PTFE xim zaj duab xis yog ib hom tshiab ntawm c-qib rwb thaiv tsev cov ntaub ntawv uas muaj kev ua tau zoo heev, uas yog tsim rau cov kev cai tshwj xeeb, xws li cov khoom siv hluav taws xob cim los ntawm cov xim los yog hlau rwb thaiv tsev, thiab lwm yam. kev lag luam thiab kev siv hluav taws xob science thiab technology.
PTFE xim zaj duab xisyog ib hom tshiab ntawm c-qib rwb thaiv tsev cov ntaub ntawv uas muaj kev ua tau zoo heev, uas yog tsim rau cov kev cai tshwj xeeb, xws li cov cuab yeej hluav taws xob cim los ntawm cov xim lossis hlau rwb thaiv tsev, thiab lwm yam. -edge electronic science thiab technology.Nyob rau hauv daim ntawv thov thaum ntxov ntawm PTFE yas insulated hlau thiab cable, nws tsuas yog txwv rau cov xov hlau sab hauv thiab cov hlau lead ntawm cov khoom siv hluav taws xob thiab cov khoom siv hluav taws xob nyob rau hauv qhov kub thiab txias ntawm cov dav hlau, nkoj thiab lwm chav cav hauv cov tub rog.Nrog rau kev nce qib ntawm kev npaj technology, PTFE tau maj mam txuas ntxiv mus rau pej xeem hluav taws xob thiab hluav taws xob cov khoom siv hluav taws xob installation kab nyob rau hauv ib puag ncig high-temperature.Yav dhau los, cov yeeb yaj kiab PTFE hauv tsev feem ntau yog cov xim ntawm cov ntaub ntawv (vim tias PTFE films tsis yooj yim rau xim).Txhawm rau kom paub qhov txawv ntawm cov kab nkag thiab tawm ntawm cov kab sib txawv sib txawv thiab ua kom yooj yim rau kev sib txawv, txheej txheej yuav tsum tau siv rau xim.
Nrog rau PTFE xim zaj duab xis hauv tsev ntau lawm ncav cuag ib qho kev ntsuas, los ntawm kev txhim kho cov txheej txheem, qhov kev ua tau zoo ntawm cov khoom feem ntau mus txog qib ntawm cov khoom txawv teb chaws zoo sib xws.Txawm li cas los xij, tam sim no cov khoom lag luam PTFE xim zaj duab xis muaj qhov tsis zoo ntawm cov xim xim thiab lwm yam ntawm cov tsos, xws li kev faib tsis sib xws ntawm cov xim xim thiab lwm yam teeb meem.Nrog rau kev tsim kho tshiab PTFE xim zaj duab xis npaj thev naus laus zis thiab kev txhim kho txuas ntxiv ntawm cov neeg siv cov nplaim hluav taws xob rau cov xov hlau thiab cov cables, PTFE xim zaj duab xis insulated xov hlau thiab cables tau siv ntau dua thiab dav hauv cov tsev siab siab, tsheb tsav, khoos phis tawj. Hauv cheeb tsam network, subway thiab lwm qhov chaw uas tsis yog-kub kub.
Cov txheej txheem ntau lawm ntawm polytetrafluoroethylene xim zaj duab xis:
(1) pretreatment ntawm PTFE resin raw khoom
PTFE suspended nplua resin tau muab tso rau hauv ib lub tsev cog khoom tas li ntawm 20 ℃ ~ 23 ℃ rau 24 teev rau kev kho ua ntej.
(2) pretreatment ntawm pigments
Muab cov xim inorganic tso rau hauv lub tais kom qhuav ntawm 2O ℃ ~ 23 ℃ rau ntau tshaj 24 teev siv.
(3) xim
Ib qho nyiaj ntawm kev kho ua ntej PTFE tshem tawm cov khoom zoo raug muab ntxiv rau hauv rammer, thiab qee qhov ntawm cov xim ua ntej kho inorganic tau ntxiv rau kev sib xyaw ntawm kev kub ceev kom tawg cov xim sib npaug, thiab cov resin tau xoob los pab txhawb cov txheej txheem molding. .
(4) pwm
Cov dyed xim PTFE cov khoom zoo tau ntxiv rau hauv pwm los ntawm cov txheej txheem txias txias, thiab 40 000g PTFE cov xim zoo nkauj cov khoom raug nias rau hauv qhov khoob ntawm 100 tuj tsis siv neeg siab tshuab ntawm 2O MPa molding ib lub siab.Thaum lub sij hawm nias, kev saib xyuas tau them rau cov pa tawm kom tsis txhob tawg ntawm cov khoom seem.
(5) sintering
Yuav tiv thaiv cov xim zoo nkauj ntawm qhov kub thiab txias sintering rauv, cua sov ntawm tus nqi ntawm li 5 ℃ / ho mus rau 330 ℃, txuag cua sov, 3 h, ces nce ntawm tus nqi ntawm 25 ℃ / h mus txog 380 ℃, rwb thaiv tsev 10 ~ 14 h, thiab tom qab ntawd txias ntawm tus nqi ntawm 20 ~ 25 ℃ / h rau 320 ℃, kev txuag hluav taws xob 3 ~ 4 h, qhov kawg txias ntawm tus nqi ntawm li 5 ℃ o / h rau 15 ℃, o kaw hluav taws xob ntuj txias rau chav sov, tawm ntawm cov khoom xim.
(6) tig mus ua ib zaj duab xis
Cov sintered preforms ntawm cov khoom xim yog hloov mus rau hauv nyias zaj duab xis preforms los ntawm tshwj xeeb tshuab dhos.Daim nyias nyias yog 0.1 hli × 100 hli × siab tshaj 300 m (thickness × dav × ntev).
(7) calendering orientation
Cov xim directional dawb paug tom qab tig yog ua tiav los ntawm cov kub yob directional calender (saib daim duab 3) thiab dhau los ua kev taw qhia qib ntawm 1.5 ~ 1.8, thickness 0.05 hli semi-directional zaj duab xis, kub yob kub tswj nyob rau hauv txog 100 ℃.
(8) trimming
Cia peb ua lub thickness 0.05 hli semi-directional xim zaj duab xis nrog tshwj xeeb txiav tshuab ua rau 0.PTFE xim zaj duab xis nrog 05 hli × 90 hli × ntau dua 10m (thickness × dav × ntev).
(9) kev tshuaj xyuas ntawm kev ntim khoom
Cov txheej txheem PTFE coloured zaj duab xis yuav raug kuaj rau kev soj ntsuam kev ua haujlwm sab hauv, thiab kev tshuaj xyuas qhov loj me ntawm cov yeeb yaj kiab yuav ua tib lub sijhawm.Cov khoom tsim nyog yuav tau ntim rau hauv PVC zaj duab xis hnab nrog daim ntawv pov thawj tshuaj xyuas.
Post lub sij hawm: Aug-06-2019