DE3229698A1 - Holder for lowering a plurality of melting crucibles in the Bridgeman zone-melting process - Google Patents

Holder for lowering a plurality of melting crucibles in the Bridgeman zone-melting process

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Publication number
DE3229698A1
DE3229698A1 DE19823229698 DE3229698A DE3229698A1 DE 3229698 A1 DE3229698 A1 DE 3229698A1 DE 19823229698 DE19823229698 DE 19823229698 DE 3229698 A DE3229698 A DE 3229698A DE 3229698 A1 DE3229698 A1 DE 3229698A1
Authority
DE
Germany
Prior art keywords
melting
crucibles
zone
holder
bridgeman
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.)
Withdrawn
Application number
DE19823229698
Other languages
German (de)
Inventor
Jürgen 6074 Rödermark Wisotzki
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 DE19823229698 priority Critical patent/DE3229698A1/en
Publication of DE3229698A1 publication Critical patent/DE3229698A1/en
Withdrawn legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C30—CRYSTAL GROWTH
    • C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
    • C30B13/00—Single-crystal growth by zone-melting; Refining by zone-melting
    • C30B13/32—Mechanisms for moving either the charge or the heater

Abstract

The holder for melting crucibles for the protection and purification of metal baths in the vertical Bridgeman zone-melting process carries not only one but a plurality of melting crucibles. To obtain uniform heating in the various melting crucibles when these are lowered inside an HF-coil, the melting crucibles are lowered while rotating side by side.

Description

B e , c h r e i b u, n g B e, c h r e i b u, n g

=========================== Halterung für das Absenken mehrerer Schmelztiegel im Bridgman - Zonenschmelzverfahren. =========================== Bracket for lowering several crucibles in the Bridgman zone melting process.

gweck ~ ~ ~ ~ Wirtschaftliches Zonenschmelzen durch gleichzeitiges Absenken mehrerer Schmelztiegel in einem Arbeitsgang.gweck ~ ~ ~ ~ Economic zone melting through simultaneous Lowering several crucibles in one operation.

Bisheriger Stand der Technik Bisheriger Stand der Technik Für die Fertigung und Reinigung von Metallstäben eines bestimmten Durchmessers, mittels Zonenschmelzen in einem Schmelztiegel, wird herkömmlicherweise bei größeren Menyen, die Länge des Schmelztiegels vergrößert.Previous state of the art Previous state of the art For the Manufacture and cleaning of metal rods of a certain diameter, by means of Zone melting in a crucible, traditionally used for larger menyen, increased the length of the crucible.

Eine Begrenzung wird durch die Transportweglänge der Zonenschmelzapparatur festgelegt.One limitation is the length of the transport path of the zone melting apparatus set.

Kritik am Stand der Technik Die Anzahl der Arbeitsgänge und die Wirtschaftlichkeit einer vertikalen Zonenschmelzapparatur ist abhängig von der vertikalen Weglänge.Criticism of the state of the art The number of work steps and the economy a vertical zone melting apparatus depends on the vertical path length.

Bei der Herstellung von Kobaltstäben, 20 mm Durchmesser, Länge 150 mm und deren gleichzeitige Reinigung, sieht das Arbeitspensum wie folgt aus: Transportweglänge der Zonenapparatur ist 300 mm.In the manufacture of cobalt rods, 20 mm in diameter, 150 in length mm and their simultaneous cleaning, the workload looks like this: Transport path length the zone apparatus is 300 mm.

Gefordert sind insgesamt 3 m Kobaltstäbe, Durchmesser 20mm.A total of 3 m cobalt rods with a diameter of 20 mm are required.

Dieses setzt 10'Arbeitsgänge , mit allen Kosten, voraus.This assumes 10 work cycles, with all costs.

Lösung Ausgehend von der Tatsache, dan,mittels HF- Beheizung, innerhalb einer llF- Spule, alle Metalle,mittels Rotation, gleichmäßig erwärmen und bis zum Schmelzpunkt gebracht werden können, lag der Entschluß vor, einen Versuch zu unternehmen, mehrere Schmelztiegel,a 300 mm,zu erwärmen und das Material aufzuschmelzem.Solution Based on the fact then, by means of HF heating, within an llF coil, heat all metals evenly by means of rotation and up to Can be brought to the melting point, the decision was made to make an attempt to heat several crucibles, a 300 mm, and to melt the material.

Es wurde eine Anordnung gefertigt, die es erlaubt, vier dieser Schmelztiegel , nebeneinanderstehend, gleichzeitig rotierend abzusenken Das Ergebnis zeigte, daß auf diesem AJegein einem Arbeitsgang, die vierfache Menge der geforderten Kobaitstäbe gefertigt werden konnte.An arrangement was made to allow four of these crucibles , standing side by side, rotating at the same time. The result showed that On this A, in one operation, four times the amount of the required Kobait rods could be manufactured.

Dieses läßt sich auf andere Durchmesser und ebenfalls auf die Anzahl der Schmelztiegel beliebig abändern und stellt damit eine gravierende Erhöhung der Wirtschaftlichkeit in der Technik des vertikalen Zonenschmelzens dar.This can be applied to other diameters and also to the number Modify the crucible at will and thus represents a serious increase in the Economic efficiency in the technique of vertical zone melting.

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Claims (1)

Patentanspruch 1. Halterung für im vertikalen BRIDGEMAN-zonenschmelzverfahren bei HF-Beheizung innerhalb einer HF-Spule abzusenkende Schmelztiegel zur Fertigung und Reinigung von Metallstäben, d a d u r c h g e k e n n z e i c h n e t , daß mehrere Schmelztiegel nebeneinanderstehend rotierend absenkbar sind. Claim 1. Bracket for in the vertical BRIDGEMAN zone melting process In the case of HF heating, melting crucibles to be lowered within an HF coil for production and cleaning of metal rods, noting that several crucibles standing next to one another can be lowered while rotating.
DE19823229698 1982-08-10 1982-08-10 Holder for lowering a plurality of melting crucibles in the Bridgeman zone-melting process Withdrawn DE3229698A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19823229698 DE3229698A1 (en) 1982-08-10 1982-08-10 Holder for lowering a plurality of melting crucibles in the Bridgeman zone-melting process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19823229698 DE3229698A1 (en) 1982-08-10 1982-08-10 Holder for lowering a plurality of melting crucibles in the Bridgeman zone-melting process

Publications (1)

Publication Number Publication Date
DE3229698A1 true DE3229698A1 (en) 1984-02-16

Family

ID=6170494

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19823229698 Withdrawn DE3229698A1 (en) 1982-08-10 1982-08-10 Holder for lowering a plurality of melting crucibles in the Bridgeman zone-melting process

Country Status (1)

Country Link
DE (1) DE3229698A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008086704A1 (en) * 2006-12-29 2008-07-24 Jiaxing University Crystal producing system used in bridgman-stockbarger method by rotating multiple crucibles
WO2008086705A1 (en) * 2006-12-29 2008-07-24 Jiaxing University Crystal producing system used in temperature gradient method by rotating multiple crucibles
DE102008034029A1 (en) 2008-07-17 2010-01-21 Forschungsverbund Berlin E.V. Device for growing crystals from electroconductive melt by direct solidification, includes crucible that contains melt, arranged within growing chamber in multicrucible arrangement and in parallel axis around chamber-imaginary central axis

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008086704A1 (en) * 2006-12-29 2008-07-24 Jiaxing University Crystal producing system used in bridgman-stockbarger method by rotating multiple crucibles
WO2008086705A1 (en) * 2006-12-29 2008-07-24 Jiaxing University Crystal producing system used in temperature gradient method by rotating multiple crucibles
CN101008100B (en) * 2006-12-29 2010-05-19 嘉兴学院 Temperature gradient method rotary multiple crucible crystal growth system
CN101070608B (en) * 2006-12-29 2010-06-23 嘉兴学院 Rotary multi-crucible lowering method crystal growth system
DE102008034029A1 (en) 2008-07-17 2010-01-21 Forschungsverbund Berlin E.V. Device for growing crystals from electroconductive melt by direct solidification, includes crucible that contains melt, arranged within growing chamber in multicrucible arrangement and in parallel axis around chamber-imaginary central axis

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Legal Events

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