GB874685A - Method and device for the direct electrical resistance heating of metallic rod-shaped bodies - Google Patents
Method and device for the direct electrical resistance heating of metallic rod-shaped bodiesInfo
- Publication number
- GB874685A GB874685A GB38959/58A GB3895958A GB874685A GB 874685 A GB874685 A GB 874685A GB 38959/58 A GB38959/58 A GB 38959/58A GB 3895958 A GB3895958 A GB 3895958A GB 874685 A GB874685 A GB 874685A
- Authority
- GB
- United Kingdom
- Prior art keywords
- contact
- contacts
- side contacts
- voltage
- varied
- 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
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/0004—Devices wherein the heating current flows through the material to be heated
Landscapes
- Control Of Resistance Heating (AREA)
Abstract
874,685. Heating billets or the like electrically. BROWN, BOVERI & CIE A.G. Dec. 3, 1958 [Dec. 19, 1957], No. 38959/58. Class 39(3). A method for the direct electrical resistance heating of rod-shaped bodies, by means of a contact device arranged at each end of the body and having at least one end contact and several side contacts, is characterised in that the voltage of the side contacts is varied with respect to that of the end contacts without interrupting the current supply. The side contacts and the end contacts may be connected to different variable voltages, or the side contacts may be connected to the voltage supply of the end contacts by means of adjustable ohmic resistors or inductive reactive resistors. The voltage of the side contacts relative to each other and to that of the end contacts may be varied. In the embodiment shown, in which a contact device for heating a billet 2 has an end contact 1 and four roller-shaped side contacts 3 having pressure elements 5, the inductance of a lead 6 connecting a contact 3 to the voltage source 7 of the end contact 1 can be varied from a larger value, as in Fig. 1 where the points of contact of the side contact 3 are furthest removed from the end contact 1, to a smaller value as shown in Fig. 2, where the distance between end contact 1 and contacts 3 is a minimum. Specifications 778,977 and 794,227 are referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH874685X | 1957-12-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB874685A true GB874685A (en) | 1961-08-10 |
Family
ID=4544310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB38959/58A Expired GB874685A (en) | 1957-12-19 | 1958-12-03 | Method and device for the direct electrical resistance heating of metallic rod-shaped bodies |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB874685A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3742865A1 (en) * | 2019-05-23 | 2020-11-25 | ITG Induktionsanlagen GmbH | Method for conductive heating of curved metallic workpieces, installation for carrying out the method, and field management element for carrying out the method or as part of the system |
-
1958
- 1958-12-03 GB GB38959/58A patent/GB874685A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3742865A1 (en) * | 2019-05-23 | 2020-11-25 | ITG Induktionsanlagen GmbH | Method for conductive heating of curved metallic workpieces, installation for carrying out the method, and field management element for carrying out the method or as part of the system |
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