DE582323C - Hard alloy for work equipment and tools - Google Patents
Hard alloy for work equipment and toolsInfo
- Publication number
- DE582323C DE582323C DE1930582323D DE582323DD DE582323C DE 582323 C DE582323 C DE 582323C DE 1930582323 D DE1930582323 D DE 1930582323D DE 582323D D DE582323D D DE 582323DD DE 582323 C DE582323 C DE 582323C
- Authority
- DE
- Germany
- Prior art keywords
- tools
- hard alloy
- alloy
- work equipment
- 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
Links
Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
- C04B35/58—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides
- C04B35/58007—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on refractory metal nitrides
- C04B35/58014—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on refractory metal nitrides based on titanium nitrides, e.g. TiAlON
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
- C04B35/56—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides
- C04B35/5607—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides based on refractory metal carbides
- C04B35/5611—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides based on refractory metal carbides based on titanium carbides
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
- C22C29/02—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
Description
Harte Legierung für Arbeitsgeräte und Werkzeuge Die Carbide hochschmelzender Metalle sind bekanntlich außerordentlich hart; einige von ihnen, wie z. B. das Wolframcarbid, kommen der Härte des Diamanten sehr nahe. Derartige Carbide bilden daher auch den Hauptbestandteil der unter der Bezeichnung Hartmetall oder Hartmetallegierung in immer steigenderem Maße zur Herstellung von Werkzeugen und Arbeitsgeräten benutzten Werkstoffe.Hard alloy for work equipment and tools The carbides have a higher melting point Metals are known to be extremely hard; some of them, such as B. the tungsten carbide, come very close to the hardness of the diamond. Such carbides therefore also form the Main component of the under the name hard metal or hard metal alloy in used increasingly for the manufacture of tools and implements Materials.
Die Erfindung besteht nun in der Feststellung, daß auch eine Legierung aus einem gesinterten oder geschmolzenen Gemisch von Titancarbid und Titannitrid zu einem ungewöhnlich harten und gleichzeitig auch sehr festen Erzeugnis führt, das ebenfalls zur Herstellung von Arbeitsgeräten und Werkzeugen aller Art, insbesondere aber auch Schneidwerkzeugen, sehr geeignet ist. Ein besonderer Vorteil der neuen Legierung besteht darin., daß Titanverbindungen, welche zur Herstellung von Titancarbid und Titannitrid dienen können, in reichlichen Mengen beim Hochofenbetrieb als Schlackenbestandteil abfallen, so daß die Grundstoffe der neuen Legierung sehr bequem und billig beschafft werden können. Bekannt sind die sog. Hochofenwürfel, die nach W ö h Le r (vgl. hierzu die Nachrichten von der Gesellschaft der Wissenschaften zu Göttingen aus dem Jahre 1927, S. 39o) die Zusammensetzung haben: Ti 77,26%, C 3;6q.%, N 18,3o%, Graphit o,92%. Als besonders vorteilhaft hat sich auch eine solche Legierung erwiesen, die zu j e etwa 5 o % aus Titancarbid -und Titannitrid besteht. Eine solche Legierung hat übrigens, wie festgestellt wurde, nicht nur einen den Schmelzpunkt des, Titannitrides (etwa 295o° C) und Titancarbides (etwa 3140'C) übersteigenden Schmelzpunkt von etwa 323o° C, sondern sogar innerhalb der möglichen Legierungsreihe aus Titancarbid und Titannitrid den höchsten Schmelzpunkt. Dieser Umstand dürfte wahrscheinlich die besonders hohe Härte dieser zu je 5o%, aus Titancarbid und Titannitrid bestehenden Legierung begründen.-Die neue Legierung kann sowohl durch Schmelzen als auch durch Pressen und nachfolgendes Sintern oder aber auch gleichzeitiges Pressen und Sintern der pulverförmigen Ausgangsstoffe hergestellt werden. Eine Verbesserung der Zähigkeit der neuen Legierung läßt sich erreichen, wenn dieser ein oder mehrere leichter schmelzende Hilfsmetalle, wie beispielsweise Kobalt, Eisen oder Nickel, in Mengen bis zu 25% hinzugefügt werden.The invention now consists in the finding that an alloy from a sintered or molten mixture of titanium carbide and titanium nitride leads to an unusually hard and at the same time very strong product, also for the production of work equipment and tools of all kinds, in particular but also cutting tools, is very suitable. A particular advantage of the new Alloy consists in that titanium compounds, which are used for the production of titanium carbide and titanium nitride can serve, in abundant quantities, as a constituent of the slag in blast furnace operation fall off, so that the raw materials of the new alloy can be obtained very conveniently and cheaply can be. The so-called blast furnace cubes, which according to W ö h Le r (cf. the news from the Society of Sciences in Göttingen from 1927, p. 39o) have the composition: Ti 77.26%, C 3; 6q.%, N 18.3o%, graphite o, 92%. Such an alloy has also proven to be particularly advantageous which each about 5 o% consists of titanium carbide and titanium nitride. Such an alloy Incidentally, as has been established, not only has the melting point of titanium nitride (about 295o ° C) and titanium carbides (about 3140'C) exceeding melting point of about 323o ° C, but even within the possible alloy series made of titanium carbide and Titanium nitride has the highest melting point. This circumstance is likely to be the Particularly high hardness of these consisting of 5o% each, consisting of titanium carbide and titanium nitride Establish alloy.-The new alloy can be made by melting as well as by Pressing and subsequent sintering or simultaneous pressing and sintering the powdery starting materials are produced. An improvement in toughness the new alloy can be achieved if this one or more more easily melting Auxiliary metals, such as cobalt, iron or nickel, in quantities of up to 25% to be added.
Ein zweckmäßiges Ausführungsbeispiel ist das folgende.A convenient embodiment, the f he following.
Es wird von einem Pulvergemisch. von 50% Titannitrid und 5o% Titancarbid ausgegangen. Reines Titannitrid kann durch kurzes Erhitzen des käuflichen Produktes im Kohlerohrofen bei 2ooo° C unter Stickstoffspülung, reines Titancarbid ebenfalls durch kurzes Glühen eines Titansäurekohlegemisches im Wasserstoffstrom bei 2ooo° C gewonnen werden. Aus der Mischung des fein gepulverten Glühproduktes werden Formstücke gepreßt, die bei 2¢oo° C auf Kohleunterlage (unter Stickstoffspülung) hochgesintert werden. Hierdurch erlangen sie .eine-außerordentliche Härte.It is made from a powder mix. of 50% titanium nitride and 5o% titanium carbide went out. Pure titanium nitride can be obtained by briefly heating the commercially available Product in a coal tube furnace at 2ooo ° C with nitrogen flushing, pure titanium carbide also by briefly glowing a mixture of titanic acid and carbon in a stream of hydrogen can be obtained at 2ooo ° C. From the mixture of the finely powdered glow product molded pieces are pressed, which are placed on a carbon base at 2 ¢ oo ° C (with nitrogen flushing) be sintered up. This gives them an extraordinary hardness.
Durch den Zusatz eines Hilfsmetalls, beispielsweise 7 bis i o % Kobalt, kann nicht nur die Zähigkeit der fertigen Legierung verbessert, sondern auch in bekannter Weise die Sintertemperatur erniedrigt werden. Man kann auch in bekannter Weise erst eine Vorsinterung bei niedrigeren Temperaturen vornehmen, sodann die Formgebung der in diesein Zustande noch" gut bearbeitbaren Preßlinge anschließen und dem Produkt danrX durch nachfolgendes Hochsintern die hohe Härte und Festigkeit verleihen.By adding an auxiliary metal, for example 7 to 10% cobalt, can not only improve the toughness of the finished alloy, but also in known way the sintering temperature can be lowered. One can also be known in Way, make a pre-sintering at lower temperatures, then the Shaping of the compacts, which are still "easy to process" in this state, are connected and the product danrX the high hardness and strength due to subsequent high sintering to lend.
Claims (2)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE582323T | 1930-06-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE582323C true DE582323C (en) | 1933-08-12 |
Family
ID=6571263
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1930582323D Expired DE582323C (en) | 1930-06-17 | 1930-06-17 | Hard alloy for work equipment and tools |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE582323C (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE976817C (en) * | 1944-12-05 | 1964-05-06 | Carl Dr Schusterius | Use of a sintered alloy for machine parts with high working temperatures in internal combustion engines |
JPS5010711A (en) * | 1973-06-04 | 1975-02-04 |
-
1930
- 1930-06-17 DE DE1930582323D patent/DE582323C/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE976817C (en) * | 1944-12-05 | 1964-05-06 | Carl Dr Schusterius | Use of a sintered alloy for machine parts with high working temperatures in internal combustion engines |
JPS5010711A (en) * | 1973-06-04 | 1975-02-04 |
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