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Txheem hom PTFE Gasket
May 17, 2017

Teflon (PTFE) gasket yog cov khoom tseem ceeb ntawm polytetrafluoroethylene, vim nws muaj cov yam ntxwv zoo heev thiab dav siv hauv ntau yam lag luam, tuaj yeem ua raws li kev sib txawv kev lag luam thiab lwm cov kev xav tau, ntxiv ntau yam tshuaj yeeb dej caw, Tom qab kev tshwj xeeb los ntawm kev ua. Tam sim no, PTFE Gasket yog ib qho tseem ceeb ntawm kev sib foob ua flange, txoj cai ua hauj lwm ntawm lub pob tawb thaum lub sij hawm sealing txheej txheem yog los ntawm sab nrauv quab yuam txhuam cov khoom siv los ua cov yas (los yog elastic) deformation, yog li sau daim nplaum ntawm lub voos Tsis sib txig txoj haujlwm, kom txiav tawm ntawm cov pa taws tawm, kom ua tiav lub hom phiaj ntawm kev sib khi.

Txuj hom PTFE Gasket:

Tam sim no nyob rau hauv kev lag luam ntau hom roj gas, peb tsuas yog raws li cov khoom thiab cov qauv los faib rau pawg neeg: ① non-cov pa roj carbon monoxide (PTFE, rubber asbestos, rubber, flexible graphite, hom ntoo sib luag) , ③ Cov Hlau Thoob Plaws Hnav Cov Ncauj Taub Ncuaj, Lub Hniav Hlau, Lub Hniav Hluav Taws Xob, Cov Ntawv Phaj Nrig,

Yog hais tias qhov muab cais tawm ntawm qhov foob ntawm cov lus: "tsis yog xim hlau", "metal gasket" hauv cov hlau hauv plawv, lub nplhaib, rab phom, ntaub qhwv lub hau, lens lub ncoo, thiab "hlau sib cais" yog qhov ceev nruj thiab ceev nrig nws tus kheej.

PTFE Gasket nrog kev ua tau zoo thiab tsis zoo sib txawv

Teflon gasket txheem thiab xaiv txoj cai:

Kev siv cov gasket yog kev tiv thaiv ntawm kev siv cov kav dej. Thaum peb xaiv PTFE Gasket, peb yuav tsum xaiv raws li lub zog ntawm lub nruab nrab, qhov kub, qhov siab, kev khiav hauj lwm txawv, qhov khoom loj thiab ntev npaum li cas ntawm kev ua haujlwm. Lub hauv paus loj yog raws li nram no:

▲ Kev xaiv ntawm PTFE gasket Lus cim:

① phim cov flange nrog lub ntaws dej ntim rau hauv daim ntawv thiab qhov loj me

② nominal siab ntawm flange thiab gasket

③ daim npav nom tswv ntawm flange thiab gasket

④ qhov nruab nrab ntawm cov dej nruab nrab

⑤ qhov kub ntawm cov dej nruab nrab

▲ Kev xaiv ntawm PTFE gasket kom pom tau yam tseem ceeb:

① Puas yog qhov kev rov qab sib thoob thiab kev sib hloov kom zoo? Nws puas tuaj yeem tos kom haum thiab muaj kev kub ntxhov siab?

② Lub zog puas zoo haum nrog lub ntaws dej ntawm flange?

(3) Cov hlau kheej flanges (xws li cov hlau uas tsis muaj hlau fwj (austenitic stainless acid-resistant steel) uas muaj cov ntxhiab tsw ploj, cov khoom siv roj gas tsis muaj cov khoom ua kom tsis muaj zog (xws li kev tswj cov chloride ion ntsiab lus ntawm gasket) ntawm flange)

④ seb nws yuav kis tau cov impurities (uas yog, kaw nruab nrab ntawm cov dej haus, npias, tshuaj, plasma, thiab lwm yam)

⑤ PTFE Gasket Rau tej lub hnab ntim cov tshuaj lom neeg muaj kuab heev, lub pa taws yuav tsum muaj kev nyab xeeb dua. Ntawm lub raj xa dej uas cov kua flammable tau xa tuaj, cov roj gas yuav tswj tau ntawm kev kub siab tshaj plaws thiab qhov siab tshaj plaws rau kev siv flange Yog lub siab nyob rau hauv cov kev txwv?

⑥ high temperature, yog tsis yooj yim rau soften, creep kuj yog zoo txaus? Nws puas yooj yim rau soften thaum kub tsis txias thiab seb qhov nyiaj ntawm shrinkage puas txaus?

Nheev ua tau zoo? Nws puas yooj yim los compact thiab nruab?

⑧ gaskets kom yooj yim rau disassemble, ua tsis tau bonded flange sealing nto?