GB404797A - Improvements in or relating to the heat-treatment of manganese hard steel objects - Google Patents
Improvements in or relating to the heat-treatment of manganese hard steel objectsInfo
- Publication number
- GB404797A GB404797A GB3421232A GB3421232A GB404797A GB 404797 A GB404797 A GB 404797A GB 3421232 A GB3421232 A GB 3421232A GB 3421232 A GB3421232 A GB 3421232A GB 404797 A GB404797 A GB 404797A
- Authority
- GB
- United Kingdom
- Prior art keywords
- jaw
- crusher
- treatment
- heat
- cooled
- 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
- C21D6/00—Heat treatment of ferrous alloys
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)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Crushing And Grinding (AREA)
Abstract
404,797. Heat-treating manganese steel ; crusher jaws. JACKSON, L. MELLERSH-, 28, Southampton Buildings, London.-(Krupp Grusonwerk Akt.-Ges., F. ; Buckau, Magdeburg, Germany.) Dec. 2, 1932, No. 34212. [Classes 59 and 72.] In the heat treatment of articles of manganese steel, the whole article is heated to at least 1000‹ C. and the portions of the article which in practice are subjected to pressure and wear are then cooled down slowly by means of compressed air, steam or other gently acting cooling medium so as to produce an austeritic carbide structure in those parts and the whole article is then quenched. The parts of the articles are generally cooled to below 920‹ C. before quenching. As applied to the treatment of a crusher jaw, the jaw 6 heated to about 1000‹ C. is placed on rollers 4 mounted in a box 5, and the teeth of the jaw are cooled by compressed air issuing from holes 2 in the upper surface of a box 1 connected to a supply conduit 3. The temperature of the other side of the crusher is kept at at least 1000‹ C. and when the teeth have cooled down to below 920‹ C., the whole jaw is quenched, thus producing a tough austenitic rear side and have teoth having a hard austeritic carbide structure which may also contain martensite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3421232A GB404797A (en) | 1932-12-02 | 1932-12-02 | Improvements in or relating to the heat-treatment of manganese hard steel objects |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3421232A GB404797A (en) | 1932-12-02 | 1932-12-02 | Improvements in or relating to the heat-treatment of manganese hard steel objects |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB404797A true GB404797A (en) | 1934-01-25 |
Family
ID=10362794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3421232A Expired GB404797A (en) | 1932-12-02 | 1932-12-02 | Improvements in or relating to the heat-treatment of manganese hard steel objects |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB404797A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0091897A1 (en) * | 1982-04-13 | 1983-10-19 | Voest-Alpine Stahl Aktiengesellschaft | Strain hardening austenitic manganese steel and process for the manufacture thereof |
| CZ307345B6 (en) * | 2016-12-29 | 2018-06-20 | Západočeská Univerzita V Plzni | A method of manufacturing parts by means of interrupted hardening |
-
1932
- 1932-12-02 GB GB3421232A patent/GB404797A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0091897A1 (en) * | 1982-04-13 | 1983-10-19 | Voest-Alpine Stahl Aktiengesellschaft | Strain hardening austenitic manganese steel and process for the manufacture thereof |
| CZ307345B6 (en) * | 2016-12-29 | 2018-06-20 | Západočeská Univerzita V Plzni | A method of manufacturing parts by means of interrupted hardening |
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