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Manufacture of phosphorus-containing aluminum alloy for refining grain size of proeutectic si of hypereutectic a -si alloy and its using method

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专利汇可以提供Manufacture of phosphorus-containing aluminum alloy for refining grain size of proeutectic si of hypereutectic a -si alloy and its using method专利检索,专利查询,专利分析的服务。并且PURPOSE: To manufacture the titled superior Al alloy generating no smoke and gas in grain refining by scattering a flux composed of a mixture of molten (NaPO
3 )
6 and Al
2 O
3 over the surface of molten pure Al or a molten Al-Si alloy and keeping them at a constant temp.
CONSTITUTION: (NaPO
3 )
6 and Al
2 O
3 are mixed in a specified ratio and melted by heating to prepare a flux. This flux is spread over the surface of molten pure Al or a molten Al-Si alloy kept at 850W900°C, and they are kept at such a constant temp. for 30W90min. At this state they react with each other at the contact interface, and P in the flux diffuses and penetrates into Al. The molten flux on the molten metal surface is then removed, and the molten metal is cast in a metal mold to obtain an ingot of a P- contg. Al alloy refining the grain size of the proeutectic Si of a hypereutectic Al-Si alloy.
COPYRIGHT: (C)1981,JPO&Japio,下面是Manufacture of phosphorus-containing aluminum alloy for refining grain size of proeutectic si of hypereutectic a -si alloy and its using method专利的具体信息内容。

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