I. Ibigize Ibikoresho
1. Icyiciro gikomeye: Tungsten Carbide (WC)
- Urwego: 70-95%
- Ibyingenzi: Yerekana ubukana bwa ultra-high no kwambara birwanya, hamwe na Vickers gukomera ≥1400 HV.
- Ingaruka yubunini bwingano:
- Ingano nini (3-8 mm): Gukomera cyane no kurwanya ingaruka, bikwiranye no gushiraho hamwe na kaburimbo cyangwa bikomeye.
- Ingano nziza / Ultrafine (0.2-22m): Kongera imbaraga no kwambara birwanya, nibyiza kumiterere ikabije cyane nka quartz sandstone.
2. Icyiciro cya Binder: Cobalt (Co) cyangwa Nickel (Ni)
- Urwego: 5-30%, ikora nka "metallic adhesive" kugirango uhuze tungsten karbide ibice kandi bitange ubukana.
- Ubwoko n'ibiranga:
- Cobalt-ishingiye (Guhitamo Mainstream):
- Ibyiza: Imbaraga nyinshi mubushyuhe bwo hejuru, ubushyuhe bwiza bwumuriro, hamwe nuburyo bwiza bwo gukanika.
- Gushyira mu bikorwa: Byinshi mubisanzwe kandi ubushyuhe bwo hejuru (cobalt ikomeza kuba munsi ya 400 ° C).
- Nickel-ishingiye (Ibisabwa bidasanzwe):
- Ibyiza: Kurwanya ruswa ikomeye (irwanya H₂S, CO₂, hamwe n’amazi menshi yo gucukura).
- Gushyira mu bikorwa: Imirima ya gaze ya acide, urubuga rwo hanze, nibindi bidukikije byangirika.
- Cobalt-ishingiye (Guhitamo Mainstream):
3. Ibyongeweho (Optimisation ya Micro-Urwego)
- Chromium Carbide (Cr₃C₂): Itezimbere okiside kandi igabanya gutakaza icyiciro cya binder mugihe cy'ubushyuhe bwo hejuru.
- Tantalum Carbide (TaC) / Niobium Carbide (NbC): Irabuza imikurire yintete kandi izamura ubushyuhe bwo hejuru.
II. Impamvu zo Guhitamo Tungsten Carbide Ikomeye
| Imikorere | Ibyiza bisobanura |
|---|---|
| Kwambara Kurwanya | Ubukomezi bwa kabiri nyuma ya diyama, irwanya isuri nuduce duto duto nk'umusenyi wa quartz (igipimo cyo kwambara inshuro 10+ munsi yicyuma). |
| Ingaruka zo Kurwanya | Gukomera kuva cobalt / nikel binder icyiciro birinda gucikamo ibice kunyeganyega kumanuka no gutitira (cyane cyane ingano-ingano + ya cobalt yo hejuru). |
| Ubushyuhe bwo hejuru | Ikomeza gukora ku bushyuhe bwo hasi bwa 300-500 ° C (ibivanze na cobalt bifite ubushyuhe bwa ~ 500 ° C). |
| Kurwanya ruswa | Amavuta ya Nickel arwanya ruswa yangirika ya sulfure irimo amazi yo gucukura, ikongerera igihe cya serivisi mubidukikije. |
| Ikiguzi-Cyiza | Igiciro gito cyane ugereranije na diyama / cubic boron nitride, hamwe nubuzima bwa serivisi inshuro 20-50 zicyuma cya nozzles, gitanga inyungu nziza muri rusange. |
III. Gereranya nibindi bikoresho
| Ubwoko bwibikoresho | Ibibi | Gusaba |
|---|---|---|
| Diamond (PCD / PDC) | Ubugome bukabije, kurwanya ingaruka mbi; bihenze cyane (~ 100x ya karubide ya tungsten). | Ni gake ikoreshwa kuri nozzles; rimwe na rimwe mubihe bidasanzwe byo kugerageza. |
| Cubic Boron Nitride (PCBN) | Kurwanya ubushyuhe bwiza ariko gukomera; bihenze. | Ultra-deep-high-temperature hard formations (non -stream). |
| Ubukorikori (Al₂O₃ / Si₃N₄) | Gukomera cyane ariko ubugome bukomeye; ubukana bwumuriro mubi. | Muri laboratoire yo kwemeza, itaragera kubucuruzi. |
| Ibyuma-Byinshi-Byuma | Kurwanya kwambara bidahagije, ubuzima bwigihe gito. | Ibice byo hasi cyangwa ubundi buryo bwigihe gito. |
IV. Icyerekezo cyubwihindurize
1. Ibikoresho byiza
- Nanocrystalline Tungsten Carbide: Ingano y'ibinyampeke <200nm, ubukana bwiyongereyeho 20% utabangamiye ubukana (urugero, Sandvik Hyperion ™ seri).
- Imiterere Yakozwe.
2. Gukomeza Ubuso
- Diamond Coating (CVD): Filime 2-5μm yongerera ubukana hejuru ya> 6000 HV, ikongerera ubuzima kuri 3-5x (kwiyongera kw'ibiciro 30%).
- Laser Cladding: WC-Co ibice byashyizwe ahantu hashobora kwibasirwa nozzle kugirango hongerwe imbaraga zo kwambara.
3. Gukora inyongeramusaruro
- 3D-Yacapwe Tungsten Carbide: Gushoboza guhuza imiyoboro igoye (urugero, Venturi yubatswe) kugirango tunoze neza hydraulic.
V. Ibintu by'ingenzi byo gutoranya ibikoresho
| Imikorere | Icyifuzo |
|---|---|
| Kwiyubaka cyane | Ingano nziza / ultrafine-ingano WC + hagati ya cobalt yo hagati (6-8%) |
| Ingaruka / ibice bikunda guhindagurika | Intete nini WC + cobalt ndende (10–13%) cyangwa imiterere |
| Acide (H₂S / CO₂) ibidukikije | Nickel ishingiye kuri binder + Cr₃C₂ inyongera |
| Amariba maremare cyane (> 150 ° C) | Cobalt ishingiye kuri alloy + TaC / NbC inyongeramusaruro (irinde nikel ishingiye ku mbaraga zubushyuhe bwo hejuru) |
| Imishinga-igiciro | Ibinyampeke bisanzwe-WC + 9% cobalt |
Umwanzuro
- Kwigenga kw'isoko.
- Imikorere: Guhuza n'ibibazo bitandukanye byo gushiraho binyuze muguhindura ingano ya WC, igipimo cya cobalt / nikel, hamwe ninyongera.
- Gusimburwa: Igumana igisubizo cyiza cyo kuringaniza imyambarire, gukomera, nigiciro, hamwe nikoranabuhanga rigezweho (nanocrystallisation, coatings) kurushaho kwagura imipaka ikoreshwa.
Igihe cyo kohereza: Jun-03-2025
