IT7868350A0 - PROCEDURE AND DEVICE FOR CLEANING MOLTEN SALT BATH USED FOR TREATMENTS OF METAL PIECES - Google Patents

PROCEDURE AND DEVICE FOR CLEANING MOLTEN SALT BATH USED FOR TREATMENTS OF METAL PIECES

Info

Publication number
IT7868350A0
IT7868350A0 IT7868350A IT6835078A IT7868350A0 IT 7868350 A0 IT7868350 A0 IT 7868350A0 IT 7868350 A IT7868350 A IT 7868350A IT 6835078 A IT6835078 A IT 6835078A IT 7868350 A0 IT7868350 A0 IT 7868350A0
Authority
IT
Italy
Prior art keywords
treatments
procedure
molten salt
salt bath
metal pieces
Prior art date
Application number
IT7868350A
Other languages
Italian (it)
Original Assignee
Degussa
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 Degussa filed Critical Degussa
Publication of IT7868350A0 publication Critical patent/IT7868350A0/en

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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • B01D24/02—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration
    • B01D24/04—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration the filtering material being clamped between pervious fixed walls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/02—Loose filtering material, e.g. loose fibres
    • B01D39/06—Inorganic material, e.g. asbestos fibres, glass beads or fibres
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Filtration Of Liquid (AREA)
  • Filtering Materials (AREA)
IT7868350A 1977-07-09 1978-06-09 PROCEDURE AND DEVICE FOR CLEANING MOLTEN SALT BATH USED FOR TREATMENTS OF METAL PIECES IT7868350A0 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2731167A DE2731167C3 (en) 1977-07-09 1977-07-09 Use of inorganic fiber materials for cleaning salt baths and device for using these fiber materials

Publications (1)

Publication Number Publication Date
IT7868350A0 true IT7868350A0 (en) 1978-06-09

Family

ID=6013600

Family Applications (1)

Application Number Title Priority Date Filing Date
IT7868350A IT7868350A0 (en) 1977-07-09 1978-06-09 PROCEDURE AND DEVICE FOR CLEANING MOLTEN SALT BATH USED FOR TREATMENTS OF METAL PIECES

Country Status (6)

Country Link
JP (1) JPS5419266A (en)
CH (1) CH637425A5 (en)
DE (1) DE2731167C3 (en)
FR (1) FR2396579A1 (en)
GB (1) GB1598904A (en)
IT (1) IT7868350A0 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2525491B1 (en) * 1982-04-23 1988-04-29 Stephanois Rech Mec FILTER GROUP FOR SALT BATHS
DE3836939C1 (en) * 1988-10-29 1989-06-15 Degussa Ag, 6000 Frankfurt, De
DE4337374C2 (en) * 1992-11-09 1998-06-10 Honda Motor Co Ltd Device for desludging a molten salt
ATE186754T1 (en) * 1994-01-13 1999-12-15 Houghton Durferrit Gmbh FILTER UNIT AND DEVICE FOR DESILDING SALT BATHS

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB501176A (en) * 1937-02-05 1939-02-22 British Celanese Improvements in or relating to the filtration of fluids
DE740298C (en) * 1938-02-06 1943-10-16 Carl Radix Pulling the beginning of a wire through a lead bath
FR1019595A (en) * 1946-12-10 1953-01-23 Salt bath furnace more specially intended for the sudden cooling of steels
US2757425A (en) * 1952-11-18 1956-08-07 Aluminium Lab Ltd Apparatus and procedure for treatment of molten aluminum
DE1247361B (en) * 1963-10-02 1967-08-17 Degussa Device for desludging of molten salts, in particular nitriding balls

Also Published As

Publication number Publication date
FR2396579B1 (en) 1983-01-28
CH637425A5 (en) 1983-07-29
DE2731167A1 (en) 1979-01-18
DE2731167B2 (en) 1980-02-28
DE2731167C3 (en) 1980-12-04
FR2396579A1 (en) 1979-02-02
JPS5419266A (en) 1979-02-13
GB1598904A (en) 1981-09-23

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