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AssigneesTanaka Galvanizing Co., Ltd., Sumitomo Metal Mining Co., Ltd.
InventorsTatsumi Izeki, Yoshihiko Takano, Koshi Takada, Tetsuya Nakada
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A flux for use in a dry process for the flux treatment of the material to be coated with molten metal contains at least one chloride selected from the group consisting of zinc chloride, stannous chloride, an alkali metal chloride and an alkaline earth metal chloride and at least one aliphatic nitrogen derivative with alkyl group having 1 to 18 carbons. The treatment of steel with this flux enables the formation of a coating having a good finish from, among others, a molten alloy of zinc and aluminum, which may further contain other elements, or molten aluminum, by a single dipping operation in an atmospheric environment which has hitherto been difficult. A process for manufacturing steel coated with molten metal, including its treatment with the flux, is also disclosed.
A flux for use in a dry process for the flux treatment of the material to be coated with molten metal, said flux comprising (i) at least one chloride selected from the group consisting of zinc chloride and stannous chloride, (ii) at least one compound selected from the group consisting of an alkali metal chloride and an alkaline earth metal chloride and (iii) at least one alkyl quaternary ammonium salt with alkyl group having 1 to 18 carbons.
A process for manufacturing steel coated with molten metal comprising the steps of:
Dependencies are inferred from the claim text.