DE863965C - Process for the production of AC rectifiers according to the dry surface contact system - Google Patents
Process for the production of AC rectifiers according to the dry surface contact systemInfo
- Publication number
- DE863965C DE863965C DEW3250D DEW0003250D DE863965C DE 863965 C DE863965 C DE 863965C DE W3250 D DEW3250 D DE W3250D DE W0003250 D DEW0003250 D DE W0003250D DE 863965 C DE863965 C DE 863965C
- Authority
- DE
- Germany
- Prior art keywords
- temperature
- tempering
- plates
- oxidation
- time
- 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
- 238000000034 method Methods 0.000 title claims description 8
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- 238000005496 tempering Methods 0.000 claims description 26
- 230000003647 oxidation Effects 0.000 claims description 13
- 238000007254 oxidation reaction Methods 0.000 claims description 13
- 239000002184 metal Substances 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 claims description 4
- 239000005751 Copper oxide Substances 0.000 claims description 3
- 229910000431 copper oxide Inorganic materials 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 238000001816 cooling Methods 0.000 claims 1
- 229960004643 cupric oxide Drugs 0.000 claims 1
- 238000001035 drying Methods 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 claims 1
- 150000002736 metal compounds Chemical class 0.000 claims 1
- 230000003111 delayed effect Effects 0.000 description 3
- 238000000137 annealing Methods 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/16—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising cuprous oxide or cuprous iodide
- H01L21/161—Preparation of the foundation plate, preliminary treatment oxidation of the foundation plate, reduction treatment
- H01L21/164—Oxidation and subsequent heat treatment of the foundation plate
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Thermal Sciences (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Heat Treatment Of Articles (AREA)
- Apparatuses And Processes For Manufacturing Resistors (AREA)
Description
(WiGBl. S. 175)(WiGBl. P. 175)
AUSGEGEBEN AM 22. JANUAR 1953ISSUED JANUARY 22, 1953
W 3250 VIII cj 21gW 3250 VIII cj 21g
Die Erfindung bezieht sich auf die Herstellung von Wecbselstromgleichrichtern nach dem Trockenflächenberührungssystem, die aus einem Metallkörper bestehen, auf welchem unmittelbar eine Verbindung des Metalls gebildet ist, und besonders von Kupferoxydgleichrichtern.The invention relates to the production of AC rectifiers according to the dry surface contact system, which consist of a metal body on which a connection of the metal is formed directly, and especially of Copper oxide rectifiers.
Gleichrichterelemente dieser Art können, wie bisher vorgeschlagen worden ist, in der Weise hergestellt werden, daß Metallstücke in einer geeigneten Atmosphäre bei einer geeigneten Temperatur über einen geeigneten Zeitraum erhitzt werden, so daß eine Verbindung des Metalls auf ihnen gebildet wird. So werden z. B. Kupferplatten in einer oxydierenden Temperatur derart erhitzt, daß sich auf der Metalloberfläche Kupferoxydul bildet, und die Platten werden dann sofort aus dem Oxydationsofen in einen Temperungsofen gebracht, der auf einer niedrigeren Temperungstemperatur gehalten wird, so daß die Platten auf diese niedrigere Temperatur abgekühlt werden, worauf die Platten entweder sofort oder nachdem sie eine bestimmte verhältnismäßig lange Zeit hindurch auf der Temperungstemperatur belassen waren, aus dem Temperungsofen entfernt und plötzlich in kaltem Wasser oder einem Strom kalter Luft gekühlt bzw. abgelöscht werden.Rectifier elements of this type can, as has been proposed so far, manufactured in this way be that metal pieces in a suitable atmosphere at a suitable temperature heated for a suitable period of time so that a bond of the metal is formed on them will. So z. B. heated copper plates in an oxidizing temperature so that Copper oxide forms on the metal surface, and the plates are then immediately taken out of the oxidation furnace into a tempering furnace, which opens on a lower annealing temperature is maintained, so that the plates at this lower temperature be cooled, whereupon the plates either immediately or after they have passed a certain time were left for a relatively long time at the tempering temperature from which Tempering furnace removed and suddenly cooled or cooled in cold water or a stream of cold air. be extinguished.
Gemäß der Erfindung werden dagegen die Platten, nachdem sie erhitzt oder der Oxydationstemperatur, wie. oben geschildert, unterworfen waren, bevor 'sie der Temperungstemperatur unterworfen werden, auf eine Temperatur abgekühlt, die zwischen der Oxydatioms- und der Temperungstemperatur liegt, indem sie z.B. kalter Luft ausgesetzt wenden. Diese Zwischentemperatur liegt vorzugsweise nur wenige Grade über der Temperungstemperatur. According to the invention, however, the plates after they have been heated or the oxidation temperature, such as. described above, subject were, before they are subjected to the tempering temperature, cooled to a temperature which lies between the oxidation temperature and the tempering temperature, e.g. by being exposed to cold air turn around. This intermediate temperature is preferably only a few degrees above the tempering temperature.
Es hat sich gezeigt, daß, wenn die Überführung der oxydierten Platten aus dam Oxydationsofen in den Temperunigsofen in dieser Weise verzögert wird, anstatt daß man die Platten unmittelbar, wie es bei den früheren bekannten Verfahren der Fall war, vom Oxydationsofen in den Temperungsofen überführte, -der Widerstand der Gleichrichter in der normalen Richtung verringert wind, ohne daß der Widerstand in der Sperrichtung entsprechend verringert wird, was, wie ohne weiteres klar ist, einen wichtigen Vorteil bildet.It has been shown that when the transfer of the oxidized plates from the oxidizing furnace to the Temperunigsofen is delayed in this way, instead of the plates immediately, as it was the case with the earlier known processes, from the oxidation furnace to the tempering furnace convicted, -the resistance of the rectifier in the normal direction is reduced without the Resistance in the reverse direction is reduced accordingly becomes, which, as is readily apparent, constitutes an important advantage.
Im Fall von Kupferoxydgleichrichtern kann die Verzögerungs-zeit, die bei der Überführung einer normalen bzw. üblichen Ofenbeschickung von oxydierten Platten oder Rohstücken aus dem Oxydationsofen in den Temperungsofen gefordert wird, z.B. etwa 1 Minute betragen, während die darauffolgende Temperungsizeit vor der Ablöscbung normale Dauer hat, z. B. 10 Minuten. Die auf diesem Weg erreichte Verringerung des Widerstandes in der Richtung des niedrigen Widerstandes des Gleichrichterelements ist gleich der, welche erreicht werden kann, wenn man die oxydierten Platten sogleich aus dem Oxydationsofen in den Temperungsofen überführt und dann, wie es früher vorgeschlagen worden ist, der Temperungstemperatur einen verhältnismäßig langen Zeitraum, z. B. 30 Minuten hindurch aussetzt. Aber in diesem letzteren Fall würde auch der Widerstand 40' in der Sperrichtung entsprechend verringert werden, was offenbar unerwünscht ist.In the case of copper oxide rectifiers, the delay time involved in the transfer of a normal or usual furnace loading of oxidized plates or raw pieces from the Oxidation furnace is required in the tempering furnace, e.g. about 1 minute, while the the subsequent tempering period prior to detachment has normal duration, e.g. B. 10 minutes. The reduction in resistance achieved in this way in the direction of low resistance of the rectifier element is the same as that which can be achieved by using the oxidized plates are immediately transferred from the oxidation furnace to the tempering furnace and then, as has been suggested earlier, the annealing temperature for a relatively long period of time, z. B. exposes for 30 minutes. But in this latter case the resistance would too 40 'in the blocking direction can be reduced accordingly, which is obviously undesirable.
Wenn man dagegen die Überführung, wie oben gesagt, um 1 Minute verzögert, bleibt der Widerstand in der Sperrichtung der Elemente derselbe, wie er sein würde, wenn die oxydierten Platten der Temperungstemperatur io- Minuten unterworfen waren ohne die dazwischenliegende Verzögerung, und es wird «somit gemäß der Erfindung eine Verringerung des Widerstandes in der Nortnalrichtung erreicht ohne eine entsprechende unerwünschte Verringerung des Widerstandes in der Sperrichtung, wobei zu bemerken ist, daß der Widerstand in der Sperrichtung allmählich verringert wind, wenn die Temperungsizeit verlängert wird.If, on the other hand, the transfer is delayed by 1 minute, as mentioned above, the resistance remains the same in the reverse direction of the elements as it would be if the oxidized plates of the Were subjected to tempering temperature of 10 minutes without the intervening delay, and there thus becomes, according to the invention, a reduction in resistance in the north direction achieved without a corresponding undesirable reduction in the resistance in the reverse direction, it should be noted that the resistance in the reverse direction gradually decreases as the Tempering time is extended.
Ferner wind dadurch, daß die Überführung aus dem Oxydationsotfen in den Temperungsofen gemäß der Erfindung verzögert wird, um den Widerstand in der Normalricbtung zu verringern, eine erhebliche Verkürzung der Zeit, die für den Temperungsprozeß erforderlich ist, bewirkt, im Vergleich zu dem erwähnten früher vorgeschlagenen Verfahren, bei welchem die oxydierten Platten oder Röhstücke in dem Temperungsofen einen verhältnismäßig-langen Zeitraum hindurch belassen werden mußten. Ferner erleichtert die Verzögerung zwischen dem Oxydations- und dem Temperungsvorgang die Anordnung einer kontinuierlichen Ofenanlage für die HerstellungvonGleichrichterelementen, da die Trennung der für die Oxydation erforderten Zeit von der für die Tempering erforderlichen Zeit durch die Verzögerungsperiode den Fabrikationszyklus elastisch macht, weil entweder die Oxydationszeit oder die Temperungszeit leicht verändert wenden kann, und zwar die eine unabhängig von der andern.Furthermore, the fact that the transfer from the oxidation furnace to the tempering furnace according to FIG of the invention is delayed in order to reduce the resistance in the normal direction, a considerable Shortening the time required for the tempering process causes compared to that mentioned earlier proposed method in which the oxidized plates or blanks in had to be left in the tempering furnace for a relatively long period of time. Further the delay between the oxidation and the tempering process facilitates the arrangement a continuous furnace for the production of rectifier elements, because the time required for oxidation is separated from the time required for tempering by the delay period makes the manufacturing cycle elastic, because either the oxidation time or the The tempering time can be changed slightly, one independently of the other.
Es ist zu bemerken, 'daß die Erfindung nicht auf die Verzögerungs- und Temperungszeiträume, wie sie oben nur beispielsweise angegeben sind, beschränkt ist, vielmehr können diese Zeiträume verändert werden, um besonderen Bedingungen oder Erfordernissen zu entsprechen.It should be noted that the invention does not apply the delay and tempering periods, as given above only by way of example, are limited Rather, these periods can be changed to accommodate special conditions or periods To meet requirements.
Claims (4)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB12955/37A GB495049A (en) | 1937-05-06 | 1937-05-06 | Improvements relating to the manufacture of alternating electric current rectifiers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE863965C true DE863965C (en) | 1953-01-22 |
Family
ID=10014175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEW3250D Expired DE863965C (en) | 1937-05-06 | 1937-09-24 | Process for the production of AC rectifiers according to the dry surface contact system |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2172576A (en) |
| DE (1) | DE863965C (en) |
| GB (1) | GB495049A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE509424A (en) * | 1951-02-23 |
-
0
- US US2172576D patent/US2172576A/en not_active Expired - Lifetime
-
1937
- 1937-05-06 GB GB12955/37A patent/GB495049A/en not_active Expired
- 1937-09-24 DE DEW3250D patent/DE863965C/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB495049A (en) | 1938-11-07 |
| US2172576A (en) | 1939-09-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE863965C (en) | Process for the production of AC rectifiers according to the dry surface contact system | |
| DE2500914C3 (en) | Process for the production of a starting material for the production of hollow wires from precious metal which are used for the production of pieces of jewelery | |
| DE543994C (en) | Process for the manufacture of rectifier elements | |
| DE1180466B (en) | Electric contact | |
| DE763878C (en) | Process for manufacturing copper oxide rectifier elements | |
| DE1052580B (en) | Method of manufacturing an electric discharge tube | |
| DE747964C (en) | Production of electrode grids for lead collectors with improved module breaking load / unit elongation | |
| DE3146020A1 (en) | "TEMPERATURE-DEPENDENT RESISTANCE" | |
| DE512818C (en) | Method for manufacturing a rectifier element | |
| DE723526C (en) | Process for the manufacture of copper oxide rectifiers | |
| DE519162C (en) | Electric valve with a fixed valve layer arranged between electrodes | |
| DE624114C (en) | Method of manufacturing a copper oxide rectifier | |
| AT153123B (en) | Process for the production of an electrode system with asymmetrical conductivity. | |
| DE622547C (en) | Tinning process for copper wire | |
| AT142237B (en) | Tinning process for copper wire. | |
| AT109350B (en) | Process for the manufacture of oxide cathodes. | |
| DE2237825C3 (en) | Process for cleaning sawn semiconductor wafers and its use for cleaning silicon wafers | |
| DE767593C (en) | Process for obtaining tantalum and / or niobium compounds | |
| AT154703B (en) | Process for the manufacture of sheet metal. | |
| DE838037C (en) | Copper oxide dry rectifiers and process for their manufacture | |
| DE543136C (en) | Process for the manufacture of plates for copper oxide rectifiers | |
| DE851981C (en) | Process for the production of copper oxide dry rectifiers | |
| AT149299B (en) | Electrode system with asymmetrical conductivity. | |
| AT106221B (en) | Process for preventing the oxidation of magnesium and its alloys. | |
| DE862636C (en) | Process for the manufacture of copper oxide rectifiers |