Kev Siv Dual - Txheej PTFE / PFA Tubing Li Cas Txhim Kho Kev Ntseeg hauv Kev Sib Tw Thermal?

Kev nthuav dav thiab kev cog lus tuaj yeem ua rau micro- tawg tuaj yeem txhim kho hauv cov raj PTFE ntshiab dhau sijhawm nrog thermal cycling. Txhawm rau tuav qhov teeb meem no ob txheej txheej raj tau tsim los uas sib txuas cov khoom zoo tshaj plaws ntawm ob qho tib si: ib txheej nyias txheej ntawm PFA thiab thiab txheej txheej ntawm PTFE.

Dual - Txheej PTFE / PFA Tubing Siv
PFA / PTFE tubing yog 2 txheej kev tsim kho nrog nyias txheej txheej ntawm PFA (Perfluoroalkoxy) yaj kho kom txhim kho qhov kev ntxhov siab -kawg tsis kam. Cov txheej sab hauv muaj kev tiv thaiv kev ntxhov siab ntau dua li PTFE ua rau nws ruaj khov dua qhov kub thiab txias dua. Nws kuj muaj qhov smoother thiab ntau impermeable nto, ua rau nws yog ib qho khoom siv zoo tshaj plaws los txo qhov kev pheej hmoo ntawm kev kis kab mob los yog xau hauv cov dej tseem ceeb.

Cov txheej txheej sab nrauv yog tsim los ntawm PTFE uas muab cov neeg kho tshuab lub zog thiab raug nqi zoo. PTFE muaj koob npe zoo rau nws cov tshuaj muaj zog tiv thaiv thiab cov tuab ntxiv ntawm txheej PTFE txheej ua rau kom muaj kev ncaj ncees ntawm cov raj, tiv thaiv cov txheej sab hauv los ntawm lub cev hnav lossis kev puas tsuaj thaum muaj xwm txheej hnyav.

Qhov zoo ntawm Ob chav -Walled PTFE/PFA Tubing rau Thermal Cycling
Dual txheej tubing nrog PFA thiab PTFE muaj ntau yam zoo nyob rau hauv daim ntaub ntawv nrog nquag tshav kub cycling, xws li:

Lub neej ua haujlwm ntev: PFA txheej sab hauv tiv thaiv kev ntxhov siab tawg, uas yog ib txwm muaj nyob rau hauv PTFE tshaj rov ua cua sov thiab cua txias. Yog li ob txheej txheej raj muaj kev ntseeg siab dua thiab muaj lub neej ntev dua.

Tsawg tus pinhole leaks - Kev ntxhov siab zoo dua txhais tau tias muaj feem tsawg ntawm kev tsim cov kab nrib pleb lossis xau thaum lub sijhawm, qee yam uas yuav tshwm sim ntau heev nrog ib qho - txheej PTFE tubing.

Khaws Tshuaj Tiv Thaiv Dual- txheej tubing tuav cov tshuaj tiv thaiv ntawm PTFE thiab PFA, qhov tseem ceeb rau cov ntawv thov uas siv cov tshuaj hnyav.

Zoo dua weldability: PFA sab hauv txheej ntxiv txhim kho lub peev xwm txhim khu kev ntseeg tau rau PFA tubesheets, ib qho tshwj xeeb uas feem ntau xav tau hauv kev ua haujlwm siab.

Nyob rau hauv cov txheej txheem uas ceev ceev kub cycling tshwm sim, txheej txheej txheej txheej no overcomes lub inherent shortcomings ntawm PTFE ntshiab thiab zoo heev boosts qhov kev ua tau zoo ntawm lub tshav kub exchanger los yog kua thauj system.

Teeb meem technical
Cov ntsiab lus melting: PFA melts ntawm qhov kub qis (~ 305 degree) dua PTFE (~ 327℃). Cov khaubncaws sab nraud povtseg yog co-extruded xws li cov khaubncaws sab nraud povtseg thaum lub sijhawm tsim khoom, uas ua kom muaj kev sib txuas ruaj khov ntawm PFA thiab PTFE txheej.

Tus nqi: ob txheej tubing yuav kim dua me ntsis ntau dua li homogenous PTFE raj, tab sis yuav raug nqi ntau dua - zoo dua li PFA tubing. Yog li, ob txheej txheej tubing yog tus nqi - siv tau zoo rau ntau daim ntawv thov kev lag luam.

Daim ntawv sib piv: Ib Txheej VS Ob Txheej Tubing Khoom Ib Txheej PTFE Ib Txheej PFA Ob Txheej PTFE / PFA
Stress Crack Resistance Tsawg Siab Siab Heev
Chemical Resistance Zoo heev Zoo Zoo Zoo heev
Thermal Cycling Resistance Moderate Zoo Zoo heev
Mechanical Strength High Moderate High Nqi Tsawg Siab Nruab Nrab
Vuam Compatibility nruab nrab siab siab
Nyob rau hauv ib tug nutshell
Dual- txheej PTFE/PFA tubing yog ib qho kev daws teeb meem engineering uas txhim kho kev ntseeg tau zoo ntawm PTFE cov khoom siv hluav taws xob sib hloov hauv cov ntawv siv thermal cycling hnyav. Dual txheej tubing muab cov kev ntxhov siab tawg tsis kam ntawm PFA nrog lub zog txhua yam ntawm PTFE, thiab muaj kev lag luam, ruaj khov rau cov ntaub ntawv ib txheej. Raws li kev lag luam ntsib kev xav tau kev ua haujlwm ntau ntxiv, thev naus laus zis xws li dual- txheej txheej tubing tau kov yeej qhov tsis txaus ntawm cov qauv fluoropolymer thiab xa cov txiaj ntsig kev ua haujlwm ntev -.