Momwe Mungabwezeretsere Tungsten Carbide

Tungsten carbide (WC) ndi mankhwala opangidwa ndi tungsten ndi carbon mu stoichiometric ratio ya 93.87% tungsten ndi 6.13% carbon. Komabe, m'makampani mawuwa nthawi zambiri amatanthauza ma tungsten carbides; chinthu chopangidwa ndi zitsulo zopangidwa ndi sintered zokhala ndi njere zabwino kwambiri za tungsten carbide zomangidwa kapena zomangidwa pamodzi mu matrix a cobalt. Kukula kwa njere za tungsten carbide kumachokera ku ½ mpaka 10 microns. Zomwe zili mu cobalt zimatha kusiyana ndi 3 mpaka 30%, koma nthawi zambiri zimakhala kuyambira 5 mpaka 14%. Kukula kwambewu ndi cobalt kumatsimikizira kugwiritsa ntchito kapena kutha kwa chinthu chomwe chamalizidwa.

Simenti ya carbide ndi imodzi mwazitsulo zamtengo wapatali kwambiri, zopangidwa ndi tungsten carbide zomwe zimagwiritsidwa ntchito makamaka popanga zida zodulira ndi kupanga, zobowolera, zomatira, miyala, kufa, zogudubuza, zotchingira ndi kuvala zida zapamwamba. Tungsten carbide imagwira ntchito yofunika kwambiri pakukula kwamakampani. Tonse tikudziwa kuti tungsten ndi mtundu wazinthu zosasinthika. Izi zimapangitsa kuti tungsten carbide scrap ikhale imodzi mwazomwe zimapikisana kwambiri pakubwezeretsanso.

Momwe mungabwezeretsere tungsten kuchokera ku tungsten carbide? Pali njira zitatu ku China.

Pakali pano, pali makamaka mitundu itatu ya simenti yobwezeretsanso carbide ndi njira zosinthira zomwe zimagwiritsidwa ntchito padziko lonse lapansi, ndi njira yosungunula zinki, njira yosungunulira ma elekitirodi, ndi njira yopukutira makina.

1. Njira yosungunula zinki:

Njira yosungunula zinki ndikuwonjezera zinki pa kutentha kwa 900 ° C kuti apange aloyi ya zinki-cobalt pakati pa cobalt ndi zinki mu carbide yotayidwa ndi zinyalala. Pa kutentha kwina, zinki amachotsedwa ndi vacuum distillation kuti apange chitsulo chofanana ndi siponji ndiyeno nkuphwanyidwa, kuswanidwa, ndi kupedwa kukhala ufa. Pomaliza, zinthu zopangidwa ndi simenti za carbide zimakonzedwa molingana ndi njira wamba. Komabe, njira iyi ili ndi ndalama zazikulu za zida, mtengo wapamwamba wopanga, komanso kugwiritsa ntchito mphamvu, ndipo ndizovuta kuchotsa zinki kwathunthu, zomwe zimapangitsa kuti zinthu zikhale zosakhazikika (machitidwe). Komanso, ntchito dispersant zinki ndi zoipa kwa thupi la munthu. Palinso vuto lowononga chilengedwe pogwiritsa ntchito njirayi.

2. Njira yothetsera:

Njira yothetsera ma electro-dissolution ndikugwiritsa ntchito cholumikizira choyenera kuti chisungunuke chitsulo chomangira chitsulo mu carbide yotayira mu zinyalala zotayira mu njira ya leaching pansi pa mphamvu yamagetsi ndikuyipanga kukhala ufa wa cobalt, womwe udzasungunuka. Zidutswa za alloy za binder zimatsukidwa.

Pambuyo kuphwanya ndikupera, tungsten carbide ufa amapezedwa, ndipo potsiriza, mankhwala atsopano a simenti amapangidwa motsatira ndondomeko yachizolowezi. Ngakhale njirayi ili ndi mawonekedwe a ufa wabwino komanso zonyansa zochepa, ili ndi zovuta zakuyenda kwanthawi yayitali, zida zovuta za electrolysis, komanso kukonza kochepa kwa zinyalala za tungsten-cobalt zomata simenti ya carbide yokhala ndi cobalt yoposa 8%.

3. Njira yachikhalidwe yophwanyira makina:

Njira yachikhalidwe yamakina opunthira ndikuphatikiza kupukuta kwamanja ndi kumakina, ndipo zinyalala zokhala ndi simenti zomwe zidapusidwa pamanja zimayikidwa mkati mwakhoma lamkati ndi mbale ya simenti ya carbide ndi chopondapo chokhala ndi mipira yayikulu simenti ya carbide. Imaphwanyidwa kukhala ufa ndi kugubuduza ndi (kugubuduza) zotsatira, ndiyeno yonyowa-pansi kukhala osakaniza, ndipo potsirizira pake amapangidwa kukhala mankhwala opangidwa ndi simenti ya carbide molingana ndi ndondomeko yachizolowezi. Njira yamtunduwu ikufotokozedwa m'nkhani yakuti "Kubwezeretsanso, Kukonzanso, ndi Kugwiritsa Ntchito Zinyalala Zopangidwa ndi Cemented Carbide". Ngakhale njira iyi ili ndi ubwino wa ndondomeko yaifupi ndi ndalama zochepetsera zida, n'zosavuta kusakaniza zonyansa zina muzinthu, ndipo mpweya wa zinthu zosakanikirana ndi wochuluka, womwe umakhudza kwambiri khalidwe la aloyi, ndi sangathe kukwaniritsa zofunikira pakupanga, ndipo nthawi zonse wakhala Kuonjezera apo, kuphwanya bwino kumakhala kochepa kwambiri, ndipo nthawi zambiri kumatenga pafupifupi maola 500 akugudubuza ndikupera, ndipo nthawi zambiri zimakhala zovuta kukwaniritsa fineness yofunikira. Choncho, njira yochiritsira yotsitsimutsa sinatchulidwe ndikugwiritsidwa ntchito.

Ngati mukufuna kudziwa zambiri za kuphulika kwa abrasive, tikukulandirani kuti mutidziwe zambiriion.