Phakathi kwezinto ezichaphazela umgangatho we-electric defrost heat element, umgangatho wezinto eziphathekayo sisizathu esibalulekileyo. Ukukhethwa okufanelekileyo kwezinto eziluhlaza kwi-tube yokufudumeza i-defrost yisiseko sokuqinisekisa umgangatho we-heater defrost.
I-1, umgaqo wokukhetha umbhobho: ukumelana nobushushu, ukuxhathisa kwe-corrosion.
Kwimibhobho yobushushu obuphantsi, iBUNDY, imibhobho ye-aluminiyam, imibhobho yobhedu isetyenziswa ngokubanzi, kwaye imibhobho yobushushu obuphezulu ngokuqhelekileyo iyimibhobho yensimbi engenasici kunye nemibhobho ye-Ingle. I-tube ye-Ingle 800 yokufudumala ingasetyenziselwa kwimeko yomgangatho ophantsi wamanzi, i-tube ye-Ingle 840 yokufudumala yombane ingasetyenziselwa ubushushu obuphezulu bemeko yokusebenza inokumelana ne-oxidation efanelekileyo, inokumelana nokugqwala okulungileyo.
2, ukukhethwa kwentambo yokumelana
Izixhobo zocingo ezixhathisayo eziqhele ukusetyenziswa kwi-electric defrost heat element yi-Fe-Cr-Al kunye ne-Cr20Ni80 yokumelana nocingo. Umahluko omkhulu phakathi kweengcingo ezimbini zokumelana kukuba indawo yokunyibilika ye-0Cr25Al5 iphezulu kune-Cr20Ni80, kodwa kumaqondo okushisa aphezulu, i-0Cr25Al5 ilula i-oxidize, kwaye i-Cr20Ni80 inokugcina ukusebenza okuzinzileyo kumaqondo aphezulu. Ke ngoko, ucingo lokumelana olusetyenziswa kubushushu obuphezulu ngokuqhelekileyo yi-Cr20Ni80.
3, ukhetho lweMgO powder
I-powder ye-MgO ifumaneka phakathi kwentambo yokumelana kunye nodonga lombhobho kwaye isetyenziselwa ukugquma phakathi kocingo lokumelana kunye nodonga lombhobho. Ngelo xesha, i-MgO powder ine-conductivity efanelekileyo ye-thermal. Nangona kunjalo, i-MgO powder ineempawu ezinamandla ze-hygroscopic, ngoko kufuneka iphathwe ngokumelana nomswakama (i-MgO powder eguqulweyo okanye itywinwe ngombhobho wokushisa wombane) xa isetyenziswa.
I-MgO powder inokwahlulwa ibe ngumgubo ophantsi wobushushu kunye nobushushu obuphezulu obuphezulu ngokoluhlu lobushushu obusetyenzisiweyo. I-powder yokushisa ephantsi ingasetyenziswa kuphela ngaphantsi kwe-400 ° C, i-MgO powder eguqulwa ngokubanzi.
I-powder ye-MgO esetyenziswe kumbhobho wokushisa wombane iqulethwe ngobunzima obuhlukeneyo be-MgO powder particles ngokuhambelana nomlinganiselo othile (i-mesh ratio).
I-4, ukukhethwa kwezinto zokutywina
Indima yezinto zokutywinwa kukuthintela umswakama we-atmospheric ukuba ungangeni kwi-MgO powder ngomlomo wombhobho, ukwenzela ukuba i-MgO powder ibe manzi, ukusebenza kwe-insulation kuyancipha, kunye nokuvuza kombhobho wokushisa wombane kunye nokungaphumeleli. Ipowder ye-magnesia elungisiweyo ayinakutywinwa.
Izinto eziphambili ezisetyenziselwa ukutywina i-tube yokufudumala yombane (ubumanzi-ubungqina) yiglasi, i-epoxy resin, ioli ye-silicone kunye nokunye. Kumbhobho wokushisa wombane otywinwe ngeoli ye-silicone, emva kokufudumeza, ioli ye-silicone emlonyeni wombhobho iya kuhlanjululwa ngubushushu, kwaye ukukhutshwa kombhobho wokushisa wombane kuya kuncipha. Ukumelana nobushushu bezinto ze-epoxy resin akukho phezulu, kwaye ayikwazi ukusetyenziswa kwiityhubhu zombane ezinobushushu obuphezulu njenge-barbecue kunye ne-oven microwave enobushushu obuphezulu emlonyeni wombhobho. Iglasi inokumelana nobushushu obuphezulu, kodwa ixabiso liphezulu, kwaye lisetyenziselwa ukutywina imibhobho yobushushu obuphezulu.
Ukongeza, kuya kubakho iityhubhu abicah, imikhono abicah, amaso porcelain, insulators zeplastiki kunye nezinye iindawo emlonyeni umbhobho, ikakhulu ukunyusa umsantsa yombane kunye nomgama creepage phakathi intonga ilothe kunye nodonga lwentsimbi umlomo umbhobho. I-rubber ye-Silicone inokudlala indima yokuzalisa kunye nokudibanisa.
Ukuba unomdla kwiimveliso zethu, pls uqhagamshelane nathi ngqo!
Abafowunelwa: Amiee Zhang
Email: info@benoelectric.com
Wechat: +86 15268490327
WhatsApp: +86 15268490327
Skype: amiee19940314
Ixesha lokuposa: May-16-2024