GB792589A - Method of manufacturing seamless metal tubing - Google Patents
Method of manufacturing seamless metal tubingInfo
- Publication number
- GB792589A GB792589A GB1559756A GB1559756A GB792589A GB 792589 A GB792589 A GB 792589A GB 1559756 A GB1559756 A GB 1559756A GB 1559756 A GB1559756 A GB 1559756A GB 792589 A GB792589 A GB 792589A
- Authority
- GB
- United Kingdom
- Prior art keywords
- molybdenum
- supports
- tube
- support
- stainless steel
- 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
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/01—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes on temporary substrates, e.g. substrates subsequently removed by etching
Landscapes
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Vapour Deposition (AREA)
Abstract
792,589. Coating with metals. GENERAL ELECTRIC CO. May 18, 1956, No. 15597/56. Class 82(2) [Also in Group XXII] A method of making a seamless tube of molybdenum, chromium, silicon, boron, tungsten, or rhenium comprises vapour depositing the metal from vapours of its halides on an elongated support and then selectively dissolving the support. As shown, applied to the formation of a molybdenum pipe, an evacuated chamber 1 heated by a resistance furnace 9 has electrodes 4 and 5 to which are attached tubular stainless steel supports 6, 7, electrically connected at their free ends. At the bottom of the chamber 1 is a mass 16 of fragments of molybdenum through which is passed chlorine gas from a supply of solid chlorine 15 in a tube 12 immersed in liquid nitrogen. The mass of molybdenum may be heated to 450‹C. and the supports to 1100‹C. Molybdenum is deposited on the stainless steel supports and when the desired thickness is obtained the supports are removed and the stainless steel dissolved in boiling sulphuric acid, leaving a tube of molybdenum. The supports may be of iron, nickel or tungsten and the chlorine may be supplied from a wellthrottled cylinder of the gas. Since the current must be increased to maintain a constant temperature of the support, the thickness of the deposited tube may be determined by measuring the voltage drop over the support, an example of the calculation being given.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1559756A GB792589A (en) | 1956-05-18 | 1956-05-18 | Method of manufacturing seamless metal tubing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1559756A GB792589A (en) | 1956-05-18 | 1956-05-18 | Method of manufacturing seamless metal tubing |
Publications (1)
Publication Number | Publication Date |
---|---|
GB792589A true GB792589A (en) | 1958-04-02 |
Family
ID=10061987
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1559756A Expired GB792589A (en) | 1956-05-18 | 1956-05-18 | Method of manufacturing seamless metal tubing |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB792589A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3121925A (en) * | 1960-08-16 | 1964-02-25 | Jr Harry A Toulmin | Method and apparatus for making honeycomb structures |
US3127641A (en) * | 1961-10-05 | 1964-04-07 | Gen Electric | Tungsten tube manufacture |
EP1018567A2 (en) * | 1999-01-06 | 2000-07-12 | Cvd Incorporated | Method of producing free standing articles |
-
1956
- 1956-05-18 GB GB1559756A patent/GB792589A/en not_active Expired
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3121925A (en) * | 1960-08-16 | 1964-02-25 | Jr Harry A Toulmin | Method and apparatus for making honeycomb structures |
US3127641A (en) * | 1961-10-05 | 1964-04-07 | Gen Electric | Tungsten tube manufacture |
EP1018567A2 (en) * | 1999-01-06 | 2000-07-12 | Cvd Incorporated | Method of producing free standing articles |
JP2000199063A (en) * | 1999-01-06 | 2000-07-18 | Cvd Inc | Production of near net shape free standing article by chemical vapor deposition |
EP1018567A3 (en) * | 1999-01-06 | 2000-09-20 | Cvd Incorporated | Method of producing free standing articles |
US6464912B1 (en) | 1999-01-06 | 2002-10-15 | Cvd, Incorporated | Method for producing near-net shape free standing articles by chemical vapor deposition |
US6648977B2 (en) | 1999-01-06 | 2003-11-18 | Shipley Company, L.L.C. | Method of producing near-net shape free standing articles by chemical vapor deposition |
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