 PCT Filed Dec. 20, 1994 PCT Pub. No. WO95/17297 PCT Pub. Date Jun. 29, 1995A process is for producing machine components from highly corrosion and water-resistant cast mineral, especially for the production of monolithically cast pump housings or parts in which the binder is first mixed with the filler in a positive mixer and the finished mixture is poured into a mould and hardened. In order to obtain a dense and non-porous casting which needs no further machining, a heat-curing synthetic resin-curing agent system is used as the binder. The binder and filler are mixed in a heatable, evacuated positive mixer at a temperature of over 20 DEG C. and a pressure of under 80 mbar. The casting take place in a preheated mould as a rising casting. The cast mineral in the mould is first cured at a temperature of over 60 DEG C. and the cured casting is removed from the mould, cleaned, measured and if necessary post machined. Finally the casting is cured in an annealing furnace at over 120 DEG C. |
