Cov kav dej tooj liab muaj kev nyab xeeb thiab txhim khu kev qha
Cov kav dej tooj liab sib xyaw ua ke qhov zoo ntawm cov kav hlau hlau thiab cov kav dej tsis yog hlau. Lawv nyuaj dua li cov kav dej yas thiab muaj lub zog siab ntawm cov hlau dav dav (lub zog ntawm cov kav dej txias txias yog sib npaug rau cov kav hlau steel nrog tib phab ntsa tuab); Lawv yooj yim rau khoov dua li cov hlau dav dav, muaj qhov zoo toughness thiab siab ductility, thiab muaj kev co zoo heev, cuam tshuam tsis kam thiab Frost heave kuj.
Cov kav dej tooj liab tuaj yeem tiv taus qhov txias txias thiab kub kub, nrog rau ntau yam kev siv los ntawm -196 degrees txog 250 degrees, thiab tuaj yeem hloov kho qhov kub thiab txias (-high temperature-low temperature-high temperature-). Qhov kev ua tau zoo yuav tsis txo qis vim kev siv mus ntev thiab kev hloov pauv kub, thiab yuav tsis tsim kev laus. Qhov no yog dhau qhov ncav cuag ntawm cov kav dej zoo tib yam.
Lub linear expansion coefficient ntawm tooj liab kav yog me me, uas yog 1/10 ntawm cov yas kav, thiab nws yog qaug zog-resistant. Thaum qhov kub thiab txias hloov, yuav tsis muaj ntau thermal expansion thiab contraction, uas yuav ua rau muaj kev ntxhov siab qaug zog tawg.
Cov yam ntxwv no ua rau cov kav dej tooj liab muaj txiaj ntsig zoo hauv cov chaw txias. Nyob rau hauv qhov chaw txias heev, qhov kub ntawm qhov sib txawv thaum sawv ntxov thiab yav tsaus ntuj yog qhov loj, thiab cov kab sib txuas ntawm cov kav dej zoo tib yam yog qhov loj thiab lub zog tsawg, uas yooj yim heev los tsim kev ntxhov siab qaug zog tawg los ntawm thermal expansion thiab contraction. Qee qhov hais tias tsis yog-nkig ntawm -20 degrees, tab sis qhov tseeb lawv tsis tuaj yeem tiv taus kev ua haujlwm siab thiab muaj lub neej ua haujlwm luv luv, uas tsis muaj qhov tseem ceeb. Txawm hais tias kev ntsuas rwb thaiv tsev tuaj yeem raug coj los siv, nws yog qhov yuav tsum tau ntsib qhov kub qis thaum lub sijhawm thauj mus los, khaws cia thiab kev teeb tsa, thaum qhov kev ua haujlwm ntawm cov kav dej tooj liab zoo ib yam ntawm -183 degrees thiab chav tsev kub.
Copper yeeb nkab kev tu cev thiab kev noj qab haus huv
Cov kav dej tooj liab tsis muaj ntau yam kev hloov kho, cov khoom siv ntxiv, thiab lwm yam tshuaj lom neeg ntawm cov kav dej yas.
Cov kev tshawb fawb lom neeg tau pom tias E. coli nyob rau hauv cov dej tsis tuaj yeem txuas ntxiv mus txuas ntxiv hauv cov kav dej tooj liab; Ntau tshaj 99% ntawm cov kab mob hauv dej raug tua tag nrho tom qab nkag mus rau hauv cov kav dej tooj liab rau 5 teev.
Cov yeeb nkab tooj liab muaj cov qauv tuab heev thiab yog impermeable. Txawm hais tias nws yog roj, kab mob, kab mob, oxygen, ultraviolet rays thiab lwm yam teeb meem, lawv tsis tuaj yeem dhau los ntawm nws thiab ua rau cov dej tsis zoo.
Tsis tas li ntawd, cov kav dej tooj liab tsis muaj cov tshuaj ntxiv thiab yuav tsis hlawv kom tso cov pa phem uas ua rau neeg tuag taus. Kev rov ua dua ntawm tooj liab yog qhov tsim nyog rau kev tiv thaiv ib puag ncig thiab yog cov khoom siv ntsuab rau kev tsim kho kom ruaj khov.
Cov kav dej tooj liab muaj lub zog sib txuas
Muaj ntau ntau hom yeeb nkab nyob rau hauv kev ua lag luam, tab sis feem ntau ntawm cov interface fittings yog ua los ntawm tooj liab. Txawm hais tias qee qhov yeeb nkab tsis siv tooj liab fittings, yuav tsum muaj tooj liab haum ntawm qhov sib txuas nrog lub faucet. Txawm li cas los xij, yog tias cov yeeb nkab tooj liab txuas nrog rau lwm cov kav dej, lub cev thiab lub zog ntawm cov kav dej thiab cov fittings sib txawv heev thaum lawv tau rhuab thiab sib cog lus, yog li qhov ruaj khov ntawm kev sib txuas yuav raug rau cov teeb meem ntxiv. Yog li ntawd, lub firmness ntawm cov yeeb nkab tooj liab txuas nrog cov tooj liab fittings yuav zoo heev.
