Isanti yeMullite
Ulwazi lweMveliso
Isanti eninzisisixhobo sokuchasana ne-aluminium silicate, esisetyenziswa ngokubanzi kwinkqubo yokubumba ngocoselelo lwentsimbi engagqwaliyo. Ukuchasana ne-aluminiyam kumalunga ne-1750 degrees. Okukhona umxholo we-aluminiyam uphezulu kwisanti ye-mullite, kokukhona umxholo wesinyithi uphantsi, kwaye okukhona uthuli luncinci, kokukhona umgangatho wemveliso yesanti ye-mullite ungcono. Isanti ye-mullite yenziwa ngokusila okushushu okuphezulu kwe-kaolin.
Iimbonakalo:
1. Iqondo lokunyibilika eliphezulu, ngokubanzi phakathi kwe-1750 kunye ne-1860°C.
2. Uzinzo oluhle lobushushu obuphezulu.
3. I-coefficient yokwandisa ubushushu ephantsi.
4. Uzinzo oluphezulu lweekhemikhali.
5. Ukusasazwa kobungakanani beesuntswana okufanelekileyo kuvumela ukukhethwa kunye nokulungiswa ngokusekelwe kwiinkqubo ezahlukeneyo zokuphosa kunye neemfuno zokuphosa.
Isalathiso seMveliso
| Inkcazo | Ibanga leSidlo sangokuhlwa | Ibanga loku-1 | Ibanga lesi-2 |
| I-Al2O3 | 44%-45% | 43%-45% | 43%-50% |
| I-SiO2 | 50%-53% | 50%-54% | 47%-53% |
| I-Fe2O3 | ≤1.0% | ≤1.5% | ≤2.1% |
| K2O+Na2O | ≤0.5% | ≤0.6% | ≤0.8% |
| I-CaO | ≤0.4% | ≤0.5% | ≤0.5% |
| I-TiO2 | ≤0.3% | ≤0.7% | ≤0.3% |
| I-Xaustic Soda | ≤0.5% | ≤0.5% | ≤0.7% |
| Unizi lolwapho kuyiwa khona | ≥2.5g/cm3 | ≥2.5g/cm3 | ≥2.45g/cm3 |
Izicelo
Eyona nto iphambili ekusetyenzisweni ngokuchanekileyo kukwenza iigobolondo zesikhunta (inkqubo yokugquma ipateni yesikhunta ngeengqimba ezininzi zezinto ezichaseneyo ukuze kwenziwe igobolondo langaphandle. Emva kokuba ipateni yesikhunta inyibilikile, kwakheka umngxuma wokugalela isinyithi esinyibilikisiweyo). Isanti ye-mullite isetyenziswa kakhulu njenge-refractory aggregate kwigobolondo lesikhunta kwaye isetyenziswa kwiingqimba ezahlukeneyo zegobolondo, ngakumbi ngolu hlobo lulandelayo:
1. Igobolondo Lomphezulu (Limisela ngokuthe ngqo Umgangatho Womphezulu Wesixokelelwano)
Umsebenzi:Umaleko womphezulu udibana ngqo ne-casting kwaye kufuneka uqinisekise ukuba umphezulu ugqityiwe kakuhle (ukuphepha ukuba rhabaxa kunye nokuqhekeka kwemingxuma) ngelixa umelana nokuchaphazeleka kokuqala kwesinyithi esinyibilikisiweyo.
2. Igobolondo Langasemva (Linika Amandla Nokuphefumla Okupheleleyo)
Umsebenzi:Iqokobhe elingasemva liyisakhiwo esineengqimba ezininzi ngaphandle komgangatho womphezulu. Lixhasa amandla apheleleyo eqokobhe lesikhunta (lithintela ukuguquka okanye ukudilika ngexesha lokugalela) ngelixa liqinisekisa ukuphefumla (ukukhupha iigesi emngxunyeni kunye nokuthintela ukubola kwi-casting).
3. Izicelo ezikhethekileyo zeeCastings ezifunwa kakhulu
Ii-alloy castings ezishushu kakhulu:njengeebhleyidi ze-turbine ze-injini yeenqwelo-moya (amaqondo obushushu aphuma kwi-1500-1600°C), zifuna iqokobhe le-mold ukuba likwazi ukumelana namaqondo obushushu agqithisileyo. Ukuchasana okuphezulu kwe-Mullite sand kunokuthatha indawo yesanti ye-zircon ebiza kakhulu (indawo yokunyibilika engama-2550°C, kodwa ibiza kakhulu), ukuhlangabezana neemfuno zokumelana namaqondo obushushu aphezulu ngelixa kunciphisa iindleko.
Kwizinto ezisetyenziswayo xa kusenziwa i-reactive metal castings:njengee-aluminium alloys kunye nee-magnesium alloys (ezisabela kakhulu kwaye zisabela ngokulula kwi-SiO₂ kwisanti ye-quartz ukuze zenze ii-inclusions), ukuzinza kweekhemikhali zesanti ye-mullite kunokunciphisa i-reactivity kwaye kuthintele ukwakheka "kwee-oxidation inclusions" kwi-casting.
Kwizinto ezinkulu ezichanekileyo:njengee-housings ze-gearbox ze-wind turbine (ezinobunzima beetoni ezininzi), iqokobhe le-mold lifuna amandla aphezulu olwakhiwo. Umaleko ongasemva owenziwe yisanti ye-mullite kunye ne-binder unamandla aphezulu, nto leyo enciphisa umngcipheko wokwanda nokuwa kwe-mold.
4. Ukudibana nezinye izinto ezivuselela i-Refractory
Kwimveliso yokwenyani, isanti ye-mullite idla ngokusetyenziswa kunye nezinye izinto ukuphucula ukusebenza kwegobolondo le-mold:
Ukudibanisa nesanti ye-zircon:Isanti ye-zircon isetyenziswa njengomaleko womphezulu (ukuqinisekisa ukugqitywa komphezulu okuphezulu) kunye nesanti ye-mullite njengomaleko womva (ukunciphisa iindleko). Oku kufanelekile kwii-castings ezineemfuno eziphezulu kakhulu zomphezulu, njengeendawo zeenqwelo moya.
Idityaniswe nesanti ye-quartz:Kwizinto ezisetyenziswa ekuphoseni ezineemfuno zobushushu obuphantsi (ezifana ne-copper alloy, i-melting point 1083℃), ingathatha indawo yesanti ye-quartz kwaye isebenzise i-mullite sand expansion ephantsi ukunciphisa imifantu yeqokobhe.
| Inkqubo Yesalathiso Sokwenza Iigobolondo Ngokucokisekileyo | ||
| I-slurry yomphezulu ngokubanzi, umgubo we-zirconium | I-mesh engama-325 + i-silica sol | Isanti: isanti ye-zirconium ene-mesh eyi-120 |
| Uludaka olusemqolo | I-mesh engama-325+i-silica sol+umgubo we-mullite 200 mesh | Isanti: isanti ye-mullite ene-mesh engama-30-60 |
| Umaleko wokuqinisa | Umgubo weMullite 200 mesh + i-silica sol | Isanti: isanti ye-mullite ene-mesh eyi-16-30 |
| Ukutywina udaka | Umgubo weMullite 200 mesh + i-silica sol | _ |
Iprofayile yekhampani
I-Shandong Robert New Material Co., Ltd.ikwiSixeko saseZibo, kwiPhondo laseShandong, eTshayina, elisisiseko semveliso yezinto ezinganyangekiyo. Silishishini lanamhlanje elidibanisa uphando nophuhliso, imveliso, ukuthengisa, uyilo lwe-oven kunye nolwakhiwo, iteknoloji, kunye nezixhobo ezinganyangekiyo ezithunyelwa kwamanye amazwe. Sinezixhobo ezipheleleyo, iteknoloji ephucukileyo, amandla obuchwephesha aqinileyo, umgangatho wemveliso ogqwesileyo, kunye nodumo oluhle. Umzi-mveliso wethu ugubungela iihektare ezingaphezu kwama-200 kwaye imveliso yonyaka yezixhobo ezinganyangekiyo ezimile imalunga neetoni ezingama-30000 kwaye izinto ezinganyangekiyo ezimile ziitoni ezili-12000.
Iimveliso zethu eziphambili zezinto ezichasayo ziquka: izinto ezichasayo ze-alkaline; izinto ezichasayo ze-aluminium silicon; izinto ezichasayo ezingabunjwanga; izinto ezichasayo ze-thermal insulation; izixhobo ezikhethekileyo ezichasayo; izixhobo ezichasayo ezisebenzayo kwiinkqubo zokuphosa eziqhubekayo.
Imibuzo ebuzwa qho
Ngaba ufuna uncedo? Qiniseka ukuba undwendwela iiforam zethu zenkxaso ukuze ufumane iimpendulo kwimibuzo yakho!
Singumvelisi wokwenyani, umzi-mveliso wethu ugxile ekuveliseni izinto ezichasene nendalo kangangeminyaka engaphezu kwama-30. Sithembisa ukubonelela ngexabiso elifanelekileyo, eyona nkonzo ingcono ngaphambi kokuthengisa nasemva kokuthengisa.
Kwinkqubo nganye yemveliso, i-RBT inenkqubo epheleleyo ye-QC yokwakheka kweekhemikhali kunye neempawu zomzimba. Kwaye siza kuvavanya iimpahla, kwaye isatifikethi somgangatho siya kuthunyelwa kunye neempahla. Ukuba uneemfuno ezizodwa, siza kuzama konke okusemandleni ethu ukuzilungiselela.
Ngokuxhomekeke kubungakanani, ixesha lethu lokuhambisa lahlukile. Kodwa sithembisa ukuthumela ngokukhawuleza kangangoko kunokwenzeka ngomgangatho oqinisekisiweyo.
Kakade ke, sinikezela ngeesampuli zasimahla.
Ewe, ewe, wamkelekile ukutyelela inkampani ye-RBT kunye neemveliso zethu.
Akukho mda, singakunika ingcebiso nesisombululo esifanelekileyo ngokwemeko yakho.
Besisenza izinto ezirhabaxa kangangeminyaka engaphezu kwama-30, sinenkxaso yobugcisa enamandla kunye namava amaninzi, singanceda abathengi ukuba bayile ii-kiln ezahlukeneyo kwaye banikezele ngenkonzo enye.
