CH156814A - Sintered hard metal alloy for implements and tools. - Google Patents
Sintered hard metal alloy for implements and tools.Info
- Publication number
- CH156814A CH156814A CH156814DA CH156814A CH 156814 A CH156814 A CH 156814A CH 156814D A CH156814D A CH 156814DA CH 156814 A CH156814 A CH 156814A
- Authority
- CH
- Switzerland
- Prior art keywords
- carbide
- tools
- vanadium
- hard metal
- implements
- Prior art date
Links
- 229910001092 metal group alloy Inorganic materials 0.000 title claims description 5
- INZDTEICWPZYJM-UHFFFAOYSA-N 1-(chloromethyl)-4-[4-(chloromethyl)phenyl]benzene Chemical compound C1=CC(CCl)=CC=C1C1=CC=C(CCl)C=C1 INZDTEICWPZYJM-UHFFFAOYSA-N 0.000 claims description 11
- 229910045601 alloy Inorganic materials 0.000 claims description 11
- 239000000956 alloy Substances 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 9
- 238000002844 melting Methods 0.000 claims description 8
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- UNASZPQZIFZUSI-UHFFFAOYSA-N methylidyneniobium Chemical compound [Nb]#C UNASZPQZIFZUSI-UHFFFAOYSA-N 0.000 claims description 6
- NFFIWVVINABMKP-UHFFFAOYSA-N methylidynetantalum Chemical compound [Ta]#C NFFIWVVINABMKP-UHFFFAOYSA-N 0.000 claims description 5
- 229910003468 tantalcarbide Inorganic materials 0.000 claims description 5
- 230000008018 melting Effects 0.000 claims description 4
- 150000001247 metal acetylides Chemical class 0.000 claims description 2
- 150000002739 metals Chemical class 0.000 claims description 2
- 230000000737 periodic effect Effects 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000010941 cobalt Substances 0.000 description 2
- 229910017052 cobalt Inorganic materials 0.000 description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 229910052758 niobium Inorganic materials 0.000 description 2
- 239000010955 niobium Substances 0.000 description 2
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 2
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 2
- QIJNJJZPYXGIQM-UHFFFAOYSA-N 1lambda4,2lambda4-dimolybdacyclopropa-1,2,3-triene Chemical compound [Mo]=C=[Mo] QIJNJJZPYXGIQM-UHFFFAOYSA-N 0.000 description 1
- 229910039444 MoC Inorganic materials 0.000 description 1
- -1 Tantalum carbides Chemical class 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000001648 tannin Substances 0.000 description 1
- 235000018553 tannin Nutrition 0.000 description 1
- 229920001864 tannin Polymers 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- C22C29/06—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 based on carbides, but not containing other metal compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Powder Metallurgy (AREA)
- Ceramic Products (AREA)
- Carbon And Carbon Compounds (AREA)
Description
Gesinterte HartmetaRegierung für Arbeitsgeräte und Werkzeuge. Zur Herstellung von Arbeitsgeräten und Werkzeugen werden vielfach gesinterte Hart- metallegierungen benutzt, die aus einem schwer schmelzbaren Karbid und einem zu sätzlichen Hilfsmetall von wesentlich niedri gerem Schmelzpunkt, wie Eisen, Kobalt oder Nickel, bestehen.
Als höher schmelzender Anteil der Legierung wurde bisher in Praxis vornehmlich Wolframkarbid benutzt, da die unter Benutzung von Wolframkarbid her gestellten Hartmetallegierungen die gün stigsten Eigenschaften hinsichtlich Härte, Festigkeit und Zähigkeit aufweisen und den unter Benutzung anderer schwer schmelz baren Karbide, wie beispielsweise Molybdän- karbid, Titankarbid und Siliziumkarbid her gestellten Ilartmetallegierungen weit über legen sind.
Es wurde festgestellt, dass bei derartigen aus einem schwer schmelzbaren Anteil und einem leichter schmelzenden Hilfsmetall be stehenden Irartmeiallegierungen die Anfor derungen an grosse Härte und ausreichende- Festigkeit und Zähigkeit auch erfüllt werden können, wenn der höher schmelzende Anteil der Legierung erfindungsgemäss aus einem Gemisch von Vanadinkarbid mit noch min destens einem andern Karbid der hochsehmel- zenden Metalle der fünften Gruppe des perio dischen Systems, also zum Beispiel aus einem Gemisch von Vanadinkarbid mit Niobkarbid,
oder von Vanadinkarbid mit Tantalkarbid, oder von Vanadinkarbid mit Niobkarbid und Tantalkarbid, besteht. Wie sich durch ein gehende Versuche ergeben hat, wird bei einer derart zusammengesetzten Hartmetallegie- rung die grosse Härte durch das vorhandene Niob- oder Tantalkarbid, die grosse Zähigkeit dagegen durch das ebenfalls vorhandene Vanadinkarbid hervorgerufen,
wobei durch die Gegenwart des letzteren gleichzeitig die durch das Vorhandensein des Niob- oder Tan- talkarbides auch hervorgerufene Sprödigkeit weitgehend beseitigt wird.
Als besonders zweckmässig hat sich eine bei etwa 2000'<B>C</B> gesinterte Legierung er- wiesen, die unter Zusatz von<B>2,5</B> 5o' bis<B>5</B> % Eisen oder Kobalt zu gleichen Teilen aus Vanadinkarbid und Niobkarbid bestellt. Je nachdem eine grössere Zähigkeit oder Härte des Fertigerzeugnisses erwünscht ist, kann im Karbidgemisch. entweder der Anteil des Vanadinkarbides oder aber auch 'der Anteil des Niobkarbides, bezw. Tantalkarbides über wiegen.
Die Menge des beigegebenen leich ter schmelzenden Zusatzmetalles kann ge- a.ebenenfalls, wie an sich bekannt, bis auf <B>25 %</B> der Gesamtmenge der Legierung ge steigert werden. Das Sintern der Legie rung kann anschliessend an ein Pressen des als Ausgangsmaterial verwendeten Pul vergemisches oder auch gleichzeitig mit dem Pressen erfolgen.
Sintered carbide alloy for implements and tools. For the production of tools and equipment, sintered hard metal alloys are often used, which consist of a hard-to-melt carbide and an additional auxiliary metal with a significantly lower melting point, such as iron, cobalt or nickel.
Tungsten carbide has primarily been used in practice as the higher-melting portion of the alloy, since the hard metal alloys produced using tungsten carbide have the most favorable properties in terms of hardness, strength and toughness and those using other difficult-to-melt carbides such as molybdenum carbide, Titanium carbide and silicon carbide made Ilartmetal alloys are far superior.
It was found that with such material alloys consisting of a difficult-to-melt part and a more easily melting auxiliary metal, the requirements for great hardness and sufficient strength and toughness can also be met if the higher-melting part of the alloy is made from a mixture of vanadium carbide according to the invention with at least one other carbide of the high-melting metals of the fifth group of the periodic system, for example from a mixture of vanadium carbide with niobium carbide,
or of vanadium carbide with tantalum carbide, or of vanadium carbide with niobium carbide and tantalum carbide. As has been shown by extensive tests, with such a composite hard metal alloy, the great hardness is caused by the niobium or tantalum carbide present, while the great toughness is caused by the vanadium carbide also present,
the presence of the latter at the same time largely eliminates the brittleness caused by the presence of the niobium or tannin carbide.
An alloy sintered at around 2000 'C' has proven to be particularly useful, which with the addition of <B> 2.5 </B> 50 'to <B> 5 </B>% Iron or cobalt ordered in equal parts from vanadium carbide and niobium carbide. Depending on whether greater toughness or hardness of the finished product is desired, the carbide mixture can be used. either the proportion of vanadium carbide or also 'the proportion of niobium carbide, respectively. Tantalum carbides outweigh.
The amount of the added more easily melting additional metal can also be increased, as is known per se, up to <B> 25% </B> of the total amount of the alloy. The sintering of the alloy can be carried out after pressing the powder mixture used as the starting material or at the same time as pressing.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE721024X | 1930-08-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH156814A true CH156814A (en) | 1932-08-31 |
Family
ID=6629016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH156814D CH156814A (en) | 1930-08-14 | 1931-08-03 | Sintered hard metal alloy for implements and tools. |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US1991912A (en) |
| AT (1) | AT148598B (en) |
| CH (1) | CH156814A (en) |
| FR (1) | FR721024A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2116584A (en) * | 1982-03-11 | 1983-09-28 | Metallurg Inc | Sintered hardmetals |
-
1931
- 1931-08-03 CH CH156814D patent/CH156814A/en unknown
- 1931-08-04 US US555072A patent/US1991912A/en not_active Expired - Lifetime
- 1931-08-04 FR FR721024D patent/FR721024A/en not_active Expired
- 1931-08-04 AT AT148598D patent/AT148598B/en active
Also Published As
| Publication number | Publication date |
|---|---|
| US1991912A (en) | 1935-02-19 |
| FR721024A (en) | 1932-02-26 |
| AT148598B (en) | 1937-02-10 |
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