GB637008A - Method and apparatus for heat treatment by means of high frequency electric current - Google Patents
Method and apparatus for heat treatment by means of high frequency electric currentInfo
- Publication number
- GB637008A GB637008A GB11901/48A GB1190148A GB637008A GB 637008 A GB637008 A GB 637008A GB 11901/48 A GB11901/48 A GB 11901/48A GB 1190148 A GB1190148 A GB 1190148A GB 637008 A GB637008 A GB 637008A
- Authority
- GB
- United Kingdom
- Prior art keywords
- stage
- heat treatment
- high frequency
- electric current
- frequency electric
- 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
-
- 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
- C21D1/34—Methods of heating
- C21D1/42—Induction heating
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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)
- General Induction Heating (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
637,008. Induction heating. DREYFUS, L., and ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. April 30, 1948, No. 11901. [Class 39 (iii)] A method of heating a metallic workpiece comprises two stages ; during the first stage a comparatively large amount of power is supplied to the workpiece to raise the surface temperature rapidly; during the second stage the power supplied to the workpiece is gradually decreased according to the formula P=Poe -t/T where Po= power supplied at first stage, t=time from commencement of decrease and T=time constant dependent on the nature of the material.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB11901/48A GB637008A (en) | 1948-04-30 | 1948-04-30 | Method and apparatus for heat treatment by means of high frequency electric current |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB11901/48A GB637008A (en) | 1948-04-30 | 1948-04-30 | Method and apparatus for heat treatment by means of high frequency electric current |
Publications (1)
Publication Number | Publication Date |
---|---|
GB637008A true GB637008A (en) | 1950-05-10 |
Family
ID=9994729
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB11901/48A Expired GB637008A (en) | 1948-04-30 | 1948-04-30 | Method and apparatus for heat treatment by means of high frequency electric current |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB637008A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0232477A1 (en) * | 1985-12-19 | 1987-08-19 | BBC Brown Boveri AG | Process for zone-annealing of metal workpieces |
-
1948
- 1948-04-30 GB GB11901/48A patent/GB637008A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0232477A1 (en) * | 1985-12-19 | 1987-08-19 | BBC Brown Boveri AG | Process for zone-annealing of metal workpieces |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB637008A (en) | Method and apparatus for heat treatment by means of high frequency electric current | |
GB577830A (en) | Removal of metal wire from vulcanised rubber such as the rims of tyre covers | |
GB633903A (en) | Transductor regulator | |
CA450062A (en) | Method of and means for heating articles by high frequency electric current | |
GB620432A (en) | Improvements relating to the heat treatment of strip metal by electromagnetic induction | |
GB641842A (en) | Improvements in, or relating to, the continuous vulcanisation of products or articles in high frequency electric fields | |
GB648027A (en) | Improvements in electric eddy current furnaces | |
GB667839A (en) | Improvements in or relating to high frequency induction heating | |
GB728204A (en) | Improvements in or relating to methods of and devices for high-frequency heating | |
GB686959A (en) | Method of heating longitudinally extending metal articles in electric high frequency induction furnaces | |
SU73176A2 (en) | Method of briquetting bulk materials | |
AU133068B2 (en) | Apparatus and method for heating work bythe use of high frequency electrical energy | |
GB603034A (en) | Improvements in or relating to ironing apparatus | |
GB979069A (en) | Improved process and appliance for the surface treatment of pinions | |
AU210046A (en) | Apparatus and method for heating work bythe use of high frequency electrical energy | |
GB716298A (en) | Method for high-frequency soldering or induction hardening | |
GB768441A (en) | Improvements in and relating to the hardening of iron and steel alloys | |
CA458761A (en) | Method of high frequency induction heating | |
GB606556A (en) | Improvements in apparatus for the treatment of materials by high frequency electric current | |
GB711099A (en) | Improvements in or relating to high-frequency heating | |
GB615779A (en) | Improvements in or relating to high frequency heating equipment | |
GB781444A (en) | Improvements relating to high frequency electrical generators for dielectric heating | |
GB645193A (en) | Method and device for preparing white factis | |
GB712562A (en) | Method and apparatus for thoroughly electrically heating large billets | |
GB683894A (en) | Improvements in and relating to high frequency generators |