Hnub no, ntau qhov sib txawv ntawm cov tshuab hluav taws xob tau nthuav tawm rau cov neeg siv khoom hauv khw muag khoom hluav taws xob. MGTF hlau yog nyob rau hauv kev xav tau ntawm cov craftsmen. Cov lus piav qhia ntawm nws cov yam ntxwv muaj nyob hauv kab lus no.
Introduction
MGTF hlau yog cov khoom siv hluav taws xob tiv thaiv tshav kub. Kev ua haujlwm ntawm tus neeg xyuas pib yog ua los ntawm cov tub ntxhais tooj liab. Cov fluorine-muaj cov polymers yog siv los ua cov txheej txheej insulating. Hauv kev tsim khoom, cov yas no tseem hu ua fluoroplastic. Vim nws cov yam ntxwv, MGTF hlau tau siv dav hauv ntau qhov chaw ntawm kev lag luam hluav taws xob hluav taws xob.
Yuav luag txhua qhov kev teeb tsa hluav taws xob tsim los rau qhov hluav taws xob mus txog 250 V tau nruab nrog cov tshuab hluav taws xob no. Cov xim ntawm fluoroplastic yog dawb-liab. Txij li tsis muaj lwm cov txheej txheem rau nws, cov xim no tau dhau los ua cov xim xim rau MGTF cov xov hlau.
Abbreviation
Cov ntaub ntawv hais txog tus qauv tsim thiab cov yam ntxwv ntawm MGTF hlau tuaj yeem pom ntawm cov khoom lag luam.
Vim tias tsis muaj "A" hauv cov ntawv luv,Nws txhais tau tias tus neeg xyuas pib tsis yog ua los ntawm txhuas.
Tsab ntawv "M" qhia tias cov xaim no yog cov xaim txuas. Tsab ntawv "G" qhia txog tus nqi siab ntawm kev hloov pauv ntawm cov kab hluav taws xob no. Hlau MGTF (GOST 22483-2012) yog cov khoom ntawm 5-6 chav kawm ntawm kev hloov pauv.
Lub xub ntiag ntawm lub cim "T" nyob rau hauv lub npe qhia tau hais tias cov khoom muaj cua sov-resistant zog. Xws li ib lub xaim tuaj yeem siv tau ntawm qhov kub siab tshaj 100 degrees. Tsab ntawv "F" qhia txog cov khoom siv los ntawm cov txheej txheem insulating. Hauv qhov no, nws yog PTFE.
Cov cim ntxiv
Nyob ntawm cov txheej txheej insulating, qee cov MGTF xov hlau, ntxiv rau cov qauv cim, kuj tseem muaj cov khoom ntxiv. Piv txwv li, yog tias tsab ntawv "E" muaj nyob rau hauv cov ntawv luv, qhov no txhais tau hais tias cov hlau no tau nruab nrog cov ntaub thaiv npog. Nws yog ua los ntawm tinned tooj liab hlau. Xws li ib tug hlau tsis raug rau electromagnetic hluav taws xob. Yog li ntawd, qhov kev siv hluav taws xob no yuav raug nqi ntau dua.
Lub xub ntiag ntawm tsab ntawv ua ke "EF" qhia tias cov hlau muaj cov tshuaj tiv thaiv thiab txheej fluoroplastic. Cov khoom zoo li no tau txhim kho cov yam ntxwv ntawm lub tshuab.
Tsab ntawv "MS" qhia tias PTFE txheej yog ntxiv sintered. Cov hlau ua nyob rau hauv txoj kev no muaj cov khoom muaj zog-resistant.
Numerical designation
Hauv kev cim ntawm cov xov hlau, cov tsiaj ntawv ua raws cov lej. Ua ntej ntawmlawv qhia tus naj npawb ntawm cov xov hlau conductive. Yog tias cov khoom tau nruab nrog ob lub cores, tus naj npawb "2" yog tam sim no nyob rau hauv lub cim. Qhov kawg digital designation qhia txog ntu. Nyob ntawm seb muaj pes tsawg tus cores, qhov ntsuas no txawv ntawm 0.03 - 2.5 mm sq.
Daim ntawv thov
MGTF hlau tau tsim nws tus kheej ua cov khoom siv hluav taws xob zoo hauv kev teeb tsa. Muaj ob txoj hauv kev ua haujlwm nrog cov xov hlau no: zoo li qub thiab txav mus. Blocks thiab cov khoom siv tuaj yeem yog qhov chaw tso MGTF. Aircraft, shipbuilding thiab industrial lug yog nruab nrog no conductive khoom. Tsis tas li, MGTF hlau yog siv rau kev teeb tsa hluav taws xob hauv cov tsev nyob.
khoom siv
Tus neeg xyuas pib tau nruab nrog ntau cov xov hlau ntawm cov ntu me me sib tw ua ke. Txoj kab uas hla ntawm cov xaim nyob ntawm seb qhov hloov pauv ntawm cov khoom twg yog. Piv txwv li, yog tias chav kawm 5 hlau muaj qhov hla ntawm 0.5 mm2, ces txhua tus ntawm nws tus kheej cov xov hlau yuav tsum tsis pub tshaj 0.33 hli. Yog tias cov khoom no belongs rau chav kawm 6, ces txoj kab uas hla tuaj yeem yog 0.31 hli.
Zoo ntawm qhov seem ntawm cov hlau muaj, muaj qee qhov tuab ntawm rwb thaiv tsev rau nws. Yog hais tias tus ntoo khaub lig ntawm MGTF hlau yog 0 35 hli square, lub thickness ntawm insulating txheej yuav tsum yog 0.18 hli. Nrog rau ntu ntu ntawm 0.05 mm square. rwb thaiv tsev thickness yuav yog 0.12mm.
Nrog rau ntu ntu ntu ntawm MGTF hlau 0 2 hli square. nws txoj kab uas hla sab nrauv yuav yog 1.04 hli. Xws li cov khoom yog nruab nrog kaum cuaj tooj liab xov hlau nrog txoj kab uas hla ntawm 0.12 hli.
Rau npo (tooj liab braid) cov xov hlau ntshiabtsis muaj kev cai. Qhov parameter no tau txhais txawv los ntawm txhua tus neeg tsim khoom. Feem ntau tus qauv thickness ntawm cov shielding txheej ntawm MGTF hlau yog 0 12 hli.
Lub caij kawg ntawm cov khoom tsim yog lub plhaub ua los ntawm PTFE. Nws yog tib lub thickness raws li lub ntsiab rwb thaiv tsev.
Mechanical Properties
Qhov tseem ceeb ntawm cov yam ntxwv ntawm cov tshuab muaj xws li:
- Yooj yim. Muaj ob chav kawm yooj yim rau MGTF: 5 thiab 6.
- Kub. Cov khoom siv hluav taws xob no tuaj yeem ua haujlwm ntawm qhov kub ntawm -60 txog +220 degrees. Yog tias tsim nyog, qhov ntsuas no tuaj yeem siab dua. MGTF tuaj yeem cuam tshuam tus kheej ntawm qhov kub ntawm 520 degrees. Txawm li cas los xij, qhov tso cai txwv rau cov khoom lag luam yog qhov ntsuas kub tsis tshaj 220 degrees. Cov xaim no tsis xav tau ua haujlwm ntawm qhov kub txog li 260 degrees. Txwv tsis pub, cov khoom yuav pib yaj. Cov txheej txheem no yog nrog los ntawm kev tso tawm ntawm perfluoroisobutylene, tetrafluoroethylene, carbon monoxide thiab carbon fluoride.
- Resistant rau acids, alkalis, rog thiab hnyav. Tsis tas li ntawd, cov hlau no muaj Frost tsis kam. MGTF tuaj yeem ua haujlwm nyob rau hauv ib puag ncig nruj.
Lub neej kev pabcuam ntawm cov hlau yog tsawg kawg yog nees nkaum xyoo.
Tsis muaj zog
MGTF cov xov hlau muaj lawv qhov tsis zoo:
- Cov khoom tuaj yeem siv rau hauv ib puag ncig uas cov av noo tsis tshaj 80%. Qhov no yog vim lub siab noo noo tsis kam ntawm MGTF.
- Cov khoom lag luam tsis pom zoo siv rau hauv cov chav uas muaj kev hloov pauv kub tam sim ntawd. Txwv tsis pub, noo noo, tau txais nyob rau hauv cov txheej txheem tiv thaiv, yuav txo nws cov insulating zog.
- MGTF rwb thaiv tsev muaj lub siab fluidity: nyob rau hauv hnyav load, nws stretches. Lub thickness ntawm cov txheej tiv thaiv yog li txo. Cov tinned tooj liab nyob ntawm lawv tus kheej, uas ua rau cov txheej txheem insulating, tuaj yeem ua tsis tau. Qhov no suav nrog kev tawg ntawm cov khoom siv hluav taws xob.
khoom hluav taws xob
MGTF xov hlau yog tsim los rau kev ua haujlwm ntawm qhov ntsuas hluav taws xob ntawm kev hloov tam sim no 250V thiab zaus ntawm 5 kHz. DC tam sim no yuav tsum tsis pub tshaj 350V.
Qhov taw qhia ntawm kev tiv thaiv sab hauv yog nyob ntawm seb cov khoom muaj dab tsi. Piv txwv li, yog tias tus ntoo khaub lig ntawm MGTF hlau yog 0 07 mm2, ces nws kuj yuav yog 271 Ohm / km. Xws li cov khoom muaj 14 tooj liab xov hlau, txhua tus muaj txoj kab uas hla ntawm 0.08 hli. Rau MGTF nrog hla ntu ntawm 0.5 mm square. kuj yuav yog 39Ω/km.
Qhov taw qhia ntawm qhov tsis kam ntawm cov txheej insulating. Qhov no parameter yog heev cuam tshuam los ntawm huab cua humidity. Piv txwv li, rau MGTF, nyob rau hauv ib txwm tej yam kev mob, lub rwb thaiv tsev kuj yog tsawg kawg yog 100 txhiab Mohm ib 1 meter. Yog tias huab cua kub siab tshaj 200 degrees, qhov kev tiv thaiv yuav poob mus rau 10 txhiab Mohm. Qhov ntsuas no yuav txo qis dua yog tias nyob rau hauv ib chav tsev uas tsis muaj condensation, cov av noo nce mus txog 98%. Nyob rau hauv cov ntaub ntawv no, lub MGTF rwb thaiv tsev kuj yuav tsis pub tshaj 100 Mohm ib 1 meter.
