Induction incibilikisa isithando somlilo ukuncibilika kwesiliva nengxubevange yalo

Izici zesiliva nama-alloys ayo

Isiliva insimbi eyigugu enephuzu lokuncibilika elingu-960.8Y kanye nokuminyana okungu-10.49g/cm3. Ayifaki oxidize ekamelweni lokushisa. Isiliva elimsulwa limhlophe qhwa. Ingenza ingxubevange nganoma iyiphi ingxenye yegolide noma yethusi. Lapho i-alloy iqukethe izilinganiso zegolide noma zethusi Njengoba ikhula, umbala uphenduka ophuzi. Uma isiliva liyi-eutectic ne-aluminium ne-zinc, kulula kakhulu ukwenza i-alloy. Phakathi kwazo zonke izinsimbi, isiliva ine-conductivity engcono kakhulu.

Uma isiliva lincibilikiswa esithandweni se-metallurgical esijwayelekile, lizokhipha i-oxidize futhi libe namandla. Kodwa uma kunensimbi efafaziwe (insimbi efafaziwe ibhekisela ezinsimbi ezinenani eliphansi ezihlala ndawonye futhi ezikhona njengokungcola kwensimbi, imikhiqizo egxilile kanye nemaphakathi yezitshalo ze-metallurgical zegolide, isiliva neqembu lezinsimbi, ikakhulukazi ezihlanganisa ithusi, umthofu, zinc. i-silver oxide iyancipha ngokushesha Ngaphansi kokuncibilika okuvamile (izinga lokushisa lesithando somlilo 1100-1300 ^), ukulahlekelwa kwe-volatilization yesiliva cishe ku-1% noma ngaphansi, kodwa uma i-oxidation iqinile, ayikho i-ejenti ekhavayo esiliva elincibilikisiwe, kanye nokushaja. iqukethe umthofu owengeziwe, i-zinc, izikhumbuzo, izibopho, njll. Uma insimbi iguquguquka, ukulahlekelwa kwesiliva kuzokwanda.

Lapho isiliva lincibilika emoyeni, likwazi ukumunca cishe izikhathi ezingama-21 umthamo walo womoya-mpilo, okhululwa lapho isiliva lijiya ukuze libe isimo esibilayo, esivame ukubizwa ngokuthi “imvula eyisiliva”, okuzobangela ukulahleka kobuhlalu obusiliva obucolekile. .

Inqubo yokulingisa esiliva

Isinyathelo sokugcina sokuhlanzwa kwesiliva nokucwengisiswa ukuncibilikisa impushana yesiliva emsulwa kakhulu noma ipuleti lesiliva elicwengisiswe ngezindlela ze-electrolytic noma zamakhemikhali, bese liphonswa kuma-ingots noma amapellets ahlangabezana nezindinganiso zikazwelonke noma ezinye izicaciso.

Isithando somlilo se-induction esincibilikisayo esisetshenziselwa ukubunjwa okuhle kwegolide nesiliva. Umthamo ungakhethwa ngokuya ngomthamo wansuku zonke wokucubungula wegolide nesiliva, imvamisa cishe u-50 ~ 200kg. Uma kunezidingo ezikhethekile, isithando somlilo esincibilikisayo esikhudlwana singasetshenziselwa ukuncibilika kokungeniswa. Amaphuzu ayinhloko okusebenza kwezobuchwepheshe kwesithando somlilo esincibilikisa isiliva ami kanje.

Engeza inani elifanele le-flux ne-oxidant

Ngokuvamile, i-saltpeter ne-sodium carbonate noma i-saltpeter ne-borax yengezwa. Inani le-flux ne-oxidant eyengeziwe liyahlukahluka ngokuhlanzeka kwensimbi. Njengokuncibilikisa i-electrolytic silver powder equkethe isiliva engaphezu kuka-99.88%, ngokuvamile yengeza kuphela u-0.1% -0.3% we-sodium carbonate ukuze i-oxidize ukungcola futhi ihlambulule i-slag; ngenkathi uncibilikisa isiliva ngokungcola okuphezulu, ungakwazi ukwengeza inani elifanele le-saltpeter ne-borax ukuze uqinise I-Oxidize ingxenye yokungcola ukwenza i-slagging futhi isuse. Ngesikhathi esifanayo, inani le-sodium carbonate kufanele lenyuke ngokufanele. Inani le-oxidant akufanele libe liningi kakhulu, ngaphandle kwalokho i-crucible izoba ne-oxidized kakhulu futhi yonakaliswe.

Ngemuva kwenqubo yokuncibilikisa i-oxidation kanye ne-slagging, ibanga lesiliva le-ingot ephonsiwe liphakeme kunesiliva lempahla eluhlaza, ngakho-ke kuyadingeka ukwengeza inani elifanele le-flux evikelayo kanye ne-oxidant.

B Qinisa ukuvikeleka kanye ne-deoxidation yesiliva

Lapho isiliva lincibilika emoyeni, lingancibilikisa inani elikhulu legesi, elikhishwa lapho lifinyezwa, okuletha ubunzima ekusebenzeni kokukhiqiza futhi kubangele ukulahlekelwa kwensimbi.

Lapho isiliva lincibilika emoyeni, lingancibilika cishe izikhathi ezingama-21 kunomthamo womoya-mpilo. Lo moya-mpilo ukhishwa lapho insimbi ibanda, yenza “imvula yesiliva”, okubangela ukulahlekelwa kwesiliva elicwengekile. Uma umoya-mpilo wephuzile kakhulu ukuthi ungakhululwa, amaphutha afana nezimbobo ezinciphayo, izimbotshana, nezindawo ezinemigodi kwakheka ku-ingot esiliva.

Ekusebenzeni kwangempela, lapho izinga lokushisa lesiliva elincibilikisiwe likhuphuka, ukuncibilika komoyampilo esiliva kuncipha. Ukuze kuncishiswe ubunzima bokuphonsa, izinga lokushisa loketshezi lwesiliva kufanele linyuswe ngaphambi kokuphonswa, futhi ungqimba lwe-ejenti yokunciphisa (njengamalahle, umlotha wezitshalo, njll.) kufanele lumbozwe phezu koketshezi lwesiliva ukuze lususe. umoya-mpilo. Kukhona nocezu lokhuni lukaphayini olufakwe enkokhelweni, olushiswa kakhulu ngokuncibilika kwesiliva ukuze kukhishwe ingxenye yomoya-mpilo. Kukhona futhi ukusetshenziswa kwezinti zokhuni ukunyakazisa uketshezi oluncibilikisiwe ngaphambi kokubunjwa ukuze kuzuzwe inhloso yokukhipha umoya-mpilo.

C kahle izinga lokushisa elithelayo

Lapho insimbi yesiliva iphonswa, ukwanda kwezinga lokushisa lensimbi kuyasiza ukunciphisa inani legesi elincibilikisiwe, futhi insimbi eshisa ngokweqile ithululelwa esikhunjini, futhi izinga lokufingqa lihamba kancane, elizuzisa ukukhululwa kwegesi futhi linciphisa ukukhubazeka kwe-ingot. Ngokuvamile izinga lokushisa lesiliva kufanele libe ngu-1100-1200T; o

D odongeni isikhunta kufanele usebenzise upende, ukuthulula ukusebenza kufanele kube okunengqondo

Uma i-ingot yesiliva iphonswa, sebenzisa i-ethane noma i-petroleum (amafutha esindayo noma idizili) ilangabi ukuze ubheme ungqimba oluncane lwentuthu ngokulinganayo odongeni lwangaphakathi lwesikhunta, futhi umphumela wokusetshenziswa muhle.

Ngaphezu kwalokho, ikhwalithi yomsebenzi wokulingisa ihlobene kakhulu nekhwalithi ye-ingot. Ukuze kukhishwe isikhunta esime mpo, ukugeleza kwe-liquid kufanele kuzinzile, ukugeleza kufanele kube phakathi nendawo, futhi impahla akufanele ihlakazeke futhi udonga lwangaphakathi akufanele lugezwe. Qala ukugeleza, bese ukhuphula ngokushesha ukugeleza koketshezi kuze kube yilapho ingaphezulu lensimbi ligcwala cishe izingxenye ezintathu nesihlanu zokuphakama kwesikhunta, futhi kancane kancane wehlise ijubane ukuze uvumele igesi ukuthi ikhishwe ngokugcwele. Lapho uthela esangweni, naka ukugcwalisa ukugeleza kuze kube yilapho isixazululo singapontshwanga. Ngesikhunta esivulekile esibalulekile esiyisicaba, ukusebenza kulula, inqobo nje uma isikhunta sibekwe endaweni evundlile, umqulu womhlaba u-perpendicular. ku-axis ende yesikhunta, futhi insimbi encibilikisiwe ithululelwa ngokulinganayo emnyombweni wesikhunta. Ukuze kuvikelwe udonga lwangaphakathi lwesikhunta, indawo lapho insimbi encibilikisiwe ithululelwa khona kufanele ishintshwe njalo ngesikhathi sokubunjwa ukuze kuvinjelwe isikhungo sesikhunta ukuthi singagqwali sibe ngumgodi.