GB403170A - Process of and apparatus for bright-annealing metals - Google Patents
Process of and apparatus for bright-annealing metalsInfo
- Publication number
- GB403170A GB403170A GB21778/32A GB2177832A GB403170A GB 403170 A GB403170 A GB 403170A GB 21778/32 A GB21778/32 A GB 21778/32A GB 2177832 A GB2177832 A GB 2177832A GB 403170 A GB403170 A GB 403170A
- Authority
- GB
- United Kingdom
- Prior art keywords
- annealing
- box
- metals
- germany
- aug
- 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
-
- 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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0006—Details, accessories not peculiar to any of the following furnaces
- C21D9/0025—Supports; Baskets; Containers; Covers
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)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
403,170. Annealing ; annealing-boxes. VEREINIGTE STAHLWERKE AKT.-GES., 67, Breitestrasse, Diisseldorf, Germany.- (Assignees of Schmitz, A.; 6, Bergstrasse, Husten, Westphalia, Germany.) Aug. 3, 1932, No. 21778. Convention date, Aug. 4, 1931. [Class 72.] In the bright annealing of metals, especially sheets, a protective gas such as coke-oven or producer gas is introduced at various points of the annealing-box only after the metals have cooled below the annealing temperature and preferably down to about 400‹ C. The protective gas is purified before entry into the annealing box by passing it over a heated contact substance which removes the oxygen therein. In one form of apparatus, Fig. 2, the lower rim of the annealing cover 6 is provided with a pipe 7 having uniformly distributed orifices 8 through which the gas enters the box. In another form, Fig. 5, the pipe 7 with orifices therein is disposed below the annealing stand 10.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE403170X | 1931-08-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB403170A true GB403170A (en) | 1933-12-21 |
Family
ID=6415736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB21778/32A Expired GB403170A (en) | 1931-08-04 | 1932-08-03 | Process of and apparatus for bright-annealing metals |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB403170A (en) |
-
1932
- 1932-08-03 GB GB21778/32A patent/GB403170A/en not_active Expired
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