GB519675A - Improvements in, or relating to, furnaces - Google Patents
Improvements in, or relating to, furnacesInfo
- Publication number
- GB519675A GB519675A GB2749538A GB2749538A GB519675A GB 519675 A GB519675 A GB 519675A GB 2749538 A GB2749538 A GB 2749538A GB 2749538 A GB2749538 A GB 2749538A GB 519675 A GB519675 A GB 519675A
- Authority
- GB
- United Kingdom
- Prior art keywords
- heating
- chamber
- fan
- centre
- gases
- 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
- C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
- C21D1/767—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material with forced gas circulation; Reheating thereof
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)
- Furnace Details (AREA)
Abstract
519,675. Continuous-furnaces. BIRMINGHAM ELECTRIC FURNACES, Ltd., and LOBLEY, A. G. Sept. 21, 1938, No. 27495. [Class 51 (ii)] In a furnace in which a charge is passed continuously through a heating or cooling chamber air or gas currents are caused to flow by forced circulation in opposite direction through different portions of the heating or cooling chamber so as to produce a pressure substantially atmospheric at each end thereof. Fig. 1 shows a heating chamber a of a continuous electric furnace with a fan e at the centre drawing gases through ports e<2> at each end of the furnace and through passages h having electric or other heating means for the gases and discharging them at the centre through a port f. Dampers k control the gases. Fig. 2 shows a cooling chamber b. The fan e<1> drives gases from the ends of the chamber through ports f<2> and passages having cooling tubes and delivers them at the centre of the chamber b through a port f<1>. Instead of one fan being used at the centre a fan may be placed at each end of the heating or cooling chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2749538A GB519675A (en) | 1938-09-21 | 1938-09-21 | Improvements in, or relating to, furnaces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2749538A GB519675A (en) | 1938-09-21 | 1938-09-21 | Improvements in, or relating to, furnaces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB519675A true GB519675A (en) | 1940-04-03 |
Family
ID=10260513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2749538A Expired GB519675A (en) | 1938-09-21 | 1938-09-21 | Improvements in, or relating to, furnaces |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB519675A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE885681C (en) * | 1949-07-04 | 1953-08-06 | Werner & Pfleiderer | Traveling stove-oven heating |
-
1938
- 1938-09-21 GB GB2749538A patent/GB519675A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE885681C (en) * | 1949-07-04 | 1953-08-06 | Werner & Pfleiderer | Traveling stove-oven heating |
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