Mazhinji ezvigadzirwa zvezvigadzirwa zvekuramba ndezvezvinhu zvisiri zvepurasitiki bismuth, uye zvakaoma kuzvigadzirisa kuita semi-yakapera zvigadzirwa ivo voga.Naizvozvo, zvinodikanwa kushandisa yekunze organic binder kana inorganic binder kana yakasanganiswa binder.Iyo yakasiyana-siyana yakakosha refractory mbishi zvinhu zvinoiswa pasi pekuomesera uye kwakaringana batching kugadzira dhaka zvinhu zvine yunifomu kugovera, yunifomu yekugovera mvura, mamwe mapurasitiki uye nyore kugadzira uye semi-akapedza zvigadzirwa.Izvo zvinodikanwa kutora maitiro ekugadzira ane hunyanzvi hwepamusoro, yakanaka yekusanganisa mhedzisiro uye yakakodzera musanganiswa.
(1) Kufananidza chikamu
Iyo billet (dhaka) inogona kugadzirwa kuti ive chigadzirwa chine yakanyanya kuwanda density nekusarudza inonzwisisika particle composition.Nechepfungwa, saizi imwe chete mativi emainji akasiyana uye akasiyana zvinhu akaedzwa, uye kuwanda kwehuwandu hwakanga hwakafanana.Chero zvazvingave, iyo porosity yaive 38% ± 1%.Naizvozvo, kune imwe saizi bhora, kuwanda kwayo uye porosity zvakasununguka kubva pakukura kwebhora uye zvinhu zvemukati, uye zvinogara zvakarongedzerwa mune hexagonal chimiro nenhamba yekubatanidza ye8.
Iyo theoretical stacking nzira yechikamu chimwe chehukuru hwakafanana ine cube, imwe oblique column, composite oblique column, pyramidal shape, uye tetrahedron.Nzira dzakasiyana-siyana dzekugadzirisa dzehukuru hwakafanana hunoratidzwa mumufananidzo 24. Ukama huri pakati pekugadzirisa nzira yezvikamu zvimwechete uye porosity inoratidzwa muTebhu 2-26.
Kuti uwedzere kuwanda kwechinyorwa uye kuderedza porosity, sphere yeakaenzana particle size inoshandiswa, kureva kuti, imwe nhamba yediki diki inowedzerwa kune yakakura sphere kuwedzera kuumbwa kwe sphere, uye hukama. pakati pevhoriyamu inogarwa nesphere uye porosity inoratidzwa mutafura.2-27.
Nezvishongedzo zveclinker, zvimedu zvakakora zvinokwana 4. 5 mm, zvikamu zvepakati zvinokwana 0.7 mm, zvipembenene zvakanaka zvinokwana 0.09 mm, uye kuchinja kweclinker porosity ye clinker inoratidzwa mumufananidzo 2-5.
Kubva kuMufananidzo 2-5, zvidimbu zvakakora ndeye 55% ~ 65%, zvikamu zvepakati ndeye 10% ~ 30%, uye hupfu hwakatsetseka 15% ~ 30%.Iyo inooneka porosity inogona kuderedzwa kusvika 15.5%.Ehe, izvo zvinongedzo zveakakosha refractory zvinhu zvinogona kugadziridzwa zvakakodzera zvinoenderana nehunhu hwemuviri uye chimiro chechidimbu chemidziyo.
(2) Bonding agent kune yakakosha refractory zvigadzirwa
Zvichienderana nerudzi rweakakosha refractory zvinhu uye nzira yekuumba, mabhaidha anogona kushandiswa ndeaya:
(1) Grouting nzira, gum arabic, polyvinyl butyral, hydrazine methyl cellulose, sodium acrylate, sodium alginate, nezvimwe zvakadaro.
(2) Nzira yekusvina, kusanganisira mafuta ekuzora, glycols,
Polyvinyl doro, methyl cellulose, starch, dextrin, maltose uye glycerin.
(3) Nzira yejekiseni yewakisi inopisa, zvisungo ndezvi: parafini wakisi, wakisi, mafuta ekuzora: oleic acid, glycerin, stearic acid nezvimwe zvakadaro.
(4) Nzira yekukanda, yekubatanidza: methyl cellulose, ethyl cellulose, cellulose acetate, polyvinyl butyral, polyvinyl doro, acrylic;plasticizer: polyethylene glycol, dioctane Phosphoric acid, dibutyl peroxide, nezvimwewo;kuparadzira mumiririri: glycerin, oleic acid;solvent: ethanol, acetone, toluene, nezvimwewo.
(5) Injection nzira, thermoplastic resin polyethylene, polystyrene, polypropylene, acetyl cellulose, propylene resin, nezvimwewo, inogonawo kupisa yakaoma phenolic resin;lubricant: stearic acid.
(6) Isostatic kudzvanya nzira, polyvinyl doro, methyl cellulose, kushandisa sulfite pulp tsvina mvura, phosphate uye mamwe inorganic munyu pakugadzira pellets.
(7) Dhinda nzira, methyl cellulose, dextrin, polyvinyl doro, sulfite pulp tsvina mvura, sirasi kana akasiyana inorganic munyu;sulfite pulp tsvina mvura, methyl cellulose, gum arabic, dextrin kana inorganic uye inorganic acid munyu, senge phosphoric acid kana phosphates.
(3) Admixtures akakosha refractory zvigadzirwa
Kuti uvandudze zvimwe zvivakwa zveakasarudzika refractory zvigadzirwa, dzora iyo yekristaro fomu yekushandura yechinyorwa, kuderedza kupisa kwekupisa kwechinyorwa, uye kuwedzera hushoma hwemusanganiswa kune fenicha.Izvi zvakasanganiswa zvakanyanya simbi oxides, isiri-metal oxides, isingawanzo pasi simbi oxides, fluorides, borides uye phosphates.Semuenzaniso, kuwedzera 1% ~ 3% boric acid (H2BO3) ku γ-Al2O3 inogona kukurudzira kutendeuka.Kuwedzerwa kwe1% kusvika 2% TiO2 kuAl2O3 kunogona kuderedza zvakanyanya kupisa kwekupisa (kunenge 1600 ° C).Kuwedzerwa kweTiO2, Al2O3, ZiO2, uye V2O5 kuMgO kunokurudzira kukura kwezviyo zvekristobalite uye kunoderedza kupisa kwekupisa kwechigadzirwa.Kuwedzera kweCaO, MgO, Y2O3 uye zvimwe zvinowedzera kuZrO2 mbishi zvinhu zvinogona kuitwa kuita cubic zirconia solid solution iyo yakagadzikana kubva mukamuri tembiricha kusvika 2000 ° C mushure mekupisa kwekushisa kwakanyanya.
(4) Nzira uye midziyo yekusanganisa
Dry kusanganisa nzira
Iyo yakarerekera yakasimba countercurrent mixer inogadzirwa naShandong Konyle ine vhoriyamu ye 0.05 ~ 30m3, inokodzera kusanganisa siyana poda, granules, flakes uye yakaderera-viscosity zvinhu, uye yakashongedzerwa ine mvura yekuwedzera uye yekupfapfaidza mudziyo.
2. Wet kusanganisa nzira
Munzira yakajairika yekusanganiswa kwemvura, zvigadzirwa zvezvinhu zvakasiyana-siyana zvakasvibirira zvinoiswa mumusanganisi wepuraneti wakashongedzerwa nemucheka wekudzivirira wekukuya zvakanaka.Mushure mekunge slurry yagadzirwa, plasticizer uye zvimwe zvinosanganiswa zvinowedzerwa kuti zvigadzirise dhaka density, uye musanganiswa wakanyatso kusanganiswa mune vertical shaft planetary mud mixer, uye granulated uye yakaomeswa mune spray granulation dryer.
Planetary mixer
3. Plastiki yekubatanidza nzira
Kuti ugadzire yakanyatso siyana-siyana yekusanganisa nzira yeyakakosha refractory chigadzirwa chisina chinhu chakakodzera kuumbwa kwepurasitiki kana sludge kugadzira.Munzira iyi, zvinhu zvakasiyana-siyana mbishi, admixtures, plasticizers, uye lubricant nemvura zvinonyatsosanganiswa pamusanganisi wepuraneti, uye zvino zvakasanganiswa uye zvakasanganiswa pamusanganisi wakanyanya-unyanzvi kuti ubvise mabhubhu mumatope.Kuti uvandudze plastiki yevhu, dhaka rinosanganiswa nezvinhu zvakasakara, uye dhaka rinoiswa pasi pechipiri kusanganiswa pamushini wevhu usati waumbwa.Koneile inogadzira yakakwirira-inoshanda uye ine simba musanganiswa sezvinoratidzwa pazasi:
Inoshanda uye ine simba musanganiswa
Countercurrent mixer
4. Semi-yakaoma kusanganisa nzira
Inokodzera kusanganisa nzira nehunyoro hwakaderera.Kushandiswa kwehafu-yakaoma musanganiswa nzira inodiwa kune yakakosha zvigadzirwa zvinoramba izvo zvinogadzirwa nemuchina-zvakagadzirwa ne granular ingredients (yakaomarara, yepakati uye yakanaka matatu-nhanho zvigadzirwa).Izvo zvinongedzo zvinogadzirwa mujecha musanganisi, chigayo chakanyorova, musanganiswa wepuraneti kana musanganisi wekumanikidza.
Nzira yekusanganisa ndeyekutanga kuomesa kusanganisa magiredhi akasiyana-siyana emagranules, wedzera aqueous solution ine binder (inorganic kana organic), uye wowedzera yakasanganiswa yakapfava poda (kusanganisira combustion aid, expansion agent, nezvimwe zvinowedzera).The agent) yakanyatsosanganiswa.Iyo yakawanda yekusanganisa nguva ndeye 20 ~ 30min.Madhaka akasanganiswa anofanira kudzivirira kupatsanurwa kwechikamu uye mvura inofanira kugoverwa zvakaenzana.Kana zvichidikanwa, zvinhu zvedhaka zvinofanira kuvharirwa zvakanaka panguva yekuumba.
Kunyorova kwedhaka rakagadzirwa nekudhinda kunodzorwa pa2.5% kusvika 4%;hunyoro hwechigadzirwa chakaumbwa nedhaka chinodzorwa pa4.5% kusvika 6.5%;uye hunyoro hwechigadzirwa chakaumbwa chinodedera hunodzorwa pa6% kusvika 8%.
(1) Kuitwa kwehunyanzvi kweiyo CMP yakatevedzana yesimba rinoshanda remapuraneti musanganiswa anogadzirwa naKone.
(2) Tekinoroji kuita kweyakanyorova musanganiswa wejecha
5. Nzira yekusanganisa madhaka
Iyo nzira yekusanganisa madhaka ndeyekugadzirwa kweakakosha refractory ceramic zvigadzirwa, kunyanya iyo dhaka slurry yekuumba jekiseni regypsum, kukanda kuumba uye kuumba jekiseni.Nzira yekushanda ndeyekusanganisa zvakasiyana siyana mbishi, zvinosimbisa, zvinomisa maajenti, admixtures uye 30% kusvika 40% yemvura yakachena muguyo rebhora (mixing mill) ine machira asingapfeke, uye kusanganisa nekugaya mushure meimwe nguva. nguva., yakaitwa dhaka slurry yekuumba.Mukugadzira dhaka, zvinodikanwa kudzora density uye pH yedhaka zvinoenderana nehunhu hwezvinhu uye zvinodiwa pakuzvikanda kwedhaka.
Countercurrent ine simba musanganiswa
Chishandiso chikuru chinoshandiswa muhuyo hwekusanganisa dhaka chigayo chebhora, chigayo chemhepo, kubvisa simbi yakanyorova, pombi yematope, vacuum deaerator, nezvimwe zvakadaro.
6. Kupisa kusanganisa nzira
Parafini neresin-based binders zvinhu zvakasimba (kana viscous) patembiricha yakajairika, uye hazvigone kusanganiswa pakudziya kwekamuri, uye zvinofanirwa kupiswa nekusanganiswa.
Parafini inoshandiswa sebhainda kana uchishandisa inopisa kufa yekukanda maitiro.Nekuda kwekunyungudika kweparafini wakisi i60~80 °C, wakisi yeparafini inodziya kusvika pamusoro pe100 °C mukusanganiswa uye ine mvura yakanaka.Zvadaro poda yakasvibirira yakasvibirira inowedzerwa kune parafini yemvura, uye mushure mekusanganiswa zvakakwana uye kusanganiswa, zvinhu zvakagadzirirwa.Keke rewakisi rinoumbwa nekukandwa kwemafuta.
Iyo huru yekusanganisa midziyo yekudziya musanganiswa ndeye inopisa agitator.
Nguva yekutumira: Oct-20-2018