Nā ʻano o ka graphite kūikawā

ʻO ka graphite kūikawā kahi maʻemaʻe kiʻekiʻe, kiʻekiʻe kiʻekiʻe a me ka ikaika kiʻekiʻegraphitemea a he maikaʻi ke kūpaʻa corrosion, ke kūpaʻa wela kiʻekiʻe a me ka conductivity uila nui. Hana ʻia ia me ka graphite kūlohelohe a i ʻole ma hope o ka mālama ʻana i ka wela wela a me ka hoʻoili kiʻekiʻe kiʻekiʻe a hoʻohana mau ʻia i nā noi ʻoihana i ke kiʻekiʻe wela, ke kiʻekiʻe kiʻekiʻe a me nā wahi corrosive.
Hiki ke hoʻokaʻawale ʻia i nā ʻano like ʻole me ka isostaticpoloka graphite, nā poloka graphite extruded, moldedpoloka graphitea haalulupoloka graphite.

ʻenehana hana hana:

graphitehe mea ʻokoʻa ʻole metala i haku ʻia me nā ʻātoma kalapona i hoʻonohonoho ʻia i loko o kahi ʻano lattice hexagonal. He mea palupalu a palupalu i hoʻohana mau ʻia i nā ʻano hana ʻenehana ma muli o kāna mau ʻano ʻokoʻa. Hiki i ka graphite ke mālama i kona ikaika a me kona kūpaʻa a hiki i nā mahana ma mua o 3600 °C. I kēia manawa e hoʻolauna wau i ke kaʻina hana o ka graphite kūikawā.

Isostatic graphite, i hana ʻia me ka graphite maʻemaʻe kiʻekiʻe ma ke kaomi ʻana, he mea hiki ʻole ke hoʻololi ʻia i ka hana ʻana i nā kapuahi aniani hoʻokahi, metala hoʻolei mau ʻana i nā graphite crystallizers, a me nā electrodes graphite no ka mīkini hoʻoheheʻe uila. Ma waho aʻe o kēia mau noi nui, hoʻohana nui ʻia ia i nā māla o nā ʻāpana paʻakikī (nā umu wela wela, nā papa sintering, a me nā mea ʻē aʻe), ka mining (hana ʻana i nā mold drill bit), ʻoihana kemika (nā mea hoʻololi wela, nā ʻāpana corrosion). nā mea hoʻoheheʻe ʻia (crucibles), a me nā mīkini (seals mechanical).

ʻenehana Molding

Hoʻokumu ʻia ke kumu o ka ʻenehana kaomi isostatic ma ke kānāwai o Pascal. Hoʻololi ia i ka hoʻoemi unidirectional (a i ʻole bidirectional) o ka mea i loko o ka kaomi multi-directional (omnidirectional). I ka wā o ke kaʻina hana, aia nā ʻāpana kalapona i kahi kūlana ʻino, a ua kūlike ka nui o ka leo me nā waiwai isotropic. Ma waho aʻe, ʻaʻole ia e pili i ke kiʻekiʻe o ka huahana, no laila e hana ai i ka graphite isostatic ʻaʻohe ʻokoʻa hana.
E like me ka mahana i hana ʻia ai ka hoʻokumu ʻana a me ka paʻa ʻana, hiki ke hoʻokaʻawale ʻia ka ʻenehana kaomi isostatic i ke kaomi isostatic anuanu, kaomi isostatic mahana, a me ke kaomi isostatic wela. He kiʻekiʻe kiʻekiʻe nā huahana kaomi Isostatic, maʻamau 5% a 15% kiʻekiʻe ma mua o nā huahana unidirectional a bidirectional mold pressing. Hiki ke hiki i ka 99.8% a hiki i ka 99.09% ka pili pili o nā huahana kaomi isostatic.

Loaʻa i ka graphite i hoʻoheheʻe ʻia nā hana koʻikoʻi i ka ikaika mechanical, abrasion resistance, density, hardness and electrical conductivity a hiki ke hoʻomaikaʻi hou ʻia kēia mau hana ma o ka hoʻokomo ʻana i ka resin a i ʻole metala.
ʻO ka graphite i hoʻoheheʻe ʻia nā hiʻohiʻona maikaʻi conductivity uila, kiʻekiʻe wela kū'ē, corrosion kū'ē, kiʻekiʻe maʻemaʻe, self-lubrication, thermal shock kū'ē a me ka maʻalahi machining machining, a ua nui hoʻohana 'ia i loko o ka mahinaʻai o ka hoʻolei 'ana, paakiki alloy a me ka uila make sintering, uila uila. sila mechanical, etc.

ʻenehana Molding

Hoʻohana pinepine ʻia ke ʻano hana hoʻoheheʻe e hana i ka graphite liʻiliʻi liʻiliʻi a i ʻole nā ​​​​huahana i hoʻolālā maikaʻi ʻia. ʻO ke kumu o ka hoʻopiha ʻana i kahi nui o ka paʻi i loko o kahi ʻano o ke ʻano a me ka nui i makemake ʻia, a laila e hoʻopili i ke kaomi mai luna a lalo. I kekahi manawa, e hoʻopili i ke kaomi mai nā ʻaoʻao ʻelua e hoʻopaʻa i ka paʻi i loko o ke ʻano. Hoʻopau ʻia ka huahana semi-finished i kaomi ʻia, hoʻoluʻu, nānā ʻia a hoʻopaʻa ʻia.
Loaʻa nā mīkini hoʻoheheʻe kū pololei a me ka pae. ʻO ke ʻano molding maʻamau hiki ke kaomi i hoʻokahi huahana i ka manawa, no laila he haʻahaʻa haʻahaʻa. Eia naʻe, hiki iā ia ke hana i nā huahana kiʻekiʻe i hiki ʻole ke hana ʻia e nā ʻenehana ʻē aʻe. Eia kekahi, hiki ke hoʻomaikaʻi ʻia ka hana hana ma o ke kaomi like ʻana o nā ʻāpana he nui a me nā laina hana automated.

Hoʻokumu ʻia ka graphite extruded ma ka hui ʻana i nā ʻāpana graphite maʻemaʻe kiʻekiʻe me kahi mea paʻa a laila e hoʻokuʻu iā lākou i kahi extruder. Ke hoʻohālikelike ʻia me ka graphite isostatic, ʻoi aku ka nui o ka palaoa a me ka ikaika haʻahaʻa o ka graphite extruded, akā ʻoi aku ka kiʻekiʻe o ka thermal a me ka uila.
I kēia manawa, hana ʻia ka hapa nui o nā huahana kalapona a me ka graphite ma ke ʻano extrusion. Hoʻohana nui ʻia lākou e like me nā mea wela a me nā ʻāpana conductive thermal i nā kaʻina mālama wela wela. Eia kekahi, hiki ke hoʻohana ʻia nā poloka graphite e like me nā electrodes e hoʻokō i ka hoʻololi o kēia manawa i nā kaʻina electrolysis. No laila, hoʻohana nui ʻia lākou e like me ka mechanical seal, thermal conductive material a me nā mea electrode i nā wahi koʻikoʻi e like me ke kiʻekiʻe kiʻekiʻe, ke kaomi kiʻekiʻe, a me ka wikiwiki kiʻekiʻe.

ʻenehana Molding

ʻO ke ʻano extrusion ʻo ka hoʻouka ʻana i ka paʻi i loko o ka cylinder paste o ka paʻi a hoʻokuʻu iā ia. Hoʻolako ʻia ka mīkini paʻi me kahi apo extrusion hiki ke hoʻololi ʻia (hiki ke hoʻololi ʻia e hoʻololi i ke ʻano cross-sectional a me ka nui o ka huahana) i mua o ia, a hāʻawi ʻia kahi baffle neʻe i mua o ke apo extrusion. Aia ka plunger nui o ka paʻi ma hope o ka pahu paʻi.
Ma mua o ka hoʻokomo ʻana i ke kaomi, e kau i kahi pahu ma mua o ke apo extrusion, a e hoʻopili i ke kaomi mai ka ʻaoʻao ʻē aʻe e kaomi i ka paʻi. Ke wehe ʻia ka baffle a hoʻomau ʻia ke kaomi ʻana, hoʻopau ʻia ka paʻi mai ke apo extrusion. E ʻoki i ka ʻili i hoʻokuʻu ʻia i ka lōʻihi i makemake ʻia, e hoʻomaha a nānā iā ia ma mua o ka hoʻopaʻa ʻana. ʻO ke ʻano extrusion kahi kaʻina hana semi-continuous, ʻo ia ka mea ma hope o ka hoʻohui ʻia ʻana o kahi nui o ka paʻi, hiki ke hoʻomau mau ʻia nā huahana (nā poloka graphite, nā mea graphite).
I kēia manawa, hana ʻia ka hapa nui o nā huahana kalapona a me ka graphite ma ke ʻano extrusion.

He ʻano like ʻole ka graphite vibrated me ka nui o ka palaoa. Ma waho aʻe, lilo ia i mea kaulana loa ma muli o kona ʻano lehu haʻahaʻa, hoʻonui ʻia ka ikaika mechanical, a me ke kūpaʻa uila a me ka wela, a hoʻohana nui ʻia no ka hana ʻana i nā mea hana nui. Hiki ke hoʻoikaika hou ʻia ma hope o ka resin impregnation a i ʻole ka lāʻau anti-oxidation.
Hoʻohana nui ʻia ʻo ia ma ke ʻano he mea hoʻomehana & insulation i ka hana ʻana o polysilicon a me monocrystalline silicon furnaces i ka ʻoihana photovoltaic. Hoʻohana nui ʻia ia i ka hana ʻana i nā puʻu wela, nā mea hoʻololi wela, ka hoʻoheheʻe ʻana a me ka hoʻolei ʻana i nā crucibles, ke kūkulu ʻana i nā n nodes i hoʻohana ʻia i nā kaʻina electrolytic, a me ka hana ʻana i nā crucibles no ka hoʻoheheʻe ʻana a me ka hoʻohuihui.

ʻenehana Molding

ʻO ke kumu o ka hana ʻana i ka graphite vibrated ʻo ia ka hoʻopiha ʻana i ka mold me kahi hui ʻana e like me ka paʻi, a laila kau i kahi pā metala kaumaha ma luna. I ka pae aʻe, hoʻopili ʻia ka mea ma ka haʻalulu ʻana i ka mold. Ke hoʻohālikelike ʻia me ka graphite extruded, ʻo ka graphite i hana ʻia e ka vibration ʻoi aku ka isotropy kiʻekiʻe. Hoʻopuka ʻia nā huahana graphite ma ke ʻano extrusion.