Invention Grant
- Patent Title: Method for hot dip coating a flat steel product
- Patent Title (中): 热轧镀锌钢板产品的方法
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Application No.: US13819481Application Date: 2011-08-18
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Publication No.: US09279175B2Publication Date: 2016-03-08
- Inventor: Marc Blumenau , Hans-Joachim Heiler , Fred Jindra , Rudolf Schoenenberg , Hans-Joachim Krautschick
- Applicant: Marc Blumenau , Hans-Joachim Heiler , Fred Jindra , Rudolf Schoenenberg , Hans-Joachim Krautschick
- Applicant Address: DE Duisburg
- Assignee: ThyssenKrupp Steel Europe AG
- Current Assignee: ThyssenKrupp Steel Europe AG
- Current Assignee Address: DE Duisburg
- Agency: The Webb Law Firm
- Priority: DE102010037254 20100831
- International Application: PCT/EP2011/064222 WO 20110818
- International Announcement: WO2012/028465 WO 20120308
- Main IPC: C23C2/02
- IPC: C23C2/02 ; C23C8/10 ; C23C2/12 ; C23C2/40 ; C23C2/00

Abstract:
A method for hot dip coating a flat stainless steel product with more than 5 wt. % Cr with a protective metallic coating by: heating the flat steel product under an oxygen-free heating atmosphere to 100° C.-600° C. within 1-30 seconds; continuing heating to a holding temperature of 750° C.-950° C., by heating to 550° C.-800° C. under an inert or reducing atmosphere, holding within this temperature window for 1 to 15 seconds under an oxidizing atmosphere, and continuing heating under an inert or reducing atmosphere, until the holding temperature is reached; holding at the holding temperature for 10-120 seconds under a reducing atmosphere; and passing the flat steel product through a nozzle area under an inert or reducing atmosphere at 430°-780° C. and into a molten bath in which the flat steel product is coated with the metallic coating.
Public/Granted literature
- US20140144550A1 Method for Hot Dip Coating of a Flat Steel Product Public/Granted day:2014-05-29
Information query
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