Indlela yokuLungiselela yoMmandla oPhezulu weGraphite yeSilicon yeCarbide kwiCrucible yokuNyibilikiswa kwesinyithi

Indlela yokulungiselela amandla aphezului-graphite silicon carbide crucibleukunyibilikiswa kwesinyithi kubandakanya la manyathelo alandelayo: 1) ukulungiswa kwezinto ezikrwada; 2) ukuxuba okuphambili; 3) ukomiswa kwezinto; 4) ukutyumza kunye nokucoca; 5) ukulungiswa kwezinto zesibini; 6) ukuxuba okwesibini; 7) ukucinezela kunye nokubumba; 8) ukusika kunye nokusika; 9) ukomisa; 10) ukukhenkceza; 11) ukudubula okuphambili; 12) ukukhulelwa; 13) ukudubula okwesibini; 14) ukutyabeka; 15) imveliso egqityiweyo. I-crucible eveliswa kusetyenziswa le fomula entsha kunye nenkqubo yokuvelisa inokumelana nobushushu obuphezulu kunye nokumelana nokubola. Umyinge wobomi be-crucible ufikelela kwiinyanga ezi-7-8, kunye ne-uniform kunye ne-defect-free structure yangaphakathi, amandla aphezulu, iindonga ezincinci, kunye ne-thermal conductivity. Ukongeza, umaleko weglaze kunye nokwaleka kumphezulu, kunye neenkqubo ezininzi zokomisa kunye nokudubula, ziphucula kakhulu ukuxhathisa kwemveliso kunye nokunciphisa ukusetyenziswa kwamandla malunga ne-30%, kunye nenqanaba eliphezulu le-vitrification.

Le ndlela ibandakanya intsimi ye-non-ferrous metallurgy casting, ngokukodwa indlela yokulungiselela i-graphite silicon carbide crucible crucible ephezulu yokunyibilikisa isinyithi.

[Itekhnoloji yangasemva] Iikhrayibhili ezikhethekileyo ze-graphite silicon carbide zisetyenziswa ikakhulu kwi-non-ferrous metal casting and forging process, kunye nokubuyiselwa kunye nokusulungekiswa kweentsimbi ezixabisekileyo, kunye nokuveliswa kobushushu obuphezulu kunye nemveliso enganyangekiyo efunekayo kwiiplastiki, iiseramikhi, iglasi, isamente, irabha, kunye nokuveliswa kwamayeza, kunye nezikhongozeli ezikwaziyo ukumelana nomhlwa kwishishini lepetrochemical.

Imiqulu esele ikho yegraphite silicon carbide crucible crucible kunye neenkqubo zemveliso zivelisa iimveliso ezinomndilili wobomi beentsuku ezingama-55, omfutshane kakhulu. Iindleko zokusebenzisa kunye nemveliso ziyaqhubeka zikhula, kwaye umthamo wenkunkuma owenziweyo nawo uphezulu. Ke ngoko, ukuphanda uhlobo olutsha lwe-graphite silicon carbide crucible kunye nenkqubo yayo yokuvelisa yingxaki engxamisekileyo yokusombulula, njengoko ezi zityholo zinezicelo ezibalulekileyo kwiinkalo ezahlukeneyo zeekhemikhali zoshishino.

[0004] Ukujongana nezi ngxaki zingentla, indlela yokulungiselela i-graphite silicon carbide crucibles crucibles ye-metal smelting inikezelwa. Iimveliso ezilungiselelwe ngokwale ndlela zichasene nokushisa okuphezulu kunye nokugqwala, zinobomi obude benkonzo, kwaye zifezekise ukugcinwa kwamandla, ukunciphisa ukukhutshwa, ukukhuselwa kwendalo, kunye nesantya esiphezulu sokubuyisela inkunkuma ngexesha lemveliso, ukwandisa ukujikeleza kunye nokusetyenziswa kwezibonelelo.

Indlela yokulungiselela i-graphite silicon carbide crucibles ephezulu yokunyibilikisa isinyithi iquka la manyathelo alandelayo:

1. Ukulungiswa kwezinto eziluhlaza: I-silicon carbide, i-graphite, udongwe, kunye ne-silicon yensimbi zifakwe kwii-ingredient hoppers zazo nge-crane, kunye neprogram ye-PLC ilawula ngokuzenzekelayo ukukhutshwa kunye nokulinganisa kwempahla nganye ngokomlinganiselo ofunekayo. Iivalve ze-pneumatic zilawula ukukhutshwa, kwaye ubuncinci i-sensors zokulinganisa ezimbini zibekwe emazantsi kwi-hopper yesithako ngasinye. Emva kokulinganisa, izixhobo zifakwe kumatshini wokuxuba ngenqwelo ehambayo ehambayo. Ukongezwa kokuqala kwe-silicon carbide yi-50% yemali yayo yonke.
2. Ukuxuba okwesibini: Emva kokuba izinto eziluhlaza zixutywe kumatshini wokuxuba, zikhutshwa kwi-buffer hopper, kwaye izinto ezikwi-buffer hopper ziphakanyiselwe kwi-hopper yokuxuba nge-elevator yebhakethi yokuxuba okwesibini. Isixhobo sokususa intsimbi sisetwa kwindawo yokukhuphela kwi-elevator ye-emele, kwaye isixhobo sokongeza amanzi sibekwe phezu kwe-hopper yokuxuba ukongeza amanzi ngelixa ushukumisa. Umlinganiselo wokongezwa kwamanzi yi-10L / min.
3. Ukomiswa kwezinto: Izinto ezimanzi emva kokuxuba zomiswe kwisixhobo sokumisa kwiqondo lokushisa le-120-150 ° C ukususa umswakama. Emva kokumisa ngokupheleleyo, izinto eziphathekayo zithathwa ukupholisa kwendalo.
4. Ukutyumza kunye nokucoca: Izinto ezomileyo ezixutywe zingena kwisixhobo sokutyumza kunye nokuhlola ukutyunyuzwa kwangaphambili, emva koko singene kwi-counterattack crusher ukwenzela ukutyunyuzwa ngakumbi, kwaye kwangaxeshanye udlula kwisixhobo sokuhlola i-60-mesh. Amasuntswana amakhulu kuno-0.25mm abuyiselwa ukuze asetyenziswe kwakhona ukuze aphinde atyunyuzwe, atyunyuzwe kwaye ahlolwe, ngelixa amasuntswana amancinci kuno-0.25mm athunyelwa kwi-hopper.
5. Ukulungiswa kwezinto zesibini: Izinto eziphathekayo kwi-hopper yokukhupha zihanjiswa zibuyiselwe kumatshini wokudibanisa ukulungiselela ukulungiswa kwesibini. I-50% eseleyo ye-silicon carbide yongezwa ngexesha lokulungiselela okwesibini. Izinto eziphathekayo emva kokulungiswa kwesibini zithunyelwa kumatshini wokuxuba ukuxuba kwakhona.
6. Ukuxuba okwesibini: Ngexesha lenkqubo yokuxuba yesibini, isisombululo esikhethekileyo esine-viscosity songezwa kwi-hopper yokuxuba ngesisombululo esikhethekileyo sokongeza isixhobo esinobunzima obuthile. Isisombululo esikhethekileyo silinganiswe ngebhakethi yokulinganisa kwaye yongezwa kwi-hopper yokuxuba.
7. Ukucofa kunye nokubumba: Izixhobo emva kokuxutywa kwesibini zithunyelwa kwi-isostatic pressing hopper. Emva kokulayisha, ukunyanzeliswa, ukucoca, kunye nokucoca kwi-mold, izixhobo zicinezeleka kumatshini wokucinezela isostatic.
8. Ukusika kunye nokusika: Oku kubandakanya ukusika ubude kunye nokusika i-crucible burrs. Ukusika kwenziwa ngumatshini wokusika ukusika i-crucible ukuya kubude obufunekayo, kwaye i-burrs emva kokusika iyancipha.
9. Ukomisa: I-crucible, emva kokunqunyulwa kunye nokunqunyulwa kwinqanaba (8), ithunyelwa kwi-oven yokumisa ukuze yomiswe, kunye neqondo lokushisa elingu-120-150 ° C. Emva kokumisa, igcinwa ishushu kwiiyure ezingama-1-2. I-oven yokomisa ixhotyiswe ngenkqubo yokulungelelanisa i-air duct, equkethe iipleyiti ezininzi ze-aluminium ezihlengahlengiswayo. Ezi pleyiti ze-aluminiyam ezilungelelaniswayo zicwangciswe kumacala amabini angaphakathi kwi-oven yokomisa, kunye nombhobho womoya phakathi kweepleyiti ezimbini ze-aluminiyam. Umsantsa phakathi kweepleyiti ezimbini ze-aluminiyam zilungelelaniswe ukulawula umbhobho womoya.
10. Ukukhazimla: Ukukhenkceza kwenziwa ngokuxuba izinto ezimenyezelayo namanzi, kuquka i-bentonite, udongwe olwenziwayo, umgubo weglasi, umgubo wefeldspar, kunye nesodium carboxymethyl cellulose. I-glaze isetyenziswe ngesandla ngebrashi ngexesha lokukhanya.
11. Ukudubula okusisiseko: I-crucible ene-glaze esetyenzisiweyo igxothwa kanye kwi-oven iiyure ezingama-28-30. Ukuphucula ukusebenza kakuhle kokudubula, ibhedi ye-labyrinth ye-kiln enefuthe lokutywinwa kunye nokuvalwa komoya kubekwe phantsi kwe-oven. Ibhedi ye-kiln inomaleko ongezantsi wekotoni yokutywina, kwaye ngaphezulu komqhaphu wokutywina, kukho umaleko wesitena sokufakelwa, okwenza ibhedi ye-labyrinth.
12. I-Impregnation: I-crucible egxothiweyo ifakwe kwitanki yokufakela i-vacuum kunye nokufakwa koxinzelelo. Isisombululo sokukhulelwa sithuthelwa kwi-tank yokukhulelwa ngokusebenzisa umbhobho ovaliweyo, kwaye ixesha lokukhulelwa liyimizuzu engama-45-60.
13. Ukudubula okwesibini: I-crucible edibeneyo ifakwe kwi-kiln yokudubula okwesibini kwiiyure ze-2.
14. I-Coating: I-crucible emva kokudubula kwesibini ifakwe ngepeyinti ye-acrylic resin esekelwe emanzini phezu komhlaba.
15. Imveliso egqityiweyo: Emva kokugqitywa kokugqitywa, umphezulu womile, kwaye emva kokumisa, i-crucible ihlanganiswe kwaye igcinwe.