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BRPI0702568A - processo para endurecer aço inoxidável e fusão de sal para a execução do processo - Google Patents

processo para endurecer aço inoxidável e fusão de sal para a execução do processo

Info

Publication number
BRPI0702568A
BRPI0702568A BRPI0702568-8A BRPI0702568A BRPI0702568A BR PI0702568 A BRPI0702568 A BR PI0702568A BR PI0702568 A BRPI0702568 A BR PI0702568A BR PI0702568 A BRPI0702568 A BR PI0702568A
Authority
BR
Brazil
Prior art keywords
stainless steel
workpiece
salt fusion
maintained
harden
Prior art date
Application number
BRPI0702568-8A
Other languages
English (en)
Inventor
Ulrich Baudis
Original Assignee
Durferrit Gmbh
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 Durferrit Gmbh filed Critical Durferrit Gmbh
Publication of BRPI0702568A publication Critical patent/BRPI0702568A/pt
Publication of BRPI0702568B1 publication Critical patent/BRPI0702568B1/pt

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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/34—Methods of heating
    • C21D1/44—Methods of heating in heat-treatment baths
    • C21D1/46—Salt baths
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/40—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using liquids, e.g. salt baths, liquid suspensions
    • C23C8/42—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using liquids, e.g. salt baths, liquid suspensions only one element being applied
    • C23C8/44—Carburising
    • C23C8/46—Carburising of ferrous surfaces
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/40—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using liquids, e.g. salt baths, liquid suspensions
    • C23C8/42—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using liquids, e.g. salt baths, liquid suspensions only one element being applied
    • C23C8/48—Nitriding
    • C23C8/50—Nitriding of ferrous surfaces
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/40—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using liquids, e.g. salt baths, liquid suspensions
    • C23C8/52—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using liquids, e.g. salt baths, liquid suspensions more than one element being applied in one step
    • C23C8/54—Carbo-nitriding
    • C23C8/56—Carbo-nitriding of ferrous surfaces

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Heat Treatment Of Articles (AREA)
  • Chemical Treatment Of Metals (AREA)
  • Coating With Molten Metal (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)

Abstract

PROCESSO PARA ENDURECER AçO INOXIDáVEL E FUSãO DE SAL PARA A EXECUçãO DO PROCESSO. A presente invenção refere-se a um processo para endurecer peças de aço inoxidável através da difusão dos elementos carbono e/ou nitrogênio nas superfícies das peças. As peças são imersas em uma fusão de sal e expostas a temperaturas abaixo de 450<198>C por um espaço de tempo de 15 minutos até 240<198>C. A fusão de sal, além de cloreto de potássio e cloreto de lítio, contém uma substância ativadora formada de cloreto de bário, estróncio, magnésio e/ou cálcio bem como uma substância distribuidora de carbono de um cianeto livre ou complexo.
BRPI0702568A 2006-06-09 2007-06-08 processo para endurecer aço inoxidável e fusão de sal para a execução do processo BRPI0702568B1 (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006026883A DE102006026883B8 (de) 2006-06-09 2006-06-09 Verfahren zum Härten von Edelstahl und Salzschmelze zur Durchführung des Verfahrens

Publications (2)

Publication Number Publication Date
BRPI0702568A true BRPI0702568A (pt) 2008-02-19
BRPI0702568B1 BRPI0702568B1 (pt) 2015-10-13

Family

ID=38266223

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0702568A BRPI0702568B1 (pt) 2006-06-09 2007-06-08 processo para endurecer aço inoxidável e fusão de sal para a execução do processo

Country Status (13)

Country Link
US (1) US7909943B2 (pt)
EP (1) EP1865088B1 (pt)
JP (1) JP5101173B2 (pt)
KR (1) KR20070118008A (pt)
CN (1) CN101235477B (pt)
AT (1) ATE443163T1 (pt)
BR (1) BRPI0702568B1 (pt)
CA (1) CA2591244A1 (pt)
DE (2) DE102006026883B8 (pt)
ES (1) ES2331383T3 (pt)
MX (1) MX2007006969A (pt)
PL (1) PL1865088T3 (pt)
ZA (1) ZA200704591B (pt)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202005008582U1 (de) * 2005-05-31 2005-07-28 Arnold & Stolzenberg Gmbh Rollenkette
JP5148209B2 (ja) * 2007-08-28 2013-02-20 学校法人同志社 溶融塩電気化学プロセスを用いた表面窒化処理方法
DE102007051949B3 (de) 2007-10-31 2009-03-12 Durferrit Gmbh Verfahren zum Härten von Oberflächen von Werkstücken aus Edelstahl und Verwendung einer Salzschmelze zur Durchführung des Verfahrens
DE102007059229A1 (de) * 2007-11-19 2009-05-20 Konrad Damasko Verfahren zum Herstellen eines Bauteils mit gehärteter Oberfläche
US9101896B2 (en) * 2010-07-09 2015-08-11 Sri International High temperature decomposition of complex precursor salts in a molten salt
FR2972459B1 (fr) * 2011-03-11 2013-04-12 Hydromecanique & Frottement Bains de sels fondus pour la nitruration de pieces mecaniques en acier, et un procede de mise en oeuvre
DE102011087960A1 (de) * 2011-12-08 2013-06-13 Witzenmann Gmbh Flexibles Metallelement und Verfahren zum Herstellen eines flexiblen Metallelements
EP2680090A1 (fr) * 2012-06-28 2014-01-01 Nivarox-FAR S.A. Ressort-moteur pour une pièce d'horlogerie
DE102012018551A1 (de) * 2012-09-20 2014-03-20 Wika Alexander Wiegand Se & Co. Kg Edelstahlrohr mit Randhärtung
SI2886668T1 (sl) 2013-12-19 2019-03-29 Groz-Beckert Kg Tekstilno orodje in postopek njegove izdelave
CN104060216A (zh) * 2014-06-12 2014-09-24 江苏海纳机电集团有限公司 一种不锈钢表面获得过饱和固溶体的盐浴硬化处理方法
DE102016215709A1 (de) * 2015-08-28 2017-03-02 Tsubakimoto Chain Co. Kettenkomponente und Kette
US11352508B2 (en) * 2018-01-19 2022-06-07 Dynalene Inc. Molten salt inhibitor and method for corrosion protection of a steel component
WO2020004667A1 (ja) * 2018-06-29 2020-01-02 ワークソリューション株式会社 医療器具、医療装置、医療器具の製造方法、及び、金属製物品
US10974904B2 (en) 2018-08-31 2021-04-13 John Bean Technologies Corporation Hardened components in a conveyor drive system
JP7178832B2 (ja) * 2018-08-31 2022-11-28 日本パーカライジング株式会社 表面硬化材料の製造方法
EP3647239B1 (en) 2018-10-30 2023-08-16 John Bean Technologies Corporation Systems and methods for chain wear elongation measurement and drive compensation
CN113106381B (zh) * 2020-12-28 2023-05-02 上海锐力医疗器械有限公司 一种奥氏体不锈钢医用缝合针盐浴氮化配方及其加工方法
CN113897579A (zh) * 2021-09-30 2022-01-07 成都工具研究所有限公司 一种316l不锈钢工件低温qpq处理工艺

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1996269A (en) * 1930-06-07 1935-04-02 Degussa Method of case-hardening iron articles
US2248732A (en) * 1939-05-16 1941-07-08 Degussa Process for the hardening of steel
DE1007795B (de) * 1955-04-27 1957-05-09 Degussa Verfahren zum Aufkohlen von Eisen und Stahl und Salzgemisch
JPS5848026B2 (ja) * 1976-04-09 1983-10-26 芳夫 和仁 低温窒化法
DE3048607C2 (de) * 1980-12-23 1983-07-07 Goerig & Co GmbH & Co KG, 6800 Mannheim Cyanidfreies Verfahren zum Aufkohlen von Stahl und Zugabesalz zur Durchführung des Verfahrens
JPS60215756A (ja) 1984-01-27 1985-10-29 プロセダイン　コ−ポレイシヨン ステンレス鋼の硬化方法
CN85103190A (zh) * 1985-04-22 1986-01-10 云南工学院 金属表面强化盐浴热处理工艺
JPS62256957A (ja) * 1986-05-01 1987-11-09 Kazuto Takamura 低温塩浴軟窒化剤
DE69510719T2 (de) * 1994-04-18 1999-12-09 Daido Hoxan Inc., Sapporo Verfahren zur Aufkohlung von austenitischem Metall
US6093303A (en) * 1998-08-12 2000-07-25 Swagelok Company Low temperature case hardening processes
TW557330B (en) * 2000-11-29 2003-10-11 Parker Netsushori Kogyo Kk Improved salt bath nitrogenating method for corrosion-resistant iron material and iron units

Also Published As

Publication number Publication date
US7909943B2 (en) 2011-03-22
US20080099108A1 (en) 2008-05-01
BRPI0702568B1 (pt) 2015-10-13
DE102006026883B8 (de) 2007-10-04
ZA200704591B (en) 2008-08-27
PL1865088T3 (pl) 2010-01-29
MX2007006969A (es) 2008-10-30
ATE443163T1 (de) 2009-10-15
CN101235477A (zh) 2008-08-06
JP5101173B2 (ja) 2012-12-19
DE102006026883B3 (de) 2007-08-16
CN101235477B (zh) 2011-05-18
ES2331383T3 (es) 2009-12-30
EP1865088B1 (de) 2009-09-16
KR20070118008A (ko) 2007-12-13
CA2591244A1 (en) 2007-12-09
JP2007332459A (ja) 2007-12-27
DE502007001522D1 (de) 2009-10-29
EP1865088A1 (de) 2007-12-12

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Legal Events

Date Code Title Description
B06A Patent application procedure suspended [chapter 6.1 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 08/06/2007, OBSERVADAS AS CONDICOES LEGAIS.