Milling solution and method

Details Milling solution and method Milling solution and method

1991-12-16

1993-06-01

Powell, William A.

Adhesive bonding and miscellaneous chemical manufacture

Delaminating processes adapted for specified product

Delaminating in preparation for post processing recycling step

156654, 1566591, 156664, 252 792, 252 793, B44C 122, C23F 100, C09K 1304, C09K 1308

Patent

active

052156249

ABSTRACT:
A substantially nitrate-free solution for milling products of refractory metals, especially titanium, which solution contains: (a) about 5-100 g/l of ammonium bifluoride; (b) up to about 90 g/1 of hydrochloric acid; (c) a hydrogen inhibitor which may be either sodium chlorate or ammonium peroxysulfate; and (d) a balance of water and impurities. There is further disclosed a method for chemically milling, etching and/or pickling metal products, such as titanium alloy forgings, with the aforementioned solution.

REFERENCES:
patent: 4900398 (1990-02-01), Chen
patent: 5100500 (1992-03-01), Dastolfo et al.

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