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1. KR1020210113668 - 냉간 가공용 기계 구조용 강 및 그 제조 방법

Office
République de Corée
Numéro de la demande 1020217025731
Date de la demande 14.01.2020
Numéro de publication 1020210113668
Date de publication 16.09.2021
Type de publication A
CIB
C22C 38/22
CCHIMIE; MÉTALLURGIE
22MÉTALLURGIE; ALLIAGES FERREUX OU NON FERREUX; TRAITEMENT DES ALLIAGES OU DES MÉTAUX NON FERREUX
CALLIAGES
38Alliages ferreux, p.ex. aciers alliés
18contenant du chrome
22et du molybdène ou du tungstène
C21D 8/02
CCHIMIE; MÉTALLURGIE
21MÉTALLURGIE DU FER
DMODIFICATION DE LA STRUCTURE PHYSIQUE DES MÉTAUX FERREUX; DISPOSITIFS GÉNÉRAUX POUR LE TRAITEMENT THERMIQUE DES MÉTAUX FERREUX OU NON FERREUX, OU DES ALLIAGES; PROCÉDÉS POUR RENDRE LE MÉTAL MALLÉABLE PAR DÉCARBURATION, REVENU OU AUTRES TRAITEMENTS
8Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique
02pendant la fabrication de produits plats ou de bandes
C22C 38/00
CCHIMIE; MÉTALLURGIE
22MÉTALLURGIE; ALLIAGES FERREUX OU NON FERREUX; TRAITEMENT DES ALLIAGES OU DES MÉTAUX NON FERREUX
CALLIAGES
38Alliages ferreux, p.ex. aciers alliés
C22C 38/26
CCHIMIE; MÉTALLURGIE
22MÉTALLURGIE; ALLIAGES FERREUX OU NON FERREUX; TRAITEMENT DES ALLIAGES OU DES MÉTAUX NON FERREUX
CALLIAGES
38Alliages ferreux, p.ex. aciers alliés
18contenant du chrome
26et du niobium ou du tantale
C22C 38/28
CCHIMIE; MÉTALLURGIE
22MÉTALLURGIE; ALLIAGES FERREUX OU NON FERREUX; TRAITEMENT DES ALLIAGES OU DES MÉTAUX NON FERREUX
CALLIAGES
38Alliages ferreux, p.ex. aciers alliés
18contenant du chrome
28et du titane ou du zirconium
C22C 38/42
CCHIMIE; MÉTALLURGIE
22MÉTALLURGIE; ALLIAGES FERREUX OU NON FERREUX; TRAITEMENT DES ALLIAGES OU DES MÉTAUX NON FERREUX
CALLIAGES
38Alliages ferreux, p.ex. aciers alliés
18contenant du chrome
40et du nickel
42et du cuivre
CPC
C22C 38/22
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
38Ferrous alloys, e.g. steel alloys
18containing chromium
22with molybdenum or tungsten
C21D 8/0226
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, e.g. BY DECARBURISATION OR TEMPERING
8Modifying the physical properties by deformation combined with, or followed by, heat treatment
02during manufacturing of plates or strips
0221characterised by the working steps
0226Hot rolling
C21D 8/0263
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, e.g. BY DECARBURISATION OR TEMPERING
8Modifying the physical properties by deformation combined with, or followed by, heat treatment
02during manufacturing of plates or strips
0247characterised by the heat treatment
0263following hot rolling
C21D 8/0273
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, e.g. BY DECARBURISATION OR TEMPERING
8Modifying the physical properties by deformation combined with, or followed by, heat treatment
02during manufacturing of plates or strips
0247characterised by the heat treatment
0273Final recrystallisation annealing
C22C 38/001
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
38Ferrous alloys, e.g. steel alloys
001containing N
C22C 38/26
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
38Ferrous alloys, e.g. steel alloys
18containing chromium
26with niobium or tantalum
Déposants 가부시키가이샤 고베 세이코쇼
Inventeurs 야마시타 고지
무라카미 쇼고
사카타 마사유키
지바 마사미치
Mandataires 제일특허법인(유)
Données relatives à la priorité JP-P-2019-016219 31.01.2019 JP
2019211181 22.11.2019 JP
Titre
(KO) 냉간 가공용 기계 구조용 강 및 그 제조 방법
Abrégé
(KO) C: 0.32∼0.44질량%, Si: 0.15∼0.35질량%, Mn: 0.55∼0.95질량%, P: 0.030질량% 이하, S: 0.030질량% 이하, Cr: 0.85∼1.25질량%, Mo: 0.15∼0.35질량%, Al: 0.01∼0.1질량%, 잔부: 철 및 불가피 불순물로 이루어지고, 초석 페라이트의 면적률이 30% 이상 70% 이하이며, 페라이트 결정립의 평균 입경이 5∼15μm인 냉간 가공용 기계 구조용 강이다.
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