GB947437A - Improvements relating to the control of the supply of process gas to a furnace - Google Patents
Improvements relating to the control of the supply of process gas to a furnaceInfo
- Publication number
- GB947437A GB947437A GB268462A GB268462A GB947437A GB 947437 A GB947437 A GB 947437A GB 268462 A GB268462 A GB 268462A GB 268462 A GB268462 A GB 268462A GB 947437 A GB947437 A GB 947437A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valves
- furnace
- furnace chamber
- preserve
- lock
- 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
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 Housings, Linings, Walls, And Ceilings (AREA)
- Furnace Details (AREA)
Abstract
947,437. Continuous heat treatment furnaces. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Dec. 6, 1962 [Jan. 24, 1962], No. 2684/62. Heading F4B. In a continuous heat treatment furnace having locks 5, 6 furnished respectively with pairs of doors 8, 9 and 10, 11 and supplied with atmosphere gas under pressure by a pipe 2, connections 3, 4 with the respective locks and offtakes 7, 8 therefrom are controlled by valves 12, 13 and 14, 15 interconnected to work oppositely and to maintain a substantially constant pressure of gas in the furnace chamber 1. Under normal working conditions the valves are positioned as shown by 12 and 13, the latter being closed sufficiently to preserve the required pressure in the furnace chamber 1 and lock 5. On charging or discharging a lock the valves are positioned as shown by 14 and 15, valve 14 being closed sufficiently to preserve the required pressure in the furnace chamber 1, in which position the outer door 11 (or 8) may be opened. Movements of the valves may be synchronized with those of the outer doors by contacts on the valve-change handles 16 actuating known electro -hydraulic door-operating devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB268462A GB947437A (en) | 1962-01-24 | 1962-01-24 | Improvements relating to the control of the supply of process gas to a furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB268462A GB947437A (en) | 1962-01-24 | 1962-01-24 | Improvements relating to the control of the supply of process gas to a furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB947437A true GB947437A (en) | 1964-01-22 |
Family
ID=9743965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB268462A Expired GB947437A (en) | 1962-01-24 | 1962-01-24 | Improvements relating to the control of the supply of process gas to a furnace |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB947437A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2423544A1 (en) * | 1978-04-20 | 1979-11-16 | Allegheny Ludlum Ind Inc | STEEL annealing method and apparatus |
-
1962
- 1962-01-24 GB GB268462A patent/GB947437A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2423544A1 (en) * | 1978-04-20 | 1979-11-16 | Allegheny Ludlum Ind Inc | STEEL annealing method and apparatus |
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