Enye yezona zishushu kakhulu kwiPrecision Casting Clay, iSilicon Sol Investment Casting Sand Mullite Sand 16-30mesh, 200mesh
Isitshixo sempumelelo yethu "Iimveliso ezilungileyo Umgangatho olungileyo, Ixabiso elifanelekileyo kunye neNkonzo esebenzayo"Isanti kunye neSanti yeMullite, Ubuchwephesha, Ukuzinikela kusoloko kubalulekile kumsebenzi wethu. Besisoloko sihambelana nokusebenzela abathengi, sidala iinjongo zolawulo lwexabiso kwaye sinamathela kwingcinga yokunyaniseka, ukuzinikela, kunye nolawulo oluqhubekayo.
Isanti eninziluhlobo lwezixhobo ezichasene ne-aluminosilicate ezisetyenziswa kakhulu kwishishini le-foundry.
Ulwakhiwo oluPhambili lweeKhemikhali:
Iinxalenye eziphambili zeekhemikhali zesanti ye-mullite yiAluminium Oxide (Al₂O₃) kunye neSilicon Dioxide (SiO₂). Uluhlu oluqhelekileyo lwekhemikhali zezi: 42% ≤ Al₂O₃ ≤ 47% kunye ne-51% ≤ SiO₂ ≤ 53%. Ikwanazo nezixa ezincinci zeIron Oxide (Fe₂O₃), iAlkali Metal Oxides (Na₂O+K₂O), kunye nezinye izinto ezincinci.
Inkqubo yeMveliso:
Isanti ye-mullite idla ngokuveliswa kusetyenziswa iiminerali ezityebileyo kwi-aluminosilicate, ezifana ne-kaolin, udongwe oluqinileyo, okanye i-muscovite. Le nkqubo ibandakanya ukutyumza izinto ezikrwada, ukuzixuba nezongezo, nokuzicinezela zibe yimo. Ezi ntlobo emva koko zifakwa kwi-calcined kwisithando sobushushu obuphezulu kumaqondo obushushu aphakathi kwe-1300°C kunye ne-1550°C. Emva kwe-calcination, imveliso iyatyumzwa, ihlolwe, ihlukaniswe ngemagnethi ukuze kususwe isinyithi, kunye nezinye iinkqubo zokufumana iimveliso zesanti ye-mullite yobukhulu obahlukeneyo bezinto ezincinci.
Iinkcukacha zobungakanani beParticle:
Isanti ye-mullite ifumaneka kwiindidi ezahlukeneyo zobukhulu beesuntswana. Umthombo wethu ophambili uquka: i-8-16 mesh, i-16-30 mesh, i-30-60 mesh, i-60-80 mesh, kunye ne-80-120 mesh. Ukongeza, sinikezela ngemigangatho emihle eyaziwa ngokuba yi-mullite powder, efana ne-200 mesh kunye ne-300 mesh.
Iimpawu Zokusebenza:
Ukurhawuzelelwa okuphezulu:Njengoko irhabaxa malunga ne-1750°C, iyakwazi ukumelana namaqondo obushushu aphezulu esinyithi esinyibilikisiweyo ngexesha lenkqubo yokubumba, ikhusela iqokobhe lesikhunta ekonakalisweni.
Uzinzo oluhle kakhulu lobushushu:Isanti ye-Mullite igcina uzinzo xa itshintsha ubushushu. Ayinakumelana nokwanda okanye ukucutheka kobushushu, nto leyo eqinisekisa ukuchaneka kwezinto ezifakwayo.
Ipropati ye-Easy Shakeout:Emva kokuphosa, isanti ye-mullite ingasuswa ngokulula (ishukunyiswa) kwii-castings. Oku kunciphisa isidingo somsebenzi wokugqiba olandelayo kwaye kuphucula ukusebenza kakuhle kwemveliso.
Umgangatho ophezulu wokuphosa:Ukusebenzisa isanti ye-mullite njengezinto zeqokobhe kubangela ukuba kusetyenziswe izinto ezibunjiweyo ezinomphezulu ogudileyo. Kunciphisa iziphene zokubumba ezifana nemingxuma yesanti kunye nemingxuma yokuvuthela, ngaloo ndlela kuphucula umgangatho wezinto ezibunjiweyo.
| 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 |
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 | _ |
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 isiqinisekiso 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.
