DE641478C - Process for improving the properties, e.g. B. the magnetic properties of sheets or tapes - Google Patents
Process for improving the properties, e.g. B. the magnetic properties of sheets or tapesInfo
- Publication number
- DE641478C DE641478C DEM129225D DEM0129225D DE641478C DE 641478 C DE641478 C DE 641478C DE M129225 D DEM129225 D DE M129225D DE M0129225 D DEM0129225 D DE M0129225D DE 641478 C DE641478 C DE 641478C
- Authority
- DE
- Germany
- Prior art keywords
- properties
- sheets
- hydrogen
- improving
- hydride
- 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 10
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 13
- 239000001257 hydrogen Substances 0.000 claims description 13
- 229910052739 hydrogen Inorganic materials 0.000 claims description 13
- 150000004678 hydrides Chemical class 0.000 claims description 11
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 229910052987 metal hydride Inorganic materials 0.000 claims description 3
- 150000004681 metal hydrides Chemical class 0.000 claims description 3
- 238000000137 annealing Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- CSDQQAQKBAQLLE-UHFFFAOYSA-N 4-(4-chlorophenyl)-4,5,6,7-tetrahydrothieno[3,2-c]pyridine Chemical compound C1=CC(Cl)=CC=C1C1C(C=CS2)=C2CCN1 CSDQQAQKBAQLLE-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-VVKOMZTBSA-N Dideuterium Chemical compound [2H][2H] UFHFLCQGNIYNRP-VVKOMZTBSA-N 0.000 description 1
- YZCKVEUIGOORGS-UHFFFAOYSA-N Hydrogen atom Chemical compound [H] YZCKVEUIGOORGS-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
- 238000005303 weighing 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
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/12—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
- C21D8/1277—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties involving a particular surface treatment
- C21D8/1283—Application of a separating or insulating coating
-
- 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
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/12—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
- C21D8/1244—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the heat treatment(s) being of interest
- C21D8/1255—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the heat treatment(s) being of interest with diffusion of elements, e.g. decarburising, nitriding
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Manufacturing & Machinery (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Description
-Verfahren zur Verbesserung der .Eigenschaften, z. B. der magnetischen Eigenschaften, von Blechen oder Bändern Es ist bekannt, daß die verschiedensten Eigenschaften, z. B. die magnetischen Eigenschaften und die Tiefziehfähigkeit, von Metallen - und Metallegierungen durch Behandeln mit Wasserstoff wesentlich verbessert werden können. Die Wirkung des Wasserstoffes beruht anscheinend darauf, daß er auf Grund seiner großen Diffusionsfähigkeit in die -Werkstoffe eindringt und die schädlichen Verunreinigungen zu gasförmigen Verbindungen reduziert, die nunmehr durch Diffusion entweichen oder an den Korngrenzen austreten können. Die Behandlung geschieht durch Glühen in einer Wasserstoffatmosphäre.-Process to improve the .Properties, z. B. the magnetic Properties of sheets or strips It is known that the most varied Properties, e.g. B. the magnetic properties and deep drawability, of Metals and metal alloys significantly improved by treatment with hydrogen can be. The effect of the hydrogen is apparently based on the fact that it is on Because of its great diffusivity it penetrates into the materials and the harmful ones Impurities are reduced to gaseous compounds, now by diffusion escape or emerge at the grain boundaries. The treatment happens through Glow in a hydrogen atmosphere.
Die: Erfindung beruht auf der an sich bekannten Erkenntnis, daß atomarer Wasserstoff üi statu nascendi -wesentlich reaktionsfähiger ist als der bei dem bekannten Verfahren einwirkende molekulare Wasserstoff H2. Sie besteht darin, daß Metallhydride zwischen gestapelten Blechen und Bändern, z. B. Dynamoblechen, geschichtet und anschließend so hohen Temperaturen ausgesetzt werden, daß das Hydrid zerlegt wird und der Wasserstoff im Entstehungszustande auf den metallischen Werkstoff einwirkt.The: Invention is based on the per se known knowledge that atomic Hydrogen üi statu nascendi - is much more reactive than that of the known Process acting molecular hydrogen H2. It consists in the fact that metal hydrides between stacked sheets and strips, e.g. B. Dynamo sheets, layered and then exposed to such high temperatures that the hydride is decomposed and the hydrogen acts on the metallic material in the state of origin.
Die Ausführung des Verfahrens sei beispielsweise an der Behandlung von Transformatorenblechen zwecks Entfernung von Verunreinigungen, die die Wattverluste herabsetzen, erläutert. Die Bleche werden in einem Glühkasten oder einem gut verschließbaren Ofen übereinandergeschichtet, wobei zwischen die Bleche durch Aufstreuen oder Aufstreichen ein Metallhydrid gegeben wird. Es kann auch zugleich mit dem Hydrid ein indifferenter Stoff, der z. B. Calcium- oder Magnesiumoxyd enthalten kann, zugegeben werden, um ein Verkleben der Bleche zu verhindern. In den meisten Fällen dürfte sich jedoch eine Zugabe eines indifferenten Stoffes, der bekanntlich die austretenden Reaktionsprodukte teilweise aufnimmt und daher sehr vorteilhaft ist, erübrigen, da der Sauerstoffgehalt der Werkstoffe groß genug ist, um die Hydride über das Metall hinaus bis zum Oxyd zu oxydieren. Werden nunmehr die so aufgeschichteten Bleche erhitzt, so geben die Hydride bei einer bestimmten Temperatur, _ für Calciumhydrid etwa 5oo°, den Wasserstoff ab, und die oben geschilderte Wirkung des Wasserstoffes tritt ein.The execution of the procedure is, for example, in the treatment of transformer sheets for the purpose of removing impurities that cause watt losses reduce, explained. The sheets are in an annealing box or a well closable one Oven stacked, with between the trays by sprinkling or brushing a metal hydride is given. It can also be indifferent at the same time as the hydride Substance that z. B. calcium or magnesium oxide may be added to to prevent the sheets from sticking together. In most cases, however, it is likely to an addition of an inert substance, which is known to be the exiting reaction products partially absorbs and is therefore very beneficial, because the oxygen content the material is large enough to move the hydrides beyond the metal to the oxide to oxidize. If the sheets stacked in this way are now heated, they give Hydrides at a certain temperature, _ for calcium hydride about 500 °, the hydrogen from, and the above-described effect of the hydrogen occurs.
Die Vorteile dieses Verfahrens gehen deutlich aus diesem Beispiel hervor: Der Wasserstoff im statu nascendi ist besonders wirksam. Darüber hinaus wird durch die Anwendung fester Hydride noch erreicht, daß die Bleche gleichmäßig, also- auch im Mittelpunkt des Stapels, mit Wasserstoff in Berührung kommen. Die Menge des zugegebenen Wasserstoffes kann durch einfache Wägung des Hydrids leicht geregelt werden. Ein großer Vorteil des Verfahrens liegt noch darin, daß zur Ausführung einfache Glühkästen oder auch abschließbare Öfen benutzt werden können, die nur eine zusätzliche Vorrichtpng zum Ablassen der entstehenden Gase enthalten.-Für die Ausführung des Verfahrens sind grundsätzlich alle Hydride geeignet, die den Wasserstoff bei geeigneten Temperaturen abgeben. Besonders vorteilhaft sind die salzartigen Hydride der Alkalien und Erdalkalien, die Wasserstoff als Ion enthalten.The advantages of this procedure are clear from this example out: The hydrogen in the statu nascendi is particularly effective. Furthermore the use of solid hydrides also ensures that the sheets are uniform, So - also in the center of the stack, come into contact with hydrogen. the The amount of hydrogen added can easily be determined by simply weighing the hydride be managed. Another great advantage of the method is that it can be carried out simple annealing boxes or also lockable ovens are used can that only an additional Vorrichtpng for venting the resulting gases - In principle, all hydrides are suitable for carrying out the process, which release the hydrogen at suitable temperatures. Are particularly advantageous the salt-like hydrides of alkalis and alkaline earths, which contain hydrogen as an ion.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEM129225D DE641478C (en) | 1934-11-18 | 1934-11-18 | Process for improving the properties, e.g. B. the magnetic properties of sheets or tapes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEM129225D DE641478C (en) | 1934-11-18 | 1934-11-18 | Process for improving the properties, e.g. B. the magnetic properties of sheets or tapes |
Publications (1)
Publication Number | Publication Date |
---|---|
DE641478C true DE641478C (en) | 1937-02-01 |
Family
ID=7331686
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEM129225D Expired DE641478C (en) | 1934-11-18 | 1934-11-18 | Process for improving the properties, e.g. B. the magnetic properties of sheets or tapes |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE641478C (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE931411C (en) * | 1940-10-09 | 1955-08-08 | Armco Int Corp | Process to increase the cold formability with low core losses of Si steel sheets |
DE1205573B (en) * | 1960-07-06 | 1965-11-25 | Mannesmann Ag | Process for annealing electrical steel sheets or strips |
DE1210799B (en) * | 1960-03-31 | 1966-02-17 | Continental Oil Co | Process for the production of vinyl fluoride |
-
1934
- 1934-11-18 DE DEM129225D patent/DE641478C/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE931411C (en) * | 1940-10-09 | 1955-08-08 | Armco Int Corp | Process to increase the cold formability with low core losses of Si steel sheets |
DE1210799B (en) * | 1960-03-31 | 1966-02-17 | Continental Oil Co | Process for the production of vinyl fluoride |
DE1205573B (en) * | 1960-07-06 | 1965-11-25 | Mannesmann Ag | Process for annealing electrical steel sheets or strips |
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