GB480166A - Improvements in the gaseous cementation of steel - Google Patents
Improvements in the gaseous cementation of steelInfo
- Publication number
- GB480166A GB480166A GB2203136A GB2203136A GB480166A GB 480166 A GB480166 A GB 480166A GB 2203136 A GB2203136 A GB 2203136A GB 2203136 A GB2203136 A GB 2203136A GB 480166 A GB480166 A GB 480166A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gas
- cementation
- steel
- hydrogen
- gaseous
- 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
- C23C8/08—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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Catalysts (AREA)
Abstract
Gas for the cementation of steel is produced by removing substantially the whole of the carbon dioxide and water vapour from producer gas, water gas or other gas containing carbon monoxide and hydrogen, adding to the gas so produced olefinic products, and finally passing the mixture over a suitable catalyst, such as nickel and at a temperature, e.g. 150-200 DEG C., such that the olefines are transformed into saturated hydrocarbons and low enough to avoid reaction between the carbon monoxide and hydrogen. Specification 480,103 is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR808083T | 1936-07-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB480166A true GB480166A (en) | 1938-02-10 |
Family
ID=9252765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2203136A Expired GB480166A (en) | 1936-07-10 | 1936-08-10 | Improvements in the gaseous cementation of steel |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR808083A (en) |
| GB (1) | GB480166A (en) |
-
1936
- 1936-07-10 FR FR808083D patent/FR808083A/en not_active Expired
- 1936-08-10 GB GB2203136A patent/GB480166A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR808083A (en) | 1937-01-28 |
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