DE842818C - Iron powder for magnet coils - Google Patents

Iron powder for magnet coils

Info

Publication number
DE842818C
DE842818C DEM8194A DEM0008194A DE842818C DE 842818 C DE842818 C DE 842818C DE M8194 A DEM8194 A DE M8194A DE M0008194 A DEM0008194 A DE M0008194A DE 842818 C DE842818 C DE 842818C
Authority
DE
Germany
Prior art keywords
iron powder
phosphorus
iron
magnet coils
arsenic
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
Application number
DEM8194A
Other languages
German (de)
Inventor
Gerhard Dr-Ing Naeser
Werner Dr-Ing Scholz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vodafone GmbH
Original Assignee
Mannesmann AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mannesmann AG filed Critical Mannesmann AG
Priority to DEM8194A priority Critical patent/DE842818C/en
Application granted granted Critical
Publication of DE842818C publication Critical patent/DE842818C/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C33/00—Making ferrous alloys
    • C22C33/02—Making ferrous alloys by powder metallurgy

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)

Description

Eisenpulver für Magnetspulen Die Kerne von Magnetspulen für die Fernmelde-und Radiotechnik werden fast ausschließlich aus Carbonyleisenpulver durch Pressen angefertigt. Die technisch viel wirtschaftlich-er als Carbonyleisen durch Zerstäuben einer Schmelze herstellbaren Eisenpulver konnten sich für den genannten Zweck bisher nicht einführen, weil sie nicht den nötigen Reinheitsgrad oder nicht die erforderliche Kugelform des Einzelkorns aufweisen. Letzteres gilt für Pulver aus den mit Silicium oder Aluminium legierten weichen Stahlsorten.Iron powder for magnetic coils The cores of magnetic coils for telecommunications and Radiotechnology is made almost exclusively from carbonyl iron powder by pressing. Technically much more economical than carbonyl iron by atomizing a melt manufacturable iron powder could not be introduced for the mentioned purpose so far, because they do not have the required degree of purity or the required spherical shape of the single grain. The latter applies to powders made from those containing silicon or aluminum alloyed soft steel grades.

Erfindungsgemäß gelingt die Herstellung von Pulver mit den erforderlichen magnetischen Eigenschaften sowie mit der notwendigen kugeligen Kornform, wenn die zu zerstäubenden und an Beimengungen armenEisenschmelzen mit o,i bis 5%Phosphor und/oder Arsen legiert sind. Aus solchen Legierungen erhält man Pulver, die im Gegensatz zu den spratzigen -,#lumiiiiutn- oder Siliciumstahlpulvern ausschließlich ans kugeligen Körnern bestehen. Das für phosphorhaltiges Pulver benötigte Eisen läßt sich besonders wirtschaftlich im Thomaskonverter durch vorzeitiges Abbrechen des Blasvorgangs herstellen. Außer Phosphor und/oder Arsen hat das Pulver etwa folgende Zusammensetzung: 0,03 bis o,iO/o Kohlenstoff, unter 0,05016 Silicium, unter o,iO/o Mangan, unter o,o5"/o Schwefel, Rest Eisen.According to the invention, the production of powder with the necessary magnetic properties and with the necessary spherical grain shape is possible if the iron melts to be atomized and low in admixtures are alloyed with 0.1 to 5% phosphorus and / or arsenic. From such alloys one obtains powders which, in contrast to the spattered, # lumiiiiutn or silicon steel powders, consist exclusively of spherical grains. The iron required for powder containing phosphorus can be produced particularly economically in the Thomaskonverter by breaking off the blowing process prematurely. In addition to phosphorus and / or arsenic, the powder has roughly the following composition: 0.03 to 0.18 / o carbon, below 0.05016 silicon, below 0.05016 manganese, below 0.05 "/ o sulfur, the remainder being iron.

Claims (2)

PATENTANSPRÜCHE: i. Eisenpulver für Magnetspulen, hergestellt durch Zerstäuben einer an Beimengungen armen Eisenschmelze, die mit Phosphor und/oder Arsen in Höhe von o,i bis 5 % einzeln oder gemeinsam legiert ist. PATENT CLAIMS: i. Iron powder for magnet coils, produced by atomizing an iron melt which is poor in admixtures and which is individually or jointly alloyed with phosphorus and / or arsenic in the amount of 0.1 to 5%. 2. Verfahren zur Herstellung einer mit Phosphor und/oder Arsen gemäß Anspruch i legierten Eisenschmelze, dadurch gekennzeichnet, daß der Phosphor- und/oder Arsengehalt einer Thomasschmelze durch vorzeitiges Abbrechen des Frischvorganges erhöht wird. t#2. Procedure for the production of an iron melt alloyed with phosphorus and / or arsenic according to claim i, characterized in that the phosphorus and / or arsenic content of a Thomas melt is increased by premature termination of the freshening process. t #
DEM8194A 1951-01-10 1951-01-10 Iron powder for magnet coils Expired DE842818C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEM8194A DE842818C (en) 1951-01-10 1951-01-10 Iron powder for magnet coils

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEM8194A DE842818C (en) 1951-01-10 1951-01-10 Iron powder for magnet coils

Publications (1)

Publication Number Publication Date
DE842818C true DE842818C (en) 1952-07-03

Family

ID=7294065

Family Applications (1)

Application Number Title Priority Date Filing Date
DEM8194A Expired DE842818C (en) 1951-01-10 1951-01-10 Iron powder for magnet coils

Country Status (1)

Country Link
DE (1) DE842818C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2404679A1 (en) * 1977-10-03 1979-04-27 Allegheny Ludlum Ind Inc PROCESS FOR PREPARING A SOFT MAGNETIC MATERIAL CONTAINING PHOSPHORUS, AND PRODUCT OBTAINED BY THE PROCESS

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2404679A1 (en) * 1977-10-03 1979-04-27 Allegheny Ludlum Ind Inc PROCESS FOR PREPARING A SOFT MAGNETIC MATERIAL CONTAINING PHOSPHORUS, AND PRODUCT OBTAINED BY THE PROCESS

Similar Documents

Publication Publication Date Title
DE842818C (en) Iron powder for magnet coils
US3295963A (en) Alloys containing rare earth metals
DE927259C (en) Oxydic ferromagnetic material
US2814559A (en) Process for the production of nodular cast iron
US2676097A (en) Composition for addition to cast iron or steel
US4131456A (en) Chill-free foundry iron
DE836567C (en) Use of copper-silicon-zinc alloys for bells, bells and similar long devices
DE1758004B1 (en) Use of silicon dioxide as a nucleating melt additive in cast iron
US2757082A (en) Method for producing magnesium containing cast iron
DE2823913B2 (en) Modifying agent for pig iron and process for its application
DE867862C (en) Process for the production of permanent magnet materials on the basis of iron-nickel-aluminum-cobalt
DE926254C (en) Cast steel alloy
DE519066C (en) Iron-silicon alloys
AT150283B (en) Process for the production of gray pig iron from white or mottled pig iron.
TH2001003731A (en) Cast iron inoculators and methods for the production of cast iron inoculators
DE359780C (en) Process for the extraction of high percentage pure ferrosilicon
DE1009650B (en) Process for the manufacture of foundry iron that is cast on the casting machine
DE818122C (en) Copper alloy with increased silicon content
US2860971A (en) Titanium base alloys
AT201639B (en) Preparations for treating molten ferrous metals
DE969312C (en) Process for the production of a cast iron in which the graphite is present exclusively as spheroidal graphite
DE1758004C (en) Use of silicon dioxide as a nucleating melt additive in cast iron
CH313007A (en) Master alloy intended for introduction into cast iron melts for the manufacture of spherulitic cast iron
DE924271C (en) Manufacture of sintered permanent magnets
DE1558524A1 (en) Process for the production of inoculating alloys for cast iron melts