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Ability of the CuSn10 and CuSn5Zn5Pb5 brasses fulfillment of plaster mould cavity during underpressure casting

Pawlak M.

Archives of Foundry Engineering

2010

Vol. 10, iss. 4

163--168

Results of research on ability of a plaster mould cavity to be filled up on casting with alloy CuSn10 and CuSn5Zn5Pb5 are presented in this paper. The cylindrical plaster mould ø110x290 was casting using underpressure in the Vacuum Pressure Casting Machine VC500D of Indutherm. The size of mould cavity was ø15x200 mm and gauge: 2,0; 1,0; 0,8 and 0,6 mm, the temperature of pouring alloy was 1120, 1140, 1160, 1180 and 1200°C, temperature of plaster mould in the casting moment was 400, 500 and 600°C. The effectiveness of a mould cavity to be filled up on the difference distance from the centre of the mould was assesmented too used to mould cavity 10x200 mm and gauge: 2,0; 1,0; 0,8 and 0,6 mm. On the base of the results of the investigation its possible to reach a conclusion, that the best temperature of casting and temperature of the plaster mould tf=500÷600°C. The distance of mould cavity from the mould centre doesn’t have a practical meaning for its ability to be filled up.