DE946499C - Synthetic bearing stone for precision mechanical devices and processes for its manufacture - Google Patents

Synthetic bearing stone for precision mechanical devices and processes for its manufacture

Info

Publication number
DE946499C
DE946499C DEG13892A DEG0013892A DE946499C DE 946499 C DE946499 C DE 946499C DE G13892 A DEG13892 A DE G13892A DE G0013892 A DEG0013892 A DE G0013892A DE 946499 C DE946499 C DE 946499C
Authority
DE
Germany
Prior art keywords
bearing
stone
corundum
hole
mechanical devices
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
DEG13892A
Other languages
German (de)
Inventor
Dr Enis Bas-Taymaz
Dr Phil Fritz Held
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.)
Gesellschaft zur Foerderung der Forschung an der Eidgenoessischen Technischen Hochschule
Original Assignee
Gesellschaft zur Foerderung der Forschung an der Eidgenoessischen Technischen Hochschule
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 Gesellschaft zur Foerderung der Forschung an der Eidgenoessischen Technischen Hochschule filed Critical Gesellschaft zur Foerderung der Forschung an der Eidgenoessischen Technischen Hochschule
Application granted granted Critical
Publication of DE946499C publication Critical patent/DE946499C/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B31/00—Bearings; Point suspensions or counter-point suspensions; Pivot bearings; Single parts therefor
    • G04B31/06—Manufacture or mounting processes
    • 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
    • C30B29/00—Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape
    • C30B29/10—Inorganic compounds or compositions
    • C30B29/16—Oxides
    • C30B29/22—Complex oxides
    • C30B29/26—Complex oxides with formula BMe2O4, wherein B is Mg, Ni, Co, Al, Zn, or Cd and Me is Fe, Ga, Sc, Cr, Co, or Al

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Inorganic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Sliding-Contact Bearings (AREA)

Description

Synthetischer Lagerstein für feinmechanische Geräte und Verfahren zu seiner Herstellung Die Erfindung betrifft einen synthetischen Lagerstein für feinmechanische Geräte.Synthetic bearing stone for precision mechanical devices and processes for its manufacture The invention relates to a synthetic bearing block for precision mechanical devices.

Es ist bekannt, daß weiße Lagersteine aus Reinkorund gegenüber rotgefärbten, als Rubis bezeichneten Steinen bezüglich ihrer Eigenschaften und damit auch bezüglich Eignung als Lagermaterial Vorteile aufweisen. Diese Vorteile wirken sich vor allem aus bei verhältnismäßig hohen Lagerdrücken, wie z. B. bei elektrischen Zählern, wo praktisch nur weiße Korundsteine verwendet werden. Bei den Uhren hingegen werden, vor allem aus dekorativen Gründen, vorzugsweise rotgefärbte Steine, sogenannte Rubis, verwendet. Als Lagermaterial hätte aber auch hier der weiße reine Korund grundsätzlich bessere Eigenschaften.It is known that white jewels made of pure corundum compared to red-colored, stones called rubis with regard to their properties and thus also with regard to Suitability as a storage material have advantages. These benefits mainly affect from at relatively high bearing pressures, such as. B. for electrical meters, where practically only white corundum stones are used. In the case of clocks, on the other hand, mainly for decorative reasons, preferably red colored stones, so-called rubis, used. Here, too, the pure white corundum would basically be used as storage material better properties.

Die Erfindung besteht nun in einem synthetischen Lagerstein für die genannten Zwecke, der sich dadurch auszeichnet, daß er- zwei Zonen aufweist, von denen die eine die innere Lagerzone aus weißem Reinkorund und die andere die äußere Zone aus rotgefärbtem Korund (Rubin) ist.The invention now consists in a synthetic bearing block for the mentioned purposes, which is characterized in that he has two zones, of one of which is the inner bearing zone made of pure white corundum and the other is the outer one Zone of red colored corundum (ruby) is.

Das Verfahren zur Herstellung des synthetischen Lagersteins nach Anspruch 2 besteht im wesentliehen darin, daß durch örtliche thermische Behandlung des Steinloches dafür gesorgt wird, daß das Chromoxyd durch Diffusion entfernt wird. Die Entfernung des Chromoxyds, d. h. die Herstellung der weißen Lagerzone in einem rotgefärbten Lagerstein (Rubin) kann auf verschiedene Art und Weise durchgeführt werden. So kann die Reinkorundzone durch Erhitzen eines in das Steinloch eingeführten Heizdrahtes, z. B. Wolfram oder Tantal, erfolgen, oder es kann die thermische Behandlung des Steinloches durch die kinetische Energie eines Elektronenstrahls durchgeführt werden. Schließlich, kann auch beim Bohren eines ungebohrten, rotgefärbten Lagersteins durch einen Elektronenstrahl dieser so gesteuert werden, daß zugleich die Herstellung des Lagerloches und .der weißen Lagerzone aus Reinkorund erfolgt. 'The method of manufacturing the synthetic bearing jewel according to claim 2 consists essentially of in that by local thermal Treatment of the stone hole ensures that the chromium oxide by diffusion Will get removed. The removal of the chromium oxide, i.e. H. the creation of the white storage zone in a red colored jewel (ruby) can be done in different ways will. The pure corundum zone can be heated up in the stone hole Heating wire, e.g. B. tungsten or tantalum, or it can be thermal treatment of the stone hole carried out by the kinetic energy of an electron beam will. Finally, it can also be used when drilling an undrilled, red-colored jewel by an electron beam these are controlled so that at the same time the production the bearing hole and the white bearing zone made of pure corundum. '

Claims (1)

PATENTANSPRÜCHE: z. Synthetischer Lagerstein für feinmechanische Geräte, dadurch gekennzeichnet, daß er zwei Zonen aufweist, von denen die eine *die innere Lagerzone aus weißem Reinkorund und die andere- die äußere Zone aus rotgefärbtem Korund (Rubin) ist. Verfahren zur Herstellung des Lagersteines nach Anspruch z, dadurch gekennzeichnet, daß durch örtliche thermische Behandlung des Steinloches das Chromoxyd durch Diffusion entfernt wird. 3. Verfahren nach Anspruch 2, gekennzeichnet durch Erhitzung eines in das Steinloch eingeführten Heizdrahtes. q.. Verfahren nach Anspruch 2, dadurch gekennzeichnet, dä.ß die thermische Behandlung durch die kinetische Energie eines Elektronenstrahls erfolgt. 5. Verfahren nach Anspruch 2, dadurch gekennzeichnet, daß beim Bohren des Lagerloches durch Elektronenstrahlen diese so gesteuert werden, daß zugleich die Herstellung des Loches und der weißen Lagerzone aus Reinkorund erfolgt. PATENT CLAIMS: e.g. Synthetic bearing stone for precision mechanical devices, characterized in that it has two zones, one of which is the inner bearing zone made of pure white corundum and the other, the outer zone, is made of red-colored corundum (ruby). Process for the production of the bearing block according to claim z, characterized in that the chromium oxide is removed by diffusion by local thermal treatment of the stone hole. 3. The method according to claim 2, characterized by heating a heating wire introduced into the stone hole. q .. The method according to claim 2, characterized in that the thermal treatment is carried out by the kinetic energy of an electron beam. 5. The method according to claim 2, characterized in that when drilling the bearing hole by electron beams, these are controlled so that the hole and the white bearing zone are made from pure corundum at the same time.
DEG13892A 1954-01-16 1954-03-07 Synthetic bearing stone for precision mechanical devices and processes for its manufacture Expired DE946499C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH318947T 1954-01-16
CH946499X 1954-01-16

Publications (1)

Publication Number Publication Date
DE946499C true DE946499C (en) 1956-08-02

Family

ID=61010854

Family Applications (1)

Application Number Title Priority Date Filing Date
DEG13892A Expired DE946499C (en) 1954-01-16 1954-03-07 Synthetic bearing stone for precision mechanical devices and processes for its manufacture

Country Status (2)

Country Link
CH (1) CH318947A (en)
DE (1) DE946499C (en)

Also Published As

Publication number Publication date
CH318947A (en) 1957-01-31

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