ʻO ka hapa nui o nā mea maka o nā mea refractory no nā mea bismuth non-plastic, a paʻakikī ke hoʻoponopono iā lākou i nā huahana semi-hoʻopau iā lākou iho.No laila, pono e hoʻohana i kahi mea hoʻopaʻa kūlohelohe o waho a i ʻole kahi mea hoʻopaʻa inorganic a i ʻole kahi hui hui.Hoʻopili ʻia nā ʻano mea ʻokoʻa refractory ʻokoʻa i ka hoʻopaʻa ʻana a pololei e hana i kahi mea lepo me ka hāʻawi ʻana i nā ʻāpana like ʻole, ka hāʻawi ʻana i ka wai like ʻole, kekahi plasticity a maʻalahi hoʻi a me nā huahana semi-finished.Pono e hoʻokō i kahi kaʻina hana me ka hana kiʻekiʻe, ka hopena hui maikaʻi a me ka hui ʻana kūpono.
(1) Pākuʻi ʻāpana
Hiki ke hana ʻia ka billet (mud) i huahana me ka puʻupuʻu puʻupuʻu kiʻekiʻe loa ma ke koho ʻana i ka haku melemele kūpono.ʻO ka manaʻo, ua hoʻāʻo ʻia kahi pōʻai hoʻokahi-nui o nā ʻīniha like ʻole a me nā mea like ʻole, a ʻaneʻane like ka mānoanoa nui.I kekahi hihia, ʻo ka porosity he 38% ± 1%.No laila, no ka pōpō hoʻokahi-nui, kūʻokoʻa kona mānoanoa nui a me ka porosity i ka nui o ka pōleʻa a me nā waiwai waiwai, a ua hoʻopaʻa mau ʻia i kahi ʻano hexagonal me ka helu hoʻonohonoho o 8.
ʻO ke ʻano o ka hoʻopaʻa ʻana i ka manaʻo o kahi ʻāpana like o ka nui he cube, he kolamu oblique hoʻokahi, kolamu oblique composite, ʻano pyramidal, a me kahi tetrahedron.Hōʻike ʻia nā ʻano hana hoʻopaʻa ʻokoʻa o ka pōʻai like ʻole ma ke kiʻi 24. Hōʻike ʻia ka pilina ma waena o ke ʻano deposition o nā ʻāpana hoʻokahi a me ka porosity ma ka Papa 2-26.
I mea e hoʻonui ai i ka nui o ka nui o ka mea a hoʻemi i ka porosity, ua hoʻohana ʻia kahi ʻāpana o ka nui o nā mea like ʻole, ʻo ia hoʻi, ua hoʻohui ʻia kekahi helu o nā ʻāpana liʻiliʻi i ka pōʻai nui e hoʻonui ai i ka haku ʻana o ka pōʻai, a me ka pilina. ma waena o ka leo i noho ʻia e ka pōʻai a me ka porosity i hōʻike ʻia ma ka papa.2-27.
Me nā mea clinker, he 4. 5 mm nā ʻāpana koʻikoʻi, ʻo nā ʻāpana waena he 0.7 mm, nā ʻāpana maikaʻi he 0.09 mm, a ua hōʻike ʻia ka hoʻololi ʻana o ka porosity clinker o ka clinker ma ke Kiʻi 2-5.
Mai ka Figure 2-5, ʻo 55% ~ 65% nā ʻāpana koʻikoʻi, ʻo nā ʻāpana waena he 10% ~ 30%, a ʻo ka pauka maikaʻi he 15% ~ 30%.Hiki ke hoʻemi ʻia ka porosity i 15.5%.ʻOiaʻiʻo, hiki ke hoʻoponopono pono ʻia nā mea hana o nā mea refractory kūikawā e like me ke ʻano o ke kino a me ke ʻano o nā mea.
(2) Mea hoʻopili no nā huahana refractory kūikawā
Ma muli o ke ʻano o ka mea refractory kūikawā a me ke ʻano hana hoʻoheheʻe, ʻo nā mea paʻa hiki ke hoʻohana ʻia:
(1) Grouting method, gum arabic, polyvinyl butyral, hydrazine methyl cellulose, sodium acrylate, sodium alginate, a me na mea like.
(2) ʻO ke ʻano o ke kaomi ʻana, me nā lubricants, glycols,
ʻO ka waiʻona polyvinyl, methyl cellulose, starch, dextrin, maltose a me ka glycerin.
(3) ʻO ke ʻano o ka wai wela wela, nā mea hoʻopaʻa: paraffin wax, beeswax, lubricants: oleic acid, glycerin, stearic acid a me nā mea like.
(4) Keʻano hoʻolei, mea hoʻopaʻa paʻa: methyl cellulose, ethyl cellulose, cellulose acetate, polyvinyl butyral, polyvinyl alcohol, acrylic;plasticizer: polyethylene glycol, dioctane Phosphoric acid, dibutyl peroxide, etc.;mea hoʻopuehu: glycerin, oleic acid;mea hoʻoheheʻe: ethanol, acetone, toluene, a me nā mea like.
(5) Injection method, thermoplastic resin polyethylene, polystyrene, polypropylene, acetyl cellulose, propylene resin, etc., hiki ke wela i ka resin phenolic paakiki;lubricant: ʻakika stearic.
(6) Isostatic pressing method, polyvinyl alcohol, methyl cellulose, me ka hoʻohana ʻana i ka wai ʻōpala sulfite pulp, phosphate a me nā paʻakai inorganic ʻē aʻe i ka hana ʻana i nā pellets.
(7) Ke ala paʻi, methyl cellulose, dextrin, polyvinyl alcohol, sulfite pulp waste liquid, syrup a i ʻole nā paʻakai anorganic like ʻole;ʻO ka wai ʻawaʻawa sulfite pulp, methyl cellulose, gum arabic , dextrin a i ʻole nā paʻakai inorganic a inorganic, e like me ka phosphoric acid a i ʻole phosphates.
(3) Hoʻohui no nā huahana refractory kūikawā
I mea e hoʻomaikaʻi ai i kekahi mau waiwai o nā huahana refractory kūikawā, e hoʻomalu i ka hoʻololi ʻana i ke ʻano aniani o ka ʻatikala, e hoʻemi i ka wela puhi o ka ʻatikala, a hoʻohui i kahi mea hoʻohui i ka lako.ʻO kēia mau mea hoʻohui ʻia ka nui o nā metala oxides, non-metal oxides, rare earth metal oxides, fluorides, borides a me phosphates.No ka laʻana, hiki i ka hoʻohui ʻana i ka 1% ~ 3% boric acid (H2BO3) i ka γ-Al2O3 ke hoʻoikaika i ka hoʻololi.ʻO ka hoʻohui ʻana o 1% a 2% TiO2 iā Al2O3 hiki ke hoʻemi nui i ka mahana ahi (ma kahi o 1600 ° C).ʻO ka hoʻohui ʻana o TiO2, Al2O3, ZiO2, a me V2O5 iā MgO e hoʻoikaika i ka ulu ʻana o nā hua cristobalite a hoʻohaʻahaʻa i ka wela puhi o ka huahana.Hiki ke ho'ohui 'ia o CaO, MgO, Y2O3 a me nā mea ho'ohui 'ē a'e i ka ZrO2 raw material i mea pa'a pa'a cubic zirconia i pa'a mai ka lumi wela a hiki i 2000 °C ma hope o ka mālama 'ana i ka wela ki'eki'e.
(4) Keʻano a me nā mea hana no ka huiʻana
ʻano hui maloʻo
ʻO ka mixer countercurrent inclined ikaika i hana ʻia e Shandong Konyle ka nui o 0.05 ~ 30m3, kūpono no ka hui ʻana i nā pauka like ʻole, granules, flakes a me nā mea haʻahaʻa haʻahaʻa, a ua hoʻolako ʻia me kahi mea hoʻohui wai a me ka spraying.
2. ʻO ke ʻano hui pū ʻana
Ma ke ʻano hui ʻana o ka pulu maʻamau, hoʻokomo ʻia nā mea hoʻohui o nā ʻano mea maka i loko o kahi hui honua i hoʻolako ʻia me kahi liner pale no ka wili maikaʻi.Ma hope o ka hana ʻia ʻana o ka slurry, hoʻohui ʻia kahi plasticizer a me nā mea hoʻohui ʻē aʻe e hoʻoponopono ai i ka nui o ka lepo, a hui maikaʻi ʻia ka hui ʻana i loko o kahi huila lepo honua, a granulated a maloʻo i loko o kahi mea maloʻo granulation.
Mea hui honua
3. ʻO ke ʻano hui ʻana o ka plastik
No ka hana ʻana i kahi ʻano hana hoʻohui ʻia no kahi huahana refractory kūikawā blank kūpono no ka hana ʻana i ka plastic a i ʻole ka hana ʻana i ka lepo.Ma kēia ʻano, hui pū ʻia nā ʻano mea maka, admixtures, plasticizers, a me nā lubricants a me ka wai ma luna o kahi hui honua, a laila hui ʻia a hui pū ʻia ma luna o kahi mea hoʻohui ikaika kiʻekiʻe e wehe i nā ʻōhū i loko o ka lepo.I mea e hoʻomaikaʻi ai i ka plasticity o ka lepo, ua hui pū ʻia ka ʻōpala me ka mea palau, a ua kau ʻia ka lepo i ka lua o ka hui ʻana ma ka mīkini palolo ma mua o ka hoʻoheheʻe ʻana.Hoʻokumu ʻo Koneile i nā mea huila kiʻekiʻe a ikaika e like me ka hōʻike ʻana ma lalo nei:
Mea hoʻohui maikaʻi a ikaika
Mea hui kūʻē
4. ʻO keʻano huila semi-maloʻo
He kūpono no ka hui ʻana me ka haʻahaʻa haʻahaʻa.Pono ka hoʻohana ʻana i ke ʻano semi-dry mixing no nā huahana refractory kūikawā i hana ʻia e ka mīkini e nā mea granular (coarse, medium and fine three-stage ingredients).Lawe ʻia nā mea ʻai i loko o kahi hui one, kahi wili pulu, kahi hui honua a i ʻole kahi hui hoʻoikaika.
ʻO ke kaʻina hana hui ʻana ʻo ka hoʻomaloʻo mua i ka hui ʻana i nā māka like ʻole o nā granules, e hoʻohui i ka wai wai i loaʻa ka mea hoʻopaʻa (inorganic a i ʻole organik), a hoʻohui i ka pauka maikaʻi i hui pū ʻia (me ke kōkua puhi ahi, mea hoʻonui, a me nā mea hoʻohui ʻē aʻe).ʻO ka luna) ua hui maikaʻi ʻia.ʻO ka manawa hui nui he 20 ~ 30min.Pono ka lepo i hui pū ʻia e pale i ka hoʻokaʻawale ʻana i ka nui o ka nui o ka ʻāpana a e puʻunaue like ʻia ka wai.Inā pono, pono e hoʻopaʻa pono ʻia ka lepo i ka wā e hoʻoheheʻe ai.
Hoʻomaluʻia ka maʻemaʻe o ka lepo i hanaʻia ma ka 2.5% a hiki i ka 4%;ʻO ka maʻamau o ka mea i hoʻoheheʻe ʻia i ka lepo e hoʻomalu ʻia ma 4.5% a 6.5%;a ua hoʻomaluʻia ka maʻamau o ka huahana vibrating molded ma 6% a 8%.
(1) ʻO ka hana ʻenehana o ka CMP moʻo o nā mea hui honua pono i hana ʻia e Kone.
(2) Ka hana ʻenehana o ka mea hui one pulu
5. ʻO ke ʻano hui ʻana o ka lepo
ʻO ke ʻano o ka hui ʻana o ka lepo no ka hana ʻana i nā huahana ceramic refractory kūikawā, ʻoi aku ka nui o ka slurry lepo no ka gypsum injection molding, casting molding and injection molding.ʻO ke ʻano o ka hana ʻana ʻo ka hoʻohui ʻana i nā ʻano mea maka, hoʻoikaika i nā mea hana, nā mea hoʻokuʻu, admixtures a me 30% a 40% o ka wai maʻemaʻe i loko o ka wili pōleʻa (mixing mill) me ka lole pale pale, a hui a wili ma hope o kekahi manawa. manawa., i hana ʻia i loko o ka lepo lepo no ka hana ʻana.I ke kaʻina hana o ka lepo, pono e hoʻomalu i ka nui a me ka pH o ka lepo e like me nā ʻano waiwai a me nā koi o ka hoʻolei ʻana iā ia iho.
Mea hoʻohui ikaika countercurrent
ʻO nā mea hana nui i hoʻohana ʻia i ke ʻano hui ʻana o ka lepo, ʻo ia ka wili pōleʻa, ka mea hoʻoheheʻe ea, ka hao pulu pulu, ka pauma lepo, ka deaerator vacuum, a me nā mea like.
6. ʻO ke ʻano hui ʻana o ka wela
ʻO nā mea paʻa paʻa (a i ʻole viscous) ka paraffin a me ka resin-based i ka mahana maʻamau, ʻaʻole hiki ke hoʻohui ʻia i ka lumi wela, a pono e wela a hui ʻia.
Hoʻohana ʻia ka paraffin i mea hoʻopaʻa i ka wā e hoʻohana ai i ke kaʻina hana hoʻoheheʻe wela.No ka mea he 60 ~ 80 ° C ka helu heheʻe o ka paraffin wax, ua wela ka paraffin wax ma luna o 100 ° C i ka hui ʻana a maikaʻi ka wai.A laila hoʻohui ʻia ka pauka maikaʻi i ka paraffin wai, a ma hope o ka hui ʻana a me ka hui ʻana, hoʻomākaukau ʻia ka mea.Hoʻokumu ʻia ka keke wax e ka hoʻolei wela wela.
ʻO ka mea hui nui no ka hoʻomehana ʻana i ka hui ʻana he mea hoʻouluulu wela.
Ka manawa hoʻouna: Oct-20-2018