Kugadzirira Nzira Yepamusoro-Simba Graphite Silicon Carbide Crucible yeSimbi Kunyunguduka

Nzira yekugadzirira yepamusoro-simbagraphite silicon carbide cruciblenokuda kwekunyunguduka kwesimbi kunosanganisira matanho anotevera: 1) kugadzirwa kwezvinhu zvakasvibiswa; 2) kusanganisa kwekutanga; 3) kuomeswa kwezvinhu; 4) kupwanya uye kuongorora; 5) kugadzirira zvinhu zvechipiri; 6) kusanganisa kwechipiri; 7) kudzvanya nekuumba; 8) kucheka nekucheka; 9) kuomesa; 10) kupenya; 11) kupfurwa kwekutanga; 12) kupiwa pamuviri; 13) kupfurwa kwechipiri; 14) kupfeka; 15) chigadzirwa chapera. Iyo crucible inogadzirwa uchishandisa iyi fomula nyowani uye maitiro ekugadzira ane yakasimba-yepamusoro-tembiricha kuramba uye nekuonda kuramba. Ivhareji yehupenyu hwe crucible inosvika mwedzi 7-8, ine yunifomu uye isina kukanganisa-isina chimiro chemukati, simba rakakwirira, masvingo akaonda, uye kunaka kwekushisa kwekushisa. Pamusoro pezvo, iyo glaze layer uye yekupotera pamusoro, pamwe nekuomeswa kwakawanda uye kupfutidza maitiro, zvakanyanya kunatsiridza chigadzirwa kuramba kwecorrosion uye kuderedza kushandiswa kwesimba neanosvika makumi matatu muzana, ine yakakwira dhigirii yevitrification.

Iyi nzira inosanganisira munda we-non-ferrous metallurgy casting, kunyanya nzira yekugadzirira ye-high-simba graphite silicon carbide crucible yekunyungudutsa kwesimbi.

[Background Tekinoroji] Special graphite silicon carbide crucibles inonyanya kushandiswa mune isiri-ferrous simbi yekukandira uye yekugadzira maitiro, pamwe nekudzoreredza nekunatswa kwesimbi dzinokosha, uye kugadzirwa kwepamusoro-tembiricha uye inodzivirira corrosion zvigadzirwa zvinodiwa mapurasitiki, Ceramics, girazi, simende, rabha, uye kugadzira mishonga, pamwe nemidziyo isingadziviriri inodiwa muindasitiri yepetrochemical.

Iripo yakakosha graphite silicon carbide crucible formulations uye maitiro ekugadzira anogadzira zvigadzirwa zvine avhareji yehupenyu hwemazuva makumi mashanu neshanu, ipfupi. Iko kushandiswa uye mari yekugadzira inoramba ichiwedzera, uye huwandu hwemarara hunogadzirwa hwakakwirawo. Naizvozvo, kutsvagisa mhando nyowani yakakosha graphite silicon carbide crucible uye maitiro ayo ekugadzira idambudziko rekukurumidzira kugadzirisa, sezvo macrucibles aya aine zvakakosha mashandisirwo mumaindasitiri akasiyana emakemikari minda.

[0004] Kugadzirisa matambudziko ari pamusoro apa, nzira yekugadzirira yakakwirira-simba graphite silicon carbide crucibles yekunyungudutsa simbi inopihwa. Zvigadzirwa zvakagadzirirwa zvinoenderana neiyi nzira zvinoshingirira kune yakanyanya tembiricha uye corrosion, zvine hupenyu hurefu hwesevhisi, uye kuwana kuchengetedza kwesimba, kudzikisa emission, kuchengetedza kwezvakatipoteredza, uye yakanyanya kudzoreredza marara panguva yekugadzira, kuwedzera kutenderera uye kushandiswa kwezviwanikwa.

Iyo nzira yekugadzirira yepamusoro-simba graphite silicon carbide crucibles yekunyungudutsa simbi inosanganisira anotevera matanho:

1. Kugadzirira kwezvinhu zvakasvibirira: Silicon carbide, graphite, ivhu, uye simbi silicon inoiswa mune yavo yeingredient hoppers necrane, uye chirongwa chePLC chinodzora otomatiki kubuda uye kuyerwa kwechinhu chimwe nechimwe zvinoenderana nechiyero chinodiwa. Pneumatic mavharuvhu anodzora kubuda, uye angangoita maviri ekuyera sensors akaiswa pazasi pechinhu chimwe nechimwe hopper. Mushure mekuyera, zvigadzirwa zvinoiswa mumushini wekusanganisa nengoro inofambiswa. Kuwedzerwa kwekutanga kwesilicon carbide ndeye 50% yehuwandu hwayo.
2. Sekondari kusanganisa: Mushure mekuti mbishi zvinhu zvasanganiswa mumushini wekusanganisa, zvinoburitswa mubuffer hopper, uye zvinhu zviri mubuffer hopper zvinosimudzwa kune yekusanganisa hopper nebucket lift yekusanganisa yechipiri. Chishandiso chekubvisa simbi chinogadzikwa panobudisira bhaketi rinosimudza, uye mudziyo wekuwedzera mvura unoiswa pamusoro pehopi yekusanganisa kuti uwedzere mvura uchikurunga. Mwero wekuwedzera mvura ndeye 10L/min.
3. Kuomeswa kwezvinhu: Zvinhu zvakanyorova mushure mekusanganiswa zvakaomeswa mumudziyo wekuomesera pakupisa kwe120-150 ° C kubvisa unyoro. Mushure mekuoma zvachose, zvinhu zvinotorwa kunze kwekutonhora kwepanyama.
4. Kupwanya uye kuongorora: Iyo yakaomeswa yakaomeswa zvinhu inopinda mukupwanya uye yekuongorora midziyo yekupwanya isati yapwanya, yobva yapinda mukurwisa-crusher kuti iwedzere kupwanya, uye panguva imwe chete ichipfuura nepakati pe60-mesh yekuongorora michina. Zvimedu zvakakura kupfuura 0.25mm zvinodzoserwa kudzokororwa kuti zviwedzere kudzvanya, kupwanya, uye kuongorora, nepo zvidiki pane 0.25mm zvinotumirwa kune hopper.
5. Kugadzirira kweSecondary material: Zvishandiso zviri mu discharge hopper zvinotakurwa zvichidzoserwa kumushini webatching kugadzirira kwechipiri. Iyo yakasara 50% yesilicon carbide inowedzerwa panguva yekugadzirira kwechipiri. Zvishandiso mushure mekugadzirira kwechipiri zvinotumirwa kumushini wekusanganisa kuti udzoke zvakare.
6. Sekondari kusanganisa: Munguva yechipiri yekusanganisa maitiro, yakakosha mhinduro ine viscosity inowedzerwa kune yekusanganisa hopper kuburikidza neakakosha mhinduro inowedzera mudziyo ine chaiyo giravhiti. Mushonga unokosha unoyerwa nebhakiti rinoyera uye rinowedzerwa kune kusanganisa hopper.
7. Kudzvanya uye kuumba: Zvishandiso mushure mekusanganiswa kwechipiri zvinotumirwa kune isostatic yekutsikirira muchina hopper. Mushure mekurodha, compaction, vacuuming, uye kuchenesa mu mold, zvinhu zvinotsikirirwa mumuchina wekutsikisa isostatic.
8. Kucheka nekuchekerera: Izvi zvinosanganisira kucheka kureba uye kucheka crucible burrs. Kucheka kunoitwa nemuchina wekucheka kuti ucheke crucible kusvika paurefu hunodiwa, uye mabhura mushure mekucheka anogadziriswa.
9. Kuomesa: Iyo crucible, mushure mekuchekwa uye kuchekwa mudanho (8), inotumirwa kuhovheni yekuomeswa kuti iomeswe, ine tembiricha yekuomesa ye120-150 ° C. Mushure mekuoma, inochengetwa ichidziya kwemaawa 1-2. Ovheni yekuomeswa yakashongedzerwa neair duct adjustment system, iyo ine akati wandei anogadziriswa aluminium mahwendefa. Aya mahwendefa earuminiyamu anogadziriswa akarongwa pamativi maviri emukati ehovhoni yekuomesa, aine dhizaini remhepo pakati pemahwendefa maviri earuminiyamu. Mukaha uripo pakati pemapureti maviri earuminiyamu inogadziriswa kuti igadzirise mhepo duct.
10. Kupenya: Kupenya kunogadzirwa nekusanganisa zvinhu zvinopenya nemvura, zvinosanganisira bentonite, ivhu refractory, upfu hwegirazi, feldspar hupfu, uye sodium carboxymethyl cellulose. Iyo glaze inoshandiswa nemaoko nebhurashi panguva yekupenya.
11. Kupfura kwekutanga: Iyo crucible neyakaiswa glaze inodzingwa kamwe muchoto kwemaawa 28-30. Kuti uvandudze kushanda zvakanaka kwekupfuta, mubhedha welabyrinth kiln ine chisimbiso chekuita uye kuvharika kwemhepo kunogadzika pasi pechoto. Mubhedha wehovhoni une pasi pechisimbiso chekotoni, uye pamusoro pedonje rekuvhara, pane dhiraivha yezvidhinha zvekudzivirira, zvichiita mubhedha welabyrinth.
12. Impregnation: Iyo crucible yakadzingwa inoiswa mune yekumisikidza tangi ye vacuum uye kumanikidza kupinza. Mhinduro yekudzivirira inotakurwa kune tangi yekudzivirira kuburikidza nepombi yakavharwa, uye nguva yekudzivirira ndeye 45-60 maminetsi.
13. Sekondari kupfurwa: Iyo crucible yakaiswa mukati inoiswa muchoto yekupfurwa kwechipiri kwemaawa maviri.
14. Coating: Iyo crucible mushure mekupfurwa kwechipiri yakaputirwa nemvura-based acrylic resin pendi pamusoro.
15. Yakapedzwa chigadzirwa: Mushure mekuputirwa kwapera, nzvimbo yacho yakaomeswa, uye mushure mekuoma, crucible inoputirwa uye kuchengetwa.