Chiyambi
M'mabwalo a ndege, zipatala, malo ogulitsira zinthu, sitima zapansi panthaka, nyumba zazitali komanso malo ena ofunikira, kuti anthu akhale otetezeka pakagwa moto komanso pakagwa ntchito zadzidzidzi, ndikofunikira kugwiritsa ntchito waya ndi zingwe zosagwira moto zomwe zimalimbana bwino ndi moto. Chifukwa cha chitetezo cha anthu chomwe chikuwonjezeka, kufunika kwa zingwe zosagwira moto kukukulirakulira, ndipo madera ogwiritsira ntchito akuchulukirachulukira, mtundu wa waya ndi zingwe zosagwira moto ukuwonjezekanso.
Waya ndi chingwe zosagwira moto zimatanthauza waya ndi chingwe zomwe zimatha kugwira ntchito mosalekeza mu mkhalidwe wotchulidwa pamene zikuyaka pansi pa moto ndi nthawi inayake, mwachitsanzo kuthekera kosunga umphumphu wa mzere. Waya ndi chingwe zosagwira moto nthawi zambiri zimakhala pakati pa kondakitala ndi wosanjikiza woteteza komanso wosanjikiza wosanjikiza wotsutsa, wosanjikiza wosanjikiza nthawi zambiri umakhala tepi ya mica yosagwira moto yokhala ndi zigawo zambiri yozunguliridwa mozungulira kondakitala. Ikhoza kusunthidwa kukhala chinthu cholimba, cholimba choteteza chomwe chimalumikizidwa pamwamba pa kondakitala ikayaka moto, ndipo imatha kuonetsetsa kuti chingwecho chikugwira ntchito bwino ngakhale polima yomwe yayikidwa pamoto yayaka. Chifukwa chake, kusankha tepi ya mica yosagwira moto kumachita gawo lofunikira kwambiri pa ubwino wa mawaya ndi zingwe zosagwira moto.
1 Kapangidwe ka matepi a mica osasunthika ndi mawonekedwe a kapangidwe kalikonse
Mu tepi ya mica yokana, pepala la mica ndiye chotetezera magetsi komanso zinthu zokana, koma pepala la mica lokha silili ndi mphamvu zambiri ndipo liyenera kulimbitsa ndi zinthu zolimbitsa kuti likhale lolimba, ndipo kuti pepala la mica ndi zinthu zolimbitsa zikhale bwino, munthu ayenera kugwiritsa ntchito guluu. Chifukwa chake, zinthu zopangira tepi ya mica yokana zimapangidwa ndi pepala la mica, zinthu zolimbitsa (nsalu yagalasi kapena filimu) ndi guluu wa resin.
1. Pepala limodzi la Mica
Pepala la Mica limagawidwa m'mitundu itatu malinga ndi momwe mchere wa mica umagwiritsidwira ntchito.
(1) Pepala la Mica lopangidwa ndi mica yoyera;
(2) Pepala la Mica lopangidwa ndi golide wa mica;
(3) Pepala la Mica lopangidwa ndi mica yopangidwa ngati zinthu zopangira.
Mitundu itatu iyi ya pepala la mica ili ndi makhalidwe ake enieni.
Mu mitundu itatu ya mapepala a mica, mphamvu zamagetsi za pepala loyera la mica kutentha kwa chipinda ndi zabwino kwambiri, pepala la mica lopangidwa ndi lachiwiri, pepala la mica lagolide ndi loipa. Mphamvu zamagetsi pa kutentha kwakukulu, pepala la mica lopangidwa ndi labwino kwambiri, pepala la mica lagolide ndi lachiwiri labwino kwambiri, pepala loyera la mica ndi loipa. Mica yopangidwa ndi mica ilibe madzi a kristalo ndipo ili ndi malo osungunuka a 1,370°C, kotero imakhala yolimba kwambiri pa kutentha kwakukulu; mica yagolide imayamba kutulutsa madzi a kristalo pa 800°C ndipo imakhala yolimba kwambiri pa kutentha kwakukulu; mica yoyera imatulutsa madzi a kristalo pa 600°C ndipo imakhala yolimba kwambiri pa kutentha kwakukulu. Mica yagolide ndi mica yopangidwa nthawi zambiri zimagwiritsidwa ntchito popanga matepi a mica okana okhala ndi mphamvu zabwino zokana.
1. 2 Zipangizo zolimbikitsira
Zipangizo zolimbitsa nthawi zambiri zimakhala nsalu yagalasi ndi filimu yapulasitiki. Nsalu yagalasi ndi ulusi wopitilira wa ulusi wagalasi wopangidwa ndi galasi lopanda alkali, lomwe liyenera kuluka. Filimuyi imatha kugwiritsa ntchito mitundu yosiyanasiyana ya filimu yapulasitiki, kugwiritsa ntchito filimu yapulasitiki kungachepetse ndalama ndikuwonjezera kukana kwa kukwawa kwa pamwamba, koma zinthu zomwe zimapangidwa panthawi yoyaka siziyenera kuwononga kutenthetsa kwa pepala la mica, ndipo ziyenera kukhala ndi mphamvu zokwanira, zomwe zimagwiritsidwa ntchito kwambiri pano ndi filimu ya polyester, filimu ya polyethylene, ndi zina zotero. Ndikoyenera kunena kuti mphamvu yokoka ya tepi ya mica imagwirizana ndi mtundu wa zinthu zolimbitsa, ndipo magwiridwe antchito okoka a tepi ya mica yokhala ndi nsalu yolimbitsa galasi nthawi zambiri amakhala okwera kuposa a tepi ya mica yokhala ndi filimu yolimbitsa. Kuphatikiza apo, ngakhale mphamvu ya IDF ya matepi a mica kutentha kwa chipinda imagwirizana ndi mtundu wa pepala la mica, imagwirizananso kwambiri ndi zinthu zolimbitsa, ndipo nthawi zambiri mphamvu ya IDF ya matepi a mica okhala ndi filimu yolimbitsa kutentha kwa chipinda imakhala yayikulu kuposa ya matepi a mica opanda filimu yolimbitsa.
1. 3 Zomatira za utomoni
Guluu wa resin umaphatikiza pepala la mica ndi zinthu zolimbitsa kukhala chimodzi. Guluu uyenera kusankhidwa kuti ugwirizane ndi mphamvu yayikulu yolumikizira pepala la mica ndi zinthu zolimbitsa, tepi ya mica imakhala ndi kusinthasintha kwina ndipo siitentha ikayaka. Ndikofunikira kuti tepi ya mica isatenthe ikayaka, chifukwa imakhudza mwachindunji kukana kwa kutenthetsa kwa tepi ya mica ikayaka. Popeza guluu, polumikiza pepala la mica ndi zinthu zolimbitsa, limalowa m'mabowo ndi ma micropores a zonse ziwiri, limakhala njira yoyendetsera magetsi ngati litayaka ndi kutentha. Pakadali pano, guluu wogwiritsidwa ntchito kwambiri pa tepi ya mica yotsutsa ndi guluu wa silicone resin, womwe umapanga ufa woyera wa silica ukayaka ndipo uli ndi mphamvu zabwino zotetezera magetsi.
Mapeto
(1) Ma tepi a mica oletsa kuuma nthawi zambiri amapangidwa pogwiritsa ntchito mica yagolide ndi mica yopangidwa, zomwe zimakhala ndi mphamvu zamagetsi zabwino kwambiri kutentha kwambiri.
(2) Mphamvu yokoka ya matepi a mica imagwirizana ndi mtundu wa zinthu zolimbitsa, ndipo mphamvu yokoka ya matepi a mica okhala ndi nsalu yolimbitsa galasi nthawi zambiri imakhala yokwera kuposa ya matepi a mica okhala ndi filimu yolimbitsa.
(3) Mphamvu ya IDF ya matepi a mica pa kutentha kwa chipinda imagwirizana ndi mtundu wa pepala la mica, komanso ndi zinthu zolimbikitsira, ndipo nthawi zambiri imakhala yokwera kwambiri pa matepi a mica okhala ndi filimu yolimbikitsira kuposa omwe alibe.
(4) Zomatira za matepi a mica osapsa ndi moto nthawi zambiri zimakhala zomatira za silicone.
Nthawi yotumizira: Juni-30-2022