BR112018000460A2 - ?método para a fabricação de uma peça, peça e uso de uma peça? - Google Patents

?método para a fabricação de uma peça, peça e uso de uma peça?

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Publication number
BR112018000460A2
BR112018000460A2 BR112018000460A BR112018000460A BR112018000460A2 BR 112018000460 A2 BR112018000460 A2 BR 112018000460A2 BR 112018000460 A BR112018000460 A BR 112018000460A BR 112018000460 A BR112018000460 A BR 112018000460A BR 112018000460 A2 BR112018000460 A2 BR 112018000460A2
Authority
BR
Brazil
Prior art keywords
steel
coated
block
coating
martensite
Prior art date
Application number
BR112018000460A
Other languages
English (en)
Other versions
BR112018000460B1 (pt
BR112018000460B8 (pt
Inventor
Allely Christian
LEUILLIER Grégory
Amorim Machado
Original Assignee
Arcelormittal
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 Arcelormittal filed Critical Arcelormittal
Publication of BR112018000460A2 publication Critical patent/BR112018000460A2/pt
Publication of BR112018000460B1 publication Critical patent/BR112018000460B1/pt
Publication of BR112018000460B8 publication Critical patent/BR112018000460B8/pt

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    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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    • C22C21/10Alloys based on aluminium with zinc as the next major constituent
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    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D1/00General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/62Quenching devices
    • C21D1/673Quenching devices for die quenching
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    • C21D8/00Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0247Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
    • C21D8/0257Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment with diffusion of elements, e.g. decarburising, nitriding
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    • C21D9/00Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/46Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
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    • C23C22/00Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
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    • C21D2211/002Bainite
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    • C21D2211/00Microstructure comprising significant phases
    • C21D2211/008Martensite

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  • Oil, Petroleum & Natural Gas (AREA)
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  • Coating With Molten Metal (AREA)
  • Heat Treatment Of Articles (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

a presente invenção refere-se a um método para a fabricação de uma peça endurecida revestida com um revestimento fosfatável que compreende as etapas a seguir: a) a provisão de uma folha de aço pré-revestida com um revestimento metálico que compreende a partir de 4,0 a 20,0% em peso de zinco, a partir de 1,0 a 3,5% em peso de silício, opcionalmente, a partir de 1,0 a 4,0% em peso de magnésio e, opcionalmente, elementos adicionais escolhidos a partir de pb, ni, zr, ou hf, em que o teor em peso de cada adicional elemento é menos que 0,3% em peso, em que o equilíbrio é de alumínio e impurezas inevitáveis e elementos residuais, b) o corte da folha de aço revestida para obter um bloco bruto, c) o tratamento térmico do bloco bruto a uma temperatura entre 840 e 950 °c para obter uma microestrutura completamente austenítica no aço, d) a transferência do bloco bruto para dentro de uma ferramenta de prensagem, e) a conformação a quente do bloco bruto para obter uma parte, f) o resfriamento da peça obtida na etapa e) a fim de obter uma microestrutura em aço que é martensítica ou martensito-bainítica ou feita de pelo menos 75% de ferrita equiaxial, a partir de 5 a 20% de martensita e bainita em quantidade menor que ou igual a 10%.
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IBPCT/IB2015/001285 2015-07-30
PCT/IB2015/001285 WO2017017485A1 (en) 2015-07-30 2015-07-30 A method for the manufacture of a phosphatable part starting from a steel sheet coated with a metallic coating based on aluminium
PCT/IB2016/001076 WO2017017521A1 (en) 2015-07-30 2016-07-29 A method for the manufacture of a phosphatable part starting from a steel sheet coated with a metallic coating based on aluminium

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KR102094089B1 (ko) 2020-03-27
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US11414737B2 (en) 2022-08-16
EP3329029A1 (en) 2018-06-06
CN107923024B (zh) 2019-12-17
MA42529A (fr) 2018-06-06
WO2017017521A8 (en) 2018-02-22
CN110592516A (zh) 2019-12-20
BR112018000460B1 (pt) 2022-02-22
BR112018000460B8 (pt) 2022-03-15
MA42529B1 (fr) 2021-04-30
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JP6628863B2 (ja) 2020-01-15
WO2017017521A1 (en) 2017-02-02
CA2991549C (en) 2021-03-30
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JP2018527461A (ja) 2018-09-20
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