GB818759A - A process of and apparatus for the hardening of metals and alloys - Google Patents
A process of and apparatus for the hardening of metals and alloysInfo
- Publication number
- GB818759A GB818759A GB2955456A GB2955456A GB818759A GB 818759 A GB818759 A GB 818759A GB 2955456 A GB2955456 A GB 2955456A GB 2955456 A GB2955456 A GB 2955456A GB 818759 A GB818759 A GB 818759A
- Authority
- GB
- United Kingdom
- Prior art keywords
- per cent
- quenching
- alloys
- metals
- vacuum
- 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
- C21D1/773—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material under reduced pressure or vacuum
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)
- Manufacture And Refinement Of Metals (AREA)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
Abstract
818,759. Heat treating metals in vacuum; steel alloys. DEUTSCHE AKADEMIE DER WISSENSCHAFTEN ZU BERLIN. Sept. 27, 1956, No. 29554/56. Class 72 and 82(1) A method of hardening metals and alloys which can be hardened by heating and quenching, comprises heating the metals in a vacuum and then quenching them in a quenching medium contained in the same vacuum. As shown, the articles 2 may be held in a chamber 4 supported in an electric furnace 3 and connected to a vacuum through a T-piece 5 which also communicates with a container for quenching medium 1. When the articles have attained the desired temperature they are tipped into the quenching bath, which may be cooled. The method may be applied to alloys comprising 1.65 per cent C, 12 per cent Cr, 0.3 per cent Si, 0.3 per cent Mn, 0.1 per cent V or 1.4 per cent C, 3.5 per cent W, 0.3 per cent Cr, 0.3 per cent V, the balance in each case being iron and impurities
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2955456A GB818759A (en) | 1956-09-27 | 1956-09-27 | A process of and apparatus for the hardening of metals and alloys |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2955456A GB818759A (en) | 1956-09-27 | 1956-09-27 | A process of and apparatus for the hardening of metals and alloys |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB818759A true GB818759A (en) | 1959-08-19 |
Family
ID=10293388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2955456A Expired GB818759A (en) | 1956-09-27 | 1956-09-27 | A process of and apparatus for the hardening of metals and alloys |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB818759A (en) |
-
1956
- 1956-09-27 GB GB2955456A patent/GB818759A/en not_active Expired
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