DE679402C - Process for the production of double carbides - Google Patents

Process for the production of double carbides

Info

Publication number
DE679402C
DE679402C DES105526D DES0105526D DE679402C DE 679402 C DE679402 C DE 679402C DE S105526 D DES105526 D DE S105526D DE S0105526 D DES0105526 D DE S0105526D DE 679402 C DE679402 C DE 679402C
Authority
DE
Germany
Prior art keywords
carbides
production
double
tungsten
titanium
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
DES105526D
Other languages
German (de)
Inventor
Dr Phil Emil Duhmc
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.)
Siemens and Halske AG
Siemens AG
Original Assignee
Siemens and Halske AG
Siemens AG
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 Siemens and Halske AG, Siemens AG filed Critical Siemens and Halske AG
Priority to DES105526D priority Critical patent/DE679402C/en
Application granted granted Critical
Publication of DE679402C publication Critical patent/DE679402C/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/04—Making non-ferrous alloys by powder metallurgy
    • C22C1/05—Mixtures of metal powder with non-metallic powder
    • C22C1/051—Making hard metals based on borides, carbides, nitrides, oxides or silicides; Preparation of the powder mixture used as the starting material therefor
    • C22C1/053—Making hard metals based on borides, carbides, nitrides, oxides or silicides; Preparation of the powder mixture used as the starting material therefor with in situ formation of hard compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Ceramic Products (AREA)

Description

Verfahren zur Herstellung von Doppelcarbiden Die Erfindung bezieht sich auf ein Verfahren zur Herstellung von Hartlegierungen, die zum wesentlichen Teil aus einem harten Carbid bestehen, durch Sintern gepulverter Ausgangsstoffe.Process for Making Double Carbides The invention relates to on a process for the production of hard alloys, which is essential Part made of a hard carbide by sintering powdered raw materials.

Bisher verwendete man bei derartigen Hart- einem Metall der Eisengruppe bestehende Trägermetall hat die Aufgabe, die einzelnen harten Carbidteilchen miteinander zu verbinden und dem Material die notwendige Zähigkeit zu geben.So far, such hard A carrier metal consisting of a metal of the iron group has the task of connecting the individual hard carbide particles with one another and giving the material the necessary toughness.

Es ist auch schon bekannt, Hartlegierungen lediglich aus inem oder mehreren Carbiden und einen? ATetall mit ähnlich hohem Sclimelzpunkt, insbesondere Wolfram, zusammenzusetzen. Hierbei ist das freie Metall in überwiegender Menge vorhanden. Bei der Herstellung solcher Hartlegierungen wird von den Elementen in reiner Form ausgegangen. ' Nach einem anderen Verfahren werden die elementaren Komponenten zunächst zusammengeschmolzen, die Schmelzlegierung wird dann zerkleinert und zu einer Hartlegierung gesintert. Die Erfindung bezieht sich nun auf ein Verfahren zur Herstellung von Hartlegierungen ohne niedrigschmelzendes Trägermetall. Das Ziel der Erfindung besteht darin, Hartlegierungen zu erhalten, die zum überwiegenden Teil aus Doppelcarbiden von Bor, Titan, Zirkon, Silicium, Thorium, Cer mit einem oder mehreren der Metalle Tantal, Wolfram, Molybdän bestehen.It is also already known to use hard alloys only from one or several carbides and one? ATetal with a similarly high melting point, in particular Tungsten, put together. The free metal is predominantly present here. In the manufacture of such hard alloys, the elements are used in their pure form went out. 'According to a different process, the elementary components are first melted together, the fusible alloy is then crushed and turned into a hard alloy sintered. The invention now relates to a method for producing Hard alloys without a low-melting carrier metal. The aim of the invention is in obtaining hard alloys, the majority of which are double carbides of boron, titanium, zirconium, silicon, thorium, cerium with one or more of the metals Tantalum, tungsten, molybdenum are made.

Erfindungsgemäß werden hierzu ein oder mehrere pulverförmige Carbide des Bor, Titan, Zirkon, Silicium, Thorium, Cer mit pulverförmigem Tantal, Wolfram und/oder Molybdän unter Ausschluß leichtschmelzender Metalle gemischt und gesintert.According to the invention, one or more powdery carbides are used for this purpose des boron, titanium, zirconium, silicon, thorium, cerium with powdered tantalum, tungsten and / or molybdenum mixed and sintered to the exclusion of easily melting metals.

In einer derartig hergestellten Hartlegierung sind die Komponenten nicht nur mechanisch miteinander verbunden, ein wesentlicher Teil der Legierung besteht vielmehr aus einem Doppelcarbid. Werden z. B. Titanca.rbid und Wolframmetall zur Herstelltuig der Legierung benutzt, so entsteht ein D@oppelcarbid entweder der Zusammensetzung TI C +W# C oder Ti W C. In a hard alloy produced in this way, the components are not only mechanically connected to one another, but rather a substantial part of the alloy consists of a double carbide. Are z. If, for example, titanium carbide and tungsten metal are used to produce the alloy, a double carbide either of the composition TI C + W # C or Ti W C.

In vielen Fällen kann erreicht werden, daß die Legierung ganz oder zumindest zum größten Teil aus einem oder mehreren Doppelcarbiden besteht. Zu diesem Zweck werden .die Anteile der einzelnen Komponenten ihren molaren Mengen entsprechend gewählt, so daß die Umbildung der gesamten Masse in ein Doppelearbid begünstigt wird.In many cases it can be achieved that the alloy is entirely or consists at least for the most part of one or more double carbides. To this purpose the proportions of the individual components are their molar Quantities chosen accordingly, so that the transformation of the entire mass into a double arbide is favored.

Claims (2)

PATENTANSPRÜCHE: t: Verfahren zur Herstellung von Hartlegierungen , die zum überwiegenden Teil aus Doppelcarbiden von Bor. Titan, Zirkon, Silicium, Thorium, Cer mit einem oder mehreren der Metalle Tantal. Wolfram, Molybdän bestehen, dadurch gekennzeichnet, daß ein oder mehrere pulverförmige Carbide des Bor, Titan, Zirkon, Silicium, Thorium oder Cer mit pulverförmigem Täntal, Wolfram und/oder Molybdän unter Ausschluß leichtschmelzender Hilfsmetalle gemischt und gesintert werden. PATENT CLAIMS: t: Process for the production of hard alloys , which for the most part consist of double carbides of boron. Titanium, zirconium, silicon, Thorium, cerium with one or more of the metals tantalum. Made of tungsten, molybdenum, characterized in that one or more powdery carbides of boron, titanium, Zirconium, silicon, thorium or cerium with powdered täntal, tungsten and / or molybdenum mixed and sintered with the exclusion of easily melting auxiliary metals. 2. Verfahren nach Anspruch r, dadurch gekennzeichnet, daß molare Mengen an Carbid und Metall gemischt und gesintert werden:2. Process according to claim r, characterized in that molar amounts of carbide and Metal to be mixed and sintered:
DES105526D 1932-07-20 1932-07-20 Process for the production of double carbides Expired DE679402C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES105526D DE679402C (en) 1932-07-20 1932-07-20 Process for the production of double carbides

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES105526D DE679402C (en) 1932-07-20 1932-07-20 Process for the production of double carbides

Publications (1)

Publication Number Publication Date
DE679402C true DE679402C (en) 1939-08-04

Family

ID=7526648

Family Applications (1)

Application Number Title Priority Date Filing Date
DES105526D Expired DE679402C (en) 1932-07-20 1932-07-20 Process for the production of double carbides

Country Status (1)

Country Link
DE (1) DE679402C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1027883B (en) * 1952-06-20 1958-04-10 Norton Ges M B H Deutsche Sintered hard alloys and processes for their manufacture
DE1103598B (en) * 1952-12-29 1961-03-30 Renault Process for the production of wear-resistant, auxiliary metal-free, sintered hard metal alloys

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1027883B (en) * 1952-06-20 1958-04-10 Norton Ges M B H Deutsche Sintered hard alloys and processes for their manufacture
DE1103598B (en) * 1952-12-29 1961-03-30 Renault Process for the production of wear-resistant, auxiliary metal-free, sintered hard metal alloys

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