Compositions comprising hexafluorophosphates and metals as struc

Details Compositions comprising hexafluorophosphates and metals as struc Compositions comprising hexafluorophosphates and metals as struc

1989-06-12

1991-11-19

Andrews, Melvyn J.

Specialized metallurgical processes, compositions for use therei

Compositions

Solid treating composition for liquid metal or charge

75309, 75310, C22C 106

Patent

active

050663232

ABSTRACT:
Hexafluorophosphates may be used as structure refiner during solidification of molten aluminium-silicon alloys. The structure refining effect is obtained almost immediately after addition of the hexafluorophosphate to the molten alloy. The hexafluorophosphates are preferably used in the form of a master composition wherein as diluents metals are used, especially copper.

REFERENCES:
patent: 3380803 (1968-04-01), Jache et al.
patent: 3933476 (1976-01-01), Chopra et al.
patent: 3953202 (1976-04-01), Rasmussen
patent: 4302249 (1981-11-01), Chernogorenko

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