Adhesive bonding and miscellaneous chemical manufacture – Delaminating processes adapted for specified product – Delaminating in preparation for post processing recycling step
Patent
1991-02-08
1992-03-31
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, 252 793, B44C 122, C23F 102, C09K 1308
Patent
active
051005000
ABSTRACT:
A substantially nitrate-free solution for milling products of refractory metals, especially titanium, which solution comprises: (a) about 5-100 g/l of ammonium bifluoride; (b) up to about 90 g/l of hydrochloric acid; and (c) a balance of water and impurities. Preferred embodiments of this aqueous solution consist essentially of about 15-75 g/l of NH.sub.4 HF.sub.2 and about 8-70 g/l of HCl. An alternative embodiment includes up to about 170 g/l of H.sub.2 O.sub.2. There is further disclosed a method for chemically milling, etching and/or pickling metal products, such as titanium alloy forgings, with the aforementioned solutions.
REFERENCES:
patent: 2711364 (1955-06-01), Beach
patent: 2981610 (1961-04-01), Snyder et al.
patent: 3061494 (1962-10-01), Snyder et al.
patent: 3078203 (1963-02-01), LaBoda et al.
patent: 3666580 (1972-05-01), Kremi et al.
patent: 3788914 (1974-01-01), Gumbelevicius
patent: 3844859 (1974-10-01), Roni
patent: 3905907 (1975-09-01), Shiga
patent: 3944496 (1976-03-01), Coggins et al.
patent: 3986970 (1976-10-01), Shiga
patent: 4052253 (1977-10-01), Kingzett
patent: 4116755 (1978-09-01), Coggins et al.
patent: 4130454 (1978-12-01), Dutkewych et al.
patent: 4194285 (1980-03-01), Goel
patent: 4220706 (1980-09-01), Spak
patent: 4314876 (1982-02-01), Kremer et al.
patent: 4704188 (1987-11-01), Carlson et al.
patent: 4787958 (1988-11-01), Lytle
patent: 4900398 (1990-02-01), Chen
"Fundamentals of Chemical Milling", by J. W. Dini, American Machinist Special Report 768, Jul. 1984, pp. 113-128.
"Chemical Milling", by J. W. Dini, International Metallurgical Reviews, 1975, vol. 20, pp. 29-55.
Dastolfo LeRoy E.
Mrozinski John E.
Aluminum Company of America
Powell William A.
Topolosky Gary P.
LandOfFree
Milling solution and method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Milling solution and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Milling solution and method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2256526