GB667175A - A process of manufacturing articles with a hard surface - Google Patents
A process of manufacturing articles with a hard surfaceInfo
- Publication number
- GB667175A GB667175A GB1492/49A GB149249A GB667175A GB 667175 A GB667175 A GB 667175A GB 1492/49 A GB1492/49 A GB 1492/49A GB 149249 A GB149249 A GB 149249A GB 667175 A GB667175 A GB 667175A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sintered
- manufacturing articles
- pressed
- mixed
- metal
- 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
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/05—Mixtures of metal powder with non-metallic powder
- C22C1/051—Making hard metals based on borides, carbides, nitrides, oxides or silicides; Preparation of the powder mixture used as the starting material therefor
- C22C1/053—Making hard metals based on borides, carbides, nitrides, oxides or silicides; Preparation of the powder mixture used as the starting material therefor with in situ formation of hard compounds
- C22C1/056—Making hard metals based on borides, carbides, nitrides, oxides or silicides; Preparation of the powder mixture used as the starting material therefor with in situ formation of hard compounds using gas
-
- 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
- C23C30/00—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
- C23C30/005—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process on hard metal substrates
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Powder Metallurgy (AREA)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
Abstract
In a process of manufacturing articles the surface of which is formed of a carbide of a metal of sub-group A of the 4th, 5th and 6th groups of the Periodic Table and of a metal of the iron group, powders of the two metals are mixed, pressed, moulded and sintered and finally subjected to surface carburizing. Tungsten powder may be mixed with 3-20 per cent of cobalt powder and the mixture moulded, pressed, and sintered. The sintered body may then be machined and refined by quenching from 1400-1500 DEG C and tempering at 600-700 DEG C after which is carburized at 1200-1450 DEG C in an atmosphere of city gas or hydrogen charged with a hydrocarbon vapour, e.g. benzol.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CS667175X | 1948-01-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB667175A true GB667175A (en) | 1952-02-27 |
Family
ID=5454542
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1492/49A Expired GB667175A (en) | 1948-01-23 | 1949-01-19 | A process of manufacturing articles with a hard surface |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB667175A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2213125A1 (en) * | 1973-01-05 | 1974-08-02 | Schild Sa A | |
EP0246211A2 (en) * | 1986-05-12 | 1987-11-19 | Santrade Limited | Sintered body for chip forming machining |
EP0247985A2 (en) * | 1986-05-12 | 1987-12-02 | Santrade Ltd. | Cemented carbide with a binder phase gradient and method of making the same |
BE1013524A5 (en) * | 1998-08-21 | 2002-03-05 | Baker Hughes Inc | Drill steel tooth with a very thick layer of charging. |
-
1949
- 1949-01-19 GB GB1492/49A patent/GB667175A/en not_active Expired
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2213125A1 (en) * | 1973-01-05 | 1974-08-02 | Schild Sa A | |
EP0246211A2 (en) * | 1986-05-12 | 1987-11-19 | Santrade Limited | Sintered body for chip forming machining |
EP0247985A2 (en) * | 1986-05-12 | 1987-12-02 | Santrade Ltd. | Cemented carbide with a binder phase gradient and method of making the same |
EP0247985A3 (en) * | 1986-05-12 | 1988-01-27 | Santrade Ltd. | Cemented carbide with a binder phase gradient and method of making the same |
EP0246211A3 (en) * | 1986-05-12 | 1988-02-03 | Santrade Limited | Sintered body for chip forming machining |
BE1013524A5 (en) * | 1998-08-21 | 2002-03-05 | Baker Hughes Inc | Drill steel tooth with a very thick layer of charging. |
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