Cov roj hmab silicone thiab PTFE siv raws li cov ntawv foob cov pa roj hmab ntawm cov khoom siv thauj khoom.Qhov sib txawv ntawm cov roj hmab silicone thiab PTFE yog dab tsi?
Ua ntej, lawv muaj cov yam ntxwv sib txawv:
Cov roj hmab Silicone muaj qee qhov txuas ntxiv, hloov tau yooj yim, zoo rwb thaiv tsev, siab tiv thaiv, siab kub tsis kam, tsis kam tiv taus kub, tshuaj lom neeg, kev tiv thaiv ib puag ncig thiab kev nyab xeeb, tsis muaj ntxhiab, khoom noj khoom haus .silicone roj hmab tsis muaj tshuaj lom thiab tsis qab, uas tsis tuaj yeem muaj insoluble hauv dej thiab txhua txoj kev daws teeb meem.Qhov, roj hmab silicone yog qhov khoom ntsuab.
Rau cov yam ntxwv ntawm PTFE gasket: nws yog kua qaub thiab alkali tsis kam, nws tuaj yeem tiv taus kub kub ua hauj thiab tiv taus ntau cov kuab tshuaj organic.
Thib ob, lawv muaj cov ntawv thov sib txawv:
(1) Silicone gasket yog siv dav hauv cov khoom siv thauj khoom uas tsim los thauj cov khoom, xws li plexiglass, iav cov khoom lag luam, cov rooj muag zaub, cov khoom siv hauv tsev, cov khoom siv rooj tog, khoom siv kho vajtse, pob tshab yas khoom, thiab lwm yam.
(2) Rau PTFE gasket uas muaj ntau yam kev siv hauv cov ntsia hlau conveyors uas siv hauv cov roj av, tshuaj, tshuaj, hluav taws xob, thiab kev lag luam steel. PTFE gasket tseem yog cov ntaub ntawv tsim nyog, suav nrog yuav luag txhua yam tshuaj lom neeg, xws li dej, roj, kua tov, thiab kua alkali.
Qhov thib peb, lawv muaj lub luag haujlwm sib txawv.
(1) silicone gasket yog nrog cov tsos zoo nkauj, thiab muaj cov haujlwm ntawm kev ua kom tsis muaj zog, los tiv thaiv kev nplua, tiv thaiv kev sib tsoo thiab tawm tsam, thiab muaj lub siab pob tshab.
(2) PTFE gasket yog nrog cov khoom siv zoo nruj; txawm hais tias qhov ntsuas kub poob rau -196 ° C, tuaj yeem tswj tau 5% elongation. Nws yog inert rau feem ntau cov tshuaj lom neeg thiab cov kuab tshuaj, tiv taus cov tshuaj muaj zog thiab puag, aqua regia thiab ntau cov organic solvent.Yog ntsia hlau conveyor yog thauj cov mis hmoov lossis kua ntses, yuav tsum muaj PTFE nrog FDA ntawv pov thawj. Thaum silicone roj hmab gasket tsis muaj daim ntawv pov thawj FDA.