GB606401A - Improvements in and relating to the heating and reheating of ferrous metals - Google Patents
Improvements in and relating to the heating and reheating of ferrous metalsInfo
- Publication number
- GB606401A GB606401A GB128246A GB128246A GB606401A GB 606401 A GB606401 A GB 606401A GB 128246 A GB128246 A GB 128246A GB 128246 A GB128246 A GB 128246A GB 606401 A GB606401 A GB 606401A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gas
- combustion
- reheating
- relating
- heating
- 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
- C21D1/76—Adjusting the composition of the atmosphere
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)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
Ferrous materials are heated in a furnace by a two-stage direct combustion of gaseous fuel, firstly by partial combustion of the gas in the charge-containing chamber and secondly by completing combustion in a heat exchanger used to preheat the gas or the air or both, the partially burnt gases being preferably passed direct to the heat exchanger without substantial loss of their sensible heat. Where the calorific value of the gas lies between 380-600 B.T.U. the ratio of air to gas used lies between 2.0 and 2.8 to 1.0 by volume, whereas if the calorific value is from 1,000-1,150 B.T.U. the ratio is 4.7-6.8 to 1.0.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB128246A GB606401A (en) | 1946-01-14 | 1946-01-14 | Improvements in and relating to the heating and reheating of ferrous metals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB128246A GB606401A (en) | 1946-01-14 | 1946-01-14 | Improvements in and relating to the heating and reheating of ferrous metals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB606401A true GB606401A (en) | 1948-08-12 |
Family
ID=9719261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB128246A Expired GB606401A (en) | 1946-01-14 | 1946-01-14 | Improvements in and relating to the heating and reheating of ferrous metals |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB606401A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1089791B (en) * | 1951-11-10 | 1960-09-29 | Frank Anthony Rusciano | Furnace for the heat treatment of metals, especially steel, in a protective gas atmosphere |
| DE1108247B (en) * | 1957-01-12 | 1961-06-08 | Robert Von Linde Dipl Ing | Industrial furnace for protective gas operation |
-
1946
- 1946-01-14 GB GB128246A patent/GB606401A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1089791B (en) * | 1951-11-10 | 1960-09-29 | Frank Anthony Rusciano | Furnace for the heat treatment of metals, especially steel, in a protective gas atmosphere |
| DE1108247B (en) * | 1957-01-12 | 1961-06-08 | Robert Von Linde Dipl Ing | Industrial furnace for protective gas operation |
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