1. Cov yeeb nkab tooj liab yog ruaj khov
Cov khoom siv tshuaj lom neeg ntawm tooj liab yog qhov ruaj khov, thiab nws sib xyaw ua ke txias tsis kam, kub tsis kam, siab tsis kam, corrosion kuj thiab hluav taws kub tsis kam (lub melting point ntawm tooj liab yog siab li 1083 degrees Celsius), uas tuaj yeem siv tau ntev hauv kev sib txawv. ib puag ncig. Cov kav dej tooj liab tuaj yeem kav ntev npaum li lub tsev, lossis ntev dua.
2. Lub raj 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 hlau tsis yog hlau. Nws yog ib qho nyuaj tshaj li cov yeeb nkab yas thiab muaj lub zog siab ntawm cov hlau zoo tib yam (lub zog ntawm cov yeeb nkab txias txias yog piv rau cov yeeb nkab steel ntawm tib phab ntsa tuab). Nws yog qhov yooj yim rau khoov dua li cov hlau zoo tib yam, muaj qhov zoo toughness thiab siab ductility, thiab muaj kev co zoo heev, kev cuam tshuam tsis kam thiab te heave kuj.
Lub raj tooj liab tuaj yeem tiv taus qhov txias txias thiab kub kub heev, nrog rau ntau yam kev siv los ntawm -196 degrees mus rau 250 degrees, thiab hloov mus rau qhov kub thiab txias (ib qho kub, ib qho kub, ib qho kub kub), thiab nws qhov kev ua tau zoo yuav tsis cuam tshuam los ntawm kev siv mus ntev thiab kev hloov pauv kub. Thiab qis dua, yuav tsis muaj qhov tshwm sim ntawm kev laus. Qhov no yog dhau qhov ncav cuag ntawm cov kav dej zoo tib yam.
Lub linear expansion coefficient ntawm cov yeeb nkab tooj liab yog me me, uas yog 1/10 ntawm cov yeeb nkab yas, thiab nws tuaj yeem tiv taus qaug zog. Tshaj thermal expansion thiab contraction yuav tsis ua rau muaj kev ntxhov siab qaug zog tawg thaum lub sij hawm hloov kub.
3. Kev noj qab haus huv ntawm cov yeeb nkab tooj liab
Cov yas muaj cov tshuaj ntxiv xws li "plasticizers" uas khiav dhau lub sijhawm thiab qhov kub thiab txias, ua rau tawv tawv thiab embrittlement ntawm cov yas. Cov kav dej tooj liab tsis muaj ntau yam kev hloov kho, cov khoom siv ntxiv, cov khoom siv ntxiv thiab lwm yam tshuaj lom neeg ntawm cov kav dej yas.
Cov kev tshawb fawb lom neeg tau pom tias Escherichia coli hauv cov dej tsis tuaj yeem tsim dua tshiab hauv cov kav dej tooj liab; Ntau tshaj 99 feem pua ntawm cov kab mob hauv dej raug tua tag nrho tom qab nkag mus rau hauv cov kav dej tooj liab rau 5 teev.
Lub raj tooj liab raj muaj zog thiab tsis yooj yim. Cov khoom tsis zoo xws li roj, kab mob, kab mob, cov pa oxygen thiab ultraviolet rays tsis tuaj yeem hla nws thiab ua paug dej.
Tsis tas li ntawd, cov kav dej tooj liab tsis muaj cov tshuaj ntxiv, thiab lawv yuav tsis hlawv thiab tso cov pa roj carbon monoxide 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.
4. Kev sib txuas muaj zog ntawm cov kav dej tooj liab
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 tuaj yeem siv tooj liab fittings, nws tseem xav tau 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, vim yog cov khoom sib txawv ntawm cov kav dej thiab cov khoom siv sib txawv, cov khoom siv lub cev thiab cov khoom siv thaum lub sij hawm thermal expansion thiab contraction yog txawv heev, thiab kev ruaj khov ntawm kev sib txuas yuav raug rau ntxiv. kev sib tw. Yog li ntawd, thaum cov yeeb nkab tooj liab txuas nrog cov tooj liab fittings, lub firmness yuav zoo heev.
5. Zoo rau kev noj qab haus huv
Cov kav dej tooj liab zoo rau kev noj qab haus huv, thiab cov kav dej tooj liab txuag dej, tiv thaiv kev ua qias tuaj thiab ua kom tsis muaj menyuam. Thaum xaiv lossis kho lub tsev, ob peb tus neeg thab nrog cov kav dej ntawm lub tsev. Qhov tseeb, cov khoom siv ntawm cov kav dej yuav cuam tshuam rau tib neeg txoj kev noj qab haus huv.
