ES2109781T3 - Composicion de baños de sales a base de nitratos alcalinos para oxidar metales ferreos y asi mejorar su resistencia a la corrosion. - Google Patents

Composicion de baños de sales a base de nitratos alcalinos para oxidar metales ferreos y asi mejorar su resistencia a la corrosion.

Info

Publication number
ES2109781T3
ES2109781T3 ES95400204T ES95400204T ES2109781T3 ES 2109781 T3 ES2109781 T3 ES 2109781T3 ES 95400204 T ES95400204 T ES 95400204T ES 95400204 T ES95400204 T ES 95400204T ES 2109781 T3 ES2109781 T3 ES 2109781T3
Authority
ES
Spain
Prior art keywords
corrosion resistance
composition
improve
salt baths
oxidize iron
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
ES95400204T
Other languages
English (en)
Inventor
Jean-Paul Terrat
Philippe Maurin-Perrier
Daniel Viviani
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Centre Stephanois de Recherches Mecaniques Hydromecanique et Frottement SA
Original Assignee
Centre Stephanois de Recherches Mecaniques Hydromecanique et Frottement SA
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 Centre Stephanois de Recherches Mecaniques Hydromecanique et Frottement SA filed Critical Centre Stephanois de Recherches Mecaniques Hydromecanique et Frottement SA
Application granted granted Critical
Publication of ES2109781T3 publication Critical patent/ES2109781T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • C23C8/80—After-treatment
    • 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
    • C23C22/00—Chemical 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
    • C23C22/70—Chemical 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 using melts
    • C23C22/72—Treatment of iron or alloys based thereon

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Treatment Of Metals (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Compounds Of Iron (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Chemically Coating (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Cosmetics (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
  • Food Preservation Except Freezing, Refrigeration, And Drying (AREA)

Abstract

LA COMPOSICION DE BAÑO DE SALES SE PREVE PARA FORMAR EN LA SUPERFICIE DE PIEZAS DE METAL FERROSO, PARTICULARMENTE PREVIAMENTE NITRURADAS, UNA CAPA DE MAGNETITA FE3O4, PARA PROTEGER CONTRA LA CORROSION EL HIERRO SUBYACENTE SIENDO LA CAPA ESTANCA Y DE CRISTALIZACION ORDENADA, LO QUE SE TRADUCE EN UNA COLORACION DE UN NEGRO PROFUNDO Y UN POTENCIAL DE CORROSION SUPERIOR A 1.000 MV. LA COMPOSICION COMPRENDE AL MENOS ANIONES DE NITRATO, CATIONES DE SODIO Y LITIO, REPRESENTANDO ESTOS ULTIMOS 0,1 A 55 EN PESO DEL BAÑO, Y MEJOR DE 0,5 A 1,75%. LAS COMPOSICIONES PREFERIDAS COMPRENDE CATIONES, SODIO, POTASIO Y LITIO, Y ANIONES DE NITRATO, CARBONATO CON LOS LIMITES EN PORCENTAJE 8,5 INFERIOR O IGUAL A CO32- INFERIOR O IGUALA 26, 15 INFERIOR O IGUALA NO3 INFERIOR O IGUAL A 41,5, 4,7 INFERIOR O IGUALA OH INFERIOR O IGUAL A 21,5. ADEMAS DE LAS CUALIDADES EXCEPCIONALES DE FIABILIDAD DE TRATAMIENTO DE OXIDACION, LA PRESENCIA DE LITIO ASOCIADO AL SODIO Y AL POTASIO Y A LOS ANIONES DE NITRATO O CARBONATO DISMINUYE LA IMPORTANCIA DE LA FORMACION EN EL BAÑO DE LODOS CARBONATADOS, PROBABLEMENTE EN RAZON DE LA CONSTITUCION DE MEZCLAS TERNARIAS DE NITRATO O DE CARBONATO DE PUNTO DE FUSION BAJO.
ES95400204T 1994-02-09 1995-02-01 Composicion de baños de sales a base de nitratos alcalinos para oxidar metales ferreos y asi mejorar su resistencia a la corrosion. Expired - Lifetime ES2109781T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9401448A FR2715943B1 (fr) 1994-02-09 1994-02-09 Composition de bains de sels à base de nitrates alcalins pour oxyder du métal ferreux et ainsi améliorer sa résistance à la corrosion.

Publications (1)

Publication Number Publication Date
ES2109781T3 true ES2109781T3 (es) 1998-01-16

Family

ID=9459909

Family Applications (1)

Application Number Title Priority Date Filing Date
ES95400204T Expired - Lifetime ES2109781T3 (es) 1994-02-09 1995-02-01 Composicion de baños de sales a base de nitratos alcalinos para oxidar metales ferreos y asi mejorar su resistencia a la corrosion.

Country Status (13)

Country Link
US (1) US5514226A (es)
EP (1) EP0667401B1 (es)
JP (1) JP3056965B2 (es)
KR (1) KR100295544B1 (es)
CN (1) CN1058061C (es)
AT (1) ATE160593T1 (es)
CA (1) CA2141710C (es)
DE (1) DE69501084T2 (es)
ES (1) ES2109781T3 (es)
FR (1) FR2715943B1 (es)
MY (1) MY111776A (es)
PL (1) PL177675B1 (es)
TW (1) TW303392B (es)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2731232B1 (fr) * 1995-03-01 1997-05-16 Stephanois Rech Procede de traitement de surfaces ferreuses soumises a des sollicitations elevees de frottement
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
JP3748425B2 (ja) * 2002-09-04 2006-02-22 パーカー熱処理工業株式会社 耐食性を強化された金属部材の塩浴窒化方法
JP2005126752A (ja) * 2003-10-22 2005-05-19 Nippon Parkerizing Co Ltd 表面硬度と高耐食性が付与された自動車用足回り部材
US7229565B2 (en) * 2004-04-05 2007-06-12 Sikorsky Aircraft Corporation Chemically assisted surface finishing process
DE102007060085B4 (de) * 2007-12-13 2012-03-15 Durferrit Gmbh Verfahren zur Erzeugung von korrosionsbeständigen Oberflächen nitrierter oder nitrocarburierter Bauteile aus Stahl sowie nitrocarburierte oder nitrierte Bauteile aus Stahl mit oxidierten Oberflächen
JP5420354B2 (ja) * 2009-09-08 2014-02-19 日本パーカライジング株式会社 クロムフリー黒色表面処理鉄系金属材料及びその製造方法
IT1403931B1 (it) * 2011-02-11 2013-11-08 Eni Spa Miscela di sali nitrati inorganici.
US9133382B2 (en) * 2012-04-10 2015-09-15 Basf Se Nitrate salt compositions comprising alkali metal carbonate and their use as heat transfer medium or heat storage medium
US10011754B2 (en) 2013-01-23 2018-07-03 Basf Se Method of improving nitrate salt compositions by means of nitric acid for use as heat transfer medium or heat storage medium
CN103361596B (zh) * 2013-08-08 2015-08-19 成都伍田机械技术有限责任公司 表面改性处理的氧化盐

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2639244A (en) * 1950-07-15 1953-05-19 Remington Arms Co Inc Metal finishing method
US3847685A (en) * 1970-02-11 1974-11-12 Texas Instruments Inc Oxide coated metal discs and method of making the same
BE795015A (fr) * 1972-02-18 1973-05-29 Stephanois Rech Mec Procede de traitement de pieces metalliques ferreuses pour augmenter leur resistance a l'usure et au grippage
FR2171993A1 (en) * 1972-02-18 1973-09-28 Stephanois Rech Surface treating ferrous metals - with molten salt bath contg carbonate, cyanate, lithium, potassium, and sodium ions
FR2271307A1 (en) * 1974-05-17 1975-12-12 Stephanois Rech Meca Hyd Centr Stabilising fused cyanate heat treatment baths - by introducing sulphur and carbonyl cpds. to reduce cyanide formation
ES437450A1 (es) * 1974-05-17 1976-12-01 Stephanois Rech Mec Un procedimiento para mantener en valores muy bajos la pro-porcion de cianuros en los banos de sales fundidas.
DE2934113C2 (de) * 1979-08-23 1985-05-09 Degussa Ag, 6000 Frankfurt Verfahren zur Erhöhung der Korrosionsbeständigkeit nitrierter Bauteile aus Eisenwerkstoffen
JPS57152461A (en) * 1981-03-16 1982-09-20 Parker Netsushiyori Kogyo Kk Surface treatment of iron member for increasing corrosion and wear resistance
FR2525637B1 (fr) * 1982-04-23 1986-05-09 Stephanois Rech Mec Procede de traitement de pieces en metal ferreux en bain de sels oxydant, pour ameliorer leur resistance a la corrosion, les pieces contenant du soufre
US4678546A (en) * 1985-03-27 1987-07-07 North China Research Institute Of Electro-Optics Process for providing lithium tantalum oxide coated tantalum articles with improved wear resistance

Also Published As

Publication number Publication date
US5514226A (en) 1996-05-07
JP3056965B2 (ja) 2000-06-26
DE69501084D1 (de) 1998-01-08
EP0667401A1 (fr) 1995-08-16
PL307080A1 (en) 1995-08-21
TW303392B (es) 1997-04-21
KR950032692A (ko) 1995-12-22
KR100295544B1 (ko) 2001-09-17
DE69501084T2 (de) 1998-07-02
CA2141710C (fr) 2000-09-05
PL177675B1 (pl) 1999-12-31
FR2715943B1 (fr) 1996-05-15
JPH07224388A (ja) 1995-08-22
MY111776A (en) 2000-12-30
CN1058061C (zh) 2000-11-01
CA2141710A1 (fr) 1995-08-10
FR2715943A1 (fr) 1995-08-11
EP0667401B1 (fr) 1997-11-26
ATE160593T1 (de) 1997-12-15
CN1112964A (zh) 1995-12-06

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