Chemical milling of aluminum-lithium alloys

Details Chemical milling of aluminum-lithium alloys Chemical milling of aluminum-lithium alloys

1990-11-13

1993-02-16

Hearn, Brian E.

Adhesive bonding and miscellaneous chemical manufacture

Delaminating processes adapted for specified product

Delaminating in preparation for post processing recycling step

156664, 252 791, 252 795, H01L 2100

Patent

active

051867907

ABSTRACT:
Disclosed is a method of etching a lithium-containing aluminum base alloy product, the method comprising the steps of providing an etch bath comprised of 30-110 gms/liter sodium hydroxide, 15-150 gms/liter aluminum, at least 20 gms/liter sodium sulphide, and at least 20 gms/liter triethanolamine, the remainder water. The bath is maintained at a temperature range of 150.degree. to 225.degree. F. and the product to be etched is immersed therein and then rinsed. This treatment provides a finish having smoothness of less than 100 microinches.

REFERENCES:
patent: 2869267 (1957-02-01), Holman
patent: 2890944 (1959-06-01), Hays
patent: 3356550 (1967-12-01), Stiffler et al.
patent: 3481877 (1969-12-01), Moll
patent: 3557000 (1971-01-01), Smith
patent: 3810797 (1974-05-01), Schaffstall et al.
patent: 3957553 (1976-05-01), Smith
patent: 4372805 (1983-02-01), Takahashi et al.
patent: 4417949 (1983-11-01), Lindner et al.
patent: 4601780 (1986-07-01), Coggins et al.
patent: 4826605 (1989-05-01), Doble et al.
patent: 4851077 (1989-07-01), Bruce
patent: 4915782 (1990-04-01), Coggins et al.

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