DE904546C - Process for the heat treatment of ferromagnetic materials - Google Patents
Process for the heat treatment of ferromagnetic materialsInfo
- Publication number
- DE904546C DE904546C DEST1316D DEST001316D DE904546C DE 904546 C DE904546 C DE 904546C DE ST1316 D DEST1316 D DE ST1316D DE ST001316 D DEST001316 D DE ST001316D DE 904546 C DE904546 C DE 904546C
- Authority
- DE
- Germany
- Prior art keywords
- steels
- heat treatment
- application
- structural
- ferromagnetic materials
- 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
- 238000000034 method Methods 0.000 title claims description 9
- 238000010438 heat treatment Methods 0.000 title claims description 5
- 230000008569 process Effects 0.000 title description 4
- 239000003302 ferromagnetic material Substances 0.000 title 1
- 229910000831 Steel Inorganic materials 0.000 claims description 13
- 239000010959 steel Substances 0.000 claims description 13
- 230000005291 magnetic effect Effects 0.000 claims description 8
- 229910000734 martensite Inorganic materials 0.000 claims description 5
- 230000009471 action Effects 0.000 claims description 4
- 230000005294 ferromagnetic effect Effects 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 230000008859 change Effects 0.000 claims description 3
- 230000009466 transformation Effects 0.000 claims description 3
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 2
- 238000000844 transformation Methods 0.000 claims description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 230000005298 paramagnetic effect Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
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
- C21D1/04—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering with simultaneous application of supersonic waves, magnetic or electric fields
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 Articles (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Description
Verfahren zur Wärmebehandlung von ferromagnetischen Stoffen Es ist bekannt, die Eigenschaften von Stahl durch magnetische Kraftlinien zu beeinflussen. Man hat Stähle bei Raumtemperatur oder auch bei einer Temperatur von roo° C der Einwirkung von Magnetpolen oder Hochfrequenzströmen unterworfen und dabei bis zu einem gewissen Grad Änderungen der Eigenschaften des Stahles festgestellt.Process for the heat treatment of ferromagnetic substances It is known to influence the properties of steel by magnetic lines of force. You have steels at room temperature or at a temperature of roo ° C Subject to the action of magnetic poles or high frequency currents and thereby up to changes in the properties of the steel were observed to some extent.
Die Erfindung besteht nun darin, die magnetische Einwirkung während der Gefügeumwandlungen, die mit einer Änderung der ferromagnetischen Eigenschaften verbunden sind, insbesondere während der Ä2artensitumwandlung erfolgen zu lassen.The invention now consists in the magnetic action during the structural transformations that result in a change in the ferromagnetic properties are connected, especially during the transformation of the artefacts.
Es war bislang nicht bekannt, daß die Kristallisationsvorgänge der Martensitbildung hinsichtlich Größe und Form der Kristalle heeinflußt werden. Erfindungsgemäß wurde nun erkannt, daß die Martensitbildung, die mit einem Übergang vom paramagnetischen Zustand in den ferromagnetischen Zustand verbunden ist, durch die Einwirkung eines magnetischen Kraftfeldes günstig beeinflußt wird. Der spröde, grobnadelige, kris,tallographisch orientierte Martensit wird unter Einwirkung des magnetischen Kraftfeldes vermieden, und es entsteht ein unorientierter, wenig spröder Martensit, wie bei der Härtung eines Stahles mit r, r o o/o Kohlenstoff, o,25 % Mangan, 0,2590 Silizium, 4o/0 Chrom, II,Soo/o Wolfram, o,6o°/o Molybdän, 2,5% Vanadin nachgewiesen werden konnte. Das Verfahren kann sinngemäß bei der Wärmebehandlung aller Werkstoffe angewandt werden, bei denen Gefügeänderungen vor sich gehen, die mit einer Änderung der magnetischen Eigenschaften verbunden sind, so beispielsweise beim Härten von Werkzeugstählen, Vergüten von Baustählen. Wärmebehandlung von Einsatzstählen oder bei aushärtungsfähigen Stahllegierungen.It was not previously known that the crystallization processes of the Martensite formation can be influenced in terms of size and shape of the crystals. According to the invention it has now been recognized that martensite formation occurs with a transition from paramagnetic State is connected to the ferromagnetic state, by the action of a magnetic force field is favorably influenced. The brittle, coarse-needled, crisp, valley-graphical oriented martensite is avoided under the influence of the magnetic force field, and an unoriented, less brittle martensite is created, as in hardening of a steel with r, r o / o carbon, 0.25% manganese, 0.2590 silicon, 4o / 0 chromium, II, soo / o tungsten, o.6o% molybdenum, 2.5% vanadium could be detected. That The process can be applied analogously to the heat treatment of all materials, in which structural changes take place with a change in the magnetic Properties are connected, for example when hardening tool steels, Quenching and tempering of structural steels. Heat treatment of case-hardening steels or hardenable steels Steel alloys.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEST1316D DE904546C (en) | 1939-04-07 | 1939-04-07 | Process for the heat treatment of ferromagnetic materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEST1316D DE904546C (en) | 1939-04-07 | 1939-04-07 | Process for the heat treatment of ferromagnetic materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE904546C true DE904546C (en) | 1954-02-18 |
Family
ID=7452437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEST1316D Expired DE904546C (en) | 1939-04-07 | 1939-04-07 | Process for the heat treatment of ferromagnetic materials |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE904546C (en) |
-
1939
- 1939-04-07 DE DEST1316D patent/DE904546C/en not_active Expired
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