GB1223952A - Method of carburising steels in cyanide-free fused salt baths - Google Patents
Method of carburising steels in cyanide-free fused salt bathsInfo
- Publication number
- GB1223952A GB1223952A GB4095068A GB4095068A GB1223952A GB 1223952 A GB1223952 A GB 1223952A GB 4095068 A GB4095068 A GB 4095068A GB 4095068 A GB4095068 A GB 4095068A GB 1223952 A GB1223952 A GB 1223952A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bath
- cyanide
- silicon
- carburising
- steels
- 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
- C23C8/40—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)
- Carbon And Carbon Compounds (AREA)
Abstract
1,223,952. Carburizing steel. H€RTOLWERK VEB. Aug.27, 1968, No.40950/68. Heading C7U. Steel is carburized in a cyanide - free bath to which is added elemental carbon, silicon carbide, and elemental silicon or a silicon alloy. The bath may be formed from chlorides and carbonates of the alkali and alkaline earth metals, and silicon carbide, alkali carbonate and silicon or a silicon alloy may be added together to the bath in powder or pressed form-carbon, preferably as flake graphite, may be added to the bath together with, or separately from the other additives. The bath is operated at 750‹ to 1200‹C., preferably 900‹ to 1000‹ C.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4095068A GB1223952A (en) | 1968-08-27 | 1968-08-27 | Method of carburising steels in cyanide-free fused salt baths |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4095068A GB1223952A (en) | 1968-08-27 | 1968-08-27 | Method of carburising steels in cyanide-free fused salt baths |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1223952A true GB1223952A (en) | 1971-03-03 |
Family
ID=10417405
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4095068A Expired GB1223952A (en) | 1968-08-27 | 1968-08-27 | Method of carburising steels in cyanide-free fused salt baths |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1223952A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1982002905A1 (en) * | 1981-02-18 | 1982-09-02 | Kerridge David Henry | Fused salt bath composition |
EP0088526A1 (en) * | 1982-02-23 | 1983-09-14 | National Research Development Corporation | Fused salt bath composition |
-
1968
- 1968-08-27 GB GB4095068A patent/GB1223952A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1982002905A1 (en) * | 1981-02-18 | 1982-09-02 | Kerridge David Henry | Fused salt bath composition |
EP0088526A1 (en) * | 1982-02-23 | 1983-09-14 | National Research Development Corporation | Fused salt bath composition |
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