GB674632A - Improvements in or relating to the heat treatment of metal goods - Google Patents
Improvements in or relating to the heat treatment of metal goodsInfo
- Publication number
- GB674632A GB674632A GB24549A GB24549A GB674632A GB 674632 A GB674632 A GB 674632A GB 24549 A GB24549 A GB 24549A GB 24549 A GB24549 A GB 24549A GB 674632 A GB674632 A GB 674632A
- Authority
- GB
- United Kingdom
- Prior art keywords
- air
- chamber
- work pieces
- temperature
- speed
- 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
- 229910052751 metal Inorganic materials 0.000 title abstract 3
- 239000002184 metal Substances 0.000 title abstract 3
- 238000010438 heat treatment Methods 0.000 title 1
- 238000000137 annealing Methods 0.000 abstract 2
- 239000004411 aluminium Substances 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 abstract 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/06—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and charge; electrically heated
- F27B9/10—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and charge; electrically heated heated by hot air or gas
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Tunnel Furnaces (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
Abstract
674,632. Annealing. BIRLEC, Ltd., and SCHULTE, F. W. K. April 5, 1950 [Jan. 5, 1949], No. 245/49. Class 72 [Also in Group XII] In a method of heat-treating metal goods, the work pieces are passed continuously through a treatment chamber supplied with a circulating gas heated to a temperature in excess of that to which the work pieces are to be heated, at such a speed that they do not even locally overheat despite the relatively high temperature of the circulating gas. As shown, applied to the annealing of aluminium sheet or discs, the articles are conveyed by an endless belt 10 through a shallow treating chamber. A fan 8 draws air from one end 6 of the chamber and discharges it, through a heater 7, into the other end, the temperature of the air being controlled by a thermocouple 17, and the speed of the air by a thermocouple 18 at the fan inlet. The air may be supplied to the chamber at 700- 800‹C. and removed from the chamber at 100-300‹C. below the entry temperature, the speed of the conveyer being such that the work pieces are discharged at 450‹C. The time of treatment may be 1-3 minutes per millimetre thickness of metal. The work pieces may be removed in the direction of flow of the air or in the opposite direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB24549A GB674632A (en) | 1949-01-05 | 1949-01-05 | Improvements in or relating to the heat treatment of metal goods |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB24549A GB674632A (en) | 1949-01-05 | 1949-01-05 | Improvements in or relating to the heat treatment of metal goods |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB674632A true GB674632A (en) | 1952-06-25 |
Family
ID=9700982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB24549A Expired GB674632A (en) | 1949-01-05 | 1949-01-05 | Improvements in or relating to the heat treatment of metal goods |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB674632A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2450284A1 (en) * | 1979-03-01 | 1980-09-26 | Elhaus Friedrich W | METHOD AND DEVICE FOR CONTINUOUS THERMAL TREATMENT OF LONG, INSULATED METAL OBJECTS |
-
1949
- 1949-01-05 GB GB24549A patent/GB674632A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2450284A1 (en) * | 1979-03-01 | 1980-09-26 | Elhaus Friedrich W | METHOD AND DEVICE FOR CONTINUOUS THERMAL TREATMENT OF LONG, INSULATED METAL OBJECTS |
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