Pehea e hana hou ai i ka Tungsten Carbide

ʻO Tungsten carbide (WC) he mea kemika he hui binary o ka tungsten a me ke kalapona i ka ratio stoichiometric o 93.87% tungsten a me 6.13% kalapona. Eia nō naʻe, ma ka ʻoihana, ʻo ka huaʻōlelo ka mea maʻamau i ka cemented tungsten carbide; he huahana metallurgical pauda i hoʻopaʻa ʻia i loko o nā huaʻai maikaʻi loa o ka tungsten carbide maʻemaʻe i hoʻopaʻa ʻia a i hoʻopaʻa ʻia paha i loko o kahi pahu cobalt. ʻO ka nui o ka tungsten carbide grains mai ka ½ a 10 microns. Hiki ke hoʻololi ʻia ka ʻike cobalt mai 3 a 30%, akā maʻamau maʻamau mai 5 a 14%. Hoʻoholo ka nui o ka palaoa a me ka cobalt i ka hoʻohana ʻana a i ʻole ka hoʻohana hope ʻana o kahi huahana i hoʻopau ʻia.

ʻO ka carbide Cemented kekahi o nā metala waiwai nui, nā huahana tungsten carbide e hoʻohana nui ʻia no ka hana ʻana a me ka hana ʻana i nā mea hana, drills, abrasives, rock bits, dies, rolls, ordnance and wear surfacing materials. He kuleana koʻikoʻi ka tungsten carbide i ka hoʻomohala ʻana i ka ʻoihana. Ua ʻike mākou a pau ʻo tungsten kahi ʻano mea hiki ʻole ke hoʻololi ʻia. Hana kēia mau hiʻohiʻona i ka tungsten carbide scrap kekahi o nā mea hakakā maikaʻi loa no ka hana hou ʻana.

Pehea e hana hou ai i ka tungsten mai ka tungsten carbide? ʻEkolu ala ma Kina.

I kēia manawa, ʻekolu mau ʻano o ka hoʻoheheʻe ʻana i ka carbide cemented a me nā kaʻina hana hou i hoʻohana mau ʻia i ka honua, ʻo ia ke ʻano hoʻoheheʻe zinc, ke ʻano electro-dissolution, a me ke ʻano pulverization mechanical.

1. Keʻano hoʻoheheʻe Zinc:

ʻO ke ʻano hoʻoheheʻe zinc e hoʻohui i ka zinc ma kahi mahana o 900 °C e hana i kahi hui zinc-cobalt ma waena o ka cobalt a me ka zinc i loko o ka carbide cemented. Ma kahi mahana, hoʻoneʻe ʻia ka zinc e ka hoʻoheheʻe ʻia ʻana e hana i kahi poloka e like me ka sponge a laila ʻoki ʻia, ʻohi ʻia, a hoʻoheheʻe ʻia i loko o ka pauka maka. ʻO ka hope, hoʻomākaukau ʻia nā huahana carbide cemented e like me ke kaʻina hana maʻamau. Eia nō naʻe, ʻo kēia ʻano hana he waiwai nui o nā lako, ke kumu kūʻai kiʻekiʻe, a me ka hoʻohana ʻana i ka ikehu, a paʻakikī ke hoʻopau loa i ka zinc, e hopena i ka maikaʻi o ka huahana (hana). Eia kekahi, ʻo ka zinc dispersant i hoʻohana ʻia he mea pōʻino i ke kino o ke kanaka. Aia kekahi pilikia hoʻohaumia kaiapuni e hoʻohana ana i kēia ʻano hana.

2. Keʻano hoʻopau:

ʻO ke ala electro-dissolution ʻo ia ka hoʻohana ʻana i kahi mea hoʻoheheʻe kūpono e hoʻoheheʻe i ka cobalt metala paʻa i loko o ka ʻōpala cemented carbide i loko o ka hopena leaching ma lalo o ka hana a ke kahua uila a laila hana kemika i ka pauka cobalt, a laila e hoʻoheheʻe ʻia. Hoʻomaʻemaʻe ʻia nā ʻāpana ʻōpala o ka mea hoʻopili.

Ma hope o ka ʻoki ʻana a me ka wili ʻana, loaʻa ka pauka tungsten carbide, a ʻo ka hope, hana ʻia kahi huahana carbide cemented hou e like me ke kaʻina hana maʻamau. ʻOiai aia kēia ʻano i nā ʻano o ka maikaʻi o ka pauka maikaʻi a me ka haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa, loaʻa iā ia nā hemahema o ka holo kaʻina hana lōʻihi, nā lako electrolysis paʻakikī, a me ka hana palena ʻole o ka tungsten-cobalt waste cemented carbide me ka cobalt content ʻoi aku ma mua o 8%.

3. ʻO ke ʻano hana kuʻuna mīkini ʻokiʻoki:

ʻO ka hana kuʻuna mechanical pulverization ka hui pū ʻana o ka manual a me ka mechanical pulverization, a ʻo ka ʻōpala cemented carbide i hoʻoheheʻe ʻia me ka lima i hoʻokomo ʻia i loko o ka paia o loko me kahi pā carbide lining a me kahi mea hoʻoheheʻe i hoʻolako ʻia me nā pōpō carbide cimented nui. Hoʻopiʻi ʻia ia i ka pauka ma ka ʻōwili ʻana a me ka hopena (rolling), a laila lepo lepo i loko o ka hui ʻana, a hana hope i nā huahana carbide cemented e like me ke kaʻina hana maʻamau. Ua wehewehe ʻia kēia ʻano hana ma ka ʻatikala "Recycling, Regeneration, and Utilization of Waste Cemented Carbide". ʻOiai ʻo kēia ʻano ka maikaʻi o kahi kaʻina pōkole a me ka liʻiliʻi o ka hoʻolimalima ʻana i nā mea hana, maʻalahi ka hui ʻana i nā mea haumia ʻē aʻe i loko o ka mea, a kiʻekiʻe ka ʻike o ka oxygen o ka mea i hui pū ʻia, a he hopena koʻikoʻi i ka maikaʻi o nā huahana alloy, a ʻAʻole hiki ke hoʻokō i nā koi o nā kūlana hana, a ʻo ia hoʻi, ʻoi aku ka haʻahaʻa o ka hana ʻoki ʻana, a ma kahi o 500 mau hola o ka ʻōwili ʻana a me ka wili ʻana, a paʻakikī pinepine ka hoʻokō ʻana i ka fineness i koi ʻia. No laila, ʻaʻole i hoʻolaha ʻia a hoʻohana ʻia ke ʻano lapaʻau regeneration.

Inā makemake ʻoe e aʻo hou e pili ana i ka abrasive blasting, e ʻoluʻolu e kelepona mai iā mākou no ka ʻike hou akuion.