ʻO nā ʻano hou o ka Carbide Cemented

1. ʻO ka palaoa maikaʻi a me ka carbide palaoa ultra-fine

Ma hope o ka hoʻomaʻemaʻe ʻana i ka palaoa o ka carbide cemented, e liʻiliʻi ka nui o ka ʻāpana carbide cemented, a ʻoi aku ka maikaʻi o ka hoʻopili ʻana a puni ka ʻāpana carbide cemented, hiki ke hoʻomaikaʻi i ka paʻakikī a me ke kūpaʻa ʻana o ka carbide cemented. Akā, ua emi ka ikaika o ka piko. Hiki ke hoʻonui ʻia ka ikaika kulou ma o ka hoʻonui ʻana i ka ʻike o ka cobalt i loko o ka binder kūpono. ʻO ka nui o ka palaoa: ʻo nā mea hana maʻamau maʻamau YT15, YG6, a me nā mea ʻē aʻe he ʻano ʻai, ʻo ka nui o ka palaoa he 2 ~ 3μm.；tHe 1.5 ~ 2μm ka nui o ka palaoa awelika, a he 1.0 ~ 1.3μm ka micron palaoa carbide. ʻO Submicrograin carbide ka 0.6 ~ 0.9μm；tʻO ia ka carbide kristal ultra-maikaʻi he 0.4 ~ 0.5μm; ʻO ka nano-series microcrystalline carbide he 0.1 ~ 0.3μm; Ua hōʻea nā mea hana ʻoki carbide o Kina i ke kiʻekiʻe o ka palaoa maikaʻi alalo-maikaʻipalaoa.

2.TiC base carbide

ʻO TiC ke kino nui, ʻoi aku ma mua o 60% a 80%, me Ni ~ Mo i mea hoʻopaʻa, a hoʻohui i kahi liʻiliʻi o nā carbide ʻē aʻe o ka alloy, ʻaʻole i loaʻa ka WC. Ke hoʻohālikelike ʻia me ka WC base alloy, ʻo TiC ka paʻakikī kiʻekiʻe loa i ka carbide, no laila ʻoi aku ka kiʻekiʻe o ka paʻakikī paʻakikī e like me HRA90 ~ 94, he kiʻekiʻe nō hoʻi ke kūpaʻa lole, hiki ke hoʻohana i ka anti-crescentless, ka wela wela, ke kūpaʻa oxidation a me ke kūpaʻa kemika, a me ka liʻiliʻi ka pilina me ka mea hana, liʻiliʻi ke kumu friction, ikaika ke kūpaʻa adhesion, ʻoi aku ka lōʻihi o ka mea hana ma mua o WC, no laila hiki ke hana ʻia ke kila a me ka hao. Ke hoʻohālikelike ʻia me YT30, kokoke ka paʻakikī o YN10, maikaʻi ka weldability a me ka ʻoi, a hiki iā ia ke hoʻololi iā YT30. Akā ʻaʻole hiki i ka WC ka ikaika kulou, hoʻohana nui ʻia no ka hoʻopau ʻana a me ka semi-finishing. Ma muli o kona kūpaʻa maikaʻi ʻole i ka deformation plastic a me ka hāʻule ʻana o ka ʻaoʻao, ʻaʻole kūpono ia no ka ʻoki kaumaha a me ka ʻoki intermittent.

3.Hoʻohui ʻia ka carbide sima me nā mea ʻene honua

Aia i loko o nā ʻano mea hana carbide carbide laha ʻole ka honua, me ka hoʻohui ʻana i kahi mea liʻiliʻi o nā mea ʻenehana honua (nā helu atomika ma ka papa manawa o nā mea kemika he 57-71 (mai La a Lu), a me 21 a me 39 (Sc a Y) mau mea, he 17 mau mea, loa'a nā mea honua laha 'ole ma (W, Ti)C a i 'ole (W, Ti, Ta, Nb)C ka hopena pa'a. Hiki iā ia ke hoʻoikaika i ka pae paʻakikī, keʻakeʻa i ka ulu ʻole ʻana o nā kīʻaha WC a hoʻolilo iā lākou i ʻoi aku ka lole, a ua hoʻemi ʻia ka nui o ka palaoa. Hoʻoheheʻe ʻia kekahi mau mea liʻiliʻi liʻiliʻi o ka honua i loko o ka pae hoʻopaʻa Co, ka mea e hoʻoikaika ai i ka pae hoʻopaʻa a hoʻomāhuahua i ka hale. Hoʻonui ʻia nā mea ʻano honua laha ʻole ma ke kikowaena o WC/Co a ma waena o ke kikowaena o (W, Ti)C, (W, Ti)C, etc., a hui pinepine me nā haumia S, O, etc., e hana i nā pūhui e like me ia. e like me RE2O2S, ka mea e hoʻomaikaʻi i ka maʻemaʻe o ka pilina a hoʻonui i ka pulu o ka pae paʻakikī a me ka pae paʻa. ʻO ka hopena, ua hoʻomaikaʻi maikaʻi ʻia ka paʻakikī o ka hopena, ka ikaika kulou a me ka pale ʻana o ka carbide cemented earth. ʻO kona lumi wela a me ka paʻakikī kiʻekiʻe o ka wela, ke kūpaʻa a me ka hiki o ka anti-diffusion a me ka anti-oxidation ma ka ʻili o ka mea hana i hoʻomaikaʻi ʻia. I ka wā o ka ʻoki ʻana, hiki ke hoʻohaʻahaʻa maikaʻi ke kumu friction ma waena o ka chip, ka mea hana a me ka mea hana, a me ka hōʻemi ʻana i ka ikaika ʻoki. No laila, hoʻomaikaʻi maikaʻi ʻia nā waiwai mechanical a me nā ʻokiʻoki. Ua waiwai ʻo Kina i nā kumu waiwai o ka honua, a ʻo ka noiʻi a me ka hoʻomohala ʻana i ka carbide cemented earth ma mua o nā ʻāina ʻē. Ua hoʻomohala ʻia nā mea hoʻohui P, M, K e hoʻohui i nā māka honua laha.

4.Ua uhi ʻia me ka carbide sima

Ua ʻōlelo ʻo DuʻO ka paʻakikī a me ke kūpaʻa ʻana o ka carbide cemented he maikaʻi, ʻilihune ka paʻakikī, ma o ka deposition chemical vapor (CVD) a me nā ʻano hana ʻē aʻe, ma ka ʻili o ka carbide cemented i uhi ʻia me kahi papa (5 ~ 12μm) o ka paʻakikī maikaʻi, ke kūpaʻa lole kiʻekiʻe. o ka waiwai (TiC, TiN, Al2O3), ka hookumu ana i uhiia cemented carbide, no laila, he kiʻekiʻe paʻakikī a me ke kapa komo kiʻekiʻe o ka ili, a me ka matrix ikaika; No laila, hiki iā ia ke hoʻomaikaʻi i ke ola o ka mea hana a me ka hoʻoponopono ʻana i ka pono, hoʻemi i ka ikaika ʻoki a me ka ʻoki ʻana i ka mahana, hoʻomaikaʻi i ka maikaʻi o ka ʻili mīkini, a hoʻomaikaʻi nui i ka paʻa o ka mea hana i ka wikiwiki ʻoki like. I nā makahiki he 20 i hala iho nei, ua ulu nui nā pahi carbide i uhi ʻia, a ua helu ʻia ma mua o 50% a 60% ohiki ke kuhikuhinā mea hana ma nā ʻāina ʻoihana holomua. ʻOi aku ka maikaʻi o nā lau i uhi ʻia no ka hoʻohuli mau ʻana a hoʻohana ʻia no ka hoʻopau ʻana, semi-finishing a maʻalahi hoʻi i ka hoʻouka ʻana i nā mea hao kalapona like ʻole, nā kila kila kila (me ka normalizing a me ka hoʻomaʻamaʻa ʻana), nā kila ʻoki maʻalahi, nā kila kila, nā kila kila martensitic a me ka hina hina. hao.

5. carbide helu ʻia

ʻO Carbide i kekahi mau hihia, i ka hoʻohui ʻana i ke koi o ka paʻakikī o ka ʻili kiʻekiʻe a me ke kū kūʻē ʻana, akā pono nō hoʻi e loaʻa i kahi hopena maikaʻi. Ordinary cemented carbide paakiki a me ka ikaika, toughness a me ka lole pale ana ma waena o ka like constraints, na mea elua hiki ole i elua. Hoʻoponopono ka mea gradient hana i nā pilikia i luna aʻe i loko o ka carbide cemented, hōʻike ia mau ʻāpana i ka puʻunaue gradient o Co i loko o ka hale, ʻo ia hoʻi, ʻoi aku ka haʻahaʻa o ka papa o waho o ka alloy ma mua o ka maʻi Co nominal o ka ʻāpana cobalt-poor layer, ka ʻOi aku ka kiʻekiʻe o ka papa waena ma mua o ka maʻiʻo Co nominal o ka ʻāpana kobalt-waiwai alloy, a ʻo ke kumu ka WC-Co-η ʻekolu-phase microstructure. Ma muli o ke kiʻekiʻe o ka WC ma luna o ka ʻili, he kiʻekiʻe ka paʻakikī a me ke kūpaʻa maikaʻi; ʻO ka papa waena he kiʻekiʻe Co maʻiʻo a me ka paʻakikī maikaʻi. No laila, ʻo kona ola lawelawe he 3 a 5 mau manawa o ka carbide cemented kuʻuna like, a hiki ke hoʻoponopono ʻia ke ʻano o kēlā me kēia papa e like me nā pono.

E hōʻuluʻulu，ma o ka hoʻokaʻawale ʻana a me ka hoʻomaʻemaʻe ʻana o ka carbide cemented, hiki iā mākou ke ʻike ua hoʻomaikaʻi maikaʻi ʻia ke ʻano hou o ka mea hana carbide cemented no ka mea hana maʻamau, ma kekahi ʻaoʻao, ka hoʻohana ʻana i nā mea ʻāpana maikaʻi a me nā mea ʻāpana ultra-fine o ka carbide cemented, me he hui pono o ka paakiki a me ka ikaika. Eia kekahi, hiki i nā kaʻina hana hou e like me ka sintering kaomi ke hoʻomaikaʻi hou i ka maikaʻi o loko o ka carbide cemented. Ma ka lima ʻē aʻe, ʻo ka mea hana honua i hoʻomohala ʻia e ka mea hana carbide integral kiʻekiʻe e hana i ka wikiwiki o ka ʻoki ʻana, ka ʻoki ʻana i ka pono a me ke ola mea hana i nā manawa he nui ma mua o ke kila kiʻekiʻe. ʻO ka hana ʻana o kēia mau mea hana hou e hoʻopiha nui i nā hemahema o ka carbide sima. ʻO ka hoʻomohala ʻana o nā mea hana carbide, no laila mai kāna noi kūʻokoʻa i ka hana o ka hoʻonui ʻana i ka hoʻomohala ʻana o ka ʻenehana mea hana hou i nā pono hoʻohui o nā mea, nā mea e hoʻololi ai i ke kumu kūʻai. E hoʻohana ʻia i kahi kiʻekiʻe a ākea o nā māla ʻoki. 

Manaʻolana hiki i kēia ʻatikala ke kōkua iā ʻoe e hoʻomaopopo maikaʻi i ka carbide cemented i kekahi ʻano. Ma waho aʻe o kēia, e ʻoluʻolu e heluhelu i ka hapa mua o“Hoʻokaʻawale a hoʻopaʻa ʻana i nā mea hana ʻoki Carbide Cemented”. E kelepona mai iā mākou inā he nīnau a koi paha kāu e pili ana i nā huahana carbide.