Properties of a Newly Developed Organic Composite Coated Steel Sheet for Automotive Use

Paper #:
  • 920172

Published:
  • 1992-02-01
Citation:
Odashima, H., Shibata, K., and Kikuchi, I., "Properties of a Newly Developed Organic Composite Coated Steel Sheet for Automotive Use," SAE Technical Paper 920172, 1992, https://doi.org/10.4271/920172.
Pages:
13
Abstract:
The newly developed sheet steel lightly coated with an organic composite is as follows. Zn-Ni alloy plated sheet steel with a coating weight of 30 g/m2 and average Ni concentration of 11.5 ∼12.0 % is chromated through electrolysis. The coating weight of chromate film is 50 ∼90 mg/m2 in Cr. Furthermore, emulsified olefin-acrylic acid copolymer resin mixed with colloidal silica of particle size 7 ∼8 nm applied to a thickness of 1.0 ∼1.8 μm. Olefin-acrylic acid copolymer resin and colloidal silica are mixed at the rate of 100 and 30 (parts by weight). It maintains excellent corrosion resistance even after forming, C-ED paint corrosion resistance and paint adhesion. Furthermore, it has excellent perforation resistance. The product has excellent weldability and is well suited to continuous forming, too. These excellent properties of the newly developed sheet steel lightly coated with an organic composite are obtained by emulsified olefin-acrylic acid copolymer resin and mixed colloidal silica.
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Standard
1992-10-01