Production method for aluminum alloy coated steel sheet

C - Chemistry – Metallurgy – 23 – C

Patent

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Details

IPC codes

C23C 2/12 (2006.01) C22C 21/02 (2006.01) C23C 2/40 (2006.01)

Type

Patent

Patent number

CA 2393011

Description

A production method for an aluminum alloy coated steel sheet. The aluminum alloy coated steel sheet is improved in appearance, corrosion resistance and workability resulting from dipping a base steel sheet into an aluminum alloy coating bath with a Si content of 5 to 15 parts by weight, a Cr content of 0.1 to 1.5 parts by weight and a Mg content of 0.01 to 3.0 parts by weight. Because of excellent workability, peeling of a coating layer and cracks of a coating film are reduced upon press working, thereby corrosion resistance being improved even after working. As a result, car mufflers, heat resistant home electric appliances, etc. having improved corrosion resistance can be produced.

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