### 1. Qhov twg ntawm cov yeeb nkab ntawm cov yeeb nkab hauv qab no yuav tsum tsis txhob siv rau cov dej kub?
PVC (polyvinyl chloride) cov yeeb nkab yuav tsum tsis txhob siv rau cov dej kub vim tias nws tuaj yeem tawm tsam cov tshuaj tua hluav taws ntawm qhov kub siab tshaj 140℃f (60 degree). Hloov chaw, cov ntaub ntawv zoo li CPVC (chlorinated polyvinyl chloride), tooj liab, lossis stainless hlau tau pom zoo rau cov dej kub, raws li lawv tuaj yeem ua kom muaj kev kub ntxhov ntau.
### 2. Dab tsi yog qhov kub tshaj plaws kub ntawm cov yeeb nkab?
Qhov siab tshaj plaws ntawm cov yeeb nkab ua kom sov nyob ntawm nws ua haujlwm kua thiab tsim ua haujlwm los ntawm 150 qib mus rau 300℃F rau 572℃F). Piv txwv li, cov kav dej kub siv dej ua cov kua max tawm ib puag ncig 150℃(30)℃(572℃(572℃(572℃(572℃(572℃(572℃(572℃(572℃(57).
### 3. Kuv yuav paub tau li cas yog tias kuv cov pa yeeb kub dhau?
Koj tuaj yeem qhia yog tias cov yeeb nkab yog kub dhau los ntawm kev kuaj nws qhov kub kub: yog tias nws tshaj 140℃f (60 degree), nws yuav ua rau muaj teeb meem lossis qhia qhov teeb meem. Siv tus pas ntsuas kub infrared rau qhov raug, los yog ua tib zoo kov nws {}} Yog tias nws kub dhau los tuav tau ntau tshaj li ob peb feeb, nws yuav muaj kev kub ntxhov heev. Lwm cov cim qhia txog kev sib txawv, warping, lossis chav tuaj los ntawm cov yeeb nkab, uas tuaj yeem muaj teeb meem teeb liab zoo li thaiv cov hluav taws kub.
### 4. Dab tsi yog qhov ntsuas kub rau cov kav dej kub?
Qhov kub txwv rau cov kav dej kub los ntawm cov khoom tab sis feem ntau yog ib puag ncig 180℃f (82 degree) rau cov kav dej uas muaj chaw nyob ntau. Piv txwv li, PEX kav tau ntsuas txog 200℃f (93 degree), cpvc txog 180℃f (82 degree), thiab tooj mus txog 250℃f (121 degree). Txawm li cas los xij, lub tsev cov cim feem ntau pom zoo kom khaws cov dej kub hauv tsev hauv qab 140℃f (60 degree) kom tiv thaiv kev ua pa thiab cov khoom siv.
### 5. Dab tsi yog qhov tsis zoo ntawm cov kav dej kub?
The disadvantages of heat pipes include their high initial cost compared to other cooling methods, sensitivity to orientation (they work best when gravity-assisted), limited operating temperature range based on the working fluid, potential for dry-out or failure if overheated, and difficulty in manufacturing and maintenance due to their sealed, vacuum-based design. Ib qho ntxiv, lawv yuav tsis haum rau txhua qhov chaw ib puag ncig, xws li nyob rau hauv high-}}}}} kev co lossis teeb tsa corrosive.
