Copper tubes, tseem hu ua liab tooj liab raj, yog nias thiab kos seamless hlab.
Cov raj tooj liab yog lub teeb hauv qhov hnyav, muaj cov thermal conductivity zoo, thiab lub zog kub qis. Lawv feem ntau siv los tsim cov khoom siv hluav taws xob sib pauv (xws li condensers, thiab lwm yam). Lawv kuj tseem siv los sib sau cov kav dej kub qis hauv cov khoom siv oxygen. Cov raj tooj liab uas muaj cov kab me me feem ntau yog siv los thauj cov kua uas muaj zog (xws li lub tshuab lubrication, roj siab tshuab, thiab lwm yam) thiab cov ntsuas ntsuas siab rau cov twj paj nruag, thiab lwm yam.
Cov raj tooj liab yog thawj qhov kev xaiv rau cov neeg cog lus niaj hnub los txhim kho cov kav dej kais dej, cua sov thiab cua txias kav hauv txhua lub tsev lag luam.
1. Vim tias cov raj tooj liab yog ib qho yooj yim rau kev ua thiab txuas, lawv tuaj yeem txuag cov ntaub ntawv thiab tag nrho cov nqi thaum lub sij hawm installation, muaj kev ruaj ntseg zoo thiab kev ntseeg siab, thiab tuaj yeem txuag kev txij nkawm.
2. Tooj yog lub teeb. Rau twisted threaded kav ntawm tib lub puab kab uas hla, tooj liab raj tsis xav tau lub thickness ntawm ferrous hlau. Thaum ntsia, cov raj tooj liab muaj cov nqi tsheb thauj mus los qis dua, kev saib xyuas yooj yim dua, thiab siv qhov chaw tsawg dua.
3. Cov tooj liab tuaj yeem hloov cov duab. Vim tias cov raj tooj liab tuaj yeem khoov thiab deform, feem ntau lawv tuaj yeem ua rau hauv lub luj tshib thiab cov pob qij txha, thiab kev khoov du tso cai rau cov raj tooj liab khoov ntawm txhua lub kaum sab xis.
4. Tooj yog yooj yim rau kev txuas.
5. tooj liab muaj kev nyab xeeb. Nws tsis xau, tsis txhawb combustion, tsis tsim cov pa phem, thiab yog corrosion-resistant.
Cov kav dej tooj liab tiv taus qhov kub thiab txias thiab tuaj yeem siv rau ntau qhov chaw. Hauv kev sib piv, qhov tsis zoo ntawm ntau lwm cov kav dej yog pom tseeb. Piv txwv li, galvanized steel kav, uas feem ntau siv nyob rau hauv cov tsev nyob yav dhau los, yog yooj yim heev rau xeb. Tom qab siv sijhawm luv luv, cov teeb meem xws li yellowing ntawm kais dej thiab txo cov dej ntws yuav tshwm sim. Qee cov ntaub ntawv yuav txo tau lawv lub zog sai ntawm qhov kub thiab txias, uas yuav ua rau muaj kev phom sij tsis zoo thaum siv cov kav dej kub. Lub melting point ntawm tooj liab yog siab li 1083 degrees Celsius, thiab qhov kub ntawm cov dej kub system yog negligible rau tooj liab kav. Cov kws tshawb fawb tshawb fawb tau tshawb pom cov kav dej tooj liab hnub rov qab 4,500 xyoo hauv Egyptian pyramids, uas tseem siv niaj hnub no.
