DE345541C - - Google Patents

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Publication number
DE345541C
DE345541C DENDAT345541D DE345541DA DE345541C DE 345541 C DE345541 C DE 345541C DE NDAT345541 D DENDAT345541 D DE NDAT345541D DE 345541D A DE345541D A DE 345541DA DE 345541 C DE345541 C DE 345541C
Authority
DE
Germany
Prior art keywords
metal
abrasive
mixture
grinding tools
parts
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.)
Active
Application number
DENDAT345541D
Other languages
German (de)
Publication of DE345541C publication Critical patent/DE345541C/de
Active legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24DTOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D3/00Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
    • B24D3/02Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent
    • B24D3/04Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic
    • B24D3/06Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic metallic or mixture of metals with ceramic materials, e.g. hard metals, "cermets", cements
    • B24D3/08Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic metallic or mixture of metals with ceramic materials, e.g. hard metals, "cermets", cements for close-grained structure, e.g. using metal with low melting point

Description

Verfahren zur Herstellung von Schleifwerkzeugen aus einer Mischung von Metall als Bindemittel und Schleifmitteln. Gegenstand der Erfindung sind sowohl das Verfahren zur Herstellung als auch Schleifwerkzeuge selbst aus einer Mischung von Metall als Bindemittel und Schleifmitteln.Process for the manufacture of grinding tools from a mixture of metal as binders and abrasives. The invention relates to both the process of making as well as grinding tools themselves from a mixture of metal as binders and abrasives.

Die bisherigen Schleifscheiben mit keramischer, chemischer oder vegetabilischer Bindung zeigen verschiedene Nachteile, welche sich besonders bei hohen Umfangsgeschwindigkeiten bemerkbar machen. Die Hauptnachteile sind sogenanntes Explodieren, leichte Zerbrechlichkeit, Zerstörung bei Erwärmung, Nichtverwendbarkeit der Überreste.The previous grinding wheels with ceramic, chemical or vegetable Binding show various disadvantages, which are particularly evident at high peripheral speeds to make noticable. The main disadvantages are so-called exploding, easy fragility, Destruction when heated, the remains cannot be used.

Zweck des neuen Verfahrens und der beschriebenenAusführungsformist, Schleifscheiben wesentlich weniger empfindlich zu machen gegen Zerspringen bei hohen Geschwindigkeiten, Stoß oder Schlag, Erwärmung und zerstörte oder unbrauchbar gewordene Scheiben wieder verwenden zu können, ohne daß Bindestoff und Schleifmittel verloren gehen.The purpose of the new method and the described embodiment is To make grinding wheels much less sensitive to cracking at high Velocities, shock or impact, warming and destroyed or unusable To be able to use discs again without losing binding material and abrasives walk.

Die Beschreibung schildert das Verfahren und eine Ausführungsform von Schleifwerkzeugen, bei der Metall oder Legierungen mit dem Schleifmittel zu Schleifscheiben beliebiger Gestalt verarbeitet werden.The description describes the method and an embodiment of grinding tools, when metal or alloys with the abrasive too Grinding wheels of any shape can be processed.

Die Herstellung erfolgt derart, daß sich unter Wärmezufuhr die Bindung der einzelnen Teile zerkleinerten oder feinkörnigen Metalls untereinander und mit dem Schleifmittel vollzieht. Gleichzeitig wird die beim Pressen erzeugte Wärme mitbenutzt. Die Erwärmung wird aber nur bis zum Sintern der Metallteile getrieben, damit das Metall, ohne vollständig zu schmelzen, in sich und mit dem Schleifmittel zusammenbackt.The production takes place in such a way that the bond is formed with the supply of heat of the individual parts of crushed or fine-grained metal with one another and with the abrasive. At the same time, the heat generated during pressing is also used. The heating is only driven up to the sintering of the metal parts, so that Metal cakes in itself and with the abrasive without completely melting.

Außer Blei, das für allgemeine Verwendung ::u weich sein dürfte, können Legierungen, wie Zinn und Antimon, Aluminium, Kupfer und andere Metalle verwendet werden.Except for lead, which should be soft for general use :: u can Alloys such as tin and antimony, aluminum, copper and other metals are used will.

Claims (2)

PATENTANSPRÜCHE: i. Verfahren zur Herstellung von Schleifwerkzeugen aus einer Mischung von Metall als Bindemittel und Schleifmittel, dadurch gekennzeichnet, daß die Bindung der einzelnen Teile feinkörnigen Metalles untereinander und mit den Schleifmittelkörnern durch Wärmezufuhr unter Mitbenutzung der beim Pressen unter hohem Druck erzeugten Wärme in solchem Grade erfolgt, daß die Metallteile, ohne vollständig zu schmelzen,. miteinander und mit dem Schleifmittel zusammenbacken. PATENT CLAIMS: i. Process for the production of grinding tools from a mixture of metal as binder and abrasive, characterized in that, that the bond between the individual parts of fine-grained metal and with one another the abrasive grains by supplying heat while using the under pressing high pressure generated heat occurs to such an extent that the metal parts, without to melt completely. Bake together and with the abrasive. 2. Verfahren nach Anspruch i, dadurch g; kennzeichnet, daß als Metall Aluminium in Staubform ohne Zusatzbindemittel verwendet wird.2. The method according to claim i, characterized in that g; indicates that the metal is aluminum is used in dust form without additional binders.
DENDAT345541D Active DE345541C (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE964756C (en) * 1951-11-19 1957-05-29 Bendix Aviat Corp Friction body
DE977030C (en) * 1943-07-10 1964-11-19 Duria Werk Karl Kempf Ges Mit Process for the production of molded bodies from boron carbide and addition of silicon and / or aluminum
DE1194676B (en) * 1956-10-01 1965-06-10 Bendix Corp Drum polishing process and grinding tool to carry out the process
DE1263576B (en) * 1961-10-05 1968-03-14 Du Pont Process for the production of cermets

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE977030C (en) * 1943-07-10 1964-11-19 Duria Werk Karl Kempf Ges Mit Process for the production of molded bodies from boron carbide and addition of silicon and / or aluminum
DE964756C (en) * 1951-11-19 1957-05-29 Bendix Aviat Corp Friction body
DE1194676B (en) * 1956-10-01 1965-06-10 Bendix Corp Drum polishing process and grinding tool to carry out the process
DE1263576B (en) * 1961-10-05 1968-03-14 Du Pont Process for the production of cermets

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