Invention Grant
- Patent Title: Method for producing shaped aluminium sheets with a decorative finish
- Patent Title (中): 具有装饰漆的成型铝板的制造方法
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Application No.: US11660773Application Date: 2004-09-08
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Publication No.: US07645488B2Publication Date: 2010-01-12
- Inventor: Walter Hotz , Volkmar Gillich , Roman Fuchs
- Applicant: Walter Hotz , Volkmar Gillich , Roman Fuchs
- Applicant Address: CH Neuhausen am Rheinfall
- Assignee: Alcan Technology & Management Ltd.
- Current Assignee: Alcan Technology & Management Ltd.
- Current Assignee Address: CH Neuhausen am Rheinfall
- Agency: Bachman & LaPointe, P.C.
- International Application: PCT/EP2004/010010 WO 20040908
- International Announcement: WO2006/027007 WO 20060316
- Main IPC: B05D1/38
- IPC: B05D1/38

Abstract:
A method for producing weather- and corrosion-resistant shaped sheets consisting of aluminum or an aluminum alloy with a decorative finish in a coil coating process that comprises the following sequential steps: an aluminum strip or aluminum alloy strip is provided; optional continuous degreasing of the strip; optional electrochemical, chemical or mechanical burnishing of the optionally degreased strip; the optionally degreased and/or burnished strip is continuously pre-treated to create a pre-treated layer that is suitable for use as an adhesive base for a paint layer; the optionally degreased strip is continuously pre-treated to create a strip surface that is suitable for use as an adhesive base for a paint layer; the pre-treated strip is continuously painted with a sol-gel paint consisting of a polysiloxane to create a first protect protective layer; the first protective layer is continuously dried and cured in a continuous furnace; the sheets are produced by shaping the strip that comprises the first protective layer and cutting the sheets that are optionally to be further shaped, or by cutting the sheets out of the strip that comprises the first protective layer and shaping the cut sheets; the shaped sheets are painted with a sol-gel paint consisting of a polysiloxane to create a second protective layer and the second protective layer is dried and cured in a furnace. The shaped parts that are produced by the method are characterized by excellent weather- corrosion- and abrasion resistance.
Public/Granted literature
- US20080008833A1 Method for Production of Formed Aluminium Metal Parts with Decorative Surface Public/Granted day:2008-01-10
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