DE741982C - Procedure for the identification of light metals and their alloys - Google Patents

Procedure for the identification of light metals and their alloys

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Publication number
DE741982C
DE741982C DEN45753D DEN0045753D DE741982C DE 741982 C DE741982 C DE 741982C DE N45753 D DEN45753 D DE N45753D DE N0045753 D DEN0045753 D DE N0045753D DE 741982 C DE741982 C DE 741982C
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DE
Germany
Prior art keywords
alloys
electrolyte
pole
carbon
procedure
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
DEN45753D
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German (de)
Inventor
Dr-Ing Moritz Niessner
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.)
MORITZ NIESSNER DR ING
Original Assignee
MORITZ NIESSNER DR ING
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.)
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Publication date
Application filed by MORITZ NIESSNER DR ING filed Critical MORITZ NIESSNER DR ING
Priority to DEN45753D priority Critical patent/DE741982C/en
Application granted granted Critical
Publication of DE741982C publication Critical patent/DE741982C/en
Expired legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
    • G01N27/416—Systems
    • G01N27/4166—Systems measuring a particular property of an electrolyte
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/20—Metals
    • G01N33/202—Constituents thereof

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Pathology (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Molecular Biology (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Electrolytic Production Of Metals (AREA)
  • Investigating And Analyzing Materials By Characteristic Methods (AREA)

Description

Verfahren zur Identifizierung von Leichtmetallen und deren Legierungen Leichtmetallfliegwerkstoffe bestehen außer aus Aluminium im wesentlichen aus Leichtmetallegierungen folgender grunds;ätzlicher Zusammensetzungen: Al-Zn-Mg, Al-Cu-Mg (Duraluminart), Al-Mg-Si (Pantalart), Al-Mg mir: 3 bis 90/0 Mg und; Mg-Legierungen. Bei dem von Leichtmetallfliegwerkstoffen anfallenden Schrott sind in der Regel diese yerschiedenen Legierungen untereinander vermischt, so daß die Sortierung nach der Zusammensetzung der Schrotteile, wenn überhaupt, nur sehr schwierig und von besonders geschulten Kräften durchführbar ist. Die Erfindung zielt darauf ab, die Unterscheidung von Fliegwerkstoffen untereinander durch lein schnell durchführbares Verfahren in einfacher und eindeutiger Weise zu ermöglichen.Procedure for the identification of light metals and their alloys In addition to aluminum, light metal flying materials essentially consist of light metal alloys of the following basic caustic compositions: Al-Zn-Mg, Al-Cu-Mg (duralumin type), Al-Mg-Si (Pantalart), Al-Mg-mine: 3 to 90/0 Mg and; Mg alloys. In the case of Scrap generated from light metal aviation materials is usually of these different types Alloys mixed together, so that sorting according to the composition the scrap parts, if at all, only very difficult and by specially trained Forces is feasible. The invention aims to distinguish between Aviation materials with each other by a quick and easy process and unambiguously to enable.

Die nach den obigen Gruppen vorzunehmende Unterscheidung der Schrotteile erfolgt bei dem Verfahren nach der Erfindung ohne quantitative Analyse der Legiertmgsbestandteile und ohne die bei den bekannten analytischen Verfahren erforderliche Probenahme. The distinction to be made between the scrap parts according to the above groups takes place in the method according to the invention without quantitative analysis of the alloy components and without the sampling required in the known analytical methods.

Dadurch wird nicht nur ermöglicht, am Schrottplatz selbst das Verfahren auszuführen, sondern es wird auch das zeitraubende Analysieren zur quantitativen Bestimmung des Gehaltes an leinzelnen Bestandteilen, um aus diesen wieder die Legierungsgruppen erkennen zu können, ausgeschaltet. Es unterschleidet sich das erfindungsgemäße Verfahren von den bekannten chemischen, elektrochlemischlen und elektrometrischen bzw. potentiometrischen Methoden mit Probenahme und quantitativer Bestimmung der einzelnen Legierungsbestandteile grundsätzlich dadurch, daß zerstörungsfrei gearbeitet wird und die Schrotteile unmittelbar nach Legierungsgruppen unterscheidbar sind. Ein Verfahren dieser Art ist bisher nicht bekannt.This not only enables the procedure at the scrap yard itself but it also turns the time-consuming analysis into a quantitative one Determination of the content of individual components in order to recreate the alloy groups from these to be able to recognize turned off. The method according to the invention is different from the known chemical, electrochemical and electrometric or potentiometric Methods with sampling and quantitative determination of the individual alloy components basically by the fact that the work is carried out non-destructively and the scrap parts directly are distinguishable according to alloy groups. One method of this type is so far not known.

Das erfindungsgemäße Verfahren besteht im Wesen darin, daß das zu untersuchende Werkstück als Pol eines elektrolytischrenElementes eingeschaket wird, dessen anderer Pol vorzugsweise aus Kohle ender Kupfer mit Kochsalzlösung als Elektrolyt besteht, und daß die Seannung des Elementes festgestellt wird. Die Spannungen des Elementes bei den verschiedenen Legierungsarten sind in einem solchen Maße unterschiedlich, daß eine klare Unterscheidung der einzelnen Werkstoffe nach ihrer Zusammensetzung möglich ist. Mit Kohle als Gegenpol des Elementes und einer 5 obigen Kochsalzlösung als Elektrolyt wurden folgende Spannungen gemessen: Bei Al-Mg-Legierungen ungefähr o,66V, bei Al- Cu-Mg-Legierungen (Duraluminart); zwischen 0,41 und o,48 V, bei Al-Mg-Si-Legierungen (Pantalart) o,6o bis o,6I V, bei Al-Zn-Mg-Legierungen zwischen o,7I und o,84 V, bei Mg-Legierungen zwischen 1,42 und I,45 V und bei Reinalumiuium 0,59 V. The inventive method is essentially that the to the workpiece to be examined is encased as a pole of an electrolytic element, the other pole of which is preferably made of carbon and copper with saline solution as the electrolyte exists, and that the composition of the element is determined. the The stresses of the element in the various types of alloys are similar Dimensions differ so that a clear distinction between the individual materials is possible their composition is possible. With coal as the opposite pole of the element and one 5 of the above saline solution as electrolyte, the following voltages were measured: At Al-Mg alloys approximately 0.66V, for Al-Cu-Mg alloys (duralumin type); between 0.41 and 0.48 V, for Al-Mg-Si alloys (Pantalart) 0.6o to 0.6I V, for Al-Zn-Mg alloys between 0.71 and 0.84 V, for Mg alloys between 1.42 and 1.45 V and for pure aluminum 0.59 V.

Mit Kupfer als Gegenpol eines Elementes mit 5 O/oiger Kochsalzlösung wurden folgende Spannungen gemessen: Bei Al-Mg-Legierungen ungefähr o,70 V, bei Al-Cu-Mg-Legxerungen 0,42 V, bei Al-Mg-Si-Legierungen o,69 bis o,70 V, bei Al-Zn-Mg-Legierungen zwischen 0,64 und o,68 V, bei Mg-Legierungen 1,39 bis I,40 V und bei Reinaluminium 0,55 V.With copper as the opposite pole of an element with 5% saline solution The following voltages were measured: For Al-Mg alloys approximately 0.70 V at Al-Cu-Mg alloys 0.42 V, with Al-Mg-Si alloys 0.69 to 0.70 V, with Al-Zn-Mg alloys between 0.64 and 0.68 V, for Mg alloys 1.39 to 1.40 V and for pure aluminum 0.55 V.

Claims (2)

Aus den obigen Angaben der Spannungen ist zu ersehen, daß letztere leine eindeutige Unterscheidung der Legierungsarten, besonders wenn Kohle als Gegenpol verwendet wird, gestatten. Die Ausführung einer solchen Messung niunmt-nur wenige Sekunden in Anspruch. Schwankungen innerhalb einer Legierungsgruppe sind derart klein, daß sie nicht zu einer Verwechslung der Legierungsarten untereinander führen können. From the above information on the voltages it can be seen that the latter There is no clear distinction between the types of alloys, especially when carbon is the opposite pole is used. The execution of such a measurement is not possible - only a few Seconds to complete. Variations within an alloy group are such small that they do not lead to a mix-up of the types of alloys with one another can. Zweckmäßig wird das Verfahren miteinem bügelförmigen Gerät durchgeführt, von dem ein Schenkel den Kohle- oder Kupferpol bildet und der andere isolierte Schenkel als metallischer Leiter ausgebildet ist, der mit dem zu prüfenden Werkstoff durch Auflegen in leitende Verbindung gebracht werden kann. The procedure is expediently carried out with a bow-shaped device, one leg of which forms the carbon or copper pole and the other isolated leg is designed as a metallic conductor that passes through with the material to be tested Hang up can be brought into conductive connection. Als Elektrolyt dient eine mit beiden Polen in Berührung stehende, mit dem E]ektrolyten getränkte Filzplattke.An electrolyte that is in contact with both poles is used. felt plate soaked with the electrolyte. PATENTANSPRÜCHE: 1. Verfahren zur Identifizierung von Leichtmetallen und deren Legierungen, dadurch gekennzeichnet, daß das zu prüfende Werkstück als Pol eines ,elektrolytischen Elementes eingeschaltet wird, dessen anderer Pol vorzugsweise aus Kohle oder Kupfer mit Kochsalzlösung als Elektrolyt besteht, und daß die Spannung des Elementes festgestellt wird. PATENT CLAIMS: 1. Method for the identification of light metals and their alloys, characterized in that the workpiece to be tested as Pole of an electrolytic element is switched on, the other pole of which is preferred consists of carbon or copper with saline as the electrolyte, and that the voltage of the element is determined. 2. Gerät zur Durchführung des Ver fahrens nach Anspruch I, gekennzeichnet durch einen Bügel, dessen Schenkel gegeneinander elektrisch isoliert sind, von denen der eine den Kohle- oder Kupferpol bildet und der andere als metallischer Leiter ausgebildet ist, der mit dem Werkstück in leitende Verbindung gebracht werden kann, wobei als Elektrolyt eine mit beiden Polen in Berührung stehende, mit dem Elektrolyten getränkte Filzplatte dient. 2. Apparatus for performing the method according to claim I, characterized by a bracket, the legs of which are electrically isolated from each other, of which one forms the carbon or copper pole and the other as a metallic conductor is designed, which can be brought into conductive connection with the workpiece, whereby the electrolyte is one with both poles in contact with the electrolyte soaked felt plate is used. Zur Abgrenzung des Anmeldungsgegenstandes vom Stand der Technik ist im Erteilungsverfahren folgende Druckschrift in Betracht gezogen worden: Zeitschrift für angewandte Chemie, 51. Jahrgang, 1938, Nr. 2, S.35 bis 38. To distinguish the subject of the application from the state of the art is The following publication was considered in the granting procedure: Zeitschrift for applied chemistry, 51st year, 1938, No. 2, pages 35 to 38.
DEN45753D 1942-06-18 1942-06-18 Procedure for the identification of light metals and their alloys Expired DE741982C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEN45753D DE741982C (en) 1942-06-18 1942-06-18 Procedure for the identification of light metals and their alloys

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Application Number Priority Date Filing Date Title
DEN45753D DE741982C (en) 1942-06-18 1942-06-18 Procedure for the identification of light metals and their alloys

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Publication Number Publication Date
DE741982C true DE741982C (en) 1943-11-19

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2728656A (en) * 1952-02-29 1955-12-27 Ethyl Corp Method of preparing lead alloys

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2728656A (en) * 1952-02-29 1955-12-27 Ethyl Corp Method of preparing lead alloys

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