Uhlobo Lokusebenza Lwe-Carbide Nozzle Scenario Ukuzijwayeza kanye Nokubona Ivelu

Imibhobho ye-Carbide iyizici ezinembayo ezenziwe ngokufaka izinto eziqinile ze-carbide (ikakhulukazi i-tungsten carbide, i-WC) enezibophezelo zensimbi (njenge-cobalt, i-Co). Ngokuzigqaja ngobulukhuni be-Vickers obungaphezu kuka-1300 HV, ukumelana nokugqokwa okuhle kakhulu (okuphindwe izikhathi ezingu-10-20 ngaphezu kwensimbi enesivinini esikhulu), kanye nokuzinza okuqinile kokushisa, sekuphenduke izingxenye eziwumgogodla ezingenakuthathelwa indawo emikhakheni efana nokucubungula kwezimboni, amandla, nogesi. Ukhiye wokukhulisa inani labo lohlelo lokusebenza ukujwayela uhlobo lwesimo esinembile—ukufanisa uhlobo lombhobho olufanele nezimo ezithile zokusebenza ukuze kulinganisele ukusebenza, ukuqina, kanye nokusebenza kahle kwezindleko.

Ezimeni zokucubungula ijethi elibi, okuhlanganisa ukuqhunyiswa kwesihlabathi ukuze kususwe ukugqwala okungaphezulu kanye nokusikwa kwejethi lamanzi anomfutho omkhulu wamapuleti ensimbi, udonga lwangaphakathi lombhobho lulokhu luthinteka futhi luhujwa izinhlayiya ze-abrasive ezinesivinini esikhulu (esifika ku-800 m/s) (isb., i-alumina, i-silicon carbide). Ngenxa yalokhu, ama-fine-grain carbide nozzles (onosayizi wokusanhlamvu we-tungsten carbide we-0.5-1μm) ayisinqumo esifanele. I-microstructure yabo eminyene kakhulu inciphisa ukungena kwezinhlayiya ezilumayo, inciphisa izinga lokuguga kwangaphakathi odongeni ngokuphawulekayo—inweba impilo yesevisi izikhathi ezingu-3-5 uma kuqhathaniswa nemibhobho ye-ceramic evamile futhi inciphisa isikhathi sokuphumula esishintsha njalo.

Ezimeni zezimboni ezinezinga eliphezulu lokushisa eliphezulu ezifana nokuhlanzwa kwegesi encibilikayo yensimbi kanye nokwelashwa kwe-carbon eshisiwe, imibhobho kufanele imelane nokuchayeka isikhathi eside kumazinga okushisa angu-800-1000℃ kuyilapho igcina ukusimama kokugeleza komoya. Lapha, imibhobho ye-tungsten-cobalt carbide (enokuqukethwe kwe-cobalt binder engu-6% -8%) yenza kahle kakhulu. Isibophezelo se-cobalt sakha isibopho esizinzile ngezinhlamvu ze-tungsten carbide, evimbela ukuqhekeka kwesakhiwo okubangelwa ukushaqeka okushisayo kanye nokuqinisekisa umphumela ongaguquki we-spray atomization, obalulekile ekuqothulweni kwegesi ye-flue ephumelelayo nokususwa kothuli.

Ezinkambini zokulethwa koketshezi olunembayo njengokuhlanza i-semiconductor chip kanye nephaneli ye-LCD, ngisho nokunyakaza okuncane koketshezi kungaholela ekulimaleni okuncane (isb., imihuzuko yesikali esingu-0.1μm) endaweni yomkhiqizo. Imibhobho ye-carbide epholishiwe—enodonga lwangaphakathi oluqinile lwe-Ra≤0.02μm (okuzuzwe ngokunemba okunezinyathelo eziyi-12)—asuse ama-eddies oketshezi, avumele ukumbozwa kwesifutho esifanayo (ngokuchezuka okungaphansi kuka-5%) futhi ahlangabezane nezidingo zokunemba okuphezulu kakhulu kwemboni ye-semiconductor.

Ezindaweni zezimayini ezisindayo (isb., ukucindezela uthuli lwezimayini zamalahle ngaphansi komhlaba kanye nokuthuthwa kwamapayipi okucubungula amaminerali), imibhobho ibhekana nezinselele ezimbili: ukushayisana kwemishini okuvela ezicucu zamalahle/zamatshe kanye nokugqwala okuvela emanzini anothile ngamaminerali. Imibhobho ye-carbide enezindonga eziwugqinsi (nokuqina kodonga okungu-5-8mm, izikhathi ezingu-2-3 kunezimbobo ezijwayelekile) kanye nembobo engaphezulu evimbela ukugqwala (isb., i-chromium plating) ixazulula le nkinga. Zehlisa imvamisa yokushintshanisa ngama-60% uma kuqhathaniswa nezimbobo zensimbi ezijwayelekile, zehlisa izindleko zokulungisa amabhizinisi ezimayini.

Ukugcwaliseka kwevelu kwemibhobho ye-carbide kusuka kulokhu kusebenzisana kohlobo lwesimo esijulile. Ngokuhlanganisa amafomula wezinto ezibonakalayo (isb., ukulungisa okuqukethwe kwe-cobalt), imiklamo yesakhiwo (isb., izindonga eziqina), kanye nokucubungula okunembayo (isb., ukupholisha okucolise kakhulu) kuya ezidingweni ezithile zemboni, abehlisi nje kuphela izindleko zokulungisa ngo-30% -50% futhi bathuthukisa ukusebenza kahle kokukhiqiza ngo-20% -30% kodwa futhi basekela umkhakha wezobuchwepheshe obuphezulu—ubuchwepheshe besimanje. ukusika ingxenye (edinga imibhobho enobukhulu obuyi-±0.005mm). Njengoba izimboni ezifana namandla amasha, ama-semiconductors, kanye ne-aerospace ziphishekela amazinga aphezulu okusebenza, ukwenza ngokwezifiso ama-carbide nozzles okugxile esimweni kuzovula amandla azo, kube umshayeli oyinhloko wokuthuthukiswa kwezimboni nokuthuthukiswa kwekhwalithi ephezulu.