Ukadaulo wopanga magalasi wokhala ndi zinthu zotetezera ku kuwonongeka kwa makina
Galasi ndi chinthu chodziwika bwino m'moyo wamakono: chimagwiritsidwa ntchito m'mawindo a nyumba, nyumba zazitali, zowonetsera mafoni, magalimoto, komanso zida zowunikira. Koma kumbuyo kwa mawonekedwe ake owoneka bwino komanso "osalimba", galasi limatha kupangidwa kuti likhale lolimba komanso lotetezeka. Kukula kwa ukadaulo wopanga magalasi tsopano sikungoyang'ana kokha kukongola ndi kuwonekera bwino, komanso kuteteza kuwonongeka kwa makina monga kugunda, kukanda, kupanikizika, ndi kusintha kwadzidzidzi kwa katundu. Kudzera mu kuphatikiza kwa uinjiniya wa kapangidwe kake, njira zotenthetsera, mankhwala a mankhwala, ndi mapangidwe a kapangidwe ka magawo, galasi limatha kukwaniritsa kukana komwe kumakwaniritsa zofunikira za mafakitale omwe ali pachiwopsezo chachikulu.
1. N’chifukwa chiyani galasi limawonongeka mosavuta ndi makina?
Galasi kwenikweni ndi chinthu chosaoneka bwino (chopanda kapangidwe kake ka kristalo). Kapangidwe kameneka kamapereka kuwala kowala kwambiri, komanso kumapangitsa galasi kukhala losavuta kukhudzidwa ndi zinthu zazing'ono pamwamba pake. Kukanda pang'ono, ma pores ang'onoang'ono, kapena ming'alu yaying'ono kungayambitse kusweka kwa galasi pamene likukhudzidwa ndi mphamvu ya makina. Popeza galasi silimasweka bwino poyerekeza ndi zitsulo, ming'alu imatha kufalikira mofulumira ndikuyambitsa kusweka mwadzidzidzi.
Kuwonongeka kwa galasi ndi makina nthawi zambiri kumagawidwa m'njira zingapo:
– Kukanda (kukanda/kukanda): nthawi zambiri kumachokera ku tinthu tolimba monga mchenga, fumbi la quartz, kapena kukhudzana ndi zinthu zachitsulo.
– Kusweka kwa galimoto: mwachitsanzo, kumenyedwa ndi mwala pamene galimoto ikuyenda, kapena chipangizocho chikugwetsedwa.
– Kusweka chifukwa cha kupindika kapena kupsinjika: nthawi zambiri kumachitika m'magalasi akuluakulu kapena magalasi omangidwa.
- Kulephera chifukwa cha kupsinjika ndi kutentha komwe kwatsala: kusintha kwa kutentha mwachangu kumatha kuipitsa mavuto omwe ali mkati mwa galasi.
Pofuna kuthana ndi vutoli, ukadaulo wamakono wapanga magalasi omwe amatha kuthana ndi kupsinjika, kuletsa kufalikira kwa ming'alu, komanso kuteteza malo kuti asawonongeke.
2. Magawo oyambira opangira magalasi: maziko abwino a makina
Tisanakambirane za zinthu zoteteza, ubwino wa galasi umadalira kwambiri njira yoyambirira yopangira. Kawirikawiri, galasi lopangidwa ndi silicate limapangidwa kuchokera ku chisakanizo cha silica (SiO₂), soda ash (Na₂CO₃), ndi limestone (CaCO₃), pamodzi ndi zowonjezera zina kuti zisinthe kukhuthala, mtundu, kapena mawonekedwe a makina. Chisakanizocho chimasungunuka kutentha kwambiri (pafupifupi 1.400–1.600°C), kenako chimapangidwa kukhala mapepala, mabotolo, kapena mawonekedwe ena.
Pa galasi lopangidwa ndi mapulani, njira yodziwika kwambiri ndi galasi loyandama, komwe galasi losungunuka limayendetsedwa pamwamba pa chitini chosungunuka, zomwe zimapangitsa kuti pepala losalala likhale lathyathyathya komanso losalala. Malo osalala awa ndi ofunikira chifukwa amachepetsa zolakwika pamwamba, ndikuwonjezera kukana kwa ming'alu. Pambuyo pake, galasi nthawi zambiri limalowetsedwa (kuzizira kolamulidwa) kuti lichepetse kupsinjika kwamkati.
Komabe, magalasi oyandama wamba sali olimba mokwanira kuti agwiritsidwe ntchito masiku ano. Apa ndi pomwe ukadaulo wolimbitsa umafunika.
3. Kulimbitsa kutentha: galasi lofewa komanso lolimba ndi kutentha
Njira imodzi yomwe imagwiritsidwa ntchito kwambiri powonjezera mphamvu ya makina ndi kutenthetsa, kapena kulimbitsa kutentha. Njirayi imaphatikizapo kutenthetsa galasi kufika pafupi ndi kutentha kwake kofewa kenako nkuliziziritsa mofulumira (kulizimitsa) pogwiritsa ntchito mpweya. Kuziziritsa mofulumira kumeneku kumapangitsa kuti pamwamba pa galasi pakhale kolimba mkati, zomwe zimapangitsa kuti:
- Kupsinjika kwakukulu pamwamba
- Kupsinjika kwamphamvu mkati mwa mtima
Kupsinjika kwamphamvu pamwamba kumakhala kopindulitsa chifukwa ming'alu nthawi zambiri imayambira pamwamba. Kuti muwonjezere ming'alu, kupsinjika kwamphamvu kumafunika; komabe, chifukwa pamwamba pake pali kupsinjika, ming'alu imakhala yovuta kutsegula. Chifukwa chake, galasi lofewa limatha kukhala ndi mphamvu yopindika kangapo kuposa galasi wamba, komanso kukana kugwedezeka kwambiri.
Palinso galasi lolimbikitsidwa ndi kutentha, njira yofanana koma yozizira pang'onopang'ono kuposa galasi lofewa. Galasi lamtunduwu ndi lolimba kuposa galasi lofewa, koma silili lolimba ngati galasi lofewa. Ubwino wake ndi kusokonekera pang'ono kwa kuwala kuposa galasi lofewa, zomwe zimapangitsa kuti likhale loyenera kumanga ma facade omwe amafunikira mawonekedwe apamwamba.
Poganizira za chitetezo, galasi lofewa lilinso ndi mawonekedwe apadera osweka: limasweka m'zidutswa zazing'ono, zosapsa kwambiri poyerekeza ndi zidutswa zazikulu. Komabe, pa ntchito zomwe zimafuna kuti galasi likhalebe lolimba litasweka, ukadaulo wa lamination nthawi zambiri umasankhidwa.
4. Galasi lopaka utoto: limakana kusweka ndipo limawonjezera kukana kwa kugwedezeka
Galasi lopaka utoto limapangidwa polumikiza mapepala awiri kapena kuposerapo a galasi pamodzi pogwiritsa ntchito gawo la polima (lolumikizana) monga PVB (polyvinyl butyral), EVA, kapena ionoplast (monga SGP). Gawoli limagwira ntchito ngati "guluu" komanso limatenga mphamvu ya impact.
Ubwino waukulu wa galasi lopaka utoto poteteza makina ndi:
- Zimateteza zidutswa kuti zisabalalike, zomwe zimawonjezera chitetezo.
- Zimawonjezera kukana kugwedezeka, chifukwa mphamvu imatengedwa ndi interlayer.
– Imaletsa kulowa, kotero nthawi zambiri imagwiritsidwa ntchito mu galasi loteteza, galasi loletsa kuwononga, komanso magalasi osagwidwa ndi zipolopolo (okhala ndi mawonekedwe ovuta kwambiri).
Mu mapangidwe amakono, galasi lokhala ndi laminated nthawi zambiri limaphatikizidwa ndi galasi lokhala ndi laminated: mwachitsanzo, mapepala awiri a galasi lokhala ndi laminated pamodzi. Kuphatikiza kumeneku kumapanga gulu lomwe limakhala lolimba komanso lotetezeka ngati litawonongeka.
5. Kulimbitsa mankhwala: galasi lolimba popanda kupotoza kwakukulu.
Pa magalasi opyapyala, monga zowonetsera mafoni, mawotchi, ndi zida zowunikira, kulimbitsa kutentha nthawi zina sikoyenera chifukwa cha chiopsezo cha kusokonekera kapena zolepheretsa kukula. Yankho lake ndi kulimbitsa mankhwala kudzera mu kusinthana kwa ma ion.
Mu njira iyi, galasi (nthawi zambiri aluminosilicate) imamizidwa mu mchere wosungunuka, monga potaziyamu nitrate (KNO₃), pa kutentha kwina. Ma sodium ion (Na⁺) pamwamba pa galasi amasinthidwa ndi ma potassium ion akuluakulu (K⁺). Chifukwa malo mu kapangidwe ka galasi ndi ochepa, kulowetsedwa kwa ma ion akuluakulu kumabweretsa kupsinjika kwakukulu pamwamba, kofanana ndi momwe zimakhalira ndi kutentha koma ndi kulamulira bwino kwambiri komanso koyenera galasi lopyapyala.
Ubwino wa kulimbitsa mankhwala:
- Kukana kusweka chifukwa cha mikwingwirima yaying'ono kumawonjezeka kwambiri.
– Pamwamba pake pamakhalabe posalala komanso poyera.
- Yoyenera mawonekedwe ovuta komanso makulidwe owonda.
Kulimbitsa mankhwala kumeneku ndiye maziko a zoteteza zambiri zamakono.
6. Ukadaulo wokutira: chitetezo ku mikwingwirima ndi kukwawa
Kuwonongeka kwa makina sikuti nthawi zonse kumabweretsa kusweka; nthawi zina kumabweretsa kuchepa kwa ubwino chifukwa cha kukanda pamwamba. Pachifukwa ichi, zokutira zosiyanasiyana zapangidwa kuti ziwonjezere kuuma kwa pamwamba ndikuchepetsa kukangana.
Njira zina zodziwika bwino:
– Chophimba cholimba chopangidwa ndi silika kapena chitsulo chomwe chingawonjezere kukana kwa kukwawa.
– Chophimba chachilengedwe choletsa kukwawa (hybrid sol-gel) chomwe chimapereka gawo lolimba koma lomveka bwino.
- Zophimba zoletsa kuwunikira komanso zoletsa matope zimagwirizanitsidwa kuti zisunge magwiridwe antchito a kuwala pomwe zimachepetsa chiopsezo cha kukwawa chifukwa choyeretsa mobwerezabwereza.
Njira zophikira zimasiyana, monga kupaka utoto (PVD), CVD, kapena sol-gel dip coating, kutengera makulidwe, mphamvu yomatirira, ndi ndalama zopangira.
7. Uinjiniya wa kapangidwe kake: galasi lolimba kwambiri kuchokera mkati
Kuwonjezera pa kukonza pamwamba, kapangidwe ka galasi kakhoza kukonzedwa bwino kuti kawongolere mphamvu ya makina. Mwachitsanzo, galasi la aluminosilicate limapereka kuphatikiza kwabwino kwa mphamvu ndi kukhazikika kwa mankhwala. Kuonjezera ma oxide ena kungapangitse kuti netiweki ya galasi ikhale yolimba, kuchepetsa chizolowezi chosweka, kapena kusintha momwe imayankhira ku njira zosinthira ma ion.
Pamlingo wa mafakitale, uinjiniya wa kapangidwe ka zinthu nthawi zonse umaphatikizapo kusinthana: magalasi olimba kwambiri amatha kukhala ovuta kuwakonza, amafunika kutentha kwambiri, kapena okwera mtengo kwambiri. Chifukwa chake, opanga nthawi zambiri amalinganiza magwiridwe antchito amakina ndi luso lopanga zinthu zambiri.
8. Kapangidwe ndi kuwongolera khalidwe: kudziwa zinthu zomwe zimapangitsa kuti munthu asawonongeke
Ukadaulo woteteza makina sukhudza zipangizo zokha, komanso kapangidwe ndi kuwongolera kupanga:
- Kuwongolera zolakwika pamwamba: njira zodulira, kupukuta ndi kupukuta m'mphepete ndizofunikira chifukwa ming'alu nthawi zambiri imayamba m'mphepete mwa galasi.
- Ubwino wa m'mphepete (kumaliza m'mphepete): m'mphepete zopukutidwa ndi zokonzedwa bwino zimawonjezera mphamvu yowoneka bwino ya gulu lagalasi.
- Kuyesa kukhudzidwa ndi kugawikana kwa magalasi: onetsetsani kuti magalasi ofunda asweka motsatira miyezo yachitetezo.
- Kuyesa kukanirira kwa laminate ndi kukana kukalamba: onetsetsani kuti interlayer si yosavuta kuisintha kukhala yachikasu kapena yosiyana.
Mu nyumba ndi magalimoto, kapangidwe ka zomangira kamagwiranso ntchito: ma gasket oyenera, zotsekera ndi makina omangira mafelemu amatha kuletsa kuchuluka kwa kupsinjika komwe kumabweretsa ming'alu.
9. Mapulogalamu: kuyambira pa zomangamanga mpaka zida zonyamulidwa ndi manja
Galasi lokhala ndi chitetezo chamakina likugwiritsidwa ntchito kwambiri:
- Nyumba: facade, denga, skylight, mpanda wagalasi, ndi pansi pagalasi pogwiritsa ntchito kutentha/laminated kuti zikhale zotetezeka.
– Magalimoto: magalasi amoto nthawi zambiri amakhala ndi laminated (kuti asasweke), pomwe mawindo am'mbali nthawi zambiri amakhala otentha.
– Zamagetsi: galasi lopyapyala limalimbikitsidwa ndi mankhwala ndipo limakutidwa ndi utoto wosakanda.
– Zamakampani ndi chitetezo: galasi losaphulika kapena losalowa m'malo mwake limagwiritsa ntchito mawonekedwe apamwamba a multilayer ndi interlayer.
Mapeto
Ukadaulo wopanga magalasi woteteza ku kuwonongeka kwa makina ndi zotsatira za kuphatikiza magawo ambiri: chemistry ya zinthu, uinjiniya wa njira, kapangidwe ka kapangidwe ka zinthu, ndi kuwongolera khalidwe. Kulimbitsa kutentha (kutenthetsa/kulimbitsa kutentha) kumawonjezera kukana kukhudzidwa ndi katundu, kupondereza kumaonetsetsa kuti zinthuzo ndi zotsalira sizikufalikira, kulimbitsa mankhwala kumalimbitsa pamwamba pa galasi lopyapyala bwino, pomwe zokutira ndi uinjiniya wa kapangidwe kake zimawonjezera kukana kukanda ndi ming'alu yaying'ono. Ndi luso lopitilira, galasi sililinso chinthu chowoneka bwino, koma ndi gawo lodalirika kwambiri la kapangidwe ka zinthu komanso loteteza pazosowa zosiyanasiyana zamakono.
