igiyoyi masu jure wutakoma zuwa igiyoyi waɗanda zasu iya kiyaye aiki mai aminci na ɗan lokaci a ƙarƙashin yanayin ƙonewa.Ma'auni na kasata GB12666.6 (kamar IEC331) ya raba gwajin juriya na wuta zuwa maki biyu, A da B. Yanayin zafin wuta na aji A shine 950 ~ 1000 ℃, kuma ci gaba da samar da wutar lantarki shine 90min.The harshen wuta zafin jiki na sa B ne 750 ~ 800 ℃, da kuma ci gaba da wuta samar lokaci ne 90 minutes.min, a duk tsawon lokacin gwaji, samfurin ya kamata ya yi tsayayya da ƙimar ƙarfin lantarki da samfurin ya ƙayyade.
Ana amfani da igiyoyi masu tsayayya da wuta a ko'ina a cikin manyan gine-gine, titin jirgin kasa, titin karkashin kasa, manyan tashoshin wutar lantarki, masana'antu masu mahimmanci da ma'adinai da sauran wuraren da suka shafi lafiyar wuta da kashe gobara da ceton rayuka, kamar layin samar da wutar lantarki da layukan sarrafawa. na wuraren gaggawa kamar kayan aikin kashe gobara da fitilun jagorar gaggawa.
A halin yanzu, mafi yawan wayoyi da igiyoyi masu tsayayya da wuta a gida da waje suna amfani da igiyoyin ma'adinan ma'adinai na magnesium oxide da igiyoyi masu tsayayya da wuta na mica tepe;Daga cikin su, an nuna tsarin ma'adinan ma'adinan ma'adinai na magnesium oxide a cikin adadi.
Magnesium oxide ma'adinan kebul ɗin da aka keɓe shi ne nau'in kebul mai jure wuta tare da mafi kyawun aiki.An yi shi da tushen jan ƙarfe, kumfa na tagulla, da kayan kariya na magnesium oxide.Ana kiranta MI (miner insulated cables) na USB a takaice.Wuta-resistant Layer na na USB gaba daya kunshi inorganic abubuwa, yayin da refractory Layer na talakawa wuta resistant igiyoyi ya ƙunshi inorganic abubuwa da kuma general kwayoyin abubuwa.Don haka aikin igiyoyin MI masu iya jurewa wuta ya fi na na yau da kullun masu jure wuta kuma ba zai haifar da lalata ba saboda konewa da ruɓewa.gas.Mi igiyoyin MI suna da kyawawan kaddarorin da ke jure wuta kuma suna iya aiki a yanayin zafi mai zafi na 250 ° C na dogon lokaci.A lokaci guda kuma, suna da tabbacin fashewa, juriya mai ƙarfi, ƙarfin ɗaukar nauyi, juriya na radiation, ƙarfin injina, ƙaramin girman, nauyi mai nauyi, tsawon rai, da ƙwarewar hayaki.Koyaya, farashin yana da tsada, tsarin yana da wahala, kuma ginin yana da wahala.A cikin wuraren ban ruwa na man fetur, mahimman tsarin katako na gine-ginen jama'a, wurare masu zafi da sauran lokuta tare da buƙatun juriya na wuta da kuma tattalin arziki mai karɓuwa, ana iya amfani da irin wannan nau'in na USB tare da kyakkyawan juriya na wuta, amma ana iya amfani dashi kawai don Ƙarƙashin Ƙarƙashin wuta. igiyoyi.
Kebul mai jure wuta da aka nannade dashimica tapeana ta samun rauni akai-akai tare da yadudduka na mica tef a wajen madugu don hana harshen wuta daga konewa, ta yadda za a tsawaita lokacin amintaccen aiki da kiyaye layin na wani ɗan lokaci.
magnesium oxide
Farin amorphous foda.Marasa wari, mara daɗi kuma mara guba.Yana yana da karfi high da low zazzabi juriya (high zazzabi 2500 ℃, low zazzabi -270 ℃), lalata juriya, rufi, mai kyau thermal watsin da kuma Tantancewar Properties, colorless da m crystal, narkewa batu 2852 ℃.Magnesium oxide yana da babban kaddarorin juriya da wuta, kuma yana da babban wurin narkewa.An yi amfani da shi wajen samar da ma'adinan ma'adinai na magnesium oxide masu hana wuta da igiyoyi.
Mica tape
Mica wani nau'in ma'adinai ne mai banƙyama, wanda aka kwatanta da rufi, juriya mai zafi, mai haske, barga na jiki da sinadarai, mai kyau mai zafi mai zafi, elasticity, tauri da rashin konewa, kuma an cire shi a cikin kayan roba na m zanen gado.
Mica tapean yi shi da flake mica foda a cikin takarda mica, wanda ke manne da zanen fiber gilashi tare da m.
Gilashin da aka liƙa a gefe ɗaya na takardar mica ana kiransa "tef mai gefe ɗaya", kuma wanda aka liƙa a bangarorin biyu ana kiransa "tef ɗin mai gefe biyu".A yayin aikin kera, ana manne da yadudduka da yawa tare, a bushe a cikin tanda, a raunata, a rabe cikin kaset masu girma dabam.
Mica tef, wanda kuma aka sani da mica tef mai jure wuta, ana yin ta ( inji mica tape).Wani nau'in abu ne mai jure wuta.Dangane da amfani da shi, ana iya raba shi zuwa: tef ɗin mica don injina da tef ɗin mica don igiyoyi.Dangane da tsarin, an raba shi zuwa: bel mai gefe guda biyu, bel mai gefe guda, bel na uku-in-daya, bel na fim biyu, bel na fim ɗaya, da dai sauransu. A cewar mica, ana iya raba shi zuwa: roba. mica tef, phlogopite mica tef, da muscovite tef.
(1) Ayyukan zafin jiki na al'ada: tef ɗin mica na roba shine mafi kyau, biye da tef ɗin muscovite, kuma tef ɗin phlogopite mara kyau.
(2) Ayyukan haɓakawa a babban zafin jiki: tef ɗin mica na roba shine mafi kyaun, wanda ke biye da tef ɗin phlogopite mica, kuma tef ɗin muscovite mara kyau.
(3) Babban aikin juriya na zafin jiki: tef ɗin mica na roba, ba ya ƙunshi ruwa mai kristal, madaidaicin narkewa 1375 ° C, mafi kyawun juriya na zafin jiki, phlogopite yana sakin ruwa mai kristal sama da 800 ° C, wanda ke biye da juriya mai zafi, muscovite yana sakin lu'ulu'u a 600 ° C Ruwa, rashin ƙarfin juriya mai zafi.
Ceramic refractory silicone roba
Saboda ƙayyadaddun yanayin tsari, kebul mai jure wuta wanda aka nannade da tef na mica yakan haifar da lahani a cikin haɗin gwiwa.Bayan cirewa, tef ɗin mica ya zama mai karye kuma yana da sauƙin faɗuwa, yana haifar da ƙarancin juriyar wuta.Insulation, yana da sauƙin faɗuwa lokacin da aka girgiza shi, don haka yana da wahala a tabbatar da aminci da kwanciyar hankali na sadarwa da ƙarfi na dogon lokaci idan wuta ta tashi.
Magnesia ma'adinan ma'adinan igiyoyi masu tsayayya da wuta suna buƙatar shigo da kayan aiki na musamman, farashin yana da tsada sosai, kuma babban jarin jari yana da yawa;Bugu da kari, kubu na waje na wannan igiyar duk tagulla ne, don haka farashin wannan samfurin ma ya sa wannan samfurin ya yi tsada;da irin wannan nau'in na USB yana da buƙatu na musamman wajen samarwa, sarrafawa, sufuri, shimfida layi, shigarwa da amfani da shi, kuma yana da wahala a yada shi da amfani da shi a babban sikeli, musamman a cikin gine-ginen farar hula.
Lokacin aikawa: Maris 16-2023