I-iron-chromium-aluminium kanye ne-nickel-chromium electrothermal alloys ngokuvamile anokumelana ne-oxidation eqinile, kodwa ngenxa yokuthi isithando somlilo siqukethe amagesi ahlukahlukene, njengomoya, umkhathi we-carbon, umkhathi wesulfure, i-hydrogen, umkhathi we-nitrogen, njll. Wonke anomthelela othile.Nakuba zonke izinhlobo zama-alloys e-electrothermal ziye zabhekana nokwelashwa kwe-anti-oxidation ngaphambi kokushiya ifektri, zizodala umonakalo ezingxenyeni ngezinga elithile ezixhumanisini zokuhamba, ukuvunguza, nokufakwa, okuzonciphisa impilo yesevisi.Ukuze kunwetshwe impilo yesevisi, ikhasimende kudingeka lenze ukwelashwa kwe-pre-oxidation ngaphambi kokusetshenziswa.Indlela yokushisa i-electric heat alloy element efakiwe emoyeni owomile ukuya kuma-degree angu-100-200 ngaphansi kwezinga lokushisa elivumelekile le-alloy, ligcine lifudumele amahora angu-5-10, bese Isithando somlilo singapholiswa kancane kancane.
Kuyaqondakala ukuthi ububanzi nobukhulu bentambo yokushisa iyipharamitha ehlobene nokushisa okuphezulu kokusebenza.Ubukhulu be-diameter yocingo lokufudumeza, kulula ukunqoba inkinga ye-deformation ekushiseni okuphezulu nokwandisa impilo yayo yesevisi.Lapho ucingo lokushisa lusebenza ngaphansi kwezinga lokushisa eliphezulu lokusebenza, ububanzi akumele bube ngaphansi kuka-3mm, futhi ubukhulu bomugqa oyisicaba akumele bube ngaphansi kuka-2mm.Impilo yesevisi yocingo lokufudumeza nayo ihlobene kakhulu nobubanzi nogqinsi lwentambo yokufudumeza.Lapho ucingo lokushisa lusetshenziswa endaweni yokushisa ephezulu, ifilimu ye-oxide evikelayo izokwakhiwa phezulu, futhi ifilimu ye-oxide izoguga ngemva kwesikhathi esithile, yakha umjikelezo wesizukulwane esiqhubekayo nokubhujiswa.Le nqubo futhi inqubo yokusetshenziswa okuqhubekayo kwezinto ngaphakathi kwentambo yesithando somlilo kagesi.Intambo kagesi yesithando somlilo enobubanzi obukhudlwana nogqinsi inokuqukethwe okwengeziwe nempilo ende yesevisi.
Ukwahlukanisa
Ama-alloys e-Electrothermal: ngokuya ngokuqukethwe kwawo kwamakhemikhali kanye nesakhiwo, angahlukaniswa izigaba ezimbili:

Olunye uchungechunge lwe-iron-chromium-aluminium alloy,

Olunye uchungechunge lwe-nickel-chromium alloy, olunezinzuzo zalo njengezinto zokushisa zikagesi, futhi zisetshenziswa kakhulu.

Inhloso eyinhloko
Imishini ye-Metallurgical, ukwelashwa, imboni yamakhemikhali, i-ceramics, i-electronics, izinto zikagesi, ingilazi nezinye izinto zokufudumeza zasezimbonini kanye nemishini yokushisisa umphakathi.

Izinzuzo nemibi
1. Izinzuzo nezinkinga eziyinhloko zochungechunge lwe-iron-chromium-aluminium alloy: Izinzuzo: i-iron-chromium-aluminium yokushisa kagesi ingxubevange inezinga lokushisa eliphezulu lesevisi, izinga lokushisa eliphezulu lesevisi lingafinyelela ku-1400 degrees, (0Cr21A16Nb, 0Cr27A17Mo2, njll. ), impilo ende yesevisi, umthwalo ophezulu wendawo, nokumelana okuhle kwe-oxidation, ukumelana okuphezulu, okushibhile nokunye.Ukungalungi: Amandla aphansi kakhulu izinga lokushisa eliphezulu.Njengoba izinga lokushisa likhula, ipulasitiki yayo iyanda, futhi izingxenye zikhubazeka kalula, futhi akulula ukugoba nokulungisa.

2. Izinzuzo eziyinhloko kanye nebubi bochungechunge lwe-nickel-chromium kagesi yokufudumeza ingxubevange: Izinzuzo: amandla okushisa aphezulu aphakeme kunalawo e-iron-chromium-aluminium, akulula ukukhubazeka ngaphansi kokusetshenziswa kokushisa okuphezulu, isakhiwo sawo akulula ukusishintsha, kuhle. ipulasitiki, kulula ukukhanda, ukukhishwa kwegesi ephezulu, okungewona uzibuthe, ukumelana nokugqwala Kunamandla, impilo ende yesevisi, njll. Ububi: Ngenxa yokuthi yenziwe ngezinto ezingavamile zensimbi ye-nickel, intengo yalolu chungechunge lwemikhiqizo iphakeme izikhathi eziningana kunalokho. ye-Fe-Cr-Al, futhi izinga lokushisa lokusetshenziswa liphansi kunalelo le-Fe-Cr-Al.

okuhle nokubi
Okokuqala, sidinga ukwazi ukuthi ucingo lokushisa lufinyelela esimweni esishisayo esibomvu, esinento yokwenza nenhlangano yocingo lokushisa.Masisuse isomisi sezinwele kuqala futhi sinqume ingxenye yocingo lokushisisa.Sebenzisa i-8V 1A transformer, futhi ukumelana kwentambo yokushisa noma intambo yokushisa yengubo kagesi akufanele ibe ngaphansi kuka-8 ohms, ngaphandle kwalokho i-transformer izoshisa kalula.Nge-transformer engu-12V 0.5A, ukumelana kocingo lokushisa akufanele kube ngaphansi kwama-ohms angu-12, ngaphandle kwalokho i-transformer izoshisa kalula.Uma intambo yokushisa ifinyelela esimweni esishisayo esibomvu, i-redder iba ngcono, kufanele usebenzise i-transformer engu-8V 1A, futhi amandla ayo makhulu kune-12V 0.5A transformer.Ngale ndlela, singakwazi ukuhlola kangcono izinzuzo nezinkinga zocingo lokushisa.

4 Ukuhleleka kwento yokunaka
1. Izinga lokushisa eliphezulu lokusebenza kwengxenye libhekisela ekushiseni okungaphezulu kwengxenye ngokwayo emoyeni owomile, hhayi ukushisa kwesithando somlilo noma into evuthayo.Ngokuvamile, izinga lokushisa elingaphezulu licishe libe ngama-degree angu-100 ngaphezu kwezinga lokushisa lesithando somlilo.Ngakho-ke, ngokucabangela izizathu ezingenhla, ekwakhiweni Naka izinga lokushisa lokusebenza kwezingxenye.Lapho izinga lokushisa lokusebenza lidlula umkhawulo othile, i-oxidation yezingxenye ngokwazo izosheshisa futhi ukumelana nokushisa kuzoncishiswa.Ikakhulukazi izingxenye zengxube ye-iron-chromium-aluminium yokufudumeza kagesi kulula ukonakala, ukugoqa, noma ukuphuka, okwenza kube mfushane impilo yesevisi..

2. Ukushisa okuphezulu okusebenzayo kwengxenye kunobudlelwane obuningi nobubanzi bentambo yengxenye.Ngokuvamile, izinga lokushisa eliphezulu lokusebenza kwengxenye kufanele libe nobubanzi bocingo obungekho ngaphansi kuka-3mm, futhi ubukhulu bomugqa oyisicaba akufanele bube ngaphansi kuka-2mm.

3. Kunobudlelwane obuningi phakathi komkhathi ogqwalayo esithandweni kanye nezinga lokushisa eliphezulu lokusebenza kwezingxenye, futhi ukuba khona komkhathi ogqwalayo kuvame ukuba nomthelela ekushiseni okusebenzayo kanye nempilo yesevisi yezingxenye.

4. Ngenxa yamandla aphansi okushisa aphezulu e-iron-chromium-aluminium, izingxenye zikhubazekile kalula emazingeni aphezulu okushisa.Uma ububanzi bocingo lungakhethwanga kahle noma ukufakwa kungalungile, izingxenye zizowa futhi zifushane ngenxa yokuguqulwa kokushisa okuphezulu.Ngakho-ke, kufanele kucatshangelwe lapho uklama izingxenye.isici sayo.

5. Ngenxa yokwakheka kwamakhemikhali okuhlukile kwe-iron-chromium-aluminium, i-nickel, i-chromium nolunye uchungechunge lwama-alloys okushisa kagesi, izinga lokushisa lokusetshenziswa nokumelana ne-oxidation kunqunywa umehluko we-resistivity, onqunywa ku-iron-chromium heat alloy material. I-Al element ye-resistivity, i-Ni-Cr kagesi yokushisisa ingxubevange inquma ukumelana kwento engu-Ni.Ngaphansi kwezimo zokushisa eziphakeme, ifilimu ye-oxide eyakhiwe ebusweni be-alloy element inquma impilo yesevisi.Ngenxa yokusetshenziswa kwesikhathi eside, isakhiwo sangaphakathi se-elementi sishintsha njalo, futhi ifilimu ye-oxide eyakhiwe phezulu nayo iyaguga futhi ibhujiswe.Izakhi ezingaphakathi kwezingxenye zayo zihlala zidliwa.Okufana no-Ni, Al, njll., ngaleyo ndlela kufinyezwa impilo yesevisi.Ngakho-ke, lapho ukhetha ububanzi bocingo lwentambo yesithando somlilo kagesi, kufanele ukhethe ucingo olujwayelekile noma ibhande eliyisicaba elibanzi.