Ungayisebenzisa Kanjani I-Tungsten Carbide

I-Tungsten carbide (WC) ngokwekhemikhali iyinhlanganisela kanambambili ye-tungsten nekhabhoni esilinganisweni se-stoichiometric esingu-93.87% se-tungsten no-6.13% wekhabhoni. Kodwa-ke, ngokwezimboni leli gama ngokuvamile lisho ama-tungsten carbides afakwe usimende; umkhiqizo we-metallurgical oyimpuphu onesinki ohlanganisa izinhlamvu ezinhle kakhulu ze-tungsten carbide ehlanzekile eboshwe noma ehlanganiswe ndawonye ku-matrix ye-cobalt. Ubukhulu bezinhlamvu ze-tungsten carbide busukela ku-½ kuye ku-10 microns. Okuqukethwe kwe-cobalt kungahluka kusuka ku-3 kuye ku-30%, kodwa ngokuvamile kuzoba kusuka ku-5 kuya ku-14%. Usayizi wokusanhlamvu nokuqukethwe kwe-cobalt kunquma ukusetshenziswa noma ukuphela kokusetshenziswa komkhiqizo oqediwe.

I-carbide enosimende ingenye yezinsimbi eziyigugu kakhulu, imikhiqizo ye-tungsten carbide esetshenziselwa ikakhulukazi ukwenza amathuluzi okusika nokwenza, ukubhoboza, ama-abrasives, ama-rock bits, i-dies, rolls, i-ordnance kanye nezinto zokugqoka ezingaphezulu. I-Tungsten carbide idlala indima ebalulekile ekuthuthukisweni kwemboni. Sonke siyazi ukuthi i-tungsten iwuhlobo lwezinto ezingavuseleleki. Lezi zimfanelo zenza i-tungsten carbide scrap ibe enye yezimbangi ezinhle kakhulu zokugaywa kabusha.

Indlela yokuvuselela i-tungsten kusuka ku-tungsten carbide? Kunezindlela ezintathu eChina.

Njengamanje, kunezinhlobo ezintathu ikakhulukazi zezinqubo zokuvuselelwa kabusha kwe-carbide zikasimende kanye nezinqubo zokuvuselela ezivame ukusetshenziswa emhlabeni, kuyindlela yokuncibilikisa i-zinc, indlela yokuchithwa kwe-electro-dissolution, kanye nendlela yomshini wokupondwa.

1. Indlela yokuncibilikisa uZinc:

Indlela yokuncibilikisa i-zinc ukufaka i-zinc ezingeni lokushisa elingu-900 °C ukuze kwakheke ingxubevange ye-zinc-cobalt phakathi kwe-cobalt ne-zinc ku-carbide enosimende edotiwe. Emazingeni athile okushisa, i-zinc ikhishwa nge-vacuum distillation ukuze yakhe i-alloy block efana nesipontshi bese igaywa, ihlanganiswe, futhi igaywe ibe yimpushana eluhlaza. Ekugcineni, imikhiqizo ye-carbide enosimende ilungiswa ngokwenqubo evamile. Kodwa-ke, le ndlela inotshalomali olukhulu lwemishini, izindleko eziphezulu zokukhiqiza, kanye nokusetshenziswa kwamandla, futhi kunzima ukususa ngokuphelele i-zinc, okuholela kukhwalithi yomkhiqizo engazinzile (ukusebenza). Ngaphezu kwalokho, i-zinc esetshenzisiwe e-disperant iyingozi emzimbeni womuntu. Kuphinde kube nenkinga yokungcoliswa kwemvelo kusetshenziswa le ndlela.

2. Indlela yokuhlakaza:

Indlela ye-electro-dissolution iwukusebenzisa i-ejenti yokukhipha ugesi efanele ukuncibilikisa i-cobalt yensimbi ehlanganisa udoti ku-carbide enosimende exazululweni le-leaching ngaphansi kwesenzo senkundla kagesi bese icutshungulwa ngamakhemikhali ibe yi-cobalt powder, eyobe isincibilika. Amabhulokhi e-alloy e-binder ayahlanzwa.

Ngemva kokuchotshozwa nokugaya, kutholakala i-tungsten carbide powder, futhi ekugcineni, umkhiqizo omusha we-carbide owenziwe usimende wenziwa ngokwenqubo evamile. Nakuba le ndlela inezici zekhwalithi yempushana enhle nokuqukethwe okuphansi kokungcola, inezinkinga zokugeleza kwenqubo ende, imishini ye-electrolysis eyinkimbinkimbi, kanye nokucutshungulwa okulinganiselwe kwe-tungsten-cobalt imfucuza ene-cemented carbide ene-cobalt engaphezu kuka-8%.

3. Indlela yendabuko yokuchotshozwa komshini:

Indlela yendabuko yokucolisisa ngomshini iyinhlanganisela yokugaywa okwenziwa ngesandla nokomshini, kanye ne-carbide enosimende egaywe ngesandla ifakwa odongeni lwangaphakathi ngepuleti le-carbide elinosimende kanye ne-crusher efakwe amabhola e-carbide anosayizi omkhulu. Ichotshozwa ibe yimpushana ngokugoqa kanye (nokugoqa) umthelela, bese ifakwa emanzini ibe yingxube, futhi ekugcineni yenziwe imikhiqizo ye-carbide enosimende ngokwenqubo evamile. Lolu hlobo lwendlela luchazwe esihlokweni esithi "Ukugaywa Kabusha, Ukuvuselelwa, kanye nokusetshenziswa kwe-Waste Cemented Carbide". Nakuba le ndlela inezinzuzo zenqubo emfushane kanye nokutshalwa kwezimali okuncane kwemishini, kulula ukuxuba okunye ukungcola endabeni, futhi okuqukethwe kwe-oxygen yezinto ezixubile kuphezulu, okunomthelela omkhulu kukhwalithi yemikhiqizo ye-alloy, futhi ayikwazi ukuhlangabezana nezidingo zamazinga okukhiqiza, futhi ibilokhu ikhona Ngaphezu kwalokho, ukusebenza kahle kokuchoboza kuphansi kakhulu, futhi ngokuvamile kuthatha amahora angaba ngu-500 wokugingqa nokugaya, futhi ngokuvamile kuba nzima ukufeza ukucoleka okudingekayo. Ngakho-ke, indlela yokwelapha yokuvuselela ayizange idume futhi isetshenziswe.

Uma ufuna ukufunda kabanzi mayelana nokuqhunyiswa kwe-abrasive, wamukelekile ukuthi usithinte ukuze uthole ulwazi olwengeziweion.