GB1312982A - Salt bath carburising process - Google Patents
Salt bath carburising processInfo
- Publication number
- GB1312982A GB1312982A GB2053170A GB2053170A GB1312982A GB 1312982 A GB1312982 A GB 1312982A GB 2053170 A GB2053170 A GB 2053170A GB 2053170 A GB2053170 A GB 2053170A GB 1312982 A GB1312982 A GB 1312982A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bath
- salt
- activator
- april
- replenishing
- 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
- 150000003839 salts Chemical class 0.000 title abstract 4
- 238000000034 method Methods 0.000 title abstract 2
- 239000012190 activator Substances 0.000 abstract 3
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 abstract 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 abstract 1
- 229910001617 alkaline earth metal chloride Inorganic materials 0.000 abstract 1
- 229910052799 carbon Inorganic materials 0.000 abstract 1
- 238000005255 carburizing Methods 0.000 abstract 1
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 239000011833 salt mixture Substances 0.000 abstract 1
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
- 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)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Cosmetics (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
- Chemically Coating (AREA)
Abstract
1312982 Salt-bath carburizing DEUTSCHE GOLD-UND SILBER-SCHEIDEANSTALT 29 April 1970 [29 April 1969] 20531/70 Heading C7U In a salt-bath carburising process using a bath of molten cyanide containing as activator an alkaline earth metal chloride and a third salt which may be a carbonate, the peripheral carbon content of the carburised articles in controlled by replenishing the bath with a fused salt mixture whose activator content is identical with that of the initial bath. The replenishing salt may consist only of cyanide and activator. A fall in level of the bath caused by drag-out is compensated by adding a further quantity of the initial peparation salt.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US82033769A | 1969-04-29 | 1969-04-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1312982A true GB1312982A (en) | 1973-04-11 |
Family
ID=25230518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2053170A Expired GB1312982A (en) | 1969-04-29 | 1970-04-29 | Salt bath carburising process |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US3635768A (en) |
| JP (1) | JPS5440493B1 (en) |
| AT (1) | AT300874B (en) |
| CA (1) | CA928621A (en) |
| CH (1) | CH534219A (en) |
| DE (1) | DE2018711C3 (en) |
| ES (1) | ES379136A1 (en) |
| FR (1) | FR2040405A1 (en) |
| GB (1) | GB1312982A (en) |
| SE (1) | SE358421B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3876512A (en) * | 1973-09-10 | 1975-04-08 | Nippon Furnace Koga Kaisha Ltd | Electrolytic carburizing process using a carbonate electrolyte |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1970852A (en) * | 1931-08-24 | 1934-08-21 | Du Pont | Process and composition for treating metals |
| US2819992A (en) * | 1955-04-27 | 1958-01-14 | Degussa | Carburization of iron and steel |
| GB942768A (en) * | 1960-11-14 | 1963-11-27 | Ici Ltd | Improvements in or relating to fused salt baths for carburising iron or steel |
-
1969
- 1969-04-29 US US820337A patent/US3635768A/en not_active Expired - Lifetime
-
1970
- 1970-04-17 AT AT350670A patent/AT300874B/en active
- 1970-04-18 DE DE2018711A patent/DE2018711C3/en not_active Expired
- 1970-04-22 CH CH598670A patent/CH534219A/en not_active IP Right Cessation
- 1970-04-28 SE SE05889/70A patent/SE358421B/xx unknown
- 1970-04-28 ES ES379136A patent/ES379136A1/en not_active Expired
- 1970-04-29 FR FR7015745A patent/FR2040405A1/fr active Pending
- 1970-04-29 CA CA081411A patent/CA928621A/en not_active Expired
- 1970-04-29 GB GB2053170A patent/GB1312982A/en not_active Expired
- 1970-04-30 JP JP3713570A patent/JPS5440493B1/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FR2040405A1 (en) | 1971-01-22 |
| US3635768A (en) | 1972-01-18 |
| JPS5440493B1 (en) | 1979-12-04 |
| DE2018711B2 (en) | 1973-10-25 |
| DE2018711A1 (en) | 1970-11-26 |
| DE2018711C3 (en) | 1974-06-06 |
| CA928621A (en) | 1973-06-19 |
| AT300874B (en) | 1972-08-10 |
| SE358421B (en) | 1973-07-30 |
| CH534219A (en) | 1973-02-28 |
| ES379136A1 (en) | 1972-09-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PE20 | Patent expired after termination of 20 years |