Ulwahlulo
Ii-alloys ze-electrothermal: ngokweekhemikhali kunye nolwakhiwo lwazo, zingahlulwa zibe ziindidi ezimbini:
Enye luluhlu lwe-iron-chromium-aluminium alloy,
Enye luchungechunge lwe-nickel-chromium alloy, oluneengenelo zalo njengezixhobo zokufudumeza ngombane, kwaye lusetyenziswa kakhulu.
Injongo ephambili
Oomatshini besinyithi, unyango, ishishini leekhemikhali, iiseramikhi, izixhobo ze-elektroniki, izixhobo zombane, iglasi kunye nezinye izixhobo zokufudumeza zoshishino kunye nezixhobo zokufudumeza zikawonke-wonke.
Iingenelo kunye nokungalungi
1. Iingenelo eziphambili kunye nokungalungi koluhlu lwe-iron-chromium-aluminium alloy: Iingenelo: i-iron-chromium-aluminium electric heating alloy inobushushu obuphezulu benkonzo, ubushushu obuphezulu benkonzo bunokufikelela kwi-1400 degrees, (0Cr21A16Nb, 0Cr27A17Mo2, njl.njl.), ubomi obude benkonzo, umthwalo ophezulu womphezulu, kunye nokumelana okuhle kwe-oxidation, ukumelana okuphezulu, ixabiso eliphantsi njalo njalo. Iingxaki: Amandla aphantsi kakhulu kubushushu obuphezulu. Njengoko ubushushu busanda, i-plasticity yayo iyanda, kwaye izinto ziyaguquguquka lula, kwaye akukho lula ukugoba nokulungisa.
2. Iingenelo eziphambili kunye nokungalungi kochungechunge lwe-alloy yokufudumeza ngombane ye-nickel-chromium: Iingenelo: amandla aphezulu obushushu aphezulu angaphezulu kunalawo e-iron-chromium-aluminium, akulula ukuwaguqula xa kusetyenziswa ubushushu obuphezulu, isakhiwo sawo akulula ukusitshintsha, siplastiki kakuhle, kulula ukusilungisa, sikhupha umbane ophezulu, asisebenzisi magnethi, sinokumelana nokugqwala. Iqinile, ihlala ixesha elide, njl. Iingxaki: Ngenxa yokuba yenziwe ngezinto zesinyithi ze-nickel ezinqabileyo, ixabiso lolu luhlu lweemveliso liphezulu ngokuphindwe kaninzi kunele-Fe-Cr-Al, kwaye ubushushu bokusetyenziswa buphantsi kunele-Fe-Cr-Al.
okulungileyo nokubi
Okokuqala, kufuneka sazi ukuba ucingo olufudumezayo lufikelela kwimeko ebomvu eshushu, enento yokwenza nokuhlelwa kocingo olufudumezayo. Masiqale sisuse isomisi seenwele size sinqumle icandelo locingo olufudumezayo. Nge-transformer ye-8V 1A, ukumelana kocingo olufudumezayo okanye ucingo olufudumezayo lwengubo yombane akufuneki kube ngaphantsi kwe-8 ohms, kungenjalo i-transformer iya kutsha lula. Nge-transformer ye-12V 0.5A, ukumelana kocingo olufudumezayo akufuneki kube ngaphantsi kwe-24 ohms, kungenjalo i-transformer iya kutsha lula. Ukuba ucingo olufudumezayo lufikelela kwimeko ebomvu eshushu, okukhona lubomvu ngakumbi kokukhona kungcono, kufuneka usebenzise i-transformer ye-8V 1A, kwaye amandla ayo makhulu kune-transformer ye-12V 0.5A. Ngale ndlela, sinokuvavanya ngcono iingenelo kunye nokungalungi kocingo olufudumezayo.
1. Ubushushu obuphezulu bokusebenza kwecandelo bubhekisa kubushushu bomphezulu wecandelo ngokwalo emoyeni owomileyo, kungekhona ubushushu besithando okanye into eshushu. Ngokubanzi, ubushushu bomphezulu buphezulu ngama-degrees ali-100 kunobushushu besithando. Ke ngoko, xa ucinga ngezizathu ezingasentla, kuyilo Nika ingqalelo kubushushu bokusebenza kwecandelo. Xa ubushushu bokusebenza budlula umda othile, i-oxidation yecandelo ngokwalo iya kukhawuleziswa kwaye ukumelana nobushushu kuya kuncitshiswa. Ingakumbi izixhobo zokufudumeza ngombane ze-iron-chromium-aluminium kulula ukuziguqula, ukuzidiliza, okanye ukuziqhekeza, nto leyo enciphisa ubomi benkonzo.
2. Ubushushu obuphezulu bokusebenza kwecandelo bunobudlelwane obukhulu nobubanzi bentambo yecandelo. Ngokubanzi, ubushushu obuphezulu bokusebenza kwecandelo kufuneka bube nobubanzi bentambo obungaphantsi kwe-3mm, kwaye ubukhulu bomcu othe tyaba akufuneki bube ngaphantsi kwe-2mm.
3. Kukho ubudlelwane obukhulu phakathi komoya otshisayo okwisithando somlilo kunye nobushushu obuphezulu bokusebenza kwamacandelo, kwaye ubukho bomoya otshisayo budla ngokuchaphazela ubushushu bokusebenza kunye nobomi benkonzo yamacandelo.
4. Ngenxa yamandla aphantsi obushushu obuphezulu be-iron-chromium-aluminium, izinto zitshintsha ngokulula xa kushushu kakhulu. Ukuba ububanzi bentambo abukhethwanga kakuhle okanye ukufakwa akulunganga, izinto ziya kudilika kwaye zikhawuleze ngenxa yokuguquguquka kobushushu obuphezulu. Ke ngoko, kufuneka kuthathelwe ingqalelo xa kuyilwa izinto.
5. Ngenxa yeendlela ezahlukeneyo zeekhemikhali ze-iron-chromium-aluminium, i-nickel, i-chromium kunye nezinye ii-alloys zokufudumeza ngombane, ubushushu bokusetyenziswa kunye nokumelana ne-oxidation kugqitywa ngumahluko kwi-resistivity, emiselwa kwi-iron-chromium heat alloy material Al element ye-resistivity, i-Ni-Cr electric heating alloy material imisela i-resistivity ye-element Ni. Phantsi kweemeko zobushushu obuphezulu, ifilimu ye-oxide eyenziwe kumphezulu we-alloy imisela ubomi benkonzo. Ngenxa yokusetyenziswa kwexesha elide, ulwakhiwo lwangaphakathi lwe-element luhlala lutshintsha, kwaye ifilimu ye-oxide eyenziwe kumphezulu nayo iyaguga kwaye iyatshatyalaliswa. Izinto ezikwiinxalenye zayo zihlala zisetyenziswa. Ezifana ne-Ni, i-Al, njl., ngaloo ndlela zinciphisa ubomi benkonzo. Ke ngoko, xa ukhetha ububanzi bentambo ye-electric furnace wire, kufuneka ukhethe i-standard wire okanye i-flat belt etyebileyo.