Ukubuka konke i-graphite ecashile

Ukucubungula
I-graphite ebekiwekwenziwa kusuka kugrafu ye-flake yemvelo njengento esetshenziswayo eluhlaza, futhi icutshungulwa ngodaka lwepulasitiki noma ikhabhoni njenge-binder. Inezimpawu zokumelana okuphezulu okushisa, ukuvumelanisa okuqinile okushisayo, ukumelana kahle nokugqwala, kanye nempilo yenkonzo ende. Ngesikhathi sokusetshenziswa okushisa kakhulu, i-coefficient yokunwetshwa kwe-thermal incane, futhi inokusebenza okulinganiselwe kokuqina kokupholisa okusheshayo nokushisa. Inokumelana okuqinile kokugqwala kwezixazululo ze-acidic ne-alkali, ukuqina okuhle kwamakhemikhali, futhi akubandakanyi kunoma yikuphi ukusabela kwamakhemikhali ngesikhathi senqubo yokuncibilika. Udonga lwangaphakathi lwegrafu lubushelelezi, futhi uketshezi lwensimbi ebilisiwe akulula ukuwavuza futhi unamathele odongeni olungaphakathi lwe-ebekiwe, ukwenza uketshezi lwensimbi lube nokugeleza okuhle kanye nekhono lokuphonsa. Ngenxa yezici ezingenhla ezingenhla, ama-graphite ama-grapIble asetshenziswa kabanzi ekunyisweni kwensimbi yensimbi ye-alloy kanye nezinsimbi ezingezona ezi-forrous kanye nama-alloys awo.

Ukuthayipha
Ama-graphite ama-brucibles asetshenziselwa ikakhulukazi ukuncibilika kwezinto zensimbi, ezihlukaniswe ngezinhlobo ezimbili: i-graphite yemvelo kanye ne-graphipte yokufakelwa.
1) I-Graphite yemvelo
Kwenziwa ikakhulukazi i-flake yemvelo ye-flake njengezinto eziphambili ezingavuthiwe, ngokufakwa kobumba nezinye izinto zokuphindisela ezivumayo. Ngokuvamile ibizwa nge-graphible yobumba ebekiwe, ngenkathi uthayipha i-carbon general enobuthi nge-asphalt njenge-binder. Kwenziwa kuphela ngamabutho e-clay futhi abizwa ngokuthi yi-Hui Clay Binder Typerable. Owangaphambili unamandla aphakeme nokuphikiswa okushisayo okushisayo. It is used for the melting of steel, copper, copper alloys, and other non-ferrous metals, with various sizes and melting capacities ranging from 250g to 500kg.
Lolu hlobo lwe-Earcible lufaka izesekeli ezifana nesipuni se-skimming, isivalo, indandatho ehlanganyelwe, ukwesekwa okunentuluzwe, nenduku evusa amadlingozi.
2) i-graphiolial graphite
Ama-graphite wemvelo ama-graphite ashiwo ngenhla ngokuvamile aqukethe amaminerali wobumba angama-50%, ngenkathi ukungcola (okuqukethwe kwe-ash) kuma-graphiolity graphioles ama-gruxibles amangalo angaphansi kwe-1%, esetshenziselwa ukucwilisa izinsimbi zokuhlanza okuphezulu. Kukhona futhi igraphite ephezulu yokuhlanza eyenze ukwelashwa okukhethekile kokuhlanzeka (okuqukethwe kwe-Ash <20ppm). Ama-graphite graphioles ama-graphiolity ajwayele ukusetshenziselwa ukuncibilikisa amanani amancane ezinsimbi eziyigugu, izinsimbi zokuhlanza okuphezulu, noma izinsimbi eziphezulu zendawo kanye no-oxides. Ingasetshenziswa futhi njengento ebekiwe yokuhlaziywa kwegesi ngensimbi.

Inqubo yokukhiqiza
Inqubo yokukhiqiza ama-graphite ama-trucibles ingahlukaniswa ngezinhlobo ezintathu: ukubumba ngesandla, ukubumba okujikelezayo, nokubumba kokuncintisana. Izinga le-Earccible lihlobene kakhulu nenqubo yokubumba indlela. Indlela eyakhekayo inquma ukwakheka, ukuqina, ukuqina kanye namandla okusebenza komzimba ebelekile.
Ama-Curnibles abunjiwe ngesandla ngezinhloso ezikhethekile awanakusungulwa usebenzisa izindlela zokubumba ezijikelezayo noma zokucindezela. Amanye ama-mbala akhethekile abunjiwe angakhiwa ngokuhlanganisa ukubumba okujikelezayo nokubumba ngesandla.
Ukubumba okujikelezayo kuyinqubo lapho umshini ongawusebenzisa khona isikhunta ukuze usebenze futhi usebenzisa ummese wangaphakathi ukuze ukhiphe ubumba ukuze uqede ubumba ukuqedela ukubumba okubethelwe.
Ukubumba kokucindezela ukusetshenziswa kwemishini yokucindezela njengokucindezela kwamafutha, ingcindezi yamanzi, noma ingcindezi yomoya njengamandla e-kinetic, usebenzisa isikhunta sensimbi sokwakheka kwepulasitiki. Uma kuqhathaniswa nendlela yokubumba ejikelezayo, kunezinzuzo zenqubo elula, umjikelezo wokukhiqiza omfishane, isivuno esiphakeme kanye nokuqina komswakama, umswakama ophansi wokubumba kanye ne-shrinkage ephansi, i-shrinkage ephansi, ikhwalithi yomkhiqizo ophansi kanye nekhwalithi ephezulu yomkhiqizo.

Ukunakekelwa nokulondolozwa
Ama-graphite ama-graphite kufanele avikeleke kumswakama. Ama-graphite ama-brucIbles asaba kakhulu umswakama, ongaba nomthelela omkhulu kwikhwalithi. Uma isetshenziswa nge-damp enobunzima, ingadala ukuqhekeka, ukuqhuma, ukuwa phansi, nokuwa phansi, okuholela ekulahlekelweni kwensimbi enbunyezeli ngisho nezingozi ezihlobene nomsebenzi. Ngakho-ke, lapho ugcina futhi usebenzisa ama-graphite amabhulukwe, ukunakwa kufanele kukhokhwe ekuvinjelweni komswakama.
Indawo yokugcina impahla yokugcina ama-graphite frucibles kufanele yome futhi inondiso, futhi izinga lokushisa kufanele ligcinwe phakathi kwama-5 ℃ no-25 ℃, nomswakama ohlobene ka-50-60%. Ama-Crucibles akufanele agcinwe enhlabathini yezitini noma emhlabathini kasimende ukuze uvikele umswakama. I-graphite ngobuningi kufanele ibekwe ohlakeni lwamapulangwe, mhlawumbe i-25-30cm ngaphezu komhlaba; Ihlanganiswe emabhokisini enkuni, obhasikidi bama-wicker, noma izikhwama zotshani, abalele kufanele babekwe ngaphansi kwamaphakethe, hhayi ngaphansi kwe-20cm ngaphezulu komhlaba. Ukubeka ungqimba lobuzweyo kwa-Sreers kulungele ukwenziwa komswakama. Ngesikhathi esithile sokufaka ukugxila, kuyadingeka ukufaka ungqimba oluphansi kubheke phansi, mhlawumbe ngezendlalelo ezingenhla nezingaphansi ezibhekene nazo. Ukuphumula phakathi kokufaka nokufaka izitokisi akufanele kube yinde kakhulu. Ngokuvamile, ukubekeka kufanele kwenziwe kanye njalo ezinyangeni ezimbili. Uma umswakama womhlabathi ungekho phezulu, ukufakwa kwempahla kungenziwa kanye njalo ezinyangeni ezintathu. Ngamafuphi, ukugoqa njalo kungafinyelela umphumela omuhle wokufakazelwa umswakama.