KR970006520A - Manufacturing method of cold rolled steel sheet for expansion vessel with excellent weldability and formability - Google Patents

Manufacturing method of cold rolled steel sheet for expansion vessel with excellent weldability and formability Download PDF

Info

Publication number
KR970006520A
KR970006520A KR1019950023566A KR19950023566A KR970006520A KR 970006520 A KR970006520 A KR 970006520A KR 1019950023566 A KR1019950023566 A KR 1019950023566A KR 19950023566 A KR19950023566 A KR 19950023566A KR 970006520 A KR970006520 A KR 970006520A
Authority
KR
South Korea
Prior art keywords
less
formability
manufacturing
steel sheet
rolled steel
Prior art date
Application number
KR1019950023566A
Other languages
Korean (ko)
Other versions
KR100238012B1 (en
Inventor
김일영
박태엽
오진택
Original Assignee
김만제
포항종합제철 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 김만제, 포항종합제철 주식회사 filed Critical 김만제
Priority to KR1019950023566A priority Critical patent/KR100238012B1/en
Publication of KR970006520A publication Critical patent/KR970006520A/en
Application granted granted Critical
Publication of KR100238012B1 publication Critical patent/KR100238012B1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING 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
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0205—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips of ferrous alloys
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/001—Ferrous alloys, e.g. steel alloys containing N
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/004—Very low carbon steels, i.e. having a carbon content of less than 0,01%
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Heat Treatment Of Steel (AREA)

Abstract

본 발명은 확관 가공하는 용기용 소재로 제관 용접 후 확관 시 용접부위에 크랙이 발생하지 않으며, 용접성 및 포밍성이 우수한 확관 용기용 냉연 강판의 제조 방법에 관한 것으로, 중량 비로, 탄소: 0.005% 이하, 망간 : 0.1~0.4%, 인 : 0.03% 이하, 황 : 6 0.015%, 알루미늄 : 0.06% 이하, 질소 : 0.004% 이하, 티타늄 : 0.03~0.05%, 고용 보론 : 0.005~0.0015%를 함유할 수 있도록 "[Ti]-1.5[S]≥3.43[N]"일 경우 보론 : 0.00065~0.0015%로 하고, "[Ti}-1.5[S]〈3.43"일 경우 보론 : (0.77{[N]-([Ti]-1.5[S]/3.43}+0.0005≤[B]≤(0.77{[N]-([Ti]-1.5[S])/3.43}+0.0015) 범위 내에서 관리하고 잔부 철 불가피하게 함유되는 불순물로 조성한 알루미늄 킬드강을 1200~1250℃의 온도 범위에서 균질화 처리한 후, 910℃ 부근에서 마무리 압연하고, 600~750℃ 부근 온도에서 권취한 다음, 압하율 80% 이상으로 냉간 압연하고, 720℃ 이상에서 연속 소둔한 후, 조질 압연을 행하여 제조하는 것을 특징으로 하는 용접성 및 성형성이 우수한 확관 용기용 냉연 강판의 제조 방법을 제공한다.The present invention relates to a method for manufacturing a cold rolled steel sheet for expansion vessels having excellent weldability and formability, wherein cracks do not occur in the welded portion after expansion of the steel tube as a material for expansion tube processing, and the carbon ratio is 0.005% or less. Manganese: 0.1 ~ 0.4%, phosphorus: 0.03% or less, sulfur: 6 0.015%, aluminum: 0.06% or less, nitrogen: 0.004% or less, titanium: 0.03 ~ 0.05%, solid boron: 0.005 ~ 0.0015% In case of "[Ti] -1.5 [S] ≥3.43 [N]" Boron: 0.00065 ~ 0.0015%, In case of "[Ti} -1.5 [S] <3.43" Boron: (0.77 {[N]-( [Ti] -1.5 [S] /3.43} + 0.0005≤ [B] ≤ (0.77 {[N]-([Ti] -1.5 [S]) / 3.43} +0.0015) After homogenizing the aluminum-kilted steel formed with the impurities contained in the temperature range of 1200 to 1250 ° C, finish rolling at around 910 ° C, winding it at a temperature around 600 to 750 ° C, and cold rolling to 80% or more of reduction ratio , Above 720 ℃ Provides in one after annealing, temper rolling method of manufacturing a cold-rolled steel sheet is performed for excellent weldability and formability, characterized in that for producing tube-expanding vessel.

Description

용접성 및 성형성이 우수한 확관 용기용 냉연 강판의 제조방법Manufacturing method of cold rolled steel sheet for expansion vessel with excellent weldability and formability

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 비교강의 용접 부위를 확대한 현미경 사진, 제2도는 본 발명에 따른 발명강의 용접 부위를 확대한 현미경 사진이다.1 is an enlarged photomicrograph of a welded portion of the comparative steel, and FIG. 2 is an enlarged photomicrograph of a welded portion of the inventive steel according to the present invention.

Claims (1)

중량 비로, 탄소(C): 0.005% 이하, 망간(Mn) : 0.1~0.4%, 인(P) : 0.03% 이하, 황(S) : 0.015%, 알루미늄(Sol-Al) : 0.06% 이하, 질소(N) : 0.004% 이하, 티타늄(Ti) : 0.03~0.05%, 고용 보론(B) : 0.0005~0.0015%를 함유할 수 있도록 "〔Ti〕-1.5[S]≥3.43"[N]일 경우 보론(B) : (0.77{[N]-([Ti]-1.5[S]/3.43}+0.0005≤[B]≤(0.77{[N]-([Ti]-1.5[S])/3.43}+0.0015) 범위 내에서 관리하고 잔부 철(Fe) 및 불가피하게 함유되는 불순물로 조성한 알루미늄 킬드강을 1200~1250℃의 온도 범위에서 균질화 처리한 후, 910℃ 부근에서 마무리 압연하고, 600~750℃ 부근 온도에서 권취한 다움, 압하율 80% 이상으로 냉간 압연하고, 720℃ 이상에서 연속 소둔한 후, 조질 압연을 행하여 제조하는 것을 특징으로 하는 용접성 및 성형성이 우수한 확관 용기용 냉연 강판의 제조 방법.By weight ratio, carbon (C): 0.005% or less, manganese (Mn): 0.1-0.4%, phosphorus (P): 0.03% or less, sulfur (S): 0.015%, aluminum (Sol-Al): 0.06% or less, "[Ti] -1.5 [S] ≥3.43" [N] days to contain nitrogen (N): 0.004% or less, titanium (Ti): 0.03-0.05%, solid solution boron (B): 0.0005-0.0015% Case Boron (B): (0.77 {[N]-([Ti] -1.5 [S] /3.43} + 0.0005≤ [B] ≤ (0.77 {[N]-([Ti] -1.5 [S]) / 3.43} +0.0015), and the aluminum-kilted steel, which is composed of the remaining iron (Fe) and inevitably contained impurities, is homogenized at a temperature range of 1200 to 1250 ° C, and then finish-rolled at around 910 ° C, and 600 to The cold rolled steel sheet for expansion vessel having excellent weldability and formability, which is cold rolled at a temperature of 750 ° C. and cold rolling at a reduction ratio of 80% or more, and continuously annealed at 720 ° C. or higher, is subjected to temper rolling. Manufacturing method. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950023566A 1995-07-31 1995-07-31 The manufacturing method for extruding container cold rolling steel sheet with excellent weldability and formative KR100238012B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950023566A KR100238012B1 (en) 1995-07-31 1995-07-31 The manufacturing method for extruding container cold rolling steel sheet with excellent weldability and formative

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950023566A KR100238012B1 (en) 1995-07-31 1995-07-31 The manufacturing method for extruding container cold rolling steel sheet with excellent weldability and formative

Publications (2)

Publication Number Publication Date
KR970006520A true KR970006520A (en) 1997-02-21
KR100238012B1 KR100238012B1 (en) 2000-01-15

Family

ID=19422499

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019950023566A KR100238012B1 (en) 1995-07-31 1995-07-31 The manufacturing method for extruding container cold rolling steel sheet with excellent weldability and formative

Country Status (1)

Country Link
KR (1) KR100238012B1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19990057391A (en) * 1997-12-29 1999-07-15 이구택 Manufacturing method of low yielding point hardened steel with excellent aging resistance
KR100276295B1 (en) * 1996-11-05 2000-12-15 이구택 The manufacturing method for high work used cold rolling steel sheet with excellent resirtance weldability
KR100345019B1 (en) * 1999-09-11 2002-07-19 주식회사 케이 디 에스 Manufacturing method of steel plate for fork bolt and wedge striker of car door latch

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100530068B1 (en) * 2001-12-17 2005-11-22 주식회사 포스코 Steel strip for the automotive reinforcement parts and method of manufacturing thereof

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69311826T2 (en) * 1992-04-06 1997-10-16 Kawasaki Steel Co Black or tinplate for the manufacture of cans and manufacturing processes
CZ283315B6 (en) * 1992-12-17 1998-02-18 Sankyo Company Limited Biphenyl derivatives, process of their preparation and pharmaceutical preparation containing thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100276295B1 (en) * 1996-11-05 2000-12-15 이구택 The manufacturing method for high work used cold rolling steel sheet with excellent resirtance weldability
KR19990057391A (en) * 1997-12-29 1999-07-15 이구택 Manufacturing method of low yielding point hardened steel with excellent aging resistance
KR100345019B1 (en) * 1999-09-11 2002-07-19 주식회사 케이 디 에스 Manufacturing method of steel plate for fork bolt and wedge striker of car door latch

Also Published As

Publication number Publication date
KR100238012B1 (en) 2000-01-15

Similar Documents

Publication Publication Date Title
US4466842A (en) Ferritic steel having ultra-fine grains and a method for producing the same
US5328528A (en) Process for manufacturing cold-rolled steel sheets with high-strength, and high-ductility and its named article
EP0857794B1 (en) Cold rolled steel sheet and manufacturing process
KR890009482A (en) Coated hot rolled strip and its manufacturing method
CA2097900A1 (en) High-strength cold-rolled steel sheet excelling in deep drawability and method of producing the same
JPS5927370B2 (en) High strength cold rolled steel plate for press working
TW374800B (en) Laminate steel of excellent extrusion property and the manufacture method
CA2076284A1 (en) Cold-rolled high-tension steel sheet having superior deep drawability
US5662864A (en) Fe-Cr alloy exhibiting excellent ridging resistance and surface characteristics
US5759297A (en) Titanium-containing hot-rolled steel sheet with high strength and high drawability and its manufacturing processes
KR970006520A (en) Manufacturing method of cold rolled steel sheet for expansion vessel with excellent weldability and formability
JP3037767B2 (en) Low yield ratio high strength hot-dip galvanized steel sheet and method for producing the same
KR960021198A (en) Manufacturing method of cold rolled steel sheet with excellent formability and hardening hardening
JPS5819441A (en) Manufacture of high tensile cold rolled steel plate with low yield ratio and high burning hardenability
KR970043147A (en) Manufacturing method of high tensile cold rolled steel sheet for deep processing with excellent secondary brittleness
JPH03180426A (en) Method for manufacturing high-strength hot-rolled steel sheet with excellent hole expandability
JPS62188729A (en) Manufacture of high strength steel superior in workability
KR950008708A (en) Manufacturing method of ultra-high strength cold rolled steel sheet with excellent spot weldability and press workability
KR970043163A (en) Manufacturing method of continuous annealing surface treatment disc for drawing and ironing can and deep processing container
JPS61170518A (en) Production of high-strength hot rolled steel sheet having excellent formability
JPH04333526A (en) Hot rolled high tensile strength steel plate having high ductility and its production
EP1984527A2 (en) Method of production of high-strength low-alloyed steel pipes
ZA200101676B (en) Method for producing cold-rolled bands or sheets.
KR970001579A (en) Coil binding steel with excellent ductility and its manufacturing method
JPS5943531B2 (en) Manufacturing method for high-strength cold-rolled steel sheets with excellent workability

Legal Events

Date Code Title Description
PA0109 Patent application

Patent event code: PA01091R01D

Comment text: Patent Application

Patent event date: 19950731

PG1501 Laying open of application
A201 Request for examination
PA0201 Request for examination

Patent event code: PA02012R01D

Patent event date: 19970823

Comment text: Request for Examination of Application

Patent event code: PA02011R01I

Patent event date: 19950731

Comment text: Patent Application

E902 Notification of reason for refusal
PE0902 Notice of grounds for rejection

Comment text: Notification of reason for refusal

Patent event date: 19990601

Patent event code: PE09021S01D

E701 Decision to grant or registration of patent right
PE0701 Decision of registration

Patent event code: PE07011S01D

Comment text: Decision to Grant Registration

Patent event date: 19991004

GRNT Written decision to grant
PR0701 Registration of establishment

Comment text: Registration of Establishment

Patent event date: 19991012

Patent event code: PR07011E01D

PR1002 Payment of registration fee

Payment date: 19991013

End annual number: 3

Start annual number: 1

PG1601 Publication of registration
PR1001 Payment of annual fee

Payment date: 20021002

Start annual number: 4

End annual number: 4

PR1001 Payment of annual fee

Payment date: 20031001

Start annual number: 5

End annual number: 5

PR1001 Payment of annual fee

Payment date: 20041001

Start annual number: 6

End annual number: 6

PR1001 Payment of annual fee

Payment date: 20051005

Start annual number: 7

End annual number: 7

PR1001 Payment of annual fee

Payment date: 20061002

Start annual number: 8

End annual number: 8

PR1001 Payment of annual fee

Payment date: 20071015

Start annual number: 9

End annual number: 9

PR1001 Payment of annual fee

Payment date: 20081006

Start annual number: 10

End annual number: 10

PR1001 Payment of annual fee

Payment date: 20090930

Start annual number: 11

End annual number: 11

PR1001 Payment of annual fee

Payment date: 20101012

Start annual number: 12

End annual number: 12

PR1001 Payment of annual fee

Payment date: 20111012

Start annual number: 13

End annual number: 13

FPAY Annual fee payment

Payment date: 20121012

Year of fee payment: 14

PR1001 Payment of annual fee

Payment date: 20121012

Start annual number: 14

End annual number: 14

FPAY Annual fee payment

Payment date: 20131011

Year of fee payment: 15

PR1001 Payment of annual fee

Payment date: 20131011

Start annual number: 15

End annual number: 15

LAPS Lapse due to unpaid annual fee
PC1903 Unpaid annual fee

Termination category: Default of registration fee

Termination date: 20150909