DE162368C - - Google Patents
Info
- Publication number
- DE162368C DE162368C DENDAT162368D DE162368DA DE162368C DE 162368 C DE162368 C DE 162368C DE NDAT162368 D DENDAT162368 D DE NDAT162368D DE 162368D A DE162368D A DE 162368DA DE 162368 C DE162368 C DE 162368C
- Authority
- DE
- Germany
- Prior art keywords
- heated
- cooled
- alloys
- temperature
- steel alloys
- 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.)
- Active
Links
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 5
- 229910045601 alloy Inorganic materials 0.000 claims description 5
- 239000000956 alloy Substances 0.000 claims description 5
- 238000002844 melting Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 238000010583 slow cooling Methods 0.000 claims description 2
- 229910000976 Electrical steel Inorganic materials 0.000 claims 1
- 239000000463 material Substances 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- REDXJYDRNCIFBQ-UHFFFAOYSA-N aluminium(3+) Chemical class [Al+3] REDXJYDRNCIFBQ-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000000875 corresponding Effects 0.000 description 1
- 230000002708 enhancing Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 238000007669 thermal treatment Methods 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
- C21D1/78—Combined heat-treatments not provided for above
-
- 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)
- Soft Magnetic Materials (AREA)
- Manufacturing Of Steel Electrode Plates (AREA)
Description
PATENTSCHRIFTPATENT LETTERING
- M 162368 KLASSE- M 162368 CLASS
ROBERT ABBOTT HADFIELD in SHEFFIELD.ROBERT ABBOTT HADFIELD in SHEFFIELD.
° ■ ° ° ° 14. Dezember igoo ° ■ ° ° ° December 14th igoo
auf Grund der Anmeldung in Amerika vom 12. Juni 1903 anerkannt.recognized on the basis of registration in America on June 12, 1903.
Es ist bekannt, daß Stahl mit einem Zusatz von Silicium, Aluminium oder Phosphor sich besonders für die Verwendung in verschiedenen elektrischen Apparaten, wie z. B. Drosselspulen, Transformatorenplatten und ähnlichen Vorrichtungen, eignet, da er eine besonders hohe Permeabilität und einen hohen elektrischen Widerstand sowie geringe Hysteresis aufweist. Man hat ferner bereits darauf hingewiesen, daß es sich empfiehlt, diese Stahllegierungen zweeks Vervollkommnung der magnetischen und elektrischen Eigenschaften bis auf eine verhältnismäßig niedrige Temperatur, etwa 800°, zu erhitzen und sie eine hinreichende Zeit auf dieser Temperatur zu erhalten.It is known that steel with an addition of silicon, aluminum or phosphorus is especially for use in various electrical devices such as B. Reactors, transformer plates and similar devices, is suitable because it is a particularly high permeability and high electrical resistance as well as low Has hysteresis. It has also already been pointed out that it is advisable to these steel alloys for the purpose of perfecting the magnetic and electrical Properties to heat up to a relatively low temperature, about 800 ° and to keep them at that temperature for a sufficient period of time.
Gegenstand der vorliegenden Erfindung ist nun ein Verfahren zur Behandlung der genannten Stahllegierungen, durch welches die wertvollen magnetischen und elektrischen Eigenschaften der Legierungen noch weiter verbessert werden. Im Gegensatz zu der bereits vorgeschlagenen einmaligen thermischen Behandlung des Materials zeichnet sich das neue Verfahren durch ein wiederholtes Erhitzen und Kühlen des Materials aus.The present invention now relates to a method for treating the aforementioned Steel alloys, which further enhance the valuable magnetic and electrical properties of the alloys be improved. In contrast to the already proposed one-time thermal Treatment of the material, the new method is characterized by repeated heating and cooling the material.
Das neue Verfahren besteht der Erfindung gemäß darin, daß die Legierungen !zunächst bis zu einer verhältnismäßig hoher! Temperatur unterhalb der Schmelztemperatur erhitzt, dann abgekühlt und darauf wieder erhitzt werden bis zu einer Temperatur unterhalb der zuerst verwendeten, worauf eine langsame Abkühlung bewerkstelligt wird.According to the invention, the new method consists in that the alloys! up to a relatively high one! temperature heated below the melting temperature, then cooled and then heated again are down to a temperature below that used first, whereupon a slow cooling is effected.
Als besonders zweckmäßig hat sich nachstehende Behandlung des Materials erwiesen:The following treatment of the material has proven to be particularly useful:
Zuerst wird das Material zwischen ungefähr 900 und Iioo0 C. erhitzt, worauf man es abkühlen läßt, und zwar vorzugsweise schnell. Dann wird das Material wieder bis auf ungefähr 700 bis 8500 C. erhitzt, also bis zu einer Temperatur, welche niedriger ist als die während der ersten Erhitzung erreichte, worauf das Metall sehr langsam abgekühlt wird. In der Praxis wurde diese Abkühlung oft mehrere Tage lang bewerkstelligt. Entweder eine oder beide Behandlungen können häufig wiederholt werden, oder es kann, nachdem die erste Behandlung beendet ist, die zweite Art des Erhitzens häufiger wiederholt werden. Bei Versuchen wurde z. B. eine Stahllegierung von 2,75 Prozent Silicium, 0,07 Prozent Kohlenstoff, 0,08 Prozent Mangan, 0,03 Prozent Schwefel und 0,03 Prozent Phosphor auf 10700 C. erhitzt und hierauf schnell bis auf die Temperatur der Atmosphäre abgekühlt, worauf die Legierung -wieder bis auf 7500 erhitzt, langsam abgekühlt, wieder auf 8oo° C. erhitzt und alsdann wiederum langsam abgekühlt wurde.First, the material between about 900 and is heated iioo 0 C., then allowed to cool, preferably quickly. The material is then heated again to approximately 700 to 850 ° C., that is to say to a temperature which is lower than that reached during the first heating, whereupon the metal is cooled very slowly. In practice, this cooling was often accomplished over several days. Either or both treatments can be repeated frequently, or after the first treatment is finished, the second type of heating can be repeated more frequently. In experiments, for. B. a steel alloy of 2.75 percent silicon, 0.07 percent carbon, 0.08 percent manganese, 0.03 percent sulfur and 0.03 percent phosphorus heated to 1070 ° C. and then quickly cooled down to the temperature of the atmosphere was again cooled slowly heated and then the alloy -again up to 750 0, slowly cooled, reheated to 8oo ° C. and then.
Es wurde gefunden, daß es zur Erzielung der besten Resultate von großer WichtigkeitIt has been found to be of great importance for obtaining the best results
1010
ist, die genauen Temperaturen zu verwenden, welche diesen Resultaten entsprechen; es müssen daher sorgfältige Pyrometerablesungen zu diesem Zweck gemacht werden. Das auf diese .Weise behandelte Material besitzt eine größere magnetische Permeabilität und eine geringere Hysteresiskonstante als irgend ein magnetischer Körper, von dem bis jetzt diese Daten zu erhalten waren, und zwar einschließlich des reinsten Eisens, welches zu erlangen is to use the exact temperatures corresponding to these results; it careful pyrometer readings must therefore be taken for this purpose. That on This .We treated material has a greater magnetic permeability and a lower hysteresis constant than any magnetic body of which so far this Data were to be obtained, including the purest iron which could be obtained
■urn*· 'V■ urn * · 'V
war.was.
»5»5
Claims (2)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE162368C true DE162368C (en) |
Family
ID=428170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT162368D Active DE162368C (en) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE162368C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE927692C (en) * | 1940-10-08 | 1955-05-16 | Eisen & Stahlind Ag | The use of iron-silicon alloys as a material for magnetically stressed objects |
| DE932618C (en) * | 1941-07-23 | 1955-09-05 | Eisen & Stahlind Ag | The use of iron-silicon alloys as a material for magnetically stressed objects |
-
0
- DE DENDAT162368D patent/DE162368C/de active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE927692C (en) * | 1940-10-08 | 1955-05-16 | Eisen & Stahlind Ag | The use of iron-silicon alloys as a material for magnetically stressed objects |
| DE932618C (en) * | 1941-07-23 | 1955-09-05 | Eisen & Stahlind Ag | The use of iron-silicon alloys as a material for magnetically stressed objects |
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