Ama-electrothermal alloys e-iron-chromium-aluminium kanye ne-nickel-chromium ngokuvamile anokumelana okukhulu kwe-oxidation, kodwa ngoba isithando somlilo siqukethe amagesi ahlukahlukene, njengomoya, umoya wekhabhoni, umoya wesulfure, i-hydrogen, umoya we-nitrogen, njll. Wonke anomthelela othile. Nakuba zonke izinhlobo zama-electrothermal alloys ziye zaphathwa nge-anti-oxidation ngaphambi kokushiya ifektri, azobangela umonakalo ezingxenyeni ngezinga elithile ezixhumanisweni zokuhamba, ukugoqa, kanye nokufakwa, okuzonciphisa impilo yesevisi. Ukuze kwandiswe impilo yesevisi, ikhasimende kudingeka ukuthi lenze ukwelashwa kwe-pre-oxidation ngaphambi kokusebenzisa. Indlela iwukushisa i-element ye-heating alloy kagesi efakiwe emoyeni owomile ibe ngama-degrees angu-100-200 ngaphansi kwezinga lokushisa eliphezulu elivumelekile le-alloy, ligcine lifudumele amahora angu-5-10, bese isithando somlilo singapholiswa kancane.
Kuyaqondakala ukuthi ububanzi nobukhulu bentambo yokushisa kuyipharamitha ehlobene nokushisa okuphezulu kokusebenza. Uma ububanzi bentambo yokushisa bukhulu, kulula kakhulu ukunqoba inkinga yokuguquguquka ekushiseni okuphezulu nokwandisa impilo yayo yesevisi. Lapho intambo yokushisa isebenza ngaphansi kwezinga lokushisa eliphezulu lokusebenza, ububanzi akufanele bube ngaphansi kuka-3mm, kanti ubukhulu bomugqa oyisicaba akufanele bube ngaphansi kuka-2mm. Impilo yesevisi yentambo yokushisa nayo ihlobene kakhulu nobubanzi nobukhulu bentambo yokushisa. Lapho intambo yokushisa isetshenziswa endaweni eshisa kakhulu, kuzokwakhiwa ifilimu ye-oxide evikelayo ebusweni, futhi ifilimu ye-oxide izoguga ngemva kwesikhathi esithile, yakha umjikelezo wokukhiqizwa nokubhujiswa okuqhubekayo. Le nqubo futhi iyinqubo yokusetshenziswa okuqhubekayo kwezinto ngaphakathi kwentambo yesithando sikagesi. Intambo yesithando sikagesi enobubanzi nobukhulu obukhulu inokuqukethwe okwengeziwe kwezinto kanye nokuphila isikhathi eside kwenkonzo.
Ukuhlukaniswa
Ama-alloy e-electrothermal: ngokuya ngokuqukethwe kwawo kwezakhi zamakhemikhali kanye nesakhiwo, angahlukaniswa ngezigaba ezimbili:

Enye uchungechunge lwe-iron-chromium-aluminium alloy,

Olunye uchungechunge lwe-nickel-chromium alloy, olunezinzuzo zalo njengezinto zokushisa zikagesi, futhi lusetshenziswa kabanzi.

Inhloso eyinhloko
Imishini yensimbi, ukwelashwa, imboni yamakhemikhali, izinto zobumba, izinto zikagesi, izinto zikagesi, ingilazi neminye imishini yokushisa yezimboni kanye nezinto zokushisa zomphakathi.

Izinzuzo kanye nokungalungi
1. Izinzuzo eziyinhloko kanye nokungalungi kochungechunge lwe-iron-chromium-aluminium alloy: Izinzuzo: i-iron-chromium-aluminium eshisayo kagesi i-alloy inokushisa okuphezulu kwesevisi, izinga lokushisa eliphezulu lesevisi lingafinyelela kuma-degrees angu-1400, (0Cr21A16Nb, 0Cr27A17Mo2, njll.), impilo ende yesevisi, umthwalo ophezulu womphezulu, kanye nokumelana okuhle kwe-oxidation, ukumelana okuphezulu, okushibhile njalo njalo. Okubi: Amandla aphansi kakhulu ekushiseni okuphezulu. Njengoba izinga lokushisa landa, ukuqina kwalo kuyanda, futhi izingxenye ziyaguquguquka kalula, futhi akulula ukugoba nokulungisa.

2. Izinzuzo eziyinhloko kanye nokungalungi kochungechunge lwe-alloy yokushisa kagesi ye-nickel-chromium: Izinzuzo: amandla okushisa aphezulu aphezulu kune-iron-chromium-aluminium, akulula ukuwohloka ngaphansi kokusetshenziswa kokushisa okuphezulu, isakhiwo saso akulula ukusishintsha, sithambile kahle, kulula ukusilungisa, sikhipha uketshezi oluningi, asinamandla kazibuthe, simelana nokugqwala. Siqinile, siphila isikhathi eside, njll. Okubi: Ngenxa yokuthi senziwe ngezinto zensimbi ze-nickel ezingavamile, intengo yalolu chungechunge lwemikhiqizo iphakeme kaningana kuneye-Fe-Cr-Al, futhi izinga lokushisa lokusetshenziswa liphansi kunele-Fe-Cr-Al.

okuhle nokubi
Okokuqala, sidinga ukwazi ukuthi ucingo olufudumezayo lufinyelela esimweni esishisayo esibomvu, okuhlobene nokuhleleka kwentambo yokushisa. Ake sisuse umshini wokomisa izinwele kuqala bese sinquma ingxenye yentambo yokushisa. Sebenzisa i-transformer engu-8V 1A, futhi ukumelana kwentambo yokushisa noma ucingo olufudumezayo lwengubo kagesi akufanele kube ngaphansi kwama-ohms angu-8, ngaphandle kwalokho i-transformer izosha kalula. Nge-transformer engu-12V 0.5A, ukumelana kwentambo yokushisa akufanele kube ngaphansi kwama-ohms angu-12, ngaphandle kwalokho i-transformer izosha kalula. Uma ucingo olufudumezayo lufinyelela esimweni esishisayo esibomvu, uma lubomvu kakhulu kungcono, kufanele usebenzise i-transformer engu-8V 1A, futhi amandla alo makhulu kune-transformer engu-12V 0.5A. Ngale ndlela, singahlola kangcono izinzuzo kanye nokungalungi kwentambo yokushisa.

4 Ukuhlela Izinto Ezibalulekile
1. Izinga lokushisa eliphezulu lokusebenza kwengxenye libhekisela ekushiseni okuphezulu kwengxenye ngokwayo emoyeni owomile, hhayi ekushiseni kwesithando somlilo noma into eshisayo. Ngokuvamile, izinga lokushisa lobuso liphakeme ngama-degrees ayi-100 kunezinga lokushisa lesithando somlilo. Ngakho-ke, uma ucabangela izizathu ezingenhla, ekwakhiweni Naka izinga lokushisa lokusebenza kwezingxenye. Lapho izinga lokushisa lokusebenza lidlula umkhawulo othile, ukushiswa kwezingxenye ngokwazo kuzosheshiswa futhi ukumelana nokushisa kuzoncishiswa. Ikakhulukazi izingxenye ze-alloy yokushisa kagesi yensimbi-chromium-aluminium kulula ukuzishintsha, ukuzibhidliza, noma ukuziphula, okunciphisa isikhathi senkonzo. .

2. Izinga lokushisa eliphezulu lokusebenza kwengxenye linobudlelwano obukhulu nobubanzi bentambo yengxenye. Ngokuvamile, izinga lokushisa eliphezulu lokusebenza kwengxenye kufanele libe nobubanzi bentambo obungaphansi kuka-3mm, kanti ubukhulu bomugqa oyisicaba akufanele bube ngaphansi kuka-2mm.

3. Kukhona ubudlelwano obukhulu phakathi komkhathi oqothulayo esithandweni somlilo kanye nokushisa okuphezulu kokusebenza kwezingxenye, futhi ukuba khona komkhathi oqothulayo kuvame ukuthinta izinga lokushisa lokusebenza kanye nokuphila kwenkonzo kwezingxenye.

4. Ngenxa yamandla aphansi okushisa okuphezulu kwe-iron-chromium-aluminium, izingxenye ziguquguquka kalula emazingeni okushisa aphezulu. Uma ububanzi bentambo bungakhethwanga kahle noma ukufakwa kungafanele, izingxenye zizowa futhi zinciphise i-circuit ngenxa yokuguquguquka kokushisa okuphezulu. Ngakho-ke, kufanele kucatshangelwe lapho kuklanywa izingxenye.

5. Ngenxa yokwakheka kwamakhemikhali ahlukene e-iron-chromium-aluminium, i-nickel, i-chromium kanye nezinye izinhlobo zokushisa zikagesi eziwuchungechunge, izinga lokushisa lokusetshenziswa kanye nokumelana ne-oxidation kunqunywa umehluko wokumelana, okunqunywa ku-iron-chromium heat alloy material Al element of resistivity, i-Ni-Cr electric heating alloy material inquma ukumelana kwe-element Ni. Ngaphansi kwezimo zokushisa okuphezulu, ifilimu ye-oxide eyakhiwe ebusweni be-alloy inquma impilo yesevisi. Ngenxa yokusetshenziswa kwesikhathi eside, isakhiwo sangaphakathi se-element sishintsha njalo, futhi ifilimu ye-oxide eyakhiwe ebusweni nayo iyaguga futhi iyabhujiswa. Izinto ezingaphakathi kwezingxenye zayo zihlala zisetshenziswa. Njenge-Ni, Al, njll., ngaleyo ndlela zifinyeza impilo yesevisi. Ngakho-ke, lapho ukhetha ububanzi bentambo ye-electric furnace, kufanele ukhethe intambo ejwayelekile noma ibhande eliyisicaba elijiyile.