EP0084171A1 - Procédé de fabrication d'un câble électrique à isolant minéral comprimé et gaine en titane - Google Patents
Procédé de fabrication d'un câble électrique à isolant minéral comprimé et gaine en titane Download PDFInfo
- Publication number
- EP0084171A1 EP0084171A1 EP82112053A EP82112053A EP0084171A1 EP 0084171 A1 EP0084171 A1 EP 0084171A1 EP 82112053 A EP82112053 A EP 82112053A EP 82112053 A EP82112053 A EP 82112053A EP 0084171 A1 EP0084171 A1 EP 0084171A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- titanium
- preform
- elongation
- annealing
- carried out
- 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.)
- Withdrawn
Links
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 title claims abstract description 18
- 239000010936 titanium Substances 0.000 title claims abstract description 17
- 229910052719 titanium Inorganic materials 0.000 title claims abstract description 17
- 229910052500 inorganic mineral Inorganic materials 0.000 title claims abstract description 7
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 7
- 239000011707 mineral Substances 0.000 title claims abstract description 7
- 238000009413 insulation Methods 0.000 title abstract description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000000137 annealing Methods 0.000 claims abstract description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000004020 conductor Substances 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000001257 hydrogen Substances 0.000 claims abstract description 5
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 5
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims abstract description 5
- 229910052742 iron Inorganic materials 0.000 claims abstract description 5
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 5
- 239000001301 oxygen Substances 0.000 claims abstract description 5
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 5
- 238000005096 rolling process Methods 0.000 claims abstract description 5
- 239000007789 gas Substances 0.000 claims abstract description 3
- 239000012212 insulator Substances 0.000 claims description 5
- 238000010583 slow cooling Methods 0.000 claims description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000000395 magnesium oxide Substances 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- BIJOYKCOMBZXAE-UHFFFAOYSA-N chromium iron nickel Chemical compound [Cr].[Fe].[Ni] BIJOYKCOMBZXAE-UHFFFAOYSA-N 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910001055 inconels 600 Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/0006—Apparatus or processes specially adapted for manufacturing conductors or cables for reducing the size of conductors or cables
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/004—Apparatus or processes specially adapted for manufacturing conductors or cables for manufacturing rigid-tube cables
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S72/00—Metal deforming
- Y10S72/70—Deforming specified alloys or uncommon metal or bimetallic work
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49117—Conductor or circuit manufacturing
Definitions
- the present invention relates to a method for manufacturing an electric cable with compressed mineral insulation, with a sheath and at least one internal conductor made of titanium, by preparing a preform with a diameter much greater than that of the cable, then elongation of the preform by successive hammering and / or rolling operations, separated by annealing.
- the object of the present invention is to overcome this difficulty, and to provide an electrical cable with compressed mineral insulator and sheath and internal conductor (or internal conductors) made of titanium, with very good mechanical qualities and with a state and appearance of satisfactory surface.
- the method according to the invention is characterized in that one starts from a quality of titanium containing at most 0.03% nitrogen, 0.25% oxygen, 0.015% hydrogen, 0.10% of carbon and 0.30% of iron, with a tensile strength at most equal to 5.40 N / mm 2 and an elongation at break at least equal to 22%, and in that one performs the annealing operations under a rare gas atmosphere at a temperature between 600 ° and 640 ° C.
- the grade of titanium to be used by the preform is commercially available under the designation "Grade 2". Even better quality, meeting the more stringent specification indicated above, is known as “Grade 1", but still difficult to obtain in industrial quantities.
- the annealed preform is subjected to a hammering elongation pass which reduces its diameter to 10.8mm (elongation of approximately 35%), which is followed by the same annealing for 15 minutes at 620 ° C. and a 15 minutes ambient cooling.
- magnesia in particular alumina
- the invention is particularly applicable to the manufacture of cables for measuring neutron fluxes under radiation, irradiated titanium decontaminating twice as quickly as the metals used previously, stainless steel at 200 parts per million of carbon, 18% of chromium and 10% of nickel, known under the designations 22CN 18-10 or AISI 304 L, and the nickel-chromium-iron alloy with 70% of nickel known under the designation "Inconel 600".
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Insulated Conductors (AREA)
- Superconductors And Manufacturing Methods Therefor (AREA)
- Conductive Materials (AREA)
- Processes Specially Adapted For Manufacturing Cables (AREA)
- Manufacturing Of Electric Cables (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8200176 | 1982-01-08 | ||
| FR8200176A FR2519796A1 (fr) | 1982-01-08 | 1982-01-08 | Procede de fabrication d'un cable electrique a isolant mineral comprime et gaine en titane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP0084171A1 true EP0084171A1 (fr) | 1983-07-27 |
Family
ID=9269788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP82112053A Withdrawn EP0084171A1 (fr) | 1982-01-08 | 1982-12-28 | Procédé de fabrication d'un câble électrique à isolant minéral comprimé et gaine en titane |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US4494307A (enrdf_load_stackoverflow) |
| EP (1) | EP0084171A1 (enrdf_load_stackoverflow) |
| JP (1) | JPS58121511A (enrdf_load_stackoverflow) |
| AU (1) | AU1021383A (enrdf_load_stackoverflow) |
| CA (1) | CA1186534A (enrdf_load_stackoverflow) |
| FR (1) | FR2519796A1 (enrdf_load_stackoverflow) |
| SU (1) | SU1421268A3 (enrdf_load_stackoverflow) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2555352A1 (fr) * | 1983-11-21 | 1985-05-24 | Thermocoax Cie | Cable blinde a isolant mineral et procede de fabrication permettant d'obtenir un tel cable |
| US4689443A (en) * | 1984-12-21 | 1987-08-25 | U.S. Philips Corporation | Armored cable having mineral insulation |
| EP0393264A1 (en) * | 1989-04-18 | 1990-10-24 | Inco Alloys Limited | Method for making mineral insulated metal sheathed cables |
| GB2268315A (en) * | 1992-06-24 | 1994-01-05 | Westinghouse Electric Corp | Low activated incore instrument |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1097039A (en) * | 1963-12-12 | 1967-12-29 | Plessey Uk Ltd | Improvements in or relating to mineral insulated cables |
| GB2041260A (en) * | 1979-02-08 | 1980-09-10 | Ass Elect Ind | Making mineral insulated electric cable |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3394036A (en) * | 1965-07-26 | 1968-07-23 | Titanium Metals Corp | Annealing titanium wire |
| US3969155A (en) * | 1975-04-08 | 1976-07-13 | Kawecki Berylco Industries, Inc. | Production of tapered titanium alloy tube |
| JPS6032286B2 (ja) * | 1978-01-12 | 1985-07-27 | 日立電線株式会社 | 無機絶縁電線の製造方法 |
| US4224085A (en) * | 1978-07-21 | 1980-09-23 | The International Nickel Co., Inc. | Wire forming process |
| FR2503442A1 (fr) * | 1981-04-07 | 1982-10-08 | Cables De Lyon Geoffroy Delore | Procede de fabrication de cables electriques a isolant mineral comprime et gaine metallique |
-
1982
- 1982-01-08 FR FR8200176A patent/FR2519796A1/fr active Granted
- 1982-12-28 EP EP82112053A patent/EP0084171A1/fr not_active Withdrawn
-
1983
- 1983-01-04 US US06/455,630 patent/US4494307A/en not_active Expired - Fee Related
- 1983-01-06 JP JP58000754A patent/JPS58121511A/ja active Pending
- 1983-01-07 SU SU833536193A patent/SU1421268A3/ru active
- 1983-01-07 CA CA000419093A patent/CA1186534A/fr not_active Expired
- 1983-01-07 AU AU10213/83A patent/AU1021383A/en not_active Abandoned
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1097039A (en) * | 1963-12-12 | 1967-12-29 | Plessey Uk Ltd | Improvements in or relating to mineral insulated cables |
| GB2041260A (en) * | 1979-02-08 | 1980-09-10 | Ass Elect Ind | Making mineral insulated electric cable |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2555352A1 (fr) * | 1983-11-21 | 1985-05-24 | Thermocoax Cie | Cable blinde a isolant mineral et procede de fabrication permettant d'obtenir un tel cable |
| EP0145060A3 (en) * | 1983-11-21 | 1985-07-17 | Thermocoax Et Cie. | Shielded cable with mineral insulation and manufacturing method to obtain such a cable |
| US4689443A (en) * | 1984-12-21 | 1987-08-25 | U.S. Philips Corporation | Armored cable having mineral insulation |
| EP0393264A1 (en) * | 1989-04-18 | 1990-10-24 | Inco Alloys Limited | Method for making mineral insulated metal sheathed cables |
| US4998341A (en) * | 1989-04-18 | 1991-03-12 | Inco Alloys Limited | Method for making mineral insulated metal sheathed cables |
| GB2268315A (en) * | 1992-06-24 | 1994-01-05 | Westinghouse Electric Corp | Low activated incore instrument |
| US5305357A (en) * | 1992-06-24 | 1994-04-19 | Westinghouse Electric Corp. | Low activated incore instrument |
| GB2268315B (en) * | 1992-06-24 | 1996-04-03 | Westinghouse Electric Corp | Low activated incore instrument |
Also Published As
| Publication number | Publication date |
|---|---|
| CA1186534A (fr) | 1985-05-07 |
| FR2519796A1 (fr) | 1983-07-18 |
| SU1421268A3 (ru) | 1988-08-30 |
| JPS58121511A (ja) | 1983-07-19 |
| FR2519796B1 (enrdf_load_stackoverflow) | 1985-03-15 |
| AU1021383A (en) | 1983-07-14 |
| US4494307A (en) | 1985-01-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| AK | Designated contracting states |
Designated state(s): DE FR GB IT |
|
| 17P | Request for examination filed |
Effective date: 19840126 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 19850810 |
|
| RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: BOURGET, JEAN-CLAUDE |