GB898465A - Improvements in and relating to atmospheres for the heat treatment of metals - Google Patents
Improvements in and relating to atmospheres for the heat treatment of metalsInfo
- Publication number
- GB898465A GB898465A GB40910/58A GB4091058A GB898465A GB 898465 A GB898465 A GB 898465A GB 40910/58 A GB40910/58 A GB 40910/58A GB 4091058 A GB4091058 A GB 4091058A GB 898465 A GB898465 A GB 898465A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gas
- valve
- towns
- methyl alcohol
- atmospheres
- 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
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
- C23C8/06—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 gases
- C23C8/28—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 gases more than one element being applied in one step
- C23C8/30—Carbo-nitriding
- C23C8/32—Carbo-nitriding of ferrous surfaces
-
- 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
- C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
- C21D1/76—Adjusting the composition of the atmosphere
-
- 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
- C23C8/06—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 gases
- C23C8/08—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 gases only one element being applied
- C23C8/20—Carburising
- C23C8/22—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
- C23C8/44—Carburising
- C23C8/46—Carburising 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)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Furnace Details (AREA)
Abstract
898,465. Furnace atmospheres. REGIE NATIONALE DES USINES RENAULT. Dec. 18, 1958 [Dec. 26, 1957; Nov. 24, 1958], No. 40910/58. Class 51 (2). Apparatus for producing a case-hardening gas in a furnace 2 comprises a vaporizer 1 and a heater 15 supplied with towns gas through a pipe 6, flowmeter 14 and valve 3, and with a mixture of towns gas and methyl alcohol vapour through a pipe 7, flowmeter 13 and valve 4. Part of the towns gas passing through a valve 5 is diverted by a branch 12 through a reservoir 8 of methyl alcohol in which the level is controlled by a float 11 actuating a relay 10 controlling a pump 9. Ammonia can be added to the heated gaseous mixture, the methyl alcohol can be replaced by ethyl alcohol, acetone or iso-butyl alcohol. The towns gas may-be replaced by natural gas.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR754680 | 1957-12-26 | ||
FR779939A FR74552E (en) | 1957-12-26 | 1958-11-24 | Atmospheric gas for carburizing, carbonitriding or protecting steel parts |
Publications (1)
Publication Number | Publication Date |
---|---|
GB898465A true GB898465A (en) | 1962-06-06 |
Family
ID=26183301
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB40910/58A Expired GB898465A (en) | 1957-12-26 | 1958-12-18 | Improvements in and relating to atmospheres for the heat treatment of metals |
Country Status (3)
Country | Link |
---|---|
FR (2) | FR1189033A (en) |
GB (1) | GB898465A (en) |
OA (1) | OA01449A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2450878A1 (en) * | 1979-03-05 | 1980-10-03 | Air Liquide | INSTALLATION GENERATING AN ATMOSPHERE FOR HEAT TREATING METALS |
-
1957
- 1957-12-26 FR FR1189033D patent/FR1189033A/en not_active Expired
-
1958
- 1958-11-24 FR FR779939A patent/FR74552E/en not_active Expired
- 1958-12-18 GB GB40910/58A patent/GB898465A/en not_active Expired
-
1964
- 1964-12-31 OA OA51983A patent/OA01449A/en unknown
Also Published As
Publication number | Publication date |
---|---|
FR1189033A (en) | 1959-09-28 |
FR74552E (en) | 1960-12-19 |
OA01449A (en) | 1969-07-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR2320229A1 (en) | Double envelope construction airship - has separate hot air and light gas volumes with heater delivering air to distributor | |
GB898465A (en) | Improvements in and relating to atmospheres for the heat treatment of metals | |
GB783943A (en) | Improvements relating to fluid mixing apparatus | |
GB847848A (en) | Treatment of ferrous material | |
GB817519A (en) | Improvements in or relating to apparatus for preparing an atmosphere for the heat treatment of metals | |
JPS5238288A (en) | Gas change over device | |
ES278283A1 (en) | Procedure, with its producer installation, of cooking partially combustible products (Machine-translation by Google Translate, not legally binding) | |
ES267103A1 (en) | System for the use of natural, butane and propane gas in heat and oxycorte torches (Machine-translation by Google Translate, not legally binding) | |
GB1349799A (en) | Gas generator | |
JPS57211544A (en) | Gas chromatograph | |
GB1048448A (en) | Improvements in or relating to gas turbine plants | |
ES267928A1 (en) | Butane gas burner, coupled to heating boilers (Machine-translation by Google Translate, not legally binding) | |
GB721259A (en) | Improved means for starting up a vapour burner for liquid fuel | |
GB910364A (en) | Improvements in and relating to starting means for pressure vaporiser burners fed with liquid fuel | |
JPS5612920A (en) | Control of combustion | |
GB1192086A (en) | Improvements in Sizing and Finishing Apparatus for Sizing and Finishing Articles of Clothing | |
ES71273U (en) | Stove with catalytic sieve for butane (Machine-translation by Google Translate, not legally binding) | |
GB770514A (en) | Improvements in, or relating to, heating apparatus | |
JPS54127038A (en) | Temperature control of heating furnace | |
GB604820A (en) | Improvements in gas burners primarily for furnaces | |
GB190908940A (en) | Improvements in Apparatus for Making a Combustible Heating and Illuminating Gas. | |
ES57404U (en) | Blast or metallizing gun (Machine-translation by Google Translate, not legally binding) | |
GB534012A (en) | Improvements in furnaces or combustion chambers for the heat treatment of metals andalloys | |
GB985086A (en) | Improvements in or relating to water heaters | |
ES280282A2 (en) | Improvements in the manufacture of appliances intended for frequency and more particularly in the middle of the cooling of them (Machine-translation by Google Translate, not legally binding) |