GB607808A - Method of heat treating steels and other metals - Google Patents
Method of heat treating steels and other metalsInfo
- Publication number
- GB607808A GB607808A GB430246A GB430246A GB607808A GB 607808 A GB607808 A GB 607808A GB 430246 A GB430246 A GB 430246A GB 430246 A GB430246 A GB 430246A GB 607808 A GB607808 A GB 607808A
- Authority
- GB
- United Kingdom
- Prior art keywords
- heating
- rolling
- metals
- heat treating
- hardened
- 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
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/06—Surface hardening
- C21D1/09—Surface hardening by direct application of electrical or wave energy; by particle radiation
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
In a method of heat-treating the surface of a metallic work-piece, a small zone of the surface, comprising a point or a line, is subjected to heating by an electric current from a conducting member rolling over it, which heating does not substantially raise the temperature of the remainder of the workpiece. The rolling member may be in a disc or a roller and may have axial movement with respect to the article being treated. The heating may anneal, or, followed by quenching by a jet of cooling medium, harden the surface or may temper work previously hardened. As an example a railway wheel which has become flattened may be annealed, turned and finally hardened. The method may also be applied to the hardening of gear teeth, rolls for rolling mills, bolts or shafts.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB430246A GB607808A (en) | 1946-02-12 | 1946-02-12 | Method of heat treating steels and other metals |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB430246A GB607808A (en) | 1946-02-12 | 1946-02-12 | Method of heat treating steels and other metals |
Publications (1)
Publication Number | Publication Date |
---|---|
GB607808A true GB607808A (en) | 1948-09-06 |
Family
ID=9774598
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB430246A Expired GB607808A (en) | 1946-02-12 | 1946-02-12 | Method of heat treating steels and other metals |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB607808A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0928833A2 (en) * | 1998-01-12 | 1999-07-14 | Mazda Motor Corporation | Electric heating treatment method, electric heating treatment apparatus, and electrode for electric heating treatment apparatus |
WO2006009720A1 (en) * | 2004-06-22 | 2006-01-26 | The Timken Company | Seal for worm gear speed reducer |
-
1946
- 1946-02-12 GB GB430246A patent/GB607808A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0928833A2 (en) * | 1998-01-12 | 1999-07-14 | Mazda Motor Corporation | Electric heating treatment method, electric heating treatment apparatus, and electrode for electric heating treatment apparatus |
EP0928833A3 (en) * | 1998-01-12 | 1999-08-11 | Mazda Motor Corporation | Electric heating treatment method, electric heating treatment apparatus, and electrode for electric heating treatment apparatus |
US6222152B1 (en) | 1998-01-12 | 2001-04-24 | Mazda Motor Corporation | Electric heating treatment method, electric heating treatment apparatus, and electrode for electric heating treatment apparatus |
WO2006009720A1 (en) * | 2004-06-22 | 2006-01-26 | The Timken Company | Seal for worm gear speed reducer |
US7662240B2 (en) | 2004-06-22 | 2010-02-16 | The Timken Company | Seal for worm gear speed reducer |
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