Mawu Oyamba
M'mabwalo a ndege, zipatala, malo ogulitsa, njanji zapansi panthaka, nyumba zapamwamba ndi malo ena ofunikira, pofuna kuonetsetsa chitetezo cha anthu pakayaka moto ndi ntchito yachibadwa ya machitidwe adzidzidzi, m'pofunika kugwiritsa ntchito waya wosagwira moto ndi chingwe ndi kukana kwambiri moto. Chifukwa chakuchulukirachulukira kwa chitetezo chamunthu, kufunikira kwa msika kwa zingwe zosagwira moto kukuchulukirachulukira, ndipo madera ogwiritsira ntchito akuchulukirachulukira, mtundu wa waya wosagwira moto komanso zofunikira za chingwe zikuchulukirachulukira.
Waya wosagwira moto ndi chingwe chimatanthawuza waya ndi chingwe chotha kugwira ntchito mosalekeza m'malo odziwika poyaka pansi pa lawi lodziwika ndi nthawi, mwachitsanzo, kuthekera kosunga umphumphu wa mzere. Waya wosagwira moto ndi chingwe nthawi zambiri amakhala pakati pa kondakitala ndi wosanjikiza kutchinjiriza kuphatikiza wosanjikiza wosanjikiza refractory, wosanjikiza wosanjikiza kawirikawiri Mipikisano wosanjikiza mica tepi mwachindunji wokutidwa mozungulira kondakitala. Ikhoza kulowetsedwa muzitsulo zolimba, zowonda zomwe zimayikidwa pamwamba pa kondakitala zikayatsidwa ndi moto, ndipo zimatha kuonetsetsa kuti mzerewo ukugwira ntchito bwino ngakhale polima pamoto wogwiritsidwa ntchito atawotchedwa. Chifukwa chake, kusankha kwa mica tepi yolimbana ndi moto kumagwira ntchito yofunika kwambiri pamtundu wa mawaya osagwira moto komanso zingwe.
1 Kapangidwe ka matepi oletsa mica ndi mawonekedwe amtundu uliwonse
Mu tepi ya refractory mica, pepala la mica ndilowona magetsi otsekemera ndi zinthu zokanizidwa, koma pepala la mica palokha liribe mphamvu ndipo liyenera kulimbikitsidwa ndi zinthu zowonjezera kuti ziwonjezeke, ndikupanga pepala la mica ndi kulimbikitsa zinthu kukhala munthu ayenera kugwiritsa ntchito zomatira. Zopangira za tepi ya refractory mica ndizopangidwa ndi pepala la mica, zolimbikitsira (nsalu yagalasi kapena filimu) ndi zomatira utomoni.
1. 1 Mica pepala
Pepala la Mica limagawidwa m'mitundu itatu molingana ndi momwe ma mineral amagwiritsidwira ntchito.
( 1) Pepala la mica lopangidwa kuchokera ku mica yoyera;
( 2) Mapepala a mica opangidwa ndi mica yagolide;
(3) Mica pepala lopangidwa ndi mica kupanga ngati zopangira.
Mitundu itatu iyi ya pepala la mica yonse ili ndi mawonekedwe ake
Mu mitundu itatu ya pepala la mica, kutentha kwa chipinda chamagetsi a pepala loyera la mica ndilobwino kwambiri, pepala la mica lopangidwa ndi lachiwiri, pepala la mica la golide ndilosauka. The magetsi katundu pa kutentha kwambiri, kupanga mica pepala ndi yabwino, golide mica pepala ndi yachiwiri yabwino, woyera mica pepala ndi osauka. Synthetic mica ilibe madzi a crystalline ndipo imakhala ndi malo osungunuka a 1,370 ° C, choncho imakhala yotsutsa kwambiri kutentha; mica ya golide imayamba kutulutsa madzi a crystalline pa 800 ° C ndipo imakhala yachiwiri yotsutsa kutentha kwakukulu; mica yoyera imatulutsa madzi a crystalline pa 600 ° C ndipo imakhala yosakanizidwa ndi kutentha kwakukulu. Mica ya golide ndi mica yopangira nthawi zambiri imagwiritsidwa ntchito kupanga matepi a mica osakanizika okhala ndi mawonekedwe abwino okana.
1. 2 Kulimbikitsa zipangizo
Kulimbitsa zipangizo zambiri galasi nsalu ndi pulasitiki filimu. Nsalu yagalasi ndi ulusi wagalasi wosalekeza wopangidwa kuchokera kugalasi lopanda mchere, lomwe liyenera kuwomba. Mufilimuyi angagwiritse ntchito mitundu yosiyanasiyana ya filimu pulasitiki, ntchito filimu pulasitiki akhoza kuchepetsa ndalama ndi kusintha abrasion kukana padziko, koma mankhwala kwaiye pa kuyaka sayenera kuwononga kutchinjiriza wa pepala mica, ndipo ayenera kukhala ndi mphamvu zokwanira, panopa ambiri ntchito ndi poliyesitala filimu, polyethylene filimu, etc. Ndikoyenera kutchula kuti mphamvu yamakokedwe ya mica tepi ikugwirizana ndi mtundu wa micape magalasi opangidwa ndi magalasi opangidwa ndi tepi ya micape ndi tepi ya tepi. kulimbitsa nthawi zambiri kumakhala kokwera kuposa kwa tepi ya mica yokhala ndi filimu yowonjezera. Kuonjezera apo, ngakhale kuti mphamvu ya IDF ya matepi a mica pa kutentha kwa firiji imagwirizana ndi mtundu wa pepala la mica, imakhalanso yogwirizana kwambiri ndi zinthu zowonjezera, ndipo kawirikawiri mphamvu ya IDF ya matepi a mica yokhala ndi filimu yowonjezera kutentha ndipamwamba kuposa ya matepi a mica popanda kulimbitsa filimu.
1. 3 Zomatira za utomoni
Zomatira utomoni zimaphatikiza pepala la mica ndi zinthu zolimbikitsira kukhala chimodzi. Zomatira ziyenera kusankhidwa kuti zigwirizane ndi kulimba kwamphamvu kwa pepala la mica ndi zinthu zolimbikitsira, tepi ya mica imakhala ndi kusinthasintha kwina ndipo simayaka ikayaka. Ndikofunikira kuti tepi ya mica isatenthe ikayaka, chifukwa imakhudza mwachindunji kukana kwa tepi ya mica ikayaka. Monga zomatira, pomangirira pepala la mica ndi kulimbikitsa zinthu, zimalowa mu pores ndi ma micropores a onse awiri, zimakhala ngati ngalande yamagetsi ngati iyaka ndi moto. Pakali pano, zomatira zomwe zimagwiritsidwa ntchito kwambiri pa tepi ya refractory mica ndi zomatira za silikoni, zomwe zimapanga ufa woyera wa silika ukayaka ndipo uli ndi mphamvu zabwino zotchinjiriza magetsi.
Mapeto
( 1) Matepi a mica okana nthawi zambiri amapangidwa pogwiritsa ntchito mica yagolide ndi mica yopangira, yomwe imakhala ndi magetsi abwino pa kutentha kwakukulu.
(2) Mphamvu yolimba ya matepi a mica imagwirizana ndi mtundu wa zinthu zolimbikitsira, ndipo mphamvu zolimba za matepi a mica okhala ndi magalasi olimbikitsa nsalu nthawi zambiri zimakhala zapamwamba kuposa za matepi a mica okhala ndi filimu yolimbitsa.
( 3) Mphamvu ya IDF ya matepi a mica pa kutentha kwa firiji imagwirizana ndi mtundu wa pepala la mica, komanso kuzinthu zowonjezera, ndipo nthawi zambiri zimakhala zapamwamba kwa matepi a mica omwe ali ndi filimu yowonjezera kuposa omwe alibe.
( 4) Zomatira za matepi a mica osagwira moto nthawi zambiri zimakhala zomatira za silikoni.
Nthawi yotumiza: Jun-30-2022