Hluav taws kub-resistant cablesxa mus rau cov cables uas tuaj yeem tswj xyuas kev ua haujlwm nyab xeeb rau qee lub sijhawm nyob rau hauv cov xwm txheej ntawm cov nplaim taws.kuv lub teb chaws tus qauv GB12666.6 (xws li IEC331) faib cov kev ntsuas hluav taws kub ua ob qib, A thiab B. Cov nplaim hluav taws kub ntawm qib A yog 950 ~ 1000 ℃, thiab lub sijhawm hluav taws kub tsis tu ncua yog 90min.Cov nplaim hluav taws kub ntawm qib B yog 750 ~ 800 ℃, thiab lub sijhawm hluav taws kub tsis tu ncua yog 90 feeb.min, thaum lub sijhawm kuaj tag nrho, tus qauv yuav tsum tiv taus qhov ntsuas hluav taws xob tus nqi teev los ntawm cov khoom.
Hluav taws kub-resistant cables yog dav siv nyob rau hauv high-sawv vaj tse, underground railways, underground txoj kev, loj fais fab chaw nres tsheb, tseem ceeb industrial thiab mining lag luam thiab lwm qhov chaw uas muaj feem xyuam rau hluav taws kev nyab xeeb thiab hluav taws kub-tuag thiab cawm txoj sia, xws li fais fab mov kab thiab tswj kab. ntawm cov chaw thaum muaj xwm ceev xws li cov khoom siv tua hluav taws thiab cov teeb qhia thaum muaj xwm ceev.
Tam sim no, feem ntau cov hluav taws kub-resistant xov hlau thiab cables nyob hauv tsev thiab txawv teb chaws siv magnesium oxide ntxhia insulated cables thiab mica daim kab xev-qhov txhab hluav taws kub-resistant cables;ntawm lawv, cov qauv ntawm magnesium oxide ntxhia insulated cables yog qhia nyob rau hauv daim duab.
Magnesium oxide mineral insulated cable yog ib hom hluav taws kub-resistant cable nrog kev ua tau zoo dua.Nws yog ua los ntawm tooj liab core, tooj liab sheath, thiab magnesium oxide insulating khoom.Nws yog hu ua MI (minerl insulated cables) cable luv luv.Cov hluav taws kub-resistant txheej ntawm cable yog kiag li tsim los ntawm inorganic tshuaj, thaum lub refractory txheej ntawm zoo tib yam hluav taws-resistant cables yog tsim los ntawm inorganic tshuaj thiab cov organic tshuaj.Yog li ntawd, qhov hluav taws kub-resistant kev ua tau zoo ntawm MI cables yog zoo dua li cov hluav taws kub-resistant cables zoo tib yam thiab yuav tsis ua corrosion vim combustion thiab decomposition.gas.MI cables muaj cov khoom tiv thaiv hluav taws zoo thiab tuaj yeem ua haujlwm ntawm qhov kub ntawm 250 ° C rau lub sijhawm ntev.Nyob rau tib lub sij hawm, lawv kuj yog tawg-pov thawj, muaj zog corrosion kuj, loj nqa peev xwm, hluav taws xob tsis kam, siab mechanical zog, me me, lub teeb yuag, lub neej ntev, thiab tsis muaj pa taws tshwj xeeb.Txawm li cas los xij, tus nqi yog kim, cov txheej txheem nyuaj, thiab kev tsim kho nyuaj.Hauv thaj chaw roj av, cov qauv ntoo tseem ceeb rau pej xeem cov tsev, qhov chaw kub thiab lwm yam xwm txheej uas yuav tsum tau muaj hluav taws kub thiab kev lag luam tau txais txiaj ntsig, cov kab hluav taws xob zoo li no tuaj yeem siv tau, tab sis nws tsuas yog siv tau rau qhov hluav taws kub tsis tshua muaj hluav taws xob. kab.
Qhov hluav taws kub-resistant cable qhwv nrogmica daim kab xevyog rov ua mob nrog ntau txheej ntawm mica daim kab xev sab nraum tus neeg xyuas pib los tiv thaiv cov nplaim taws los ntawm kev kub hnyiab, yog li ua kom lub sijhawm ua haujlwm nyab xeeb thiab ua kom cov kab tsis thaiv rau qee lub sijhawm.
magnesium oxide
Dawb amorphous hmoov.Tsis muaj ntxhiab, tasteless thiab tsis muaj tshuaj lom.Nws muaj zog siab thiab tsis kub tsis kam (siab kub 2500 ℃, tsis tshua muaj kub -270 ℃), corrosion kuj, rwb thaiv tsev, zoo thermal conductivity thiab optical zog, tsis muaj xim thiab pob tshab crystal, melting point 2852 ℃.Magnesium oxide muaj hluav taws kub-resistant thiab insulating zog, thiab muaj ib tug siab melting point.Siv nyob rau hauv zus tau tej cov magnesium oxide mineral insulated hluav taws-resistant cables.
Mica daim kab xev
Mica yog flaky inorganic ntxhia cov khoom, uas yog tus cwj pwm los ntawm rwb thaiv tsev, kub tsis kam, luster, ruaj khov lub cev thiab tshuaj zog, zoo tshav kub rwb thaiv tsev, elasticity, toughness thiab tsis-combustibility, thiab nws yog stripped rau hauv elastic zog ntawm pob tshab los xij.
Mica daim kab xevyog ua los ntawm flake mica hmoov rau hauv mica ntawv, uas yog adhered rau iav fiber ntau daim ntaub nrog nplaum.
Cov ntaub iav muab tso rau ntawm ib sab ntawm daim ntawv mica yog hu ua "ib-sab daim kab xev", thiab ib qho muab tso rau ntawm ob sab yog hu ua "ob-sided daim kab xev".Thaum lub sij hawm tsim cov txheej txheem, ntau txheej txheej txheej yog glued ua ke, qhuav nyob rau hauv ib lub qhov cub, qhov txhab, thiab txiav mus rau hauv daim kab xev ntawm ntau thiab tsawg.
Mica daim kab xev, tseem hu ua hluav taws-resistant mica daim kab xev, yog tsim los ntawm (mica tape machine).Nws yog ib hom hluav taws-resistant insulating khoom.Raws li nws siv, nws tuaj yeem muab faib ua: mica daim kab xev rau cov motors thiab mica daim kab xev rau cables.Raws li cov qauv, nws tau muab faib ua: ob-sided txoj siv, ib txoj siv sia, ib txoj siv, peb-hauv-ib txoj siv, ob txoj siv zaj duab xis, ib zaj duab xis siv, thiab lwm yam. Raws li mica, nws tuaj yeem muab faib ua: hluavtaws mica daim kab xev, phlogopite mica daim kab xev, thiab muscovite daim kab xev.
(1) Kev ua haujlwm kub ib txwm: hluavtaws mica daim kab xev yog qhov zoo tshaj plaws, ua raws li muscovite daim kab xev, thiab phlogopite daim kab xev tsis zoo.
(2) Rwb thaiv tsev kev ua tau zoo ntawm qhov kub thiab txias: hluavtaws mica daim kab xev yog qhov zoo tshaj plaws, ua raws li phlogopite mica daim kab xev, thiab muscovite daim kab xev tsis zoo.
(3) Kev ua tau zoo ntawm qhov kub thiab txias: Synthetic mica daim kab xev, tsis muaj dej siv lead ua, melting point 1375 ° C, qhov zoo tshaj plaws kub tsis kam, phlogopite tso cov dej siv lead ua siab tshaj 800 ° C, ua raws li qhov kub thiab txias, muscovite tso tawm crystals ntawm 600 ° C dej, tsis zoo kub tsis kam.
Ceramic refractory silicone roj hmab
Vim muaj kev txwv ntawm cov txheej txheem, cov hluav taws kub-resistant cable qhwv nrog mica daim kab xev feem ntau ua rau cov pob qij txha.Tom qab ablation, daim kab xev mica ua nkig thiab yooj yim poob tawm, ua rau cov nyhuv tsis zoo ntawm hluav taws.Rwb thaiv tsev, nws yog ib qho yooj yim kom poob tawm thaum nws yog shaken, yog li nws yog ib qho nyuaj los xyuas kom meej kev ruaj ntseg thiab du kev sib txuas lus mus sij hawm ntev kev sib txuas lus thiab lub hwj chim nyob rau hauv cov ntaub ntawv ntawm hluav taws.
Magnesia ntxhia insulated hluav taws-resistant cables yuav tsum tau ntshuam cov khoom tshwj xeeb, tus nqi yog kim heev, thiab lub peev peev yog loj;Tsis tas li ntawd, lub tsho sab nrauv ntawm lub cable no yog tag nrho cov tooj liab, yog li tus nqi ntawm cov khoom no kuj ua rau cov khoom no kim;ntxiv rau hom kab no muaj cov kev cai tshwj xeeb hauv cov txheej txheem ntawm kev tsim khoom, kev ua haujlwm, kev thauj mus los, kab nteg, kev teeb tsa thiab siv, thiab nws yog qhov nyuaj rau kev nrov thiab siv nws ntawm qhov loj, tshwj xeeb tshaj yog nyob rau hauv cov vaj tse.
Post lub sij hawm: Mar-16-2023