ORGANIC RESIN-COATED STEEL SHEET

WIPO Patent Application WO/2023/171173

A1

One purpose of the present invention is to provide an organic resin-coated steel sheet on which molding that is complicated and difficult to be conducted through press molding is to be performed, and which has a small sliding resistance in a portion that has a risk of cracking during a press molding process, while having excellent press moldability in a portion that is to be subjected to a high surface pressure and is expected to experience the occurrence of mold galling. In cases where this organic resin-coated steel sheet is used as a steel sheet for automobiles, it is necessary for this organic resin-coated steel sheet to have film removability that is adequate for an alkaline degreasing process in a coating process, and it is also necessary to have excellent weldability. Another purpose of the present invention for such cases is to provide this organic resin-coated steel sheet which additionally has adequate film removability and excellent weldability.　The present invention provides an organic resin-coated steel sheet which has an organic resin coating film on at least one surface with an average coating amount per one surface of 0.2 g/m2 to 2.0 g/m2 after drying, while having a thin film part, in which the coating amount of the organic resin coating film is 0.14 g/m2 or less, in an area ratio of 25.0% or less.

AOYAMA TOMOHIRO (JP)
FURUYA SHINICHI (JP)
MATSUDA TAKESHI (JP)
NAKAMICHI HARUO (JP)
KAWANO TAKASHI (JP)

PCT/JP2023/002711

September 14, 2023

January 27, 2023

Click for automatic bibliography generation  

JFE STEEL CORP (JP)

B32B15/08; B32B15/18; C23C26/00

JP2017105986A	2017-06-15
JP2002356648A	2002-12-13
JP2000280400A	2000-10-10
JP2002226788A	2002-08-14

KUMASAKA Akira et al. (JP)

View/Download PDF      PDF Help

Previous Patent: SEMICONDUCTOR INTEGRATED CIRCUIT DEVICE, IN-VEHICLE DEVICE, AND VEHICLE

Next Patent: IMAGE PROCESSING DEVICE AND IMAGE PROCESSING METHOD