Stock material or miscellaneous articles – All metal or with adjacent metals – Composite; i.e. – plural – adjacent – spatially distinct metal...
Patent
1991-02-28
1992-12-01
Niebling, John
Stock material or miscellaneous articles
All metal or with adjacent metals
Composite; i.e., plural, adjacent, spatially distinct metal...
205156, 205179, 205223, 205229, 205319, 428667, 428935, C25D 548, C25D 1138
Patent
active
051680157
ABSTRACT:
A method for producing a tin free steel having double layers consisting of a lower layer of flatly deposited metallic chromium and an upper layer of insoluble hydrated chromium oxide which is characterized by a dissolution of soluble hydrated chromium oxide after the formation of three layers consisting of a bottom layer of metallic chromium, a middle layer of insoluble hydrated chromium oxide and an upper layer of soluble hydrated chromium oxide on a steel base by using a chromic acid electrolyte with a small amount of fluoride compound.
By using this tin free steel, a welded can body can be produced at high speed without the removal of the plated layer in the welded part because this tin free steel has an excellent weldability.
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Hamano Hideaki
Inui Tsuneo
Kunishige Fumio
Shimizu Nobuyoshi
Leader William T.
Niebling John
Toyo Kohan Co. Ltd.
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