Uphahla: I udini lophahla, Khetha Amanqaku

Uphahla - liqokobhe kophahla, lukhusela ukwakha nxamnye kwii kwemvula. Lephahla kufuneka angahlalwa manzi, conductivity thermal eliphantsi ukumelana iikhemikhali ndlongondlongo kunye kwezulu. Kuba mveliso i nophahla ukusebenzisa izinto ezahlukeneyo - organic, ebuntsimbi okanye iiminerali. Ngalunye uhlobo nophahla ezahlukeneyo yokusebenza kunye nenkonzo ubomi, ezinye iminyaka 5-7, yaye nayiphi na 100. Cinga ngohlobo ngamnye uphahla.

Organic.

zokwakha uphahla Data ezaziwa kweenkuni yamandulo, iindiza, ngamaxolo, kwakunye nezinto mihla - umxube itha-Polymer, ezityikitywe izinto, asphalt, kunye nezinye ipholima.

kwizazi:

• ke ezilula.

bendlela:

• okwanamhlanje ukuxhathisa yelanga eyingozi neoksijini,
• ukuguga fast,
• ukwazi ukuba uyaguga,
• kakhulu lula.

Ubomi inkonzo seminyaka emi-5 ukuya kwi-30.

Mineral.

Le iqela elikhulu, nto leyo equka isileyiti tile, ithayile yodongwe kunye nesamente-isanti, sheets asbestos-isamente (asbestos) kunye iithayile. Ezi zokwakha uphahla zibizwa ngokuba zendalo zokusebenza.

kwizazi:

• okuhlala
• ethembekileyo
• musa ukubola,
• akafuni phemba,
• ibhujiswe kwelanga.

bendlela:

• Mna-ethe kakhulu lobushushu, ingakumbi uluhlu degrees zero,
• ube nelitye enkulu,
• hayi wayedla ngenxa yeendleko eziphezulu kakhulu.

Metal.

Ezi ziquka metal sheets incence, intsimbi, nophahla, izinyithi ezingezo-ayoni. Ngokuba nobhedu mveliso yabo, i-aluminiyamu, intsimbi kwalenza, simnyama, kwakunye aluminiyamu zayo, ezo zenziwe izinto ivanishi, lacquer, ipeyinti, Polymer. sheet nobhedu kakhulu elide. Ubomi kophahla yobhedu ukusuka kwiminyaka engama-50 ukuya 100.

Yiba ubunzima eliphantsi. Xa kwakusakhiwa ukusetyenziswa kwimizi-mveliso, uluntu kunye nezorhwebo metal ngqo sheets. Ngokuqhelekileyo, izixhobo uphahla uphahla kunye isithambeka ukusuka degrees 14 ukuya ku-20, amaphepha kunye Ebubanzini 0.5 - 0.8 mm, kugalelwe macala omabini kunye zinc. Ukufakelwa kobuchwepheshe sheet metal yokukhwabusha yabanjwa, ngoko oku kuthiwa komphetho kophahla ukuma. Uphahla kufuneka ixhotyiswe abasebenzi abanezakhono kuphela. Iya isanda Yaqala indawo kuhlinzwa titanium, ubhedu, i-aluminiyamu. Copper, nangona iyabiza, kodwa yimbonakaliso obalaseleyo zokwakha elide kakhulu. Metal nophahla eyenziwe ngentsimbi kwalenza, kwaye maxa wambi ezenziwe ngobhedu. Kusenokwenzeka ukuba isale i ukhuseleko umhlwa ezongezelelweyo, enye okanye ezimbini, kunokudala zokwaleka polymeric. Ukutyabeka polymeric iyamelana yelanga eyingozi neekhemikhali abe Mat okanye obukhanyayo. Metal elide ezilula, ibekwa phezu kophahla kunye ethambekeni ngaphezu degrees 12.