DE868522C - Process for the production of pure metal sheet - Google Patents

Process for the production of pure metal sheet

Info

Publication number
DE868522C
DE868522C DEF5411A DEF0005411A DE868522C DE 868522 C DE868522 C DE 868522C DE F5411 A DEF5411 A DE F5411A DE F0005411 A DEF0005411 A DE F0005411A DE 868522 C DE868522 C DE 868522C
Authority
DE
Germany
Prior art keywords
production
metal sheet
pure metal
metals
rolling
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
DEF5411A
Other languages
German (de)
Inventor
Hermann Dr Franssen
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DEF5411A priority Critical patent/DE868522C/en
Application granted granted Critical
Publication of DE868522C publication Critical patent/DE868522C/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/18Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by using pressure rollers

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Powder Metallurgy (AREA)

Description

Verfahren zur Herstellung von Reinstmetallblech Die bi-sher bekanntgewordenen Verfahren zur Herstellung reinsterMetalle sind vielfach umständlich und unsicher in ihrer Handhabung. So ist z. B. eine Schwierigkeit -bei der Herstellung von Bändern aus Elektrolytl<upfer (darin zu isehe#n, daß die Herstellung des als Vormaterial dienenden Gußblockes nur unter außerordentlich schwierigen Umständen sauerstofffrei zu bmerkstelligen ist. Bekanntlich setzen aber selbst Spuren von Sauerstoff im Kupfer die Leitfähigkeit desselben um beträchtliche Werte herab. Ebenso ist -die Herstellung etwa von Wolf.-ra;mblechen infolge der Schwierigkeiten, die sich durch den außerordentlich hohen Schmelzpunkt des Wolframs ergeben, nicht einfach. Die Herstellung von Eisenbändern aus Reinsteisen ist wegen. der großen Neigung des Eisens zur Oxydation nur nach dem bis-her bekanntenVerfahren im Vakuum durchführbar. So bietet allgemein die Herstellung von Blechen aus Reinstmetallen Schwierigkeiten bei jedem Arbeitsvorgang.Process for the production of high-purity metal sheet The ones that have become known until now Processes for the production of the purest metals are often cumbersome and unsafe in their handling. So is z. B. One difficulty - in the production of tapes from electrolyte copper (it can be seen that the production of the as a starting material The casting block used is oxygen-free only under extremely difficult circumstances is to be noted. As is well known, however, there are even traces of oxygen in the copper the conductivity of the same by considerable values. Production is the same about von Wolf.-ra; mblechen as a result of the difficulties which arise from the extraordinarily result in a high melting point of tungsten, not easy. The manufacture of iron bands Reinsteisen is because of. only after the great tendency of iron to oxidize the previously known method can be carried out in a vacuum. So generally offers the manufacture of sheets made of pure metals Difficulties in every work process.

Nach der Erfindung ist die Herstellung solcher reinster 'Metalle in Bandform dadurch in einfacher Weise möglich,daß mandieselben auf pulvermetallurgischem Wege so durchführt, daß man das gewünschte keinstmetallpulver gegebenenfalls unter Schutzgas zu einem zunächst porösen endlosen Band in an sich bekannter Weise verwalzt. Durch Zwischen-glühung unter geeigneten Schutzgasen, etwa Spaltgas, Wasserstoff oder Edelgasen u.sw., ist sodann eine absolut einwandfreie Sinterung und Glühbehandlung möglich, -welche jede Verunreinigung auszuschließen in -,der Lage ist. Durch anschließende Walzbehandlung ist es möglich"das zunächst poröse Band zu einem (dichtesten Werkstoff zusammenzudrücken und ihm in- enisprechenden anschließenden Glühbehandlungen die gewünschten physikalischen Eigenschaften zu verleihen. Dabei kann,dadurch, daß sämtlicheWalzbehandlungen nur in kaltem Zustand, gegebenenf alls unter Schutzgas, vorgenommen werden, jede Verunreinigung"durch Sauerstoff usw. verhindert werden. Die auf'diese Weise hergestellten Bänder erreichen nicht nur die Eigenschaften der bisher hergestellten Reinstmetalle, sondern sind bisweilen in ihr-en Kennwerten diesen nicht unerheblich Überlegen.According to the invention, the production of such purest metals in strip form is possible in a simple manner that they are carried out by powder metallurgy so that the desired non-metallic powder is rolled in a manner known per se, optionally under protective gas, to form an initially porous endless strip. Through intermediate annealing under suitable protective gases, such as cracked gas, hydrogen or noble gases, etc., an absolutely flawless sintering and annealing treatment is then possible, which can exclude any contamination. Subsequent rolling treatment makes it possible to compress the initially porous strip into a material that is as dense as possible and to give it the desired physical properties in subsequent annealing treatments "Any contamination" by oxygen etc. can be prevented. The strips produced in this way not only achieve the properties of the high-purity metals produced up to now, but are sometimes not insignificantly superior in their characteristics.

Claims (1)

PATENTANSPRUCH: Verf a!hren'zur Herstellung von Metallblech höchster Reinheit auf pulvermetallurgischem Wege durch Verwalzen der Ausgangspulver zu Bündern, dadurch gekennzeichnet, daß das gewalzte Band in Schutzgasatmosphäre gesintert und anschließend gegebenenfalls unter Glühbehandlung und notfalls unter Anwesenheit von-Schutzgasen weiteren Walzbehandlungen unterworfen wird. PATENT CLAIM: Process for the production of sheet metal of the highest purity by powder metallurgy by rolling the starting powder into bundles, characterized in that the rolled strip is sintered in a protective gas atmosphere and then optionally subjected to further rolling treatments with annealing treatment and, if necessary, in the presence of protective gases.
DEF5411A 1951-01-16 1951-01-16 Process for the production of pure metal sheet Expired DE868522C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEF5411A DE868522C (en) 1951-01-16 1951-01-16 Process for the production of pure metal sheet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF5411A DE868522C (en) 1951-01-16 1951-01-16 Process for the production of pure metal sheet

Publications (1)

Publication Number Publication Date
DE868522C true DE868522C (en) 1953-02-26

Family

ID=7084572

Family Applications (1)

Application Number Title Priority Date Filing Date
DEF5411A Expired DE868522C (en) 1951-01-16 1951-01-16 Process for the production of pure metal sheet

Country Status (1)

Country Link
DE (1) DE868522C (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1022885B (en) * 1955-07-30 1958-01-16 Sundwiger Messingwerk Vorm Geb Process for the production of copper tapes
DE1027041B (en) * 1954-04-15 1958-03-27 Chemetals Corp Process for the manufacture of rolled products from metal powder
DE1132572B (en) * 1956-01-21 1962-07-05 Heinz Schmalz Dr Ing Process for the powder metallurgical production of preformed parts for the production of bullet casings
DE1213620B (en) * 1954-06-11 1966-03-31 Mannesmann Ag Application of a process for the production of spattered metal powder on high-alloy steel

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1027041B (en) * 1954-04-15 1958-03-27 Chemetals Corp Process for the manufacture of rolled products from metal powder
DE1213620B (en) * 1954-06-11 1966-03-31 Mannesmann Ag Application of a process for the production of spattered metal powder on high-alloy steel
DE1022885B (en) * 1955-07-30 1958-01-16 Sundwiger Messingwerk Vorm Geb Process for the production of copper tapes
DE1132572B (en) * 1956-01-21 1962-07-05 Heinz Schmalz Dr Ing Process for the powder metallurgical production of preformed parts for the production of bullet casings

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