BR112013017469A2 - Bend correcting method - Google Patents

Bend correcting method

Info

Publication number
BR112013017469A2
BR112013017469A2 BR112013017469-2A BR112013017469A BR112013017469A2 BR 112013017469 A2 BR112013017469 A2 BR 112013017469A2 BR 112013017469 A BR112013017469 A BR 112013017469A BR 112013017469 A2 BR112013017469 A2 BR 112013017469A2
Authority
BR
Brazil
Prior art keywords
performance
product
cylinder
wear
cylinders
Prior art date
Application number
BR112013017469-2A
Other languages
Japanese (ja)
Portuguese (pt)
Other versions
BR112013017469B1 (en
BR112013017469B8 (en
Inventor
Uchida Kazuhiro
Kawakami Tadashi
Original Assignee
Nippon Steel & Sumitomo Metal Corporation
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 Nippon Steel & Sumitomo Metal Corporation filed Critical Nippon Steel & Sumitomo Metal Corporation
Publication of BR112013017469A2 publication Critical patent/BR112013017469A2/en
Publication of BR112013017469B1 publication Critical patent/BR112013017469B1/en
Publication of BR112013017469B8 publication Critical patent/BR112013017469B8/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B23/00—Tube-rolling not restricted to methods provided for in only one of groups B21B17/00, B21B19/00, B21B21/00, e.g. combined processes planetary tube rolling, auxiliary arrangements, e.g. lubricating, special tube blanks, continuous casting combined with tube rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
    • B21D3/02—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts by rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
    • B21D3/02—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts by rollers
    • B21D3/04—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts by rollers arranged on axes skew to the path of the work

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Heat Treatment Of Articles (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Powder Metallurgy (AREA)

Abstract

método para desempenamento trata-se de um método pra desempenamento de um produto de aço, que compreende o uso de cilindros de desempenamento de liga dura, cada qual fabricado a partir de um material sinterizado à base de carbeto de tungstênio/cobalto (wc-co) (metal duro), em que a dureza de cada cilindro é hra85 a 87. de acordo com esse método de desempenamento, quando flexões do produto de aço são desempenadas, o desgaste do cilindro é suprimido , evita-se que marca (s) defeituosa (s) no cilindro causada (s) pelo desgaste do cilindro seja (m) formada (s) na superfície do produto que está sendo desempenado, e o tempo para a mudança e/ou organização de cilindros é encurtado para aprimorar a taxa de operação da máquina de desempenamento, por meio de que a eficiência de um processo de acabamento e, consequentemente, a produtividade pode ser melhorada. portanto, esse método é especialmente eficiente no caso em que um produto a ser desempenado é um produto de alta resistência tal qual um tubo de aço para um air bag de veículo motorizado.Performance method is a steel product performance method comprising the use of hard alloy performance cylinders, each manufactured from a tungsten / cobalt carbide-based sintered material (wc-co ) (hard metal), where the hardness of each cylinder is hra85 to 87. According to this performance method, when bending of the steel product is performed, the wear of the cylinder is suppressed, which mark (s) is avoided. Cylinder failure (s) caused by cylinder wear is formed on the surface of the product being performed, and the time for changing and / or arranging cylinders is shortened to improve the rate of change. performance of the performance machine, whereby the efficiency of a finishing process and hence productivity can be improved. therefore, this method is especially effective where a product to be performed is a high strength product such as a steel tube for a motor vehicle air bag.

BR112013017469A 2011-02-14 2012-02-10 method for performance and use of performance cylinders BR112013017469B8 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2011028905A JP5462202B2 (en) 2011-02-14 2011-02-14 Bending correction method
JP2011-028905 2011-02-14
PCT/JP2012/000896 WO2012111291A1 (en) 2011-02-14 2012-02-10 Method for straightening

Publications (3)

Publication Number Publication Date
BR112013017469A2 true BR112013017469A2 (en) 2018-09-04
BR112013017469B1 BR112013017469B1 (en) 2020-06-16
BR112013017469B8 BR112013017469B8 (en) 2020-09-29

Family

ID=46672238

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112013017469A BR112013017469B8 (en) 2011-02-14 2012-02-10 method for performance and use of performance cylinders

Country Status (9)

Country Link
US (1) US20130327110A1 (en)
EP (1) EP2676746B1 (en)
JP (1) JP5462202B2 (en)
KR (1) KR20130118960A (en)
CN (1) CN103370149A (en)
BR (1) BR112013017469B8 (en)
MX (1) MX363214B (en)
TW (1) TWI538751B (en)
WO (1) WO2012111291A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103691774A (en) * 2013-12-20 2014-04-02 鞍钢股份有限公司 Straightening method of seamless pipe
KR102059036B1 (en) 2018-09-12 2019-12-24 김덕현 Warp correction methods and warp correction device for steel material

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55128318A (en) 1979-03-29 1980-10-04 Sumitomo Metal Ind Ltd Straightening method of pipe
US4756180A (en) * 1984-09-07 1988-07-12 Sumitomo Electric Industries, Ltd. Method of hot rolling for iron and iron alloy rods
JPH0847722A (en) 1994-08-08 1996-02-20 Nippon Steel Corp Method and device for straightening bend for steel pipe
JP2004136296A (en) * 2002-10-15 2004-05-13 Hitachi Metals Ltd Composite rolling roll
JP2004195515A (en) * 2002-12-19 2004-07-15 Jfe Steel Kk Method for hot-rolling stainless steel
JP2005103557A (en) * 2003-09-26 2005-04-21 Kobe Steel Ltd Device and method for manufacturing tube with grooved inner face
EP2018911B1 (en) * 2006-04-14 2020-05-27 Nippon Steel Corporation Method for correcting pipe and method for producing pipe by using that correction method
MX2009003114A (en) * 2006-10-25 2009-06-08 Tdy Ind Inc Articles having improved resistance to thermal cracking.
JP2008173643A (en) * 2007-01-16 2008-07-31 Sumitomo Metal Ind Ltd Manufacturing method, straightening method and strength adjusting method of duplex stainless steel tube and method of operating straightening machine for duplex stainless steel tube
CN101636235B (en) * 2007-02-20 2011-09-07 西门子公司 Cylinder and/or roller and a method for producing a cylinder and/or a roller
JP4770922B2 (en) * 2008-12-08 2011-09-14 住友金属工業株式会社 Steel pipe for airbag and manufacturing method thereof
CN101507990A (en) * 2009-03-25 2009-08-19 江苏诚德钢管股份有限公司 Straightening method for end-thickened steel pipe
CN101927278B (en) * 2010-06-03 2012-11-07 天津商业大学 Method for realizing precision straightening of thin-wall seamless steel tubes by adopting six-roller straightener

Also Published As

Publication number Publication date
EP2676746A4 (en) 2016-09-07
EP2676746B1 (en) 2018-10-24
JP2012166233A (en) 2012-09-06
JP5462202B2 (en) 2014-04-02
BR112013017469B1 (en) 2020-06-16
MX363214B (en) 2019-03-15
MX2013008855A (en) 2013-08-14
KR20130118960A (en) 2013-10-30
US20130327110A1 (en) 2013-12-12
BR112013017469B8 (en) 2020-09-29
WO2012111291A1 (en) 2012-08-23
EP2676746A1 (en) 2013-12-25
TWI538751B (en) 2016-06-21
TW201302337A (en) 2013-01-16
CN103370149A (en) 2013-10-23

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Legal Events

Date Code Title Description
B06F Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]
B25D Requested change of name of applicant approved

Owner name: NIPPON STEEL CORPORATION (JP)

B06U Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 10/02/2012, OBSERVADAS AS CONDICOES LEGAIS.

B16C Correction of notification of the grant

Free format text: REF. RPI 2580 DE 16/06/2020 QUANTO AO ENDERECO.