CH133526A - Process for the treatment of raw, semi-finished and finished products made of materials with a crystalline structure, in particular metals and metal alloys, for the purpose of influencing their structure and their properties. - Google Patents
Process for the treatment of raw, semi-finished and finished products made of materials with a crystalline structure, in particular metals and metal alloys, for the purpose of influencing their structure and their properties.Info
- Publication number
- CH133526A CH133526A CH133526DA CH133526A CH 133526 A CH133526 A CH 133526A CH 133526D A CH133526D A CH 133526DA CH 133526 A CH133526 A CH 133526A
- Authority
- CH
- Switzerland
- Prior art keywords
- finished
- materials
- properties
- metal alloys
- semi
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/08—Making tubes with welded or soldered seams
Description
Verfahren zur Behandlung von Roh-, Halb- und Fertigfabrikaten aus Stoen kristallinischer Struktur, insbesondere Metalle und Metallegierungen, zwecks Beeinflussung ihrer Struktur und ihrer Eigenschaften. Es ist bekannt, dass wenn Roh-, Halb- und Fertigfabrikate, insbesondere Metall fabrikate, zwecks Formgebung mechanischen Kräften ausgesetzt werden, gleichzeitig- ge wisse Eigenschaften (mechanische, physika lische etc.) gewollt oder ungewollt ver ändert werden. Es ist weiter bekannt, dass diese Veränderungen wieder rückgängig ge macht oder geändert werden können, indem die Stoffe einer Wärme- oder Kältebehand lung durch Glühen, Anlassen, Abschrecken usw. ausgesetzt werden. Es können auch durch Glühen, Anlassen, Abschrecken usw.
allein, ohne vorherige Bearbeitung andere Eigenschaften in Stoffen erreicht werden.
Das vorliegende Verfahren bezweckt nun, alle diese Wirkungen, die bisher zum Bei spiel durch Wärme- oder Kältebehandlung erzielt wurden, besser und wirtschaftlicher dadurch zu erreichen, dass die zu behandeln den Körper oder Stoffe kristallinischer Struk tur durch Hochfrequenz erzeugten Wirbel- strömen ausgesetzt werden, wobei eine Fre quenz von wenigstens 300 Perioden ange wendet wird.
Das Verfahren kann überall dort gleich zeitig oder nachträglich angewandt werden, w6 irgendwelche Stoffe kristallinischer Struktur durch irgendeine Bearbeitung un ter Energieaufwand (Schmelzen, Drücken, Ziehen, Pressen, Walzen, Schneiden usw.) geformt oder beansprucht werden.
Als Bei spiel sei angeführt: Man; walzt eine Messing- platte bis zur Grenze ihrer Festigkeit, setzt diese Messingplatte dann den Strömen aus, und sie wird nach ganz kurzer Zeit (wie Versuche zeigen, etwa nach S-0 bis GO Se kunden) ihre alten ;mechanischen Eigen <I>s</I> a 'haft en und ein ganz feines Korngefüge C besitzen, so dass der Walzvorgang sofort er neut vor sich gehen kann.
Gegebenenfalls wird es zweckmässig sein, die Ströme während des Bearbeitungsvor ganges wirken zu lassen, so dass der Bearbei- tungsvorgang (Giessen, Walzen, Pressen etc.) kontinuierlich durchgeführt werden kann. Im Gegensatz hierzu ist es aber auch mög lich, die durch eine vorhergehende Bearbei tung erzielten Eigenschaften durch entspre chende Durchleitung des Stromes noch zu verstärken oder sonstwie zu verändern.
Bei Bearbeitung von Messinggegenständen unter Anwendung von Wirbelströmen ist es möglich, während der Einwirkung der Ströme auf den Gegenstand gleichzeitig auch die das Oxydieren verhindernden Gase oder Vakuum einwirken zu lassen, so dass es zum Beispiel einwandfrei ge lingt, eine Messingplatte oxydfrei zu 'bear beiten und oxydfrei abzukühlen, ohne die bisher hierzu erforderlichen umständlichen Apparate und ohne die bisher entstehender. grossen Wärmeverluste. Dasselbe gilt natür lich für alle andern oxydierenden Stoffe. Das neue Verfahren gibt bei zweckentspre chender Auswahl der Einwirkungsfaktoren die Möglichkeit, insbesondere Metalle und Metallegierungen spannungs- und zum Teil korrosionsfrei herstellen zu können.
Da die Beeinflussung durch die Ströme nur kurze Zeit zu erfolgen hat, so ist er sichtlich, dass durch dieses Verfahren auch eine erhebliche Produktionsbeschleunigung und dadurch eine erhebliche Reduzierung der erforderlichen Umlaufsmengen erfolgt.
Process for the treatment of raw, semi-finished and finished products made of materials with a crystalline structure, in particular metals and metal alloys, for the purpose of influencing their structure and their properties. It is known that when raw, semi-finished and finished products, in particular metal products, are exposed to mechanical forces for the purpose of shaping, certain properties (mechanical, physical, etc.) are deliberately or unintentionally changed at the same time. It is also known that these changes can be reversed or changed by exposing the substances to a heat or cold treatment by annealing, tempering, quenching, etc. It can also be done by annealing, tempering, quenching, etc.
alone, without prior processing, other properties can be achieved in substances.
The aim of the present method is to achieve all of these effects, which were previously achieved, for example, by heat or cold treatment, better and more economically by exposing the body or substances of crystalline structure to be treated to eddy currents generated by high frequency, a frequency of at least 300 periods being applied.
The process can be applied simultaneously or retrospectively wherever any material with a crystalline structure is shaped or stressed by any kind of energy-intensive processing (melting, pressing, drawing, pressing, rolling, cutting, etc.).
The following is an example: Man; If a brass plate rolls to the limit of its strength, this brass plate is then exposed to the currents, and after a very short time (as experiments show, after about S-0 to GO seconds) it will retain its old mechanical properties </I> a 'and have a very fine grain structure C, so that the rolling process can start again immediately.
It may be useful to let the currents act during the machining process so that the machining process (casting, rolling, pressing, etc.) can be carried out continuously. In contrast to this, however, it is also possible, please include, to reinforce or otherwise change the properties achieved by previous processing by passing the current through.
When machining brass objects using eddy currents, it is possible, while the currents act on the object, to simultaneously let the gases or vacuum prevent oxidation act, so that, for example, a brass plate can be machined and oxide-free To cool down oxide-free, without the cumbersome apparatus previously required for this purpose and without the previously created equipment. large heat losses. The same applies, of course, to all other oxidizing substances. With the appropriate selection of the influencing factors, the new process gives the possibility of being able to manufacture metals and metal alloys in particular stress-free and in some cases corrosion-free.
Since the influence of the currents only has to take place for a short time, it is evident that this process also results in a considerable acceleration in production and thus a considerable reduction in the required quantities in circulation.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH133526T | 1928-02-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH133526A true CH133526A (en) | 1929-06-15 |
Family
ID=4391670
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH133526D CH133526A (en) | 1928-02-10 | 1928-02-10 | Process for the treatment of raw, semi-finished and finished products made of materials with a crystalline structure, in particular metals and metal alloys, for the purpose of influencing their structure and their properties. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH133526A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE897759C (en) * | 1940-11-02 | 1953-11-23 | Siemens Ag | Process to avoid coarse crystallization on magnetizable metallic workpieces |
US2876083A (en) * | 1953-06-29 | 1959-03-03 | Prietl Franz | Process of producing crystals from particles of crystallizable substance distributedin a liquid |
DE1054103B (en) * | 1954-01-22 | 1959-04-02 | Deutsche Edelstahlwerke Ag | Method of twisting the bearings of forged crankshafts |
DE102007031185A1 (en) * | 2007-07-04 | 2009-01-08 | Eads Deutschland Gmbh | Method and device for the pretreatment of metallic workpieces for bores |
-
1928
- 1928-02-10 CH CH133526D patent/CH133526A/en unknown
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE897759C (en) * | 1940-11-02 | 1953-11-23 | Siemens Ag | Process to avoid coarse crystallization on magnetizable metallic workpieces |
US2876083A (en) * | 1953-06-29 | 1959-03-03 | Prietl Franz | Process of producing crystals from particles of crystallizable substance distributedin a liquid |
DE1054103B (en) * | 1954-01-22 | 1959-04-02 | Deutsche Edelstahlwerke Ag | Method of twisting the bearings of forged crankshafts |
DE102007031185A1 (en) * | 2007-07-04 | 2009-01-08 | Eads Deutschland Gmbh | Method and device for the pretreatment of metallic workpieces for bores |
DE102007031185B4 (en) * | 2007-07-04 | 2015-05-13 | Airbus Defence and Space GmbH | Process for the pretreatment of metallic workpieces for drilling |
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