PL428340A1 - Carbine composite and method of its production - Google Patents
Carbine composite and method of its productionInfo
- Publication number
- PL428340A1 PL428340A1 PL428340A PL42834018A PL428340A1 PL 428340 A1 PL428340 A1 PL 428340A1 PL 428340 A PL428340 A PL 428340A PL 42834018 A PL42834018 A PL 42834018A PL 428340 A1 PL428340 A1 PL 428340A1
- Authority
- PL
- Poland
- Prior art keywords
- cobalt
- weight
- powder
- tungsten carbide
- proportion
- Prior art date
Links
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- Cutting Tools, Boring Holders, And Turrets (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Ceramic Products (AREA)
Abstract
Przedmiotem zgłoszenia jest kompozyt węglikowy dla narzędzi skrawających oraz elementów maszyn i urządzeń narażonych na ścieranie, zawierający w swoim składzie węglik wolframu, kobalt i tlenek glinu, charakteryzuje się tym, że tlenek glinu ma postać włókien Al2O3(w) o średnicy od 1 nm do 5 µm i długości od 1 do 500 µm, w udziale od 1 do 30% mas., przy czym udział procentowy węglika wolframu WC wynosi od 60 do 90% mas. zaś udział procentowy kobaltu Co wynosi od 1 do 20% mas. Ponadto, zgłoszenie obejmuje sposób wytwarzania kompozytu węglikowego dla narzędzi skrawających oraz elementów maszyn i urządzeń narażonych na ścieranie, polegający na spiekaniu SPS mieszanki proszków z udziałem węglika wolframu WC, oraz proszku kobaltu Co, polega na tym, że mieszankę wyjściową zawierającą tlenek glinu w postaci włókien Al2O3(w) o średnicy od 1 nm do 5 µm i długości od 1 do 500 µm, w udziale od 1 do 30% mas., węglik wolframu w postaci proszku o wielkości ziarna od 0,1 do 6 µm, w udziale od 60 do 90% mas. oraz kobalt w postaci proszku o wielkości ziarna od 0,1 do 5 µm, w udziale od 1 do 20% mas., poddaje się spiekaniu przy ciśnieniu od 20 do 100 MPa w temperaturze od 1100 do 2000°C, przy czym prędkość nagrzewania do temperatury spiekania wynosi od 10 do 400°C/min a czas wytrzymania wsadu w temperaturze spiekania od 1 do 30 min.The subject of the application is a carbide composite for cutting tools and elements of machines and devices exposed to abrasion, containing tungsten carbide, cobalt and aluminum oxide, characterized by the fact that aluminum oxide is in the form of Al2O3 (w) fibers with a diameter of 1 nm to 5 µm and length from 1 to 500 µm, in the proportion from 1 to 30% by weight, with the percentage of WC tungsten carbide being from 60 to 90% by weight. and the percentage of cobalt Co is from 1 to 20 wt.%. In addition, the application covers a method of producing a carbide composite for cutting tools and components of machines and devices exposed to abrasion, consisting in SPS sintering a powder mixture with tungsten carbide WC and cobalt Co powder, consisting in the fact that the starting mixture containing alumina in the form of fibers Al2O3 (w) with a diameter from 1 nm to 5 µm and a length from 1 to 500 µm, in the proportion from 1 to 30% by weight, tungsten carbide in the form of a powder, grain size from 0.1 to 6 μm, in the proportion from 60 up to 90% by mass and cobalt in the form of a powder with a grain size of 0.1 to 5 µm, in a fraction of 1 to 20% by weight, is sintered at a pressure of 20 to 100 MPa at a temperature of 1100 to 2000 ° C, the heating speed up to sintering temperature is from 10 to 400 ° C / min and the time of holding the batch at the sintering temperature is from 1 to 30 minutes.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL428340A PL428340A1 (en) | 2018-12-27 | 2018-12-27 | Carbine composite and method of its production |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL428340A PL428340A1 (en) | 2018-12-27 | 2018-12-27 | Carbine composite and method of its production |
Publications (1)
Publication Number | Publication Date |
---|---|
PL428340A1 true PL428340A1 (en) | 2020-06-29 |
Family
ID=71124901
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PL428340A PL428340A1 (en) | 2018-12-27 | 2018-12-27 | Carbine composite and method of its production |
Country Status (1)
Country | Link |
---|---|
PL (1) | PL428340A1 (en) |
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2018
- 2018-12-27 PL PL428340A patent/PL428340A1/en unknown
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