Title:
HOT PRESSING MEMBER, COATING MEMBER, STEEL SHEET FOR HOT PRESSING, METHOD FOR MANUFACTURING HOT PRESSING MEMBER, AND METHOD FOR MANUFACTURING COATING MEMBER
Document Type and Number:
WIPO Patent Application WO/2022/158062
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide: a hot pressing member and a coating member having excellent post-coating image clarity and excellent post-coating corrosion resistance; and a method for manufacturing same. Furthermore, the purpose of the present invention is to provide a steel sheet for hot pressing, wherein the steel sheet is suitable for the hot pressing member having excellent post-coating image clarity and excellent post-coating corrosion resistance. The wave filtration center line waviness Wca of at least one surface of the hot pressing member of the present invention is 1.5 μm or less. Furthermore, the wave filtration center line waviness Wca of at least one surface of the steel sheet for hot pressing of the present invention is 0.75 μm or less.
Inventors:
SATO RINTA (JP)
MIZUNO DAISUKE (JP)
TANAKA MINORU (JP)
NISHIIKE RYOTO (JP)
MIZUNO DAISUKE (JP)
TANAKA MINORU (JP)
NISHIIKE RYOTO (JP)
Application Number:
PCT/JP2021/039089
Publication Date:
July 28, 2022
Filing Date:
October 22, 2021
Export Citation:
Assignee:
JFE STEEL CORP (JP)
International Classes:
C21D9/00; B21B3/00; C21D1/18; C21D9/46; C22C18/00; C22C18/04; C22C21/02; C22C38/00; C22C38/06; C22C38/60; C23C2/06; C23C2/12; C23C28/00
Domestic Patent References:
| WO2016163467A1 | 2016-10-13 |
Foreign References:
| JP2020041175A | 2020-03-19 | |||
| JP2020180312A | 2020-11-05 | |||
| JP2014014834A | 2014-01-30 | |||
| JP2000038640A | 2000-02-08 | |||
| JP2013503254W | ||||
| JPS63299802B1 | ||||
| JPH04285149A | 1992-10-09 |
Other References:
MALEK NADERI: "Hot Stamping of Ultra High Strength Steels", VON DER FAKULTÄT FÜR GEORESSOURCEN UND MATERIALTECHNIK DER RHEINISCH-WESTFÄLISCHEN TECHNISCHEN HOCHSCHULE AACHEN ZUR ERLANGUNG DES AKADEMISCHEN GRADES EINES DOKTORS DER INGENIEURWISSENSCHAFTEN GENEHMIGTE DISSERTATION, 1 January 2008 (2008-01-01), pages 1 - 190, XP055340807, [retrieved on 20170131]
MA XIAOGUANG, ZHAO JINGWEI, DU WEI, ZHANG XIN, JIANG ZHENGYI: "Analysis of surface roughness evolution of ferritic stainless steel using crystal plasticity finite element method", JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY, vol. 8, no. 3, 1 May 2019 (2019-05-01), BR , pages 3175 - 3187, XP093151659, ISSN: 2238-7854, DOI: 10.1016/j.jmrt.2019.03.017
KURZYNSKI J.: "Erarbeitung einer Normvorlage zur einheit lichen Bewertung des Einflusses der Wellig keit in der Feinblechoberfläche auf die Aus bildung der Decklackverlaufstruktur (WaveNorm), Bericht Nr. 6.44.056", VDEH-BETRIEBSFORSCHUNGSINSTITUT, BFI, 1 June 2015 (2015-06-01), pages 1 - 56, XP093035282
MA XIAOGUANG, ZHAO JINGWEI, DU WEI, ZHANG XIN, JIANG ZHENGYI: "Analysis of surface roughness evolution of ferritic stainless steel using crystal plasticity finite element method", JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY, vol. 8, no. 3, 1 May 2019 (2019-05-01), BR , pages 3175 - 3187, XP093151659, ISSN: 2238-7854, DOI: 10.1016/j.jmrt.2019.03.017
KURZYNSKI J.: "Erarbeitung einer Normvorlage zur einheit lichen Bewertung des Einflusses der Wellig keit in der Feinblechoberfläche auf die Aus bildung der Decklackverlaufstruktur (WaveNorm), Bericht Nr. 6.44.056", VDEH-BETRIEBSFORSCHUNGSINSTITUT, BFI, 1 June 2015 (2015-06-01), pages 1 - 56, XP093035282
Attorney, Agent or Firm:
KUMASAKA Akira et al. (JP)
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