GB623041A - Improvements in or relating to the manufacture of metal articles - Google Patents
Improvements in or relating to the manufacture of metal articlesInfo
- Publication number
- GB623041A GB623041A GB2625446A GB2625446A GB623041A GB 623041 A GB623041 A GB 623041A GB 2625446 A GB2625446 A GB 2625446A GB 2625446 A GB2625446 A GB 2625446A GB 623041 A GB623041 A GB 623041A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pattern
- iron
- chromium
- steel
- hollow
- 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
- C23C10/00—Solid state diffusion of only metal elements or silicon into metallic material surfaces
- C23C10/60—After-treatment
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- ing And Chemical Polishing (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
623,041. Making hollow-ware and turbine blades. BIRMINGHAM SMALL ARMS CO., Ltd., and OLIVER, D. A. Aug. 31, 1946, No. 26254. [Class 83 (ii)] A method of making a hollow metal article comprises the interdiffusion of a metal with the surface of an iron or steel former and then dissolving the former to leave an article consisting of the layer resulting from the interdiffusion process. The invention is described as applied to the manufacture of a hollow blade for a gas turbine. A solid pattern of low carbon steel is heated to between 900‹ and 1100‹ C. in the presence of gaseous chromous chloride and hydrogen so that an interchange of chromium and iron atoms takes place with a consequent diffusion of chromitun into the surface of the steel pattern. After cooling, the surface layer of iron-chromium alloy is drilled and the pattern is immersed in nitric acid which dissolves the central steel portion leaving the iron-chromium shell. Instead of chromium, the surface of the iron may be alloyed with titanium, zirconium, vanadium, niobium, tantalum, molybdenum, tungsten, manganese, cobalt or nickel by treating the pattern with the halides of these elements. If a blade with a solid base is required, the pattern may be removed from the acid before the whole of the steel has been dissolved. The hollow article produced may be subjected to a further interdiffusion process to enrich the inner surface with chromium or other suitable metal and may in addition be electroplated. Specifications 516,260, 572,703 and 574,737 are referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2625446A GB623041A (en) | 1946-08-31 | 1946-08-31 | Improvements in or relating to the manufacture of metal articles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2625446A GB623041A (en) | 1946-08-31 | 1946-08-31 | Improvements in or relating to the manufacture of metal articles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB623041A true GB623041A (en) | 1949-05-11 |
Family
ID=10240752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2625446A Expired GB623041A (en) | 1946-08-31 | 1946-08-31 | Improvements in or relating to the manufacture of metal articles |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB623041A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0232881A2 (en) * | 1986-02-10 | 1987-08-19 | Nippon Steel Corporation | Method for producing a metallic substrate used for automobile exhaust gas purifying device |
| RU2450084C1 (en) * | 2010-08-25 | 2012-05-10 | Федеральное государственное образовательное учреждение высшего профессионального образования "Тюменская государственная сельскохозяйственная академия" | Electrodiffusion thermal treatment of hollow part from steel |
| US8740567B2 (en) | 2010-07-26 | 2014-06-03 | United Technologies Corporation | Reverse cavity blade for a gas turbine engine |
-
1946
- 1946-08-31 GB GB2625446A patent/GB623041A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0232881A2 (en) * | 1986-02-10 | 1987-08-19 | Nippon Steel Corporation | Method for producing a metallic substrate used for automobile exhaust gas purifying device |
| EP0232881A3 (en) * | 1986-02-10 | 1988-03-23 | Nippon Steel Corporation | Method for producing a metallic substrate used for automobile exhaust gas purifying device |
| US8740567B2 (en) | 2010-07-26 | 2014-06-03 | United Technologies Corporation | Reverse cavity blade for a gas turbine engine |
| RU2450084C1 (en) * | 2010-08-25 | 2012-05-10 | Федеральное государственное образовательное учреждение высшего профессионального образования "Тюменская государственная сельскохозяйственная академия" | Electrodiffusion thermal treatment of hollow part from steel |
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