CH94320A - A method of fixing a conductor, the metal of which consists at least in part of nickel, to a glass support. - Google Patents
A method of fixing a conductor, the metal of which consists at least in part of nickel, to a glass support.Info
- Publication number
- CH94320A CH94320A CH94320DA CH94320A CH 94320 A CH94320 A CH 94320A CH 94320D A CH94320D A CH 94320DA CH 94320 A CH94320 A CH 94320A
- Authority
- CH
- Switzerland
- Prior art keywords
- conductor
- nickel
- metal
- fixing
- glass support
- Prior art date
Links
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 title claims description 23
- 239000004020 conductor Substances 0.000 title claims description 13
- 239000011521 glass Substances 0.000 title claims description 11
- 229910052759 nickel Inorganic materials 0.000 title claims description 11
- 229910052751 metal Inorganic materials 0.000 title claims description 10
- 239000002184 metal Substances 0.000 title claims description 10
- 238000000034 method Methods 0.000 title claims description 10
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims description 2
- 239000011261 inert gas Substances 0.000 claims description 2
- 239000001301 oxygen Substances 0.000 claims description 2
- 229910052760 oxygen Inorganic materials 0.000 claims description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 3
- 239000007789 gas Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C27/00—Joining pieces of glass to pieces of other inorganic material; Joining glass to glass other than by fusing
- C03C27/02—Joining pieces of glass to pieces of other inorganic material; Joining glass to glass other than by fusing by fusing glass directly to metal
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Resistance Heating (AREA)
Description
Procédé pour figer à un support en verre un conducteur dont le métal est constitué au moins en partie par du nickel. La présente invention a pour objet un procédé pour fixer, à Lui support en verre, un conducteur dont le métal est constitué au moins en partie par du nickel. Jusqu'à pré sent, plus d'un essai a été fait d'utiliser le nickel dans ce but, dans la fabrication des lampes à incandescences par exemple. Mais la difficulté a toujours résidé dans la fixation d'un conducteur de ce métal dans un support de verre, vu qu'une grande quantité de gaz se dégage pendant cette opération et rend pratiquement impossible le scellement her métique de ce métal.
En outre, la différence . des coefficients de dilatation du nickel et du verre provoque des fissures sous l'influence du changement de température.
Le procédé selon l'invention consiste à modifier les procédés du conducteur en le chauffant à blanc dans un récipient ne con tenant pas d'oxygène, à refroidir le conduc teur et à sceller ce dernier hermétiquement dans un support en verre.
Voici une forme d'exécution de l'inven tion : Mettre un fil de nickel réduit à une lame mince et étroite dans un récipient rempli d'un gaz inerte, tel que l'hydrogène ou l'a zote, et y passer uni courant électrique, pour que le métal soit chauffé 15 à 60 minutes durant, jusqu'à ce qu'il arrive à l'incandes cence, presque à son point de fusion, c'est-à- dire à environ 1.400 degrés.
Couper alors le courant et laisser le fil métallique se refroi dir et ensuite introduire celui-ci dans un support en verre, préalablement chauffé, com me s'il s'agissait d'un fil de platine, d'acier ou de nickel ordinaire et enfin comprimer le support pour que le fil métallique introduit y soit hermétiquement enfermé et scellé.
Par suite de ce traitement, le nickel de vient plus ou moins flexible et souple et il ne se dégage plus de gaz quand on le plonge dans du verre à l'état de demi-fusion; ce qui permet de le sceller hermétiquement dans le verre et de le manier, pour en faire un conducteur, par un procédé simple et sans la moindre expérience acquise, mais absolu ment de même que. le platine, métal si cher.
Un conducteur de nickel traité suivant le procédé de cette invention peut être étiré en une bande mince avec ou sans rainure dans sa longueur et, par conséquent, avec une surface plus large, lorsqu'il y a une rainure.
Le procédé est également applicable au nickel pur et aux alliages de nickel comme par exemple le nickel chromé.
Process for fixing to a glass support a conductor whose metal consists at least in part of nickel. The present invention relates to a method for fixing, to it a glass support, a conductor whose metal consists at least in part of nickel. To date, more than one attempt has been made to use nickel for this purpose, in the manufacture of incandescent lamps for example. But the difficulty has always resided in the fixing of a conductor of this metal in a glass support, since a large quantity of gas is given off during this operation and makes the hermetic sealing of this metal practically impossible.
Also, the difference. coefficients of expansion of nickel and glass causes cracks under the influence of temperature change.
The method according to the invention consists in modifying the methods of the conductor by heating it to white in a container which does not contain oxygen, in cooling the conductor and in sealing the latter hermetically in a glass support.
Here is an embodiment of the invention: Put a nickel wire reduced to a thin and narrow blade in a container filled with an inert gas, such as hydrogen or a zote, and pass a current through it. electric, so that the metal is heated for 15 to 60 minutes, until it arrives at incandescent, almost to its melting point, that is to say to about 1,400 degrees.
Then cut the current and let the metal wire cool down and then introduce it into a glass support, previously heated, as if it were a platinum wire, steel or ordinary nickel and finally compress the support so that the metal wire introduced is hermetically enclosed and sealed.
As a result of this treatment, the nickel becomes more or less flexible and supple and no gas is given off when it is immersed in glass in the semi-molten state; which makes it possible to seal it hermetically in the glass and to handle it, to make it a conductor, by a simple process and without the slightest experience acquired, but absolutely the same as. platinum, a metal so expensive.
A nickel conductor treated according to the method of this invention can be drawn into a thin strip with or without a groove in its length and, therefore, with a wider surface area, when there is a groove.
The process is also applicable to pure nickel and to nickel alloys such as for example chromed nickel.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH94320T | 1918-10-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH94320A true CH94320A (en) | 1922-05-01 |
Family
ID=4351914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH94320D CH94320A (en) | 1918-10-04 | 1918-10-04 | A method of fixing a conductor, the metal of which consists at least in part of nickel, to a glass support. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH94320A (en) |
-
1918
- 1918-10-04 CH CH94320D patent/CH94320A/en unknown
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