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1. WO2020116876 - HOT PRESS FORMING MEMBER HAVING EXCELLENT RESISTANCE TO HYDROGEN EMBRITTLEMENT, AND METHOD FOR MANUFACTURING SAME

Publication Number WO/2020/116876
Publication Date 11.06.2020
International Application No. PCT/KR2019/016838
International Filing Date 02.12.2019
IPC
C23C 2/28 2006.01
CCHEMISTRY; METALLURGY
23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
2Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
26After-treatment
28Thermal after-treatment, e.g. treatment in oil bath
CPC
B21D 35/00
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
35Combined processes according to ; or processes combined with; methods covered by groups B21D1/00 - B21D31/00
C21D 9/46
CCHEMISTRY; METALLURGY
21METALLURGY OF IRON
DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHER TREATMENTS
9Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
46for sheet metals
C22C 38/00
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
38Ferrous alloys, e.g. steel alloys
C22C 38/02
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
38Ferrous alloys, e.g. steel alloys
02containing silicon
C22C 38/04
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
38Ferrous alloys, e.g. steel alloys
04containing manganese
C22C 38/06
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
38Ferrous alloys, e.g. steel alloys
06containing aluminium
Applicants
  • 주식회사 포스코 POSCO [KR]/[KR]
Inventors
  • 김성우 KIM, Seong-Woo
  • 오진근 OH, Jin-Keun
  • 김상헌 KIM, Sang-Heon
  • 한상빈 HAN, Sang-Bin
Agents
  • 특허법인 씨엔에스 C&S PATENT AND LAW OFFICE
Priority Data
10-2018-015353303.12.2018KR
Publication Language Korean (KO)
Filing Language Korean (KO)
Designated States
Title
(EN) HOT PRESS FORMING MEMBER HAVING EXCELLENT RESISTANCE TO HYDROGEN EMBRITTLEMENT, AND METHOD FOR MANUFACTURING SAME
(FR) ÉLÉMENT FORMANT UNE PRESSE À CHAUD AYANT UNE EXCELLENTE RÉSISTANCE À LA FRAGILISATION PAR L'HYDROGÈNE, ET SON PROCÉDÉ DE FABRICATION
(KO) 수소취성에 대한 저항성이 우수한 열간 프레스 성형 부재 및 그 제조방법
Abstract
(EN)
The present invention pertains to a hot press forming member having excellent resistance to hydrogen embrittlement, and a method for manufacturing same. An aspect of the present invention provides a hot press forming member having excellent resistance to hydrogen embrittlement, the hot press forming member comprising a base steel plate and an alloy-plated layer formed on the surface of the base steel plate, wherein the alloy-plated layer contains pores such that pores having a size of 5 μm or less constitute 3-30% of the surface area of the alloy-plated layer as viewed in a cross-section taken in the thickness direction of the member.
(FR)
La présente invention concerne un élément de formage par presse à chaud ayant une excellente résistance à la fragilisation par l'hydrogène, et son procédé de fabrication. Un aspect de la présente invention concerne un élément de formation par presse à chaud ayant une excellente résistance à la fragilisation par l'hydrogène, l'élément de formation par presse à chaud comprenant une plaque d'acier de base et une couche plaquée d'alliage formée sur la surface de la plaque d'acier de base, la couche plaquée d'alliage contenant des pores de sorte que des pores ayant une taille de 5 µm ou moins constituent 3 à 30 % de la surface de la couche plaquée d'alliage telle qu'observée dans une section transversale prise dans la direction de l'épaisseur de l'élément.
(KO)
본 발명은 내 수소취성이 우수한 열간 프레스 성형 부재 및 그 제조방법 에 관한 것이다. 본 발명의 일 측면은 소지강판 및 상기 소지강판 표면에 형성된 합금 도금층을 포함하고, 부재를 두께 방향으로 절단한 단면에서 보았을 때, 상기 합금 도금층은 합금 도금층의 면적 대비 크기 5㎛ 이하의 기공이 차지하는 면적의 비율이 3~30%이 되도록 기공을 포함하는 수소취성에 대한 저항성이 우수한 열간 프레스 성형 부재를 제공한다.
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