Copper tube teeb ntawm cov kav hlau thiab cov yeeb nkab tsis yog hlau zoo hauv ib qho. Nws yog ib qho nyuaj tshaj li cov yeeb nkab yas, nrog cov hlau dav dav ntawm lub zog siab (txias-taws tooj liab yeeb nkab lub zog thiab tib phab ntsa tuab ntawm cov yeeb nkab steel yog sib piv); Nws yog yooj yim dua li cov hlau dabtsi yog khoov, zoo toughness thiab siab ductility, nrog zoo heev kev co kuj, cuam tshuam kuj thiab anti-freezing thiab expansion kev ua tau zoo.
Lub raj tooj liab tuaj yeem tiv taus qhov txias txias thiab kub kub, los ntawm -196 degrees mus rau 250 degrees siv tau ntau yam, thiab hloov mus rau qhov kev hloov pauv kub (- kub siab - qis kub - kub siab -), kev siv kev ua haujlwm yuav tsis ua kev siv mus sij hawm ntev thiab kev hloov pauv kub heev. Qhov kev ua tau zoo yuav tsis raug txo vim kev siv mus sij hawm ntev thiab kev hloov pauv ntawm qhov kub thiab txias, thiab yuav tsis tsim qhov tshwm sim ntawm kev laus. Qhov no yog cov yeeb nkab zoo tib yam ua tsis tau.
Lub linear expansion coefficient ntawm tooj liab yeeb nkab yog me me, yog 1/10 ntawm cov yeeb nkab yas, tuaj yeem tiv taus qaug zog. Nyob rau hauv lub kub hloov yuav tsis tsim ntau thermal expansion thiab contraction thiab ua rau kev nyuaj siab qaug zog rupture.
Cov yam ntxwv no ua rau cov yeeb nkab tooj liab hauv daim ntawv thov ntawm qhov chaw txias muaj qhov zoo. Cov cheeb tsam txias muaj qhov sib txawv ntawm qhov kub thiab txias thaum sawv ntxov thiab yav tsaus ntuj, cov kab tawm nthuav dav coefficient ntawm cov yeeb nkab zoo tib yam thiab tsis muaj zog, yooj yim heev los tsim vim thermal expansion thiab contraction ntawm kev ntxhov siab qaug zog rupture. Qee cov neeg thov tias -20 degrees tsis yog nkig, tab sis qhov tseeb tsis tuaj yeem tiv taus kev ua haujlwm siab, thiab kev pabcuam lub neej luv luv, tsis muaj qhov tseem ceeb, txawm hais tias koj tuaj yeem siv cov thermal rwb thaiv tsev ntsuas, tab sis hauv kev thauj mus los, kev cia thiab kev teeb tsa yog qhov nyuaj kom tsis txhob ntsib qhov kub thiab txias, thiab kev ua haujlwm ntawm cov yeeb nkab tooj liab ntawm -183 degrees thiab chav tsev kub yog tib yam.
Txawm koj xav taucov kav dej tooj liab, tooj liab ,tooj liab daim hlau, peb muaj cov khoom thiab kev txawj ntse kom tau raws li koj xav tau.
