DE3465207D1 - Additive for maintaining the working order of molten-salt baths for the treatment of metal pieces - Google Patents

Additive for maintaining the working order of molten-salt baths for the treatment of metal pieces

Info

Publication number
DE3465207D1
DE3465207D1 DE8484402401T DE3465207T DE3465207D1 DE 3465207 D1 DE3465207 D1 DE 3465207D1 DE 8484402401 T DE8484402401 T DE 8484402401T DE 3465207 T DE3465207 T DE 3465207T DE 3465207 D1 DE3465207 D1 DE 3465207D1
Authority
DE
Germany
Prior art keywords
molten
additive
maintaining
treatment
metal pieces
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
Application number
DE8484402401T
Other languages
German (de)
English (en)
Inventor
Bernard Grellet
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 DE3465207D1 publication Critical patent/DE3465207D1/de
Expired 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
    • C23C8/40—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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Cosmetics (AREA)
  • Glanulating (AREA)
  • Detergent Compositions (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Seasonings (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Manufacture And Refinement Of Metals (AREA)
DE8484402401T 1983-12-09 1984-11-26 Additive for maintaining the working order of molten-salt baths for the treatment of metal pieces Expired DE3465207D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8319781A FR2556367B1 (fr) 1983-12-09 1983-12-09 Charge d'apport destinee a assurer la maintenance de bains de sels fondus pour le traitement de pieces metalliques

Publications (1)

Publication Number Publication Date
DE3465207D1 true DE3465207D1 (en) 1987-09-10

Family

ID=9295052

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8484402401T Expired DE3465207D1 (en) 1983-12-09 1984-11-26 Additive for maintaining the working order of molten-salt baths for the treatment of metal pieces

Country Status (7)

Country Link
EP (1) EP0145576B1 (fr)
JP (1) JPS60141864A (fr)
BR (1) BR8406275A (fr)
DE (1) DE3465207D1 (fr)
ES (1) ES8702499A1 (fr)
FR (1) FR2556367B1 (fr)
IN (1) IN161219B (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4030279C1 (en) * 1990-09-25 1992-06-04 Goetz Dipl.-Chem. Dr. 5400 Koblenz De Baum Regenerating molten alkali metal cyanate - by continuous addn. of urea] or polymer or condensate that generates urea, feeding additive into containers in continuous conveyor

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1012625B (de) * 1955-06-10 1957-07-25 Houghton Chemie G M B H Verfahren zur Erzielung zeitweiliger Aufkohlungswirkung bei der Waermebehandlung vonStahl in cyanidfreien Salzschmelzen
FR2214760A2 (en) * 1973-01-23 1974-08-19 Ctre Rech Meca Hydromeca Surface treating ferrous metals - with molten salt bath contg carbonate, cyanate, lithium, potassium, and sodium ions
AR204533A1 (es) * 1973-06-20 1976-02-12 Stephanois Rech Mec Procedimiento de regeneracion de un bano de sales fundidas que contiene cianatos y carbonatos
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
DE2521550A1 (de) * 1975-05-15 1976-12-02 Daimler Benz Ag Mittel zum regenerieren von nitrierbaedern
DE2542519A1 (de) * 1975-09-24 1977-04-14 Daimler Benz Ag Regenerierungsmittel fuer salzschmelzen auf cyanatbasis
JPS5931861A (ja) * 1982-08-16 1984-02-21 Mitsui Toatsu Chem Inc 金属材料の窒化用塩浴の再生剤

Also Published As

Publication number Publication date
JPS6354067B2 (fr) 1988-10-26
FR2556367A1 (fr) 1985-06-14
ES8702499A1 (es) 1987-01-01
ES538372A0 (es) 1987-01-01
BR8406275A (pt) 1985-10-01
JPS60141864A (ja) 1985-07-26
FR2556367B1 (fr) 1986-09-19
IN161219B (fr) 1987-10-17
EP0145576B1 (fr) 1987-08-05
EP0145576A2 (fr) 1985-06-19
EP0145576A3 (en) 1985-07-10

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition