GB571808A - Surface hardening of steel - Google Patents
Surface hardening of steelInfo
- Publication number
- GB571808A GB571808A GB1621/44A GB162144A GB571808A GB 571808 A GB571808 A GB 571808A GB 1621/44 A GB1621/44 A GB 1621/44A GB 162144 A GB162144 A GB 162144A GB 571808 A GB571808 A GB 571808A
- Authority
- GB
- United Kingdom
- Prior art keywords
- heated
- edge
- current
- inductor
- metal
- 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
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/36—Coil arrangements
- H05B6/362—Coil arrangements with flat coil conductors
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Induction Heating (AREA)
Abstract
571,808. Electric induction heating. STANDARD TELEPHONES & CABLES, Ltd. Jan. 28, 1944, No. 1621. Convention date, Feb. 5, 1943. [Class 39 (iii)] The edge 2 of a slot in a metal plate 1, which it is desired to harden, is heated by an inductor 3 comprising a loop of copper tube through which water passes, and which is supplied with a high frequency current of 2,000,000-30,000,000 cycles per second, e.g., 5,000,000 cycles. The magnetic flux penetrates the metal and heats it only to a depth of about .001 inch, and when the current is cut off the heated layer is quenched by conduction to the colder metal behind it. The inductor is placed closely adjacent to the edge to be heated, and current may be applied for about 1/5 second. Any straight or curved edge or other surface may be similarly heated. Specifications 472,310 and 484,316 are referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US571808XA | 1943-02-05 | 1943-02-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB571808A true GB571808A (en) | 1945-09-10 |
Family
ID=22008999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1621/44A Expired GB571808A (en) | 1943-02-05 | 1944-01-28 | Surface hardening of steel |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB571808A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1225681B (en) * | 1957-05-08 | 1966-09-29 | Rheinstahl Huettenwerke Ag | Process for achieving high toughness properties at extremely low temperatures in weld seams on steel |
| DE1240905B (en) * | 1957-01-04 | 1967-05-24 | Heinrich Blechner | Process for the production of surfaces of the greatest hardness on hardenable steels |
-
1944
- 1944-01-28 GB GB1621/44A patent/GB571808A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1240905B (en) * | 1957-01-04 | 1967-05-24 | Heinrich Blechner | Process for the production of surfaces of the greatest hardness on hardenable steels |
| DE1225681B (en) * | 1957-05-08 | 1966-09-29 | Rheinstahl Huettenwerke Ag | Process for achieving high toughness properties at extremely low temperatures in weld seams on steel |
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