SU514031A1 - Sintered hard alloy based on titanium diboride - Google Patents
Sintered hard alloy based on titanium diborideInfo
- Publication number
- SU514031A1 SU514031A1 SU2056828A SU2056828A SU514031A1 SU 514031 A1 SU514031 A1 SU 514031A1 SU 2056828 A SU2056828 A SU 2056828A SU 2056828 A SU2056828 A SU 2056828A SU 514031 A1 SU514031 A1 SU 514031A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- titanium diboride
- hard alloy
- sintered hard
- alloy based
- cobalt
- Prior art date
Links
Description
1one
Изобретение относитс к порошковой металлургии , в частности к спеченным твердым сплавам на основе диборида титана, которые могут быть использованы дл изготовлени резцов и абразивного инструмента.The invention relates to powder metallurgy, in particular to sintered hard alloys based on titanium diboride, which can be used to make incisors and abrasive tools.
Известен -спеченный твердый сплав на основе диборида титана, имеющий следующий состав, вес. %:Known is a sintered hard alloy based on titanium diboride, having the following composition, wt. %:
Диборид титана10-90Titanium diboride 10-90
Карбид вольф1рамаДо 29Wolf1ram carbideUp to 29
КобальтДо 1CobaltDo 1
Однако известный сплав имеет недостаточно высокие твердость, прочность, абразивную способность и стойкость к окислению.However, the known alloy has not enough high hardness, strength, abrasive ability and resistance to oxidation.
Предлагаемый спеченный твердый сплав отличаетс от известного тем, что, с целью повышени твердости, прочности, абразивной способности и стойкости к окислению, его компоненты вз ты в следующем соотношении , вес. % Карбид вольфрама 23-25 Кобальт 13-13,5 Диборид титана Остальное При (Получении описываемого сплава осуществл ют тонкий помол шихты до удельной поверхности не менее 7-9 MVr, что способствует образованию мелкозернистой и малопористой структуры. Тонкна шихты зависит от времени помола диборида титана и кобальта твердосплавными шарамп, и поэтому дл получени порошка с удельной поверхностью 7-9 М-/Г необходимо вести помол пе менее 90-100 ч.The proposed sintered hard alloy differs from the known one in that, in order to increase hardness, strength, abrasive ability and oxidation resistance, its components are taken in the following ratio, weight. % Tungsten carbide 23-25 Cobalt 13-13,5 Titanium diboride Else When (Obtaining the described alloy, a fine grinding of the mixture to a specific surface of not less than 7-9 MVr is carried out, which contributes to the formation of a fine-grained and low-porous structure. titanium and cobalt carbide sharamp, and therefore, to obtain a powder with a specific surface of 7-9 M- / G, it is necessary to grind less than 90-100 hours.
Пример. Порошки исходных диборида титана 82 вес. % .и кобальта 18 вес. % .подвергают 90-часовому помолу твердосплавными шарами в вибромельниде в среде этанола; соотношение шихта : этанол : мелющие тела 1:1:6.Example. Powders of the original titanium diboride 82 wt. %. And cobalt 18 wt. %. Subject to 90-hour grinding with carbide balls in vibromelide in ethanol; the ratio of the charge: ethanol: grinding bodies 1: 1: 6.
Таким образом получают щихту следующего состава, вес. %: tiB, 63,4; VC 23,1 п Со 13,5; удельна поверхность 7 м-/г. Из полученного материала с использованием в качестве св зки 2%-ного водного раствора поливинилового спирта полусухим методом прессуют резцовые пластины в виде щестигранников размером 18X5 мм, которые после сущки спекают в вакууме 10--10- мм рт. ст. с трехчасовой выдержкой при 1550°С.So get schichtu the following composition, weight. %: tiB, 63.4; VC 23.1 n Co 13.5; surface area 7 m- / g. From the obtained material, using a 2% aqueous solution of polyvinyl alcohol as a binder, the cutting plates are pressed with a semi-dry method using 18X5 mm hexagons, which are sintered in a vacuum of 10–10 mm Hg after drying. Art. with a three-hour exposure at 1550 ° C.
Основные свойства предложенного п известного сплавов приведены в таблице.The main properties of the proposed n known alloys are given in the table.
Из таблицы видно, что предложенный оплав имеет более высокие свойства, чем известный сплав.The table shows that the proposed oplav has higher properties than the known alloy.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU2056828A SU514031A1 (en) | 1974-09-02 | 1974-09-02 | Sintered hard alloy based on titanium diboride |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU2056828A SU514031A1 (en) | 1974-09-02 | 1974-09-02 | Sintered hard alloy based on titanium diboride |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU514031A1 true SU514031A1 (en) | 1976-05-15 |
Family
ID=20595079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU2056828A SU514031A1 (en) | 1974-09-02 | 1974-09-02 | Sintered hard alloy based on titanium diboride |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU514031A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4402764A (en) * | 1981-03-05 | 1983-09-06 | Turbine Metal Technology, Inc. | Method for producing abrasion and erosion resistant articles |
| WO1984004713A1 (en) * | 1983-05-27 | 1984-12-06 | Ford Werke Ag | Method of making and using a titanium diboride comprising body |
| DE4203443A1 (en) * | 1991-02-08 | 1993-08-12 | Toyo Kohan Co Ltd | HEAT-RESISTANT SINKED CARBIDE ALLOY |
| EP0844050A3 (en) * | 1993-05-10 | 2001-01-24 | Kennametal Inc. | Group IV-B boride based articles, cutting tools, methods of making, and method of machining group IV-B based materials |
-
1974
- 1974-09-02 SU SU2056828A patent/SU514031A1/en active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4402764A (en) * | 1981-03-05 | 1983-09-06 | Turbine Metal Technology, Inc. | Method for producing abrasion and erosion resistant articles |
| WO1984004713A1 (en) * | 1983-05-27 | 1984-12-06 | Ford Werke Ag | Method of making and using a titanium diboride comprising body |
| DE4203443A1 (en) * | 1991-02-08 | 1993-08-12 | Toyo Kohan Co Ltd | HEAT-RESISTANT SINKED CARBIDE ALLOY |
| EP0844050A3 (en) * | 1993-05-10 | 2001-01-24 | Kennametal Inc. | Group IV-B boride based articles, cutting tools, methods of making, and method of machining group IV-B based materials |
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