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1. CN101490298 - Stainless steel sheet for parts and process for manufacturing the same

Office
Chine
Numéro de la demande 200780027652.2
Date de la demande 30.07.2007
Numéro de publication 101490298
Date de publication 22.07.2009
Numéro de délivrance 101490298
Date de délivrance 16.11.2011
Type de publication B
CIB
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
C21D 9/46
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
9Traitement thermique, p.ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliers; Fours à cet effet
46pour tôles
C22C 38/58
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
58et plus de 1,5% en poids de manganèse
CPC
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
C21D 6/004
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
6Heat treatment of ferrous alloys
004containing Cr and Ni
C21D 8/0236
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
0236Cold rolling
C21D 8/0252
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
0252with application of tension
C21D 8/0436
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
04to produce plates or strips for deep-drawing
0421characterised by the working steps
0436Cold rolling
C21D 8/0452
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
04to produce plates or strips for deep-drawing
0447characterised by the heat treatment
0452with application of tension
Déposants Sumitomo Metal Ind
住友金属工业株式会社
Inventeurs Adachi Kazuhiko
安达和彦
Abe Masaru
阿部贤
Fujisawa Kazuyoshi
藤泽一芳
Mandataires li guiliang
中科专利商标代理有限责任公司 11021
Données relatives à la priorité 206250/2006 28.07.2006 JP
Titre
(EN) Stainless steel sheet for parts and process for manufacturing the same
(ZH) 部件用不锈钢钢板及其制造方法
Abrégé
(EN)
The invention provides a stainless steel sheet which has excellent strength and ductility and is improved in workability (formability and etchability) and fatigue characteristics and a process for manufacturing the stainless steel sheet. Further, the invention ensures industrial and stable supply of the stainless steel sheet at a low cost. A stainless steel sheet which contains by mass C: 0.01 to 0.08%, Si: 0.1 to 2.0%, Mn: 3.0% or below, Cr: 10.0 to 20.0%, Ni: 3.0 to 12.0% and N: 0.02 to 0.24% when the whole amount of the stainless steel is taken as 100% by mass and has an Md value of 0 to 80 as defined by the formula: Md=500-458(C+N)-9(Si+Mn)-14Cr-20Ni and in which compounds formed from the above components and having maximum diameters of 20mum or above reside in an amount of at most 30 pieces per 5g by mass of the stainless steel and the metal structure of the whole of the stainless steel is a mixed structure composed of recrystallized grains and unrecrystallized parts.

(ZH)

提供一种不锈钢钢板及该不锈钢钢板的制造方法,其既具有良好的强度和延展性,又能够使加工性(成形性、刻蚀性)及疲劳强度提高。此外还可廉价且工业上稳定供给该不锈钢钢板。设不锈钢的整体为100质量%时,含有C:0.01~0.08质量%、Si:0.1~2.0质量%、Mn:3.0质量%以下、Cr:10.0~20.0质量%、Ni:3.0~12.0质量%、N:0.02~0.24质量%的各成分,并且,由“Md=500-458(C+N)-9(Si+Mn)-14Cr-20Ni”代表的Md值为0~80,并且由各成分形成的该化合物之中,最大径20μm以上的该化合物在不锈钢的每5g质量中内在30个以下,此外该不锈钢整体的金属组织是再结晶晶粒及未再结晶部的混合组织。

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