Fluoroelastomer tau ua tiav tiav thiab muab tso rau hauv kev tsim khoom los ntawm DuPont hauv nruab nrab xyoo 1950 rau ntau tshaj 60 xyoo. Nws muaj cov roj ua haujlwm zoo, kub kub ua haujlwm, muaj zog acid tsis kam, alkali tsis kam, hluav taws xob tiv thaiv, corrosion kuj, muaj zog oxidant tsis kam, muaj zog chemical resistance, zoo roj nruj, zoo lub cev thiab txhua yam khoom, thiab hluav taws xob rwb thaiv tsev, tsis tshua muaj compression thiab deformation mus tas li. Raws li ib tug tshwj xeeb hluavtaws roj hmab, nws yog dav siv nyob rau hauv chemical kev lag luam, aerospace, tsheb, roj av kev lag luam, machinery, electronics thiab lwm yam kev lag luam. fluorine roj hmab muaj kev ua tau zoo heev thiab kev siv dav dav. Kev ywj pheej tsim los ntawm Tuam Tshoj tus kub-kub fluoroether roj hmab tau ntse siv nyob rau hauv kev tsim cov Long March series ntawm launching tsheb servo mechanism seals, as Well as assembled nyob rau hauv fighter dav hlau, tshiab tso tsheb hlau luam ntawm cov roj yeeb nkab, hluav taws xob Circuit Court sheathing thiab lwm yam accessories. Hauv kev siv pej xeem rau cov khoom siv tsheb, nce ib hnub dhau ib hnub, hauv kev lag luam maj mam txhawb kev siv fluorine roj hmab.
Txawm hais tias fluorine roj hmab muaj kev tiv thaiv zoo tshaj plaws rau kev tshaj tawm thiab kub kub raws li tau hais los saum no, muaj qee qhov txawv txav thiab teeb meem hauv cov txheej txheem ntawm kev ua thiab tsim cov khoom siv roj hmab fluorine, cov khoom uas muaj cov khoom siv scorched tuag thaum sib tov, qhib refining nplaum chais, qee zaum me me dawb dots tau pom thaum txiav thiab xyuas tom qab cov yeeb yaj kiab tso tawm, cov khoom lag luam yooj yim rau tsim kua muag, tawg thiab tawg. tsis muaj roj hmab, khoom deformation, loj pwm staining thiab lwm yam tshwm sim, uas cuam tshuam rau cov khoom zoo. Qhov zoo ntawm cov khoom raug cuam tshuam.
Hauv kev teb rau qhov txawv txav saum toj no hauv cov txheej txheem tsim khoom, cov kev daws teeb meem hauv qab no tau ua.
Point 1. Mixed fluorine roj hmab cov khoom tuag
Yog vim li cas rau cov khoom siv roj hmab sib cuag nrog sulfur yellow lossis sulfur yellow cov khoom, ntau lub lag luam tsis muaj lub tshuab tshwj xeeb refining fluorine roj hmab, feem ntau refining lwm yam sulfur daj roj hmab cov ntaub ntawv, ntxuav tsis nyob rau hauv qhov chaw, los yog cov khoom xyaw tainted sulfur daj los yog dej, yog li ntawd yuav tsum tau ua ke nrog cov fluorine roj hmab txhawb los ntawm scorching, los yog fluorine lub luag hauj lwm ntawm cov roj hmab deg com. Kev daws, lub tshuab tshwj xeeb zoo tshaj plaws, yog tias tsis yog, tseem yuav tsum tau hloov pauv ntawm cov roj hmab fluorine ua ntej kev ua kom zoo, yuav tsum tau ntxuav tag nrho cov phaj baffle thiab cov khoom siv phaj, tsis txhob sib cuag nrog dej thiab sulfur daj, cov khoom xyaw siv cov cuab yeej tshwj xeeb, cov khoom siv ib rab diav, kom tsis txhob muaj kev sib kis. Khaws calcium hydroxide thiab magnesium oxide kaw thiab npaj siv.
Point 2. Qhov tshwm sim ntawm cov nplaum nplaum
Feem ntau nyob rau hauv cov txheej txheem sib xyaw ntawm lub tshuab qhib, cov khoom siv roj hmab nruj nreem qhwv hauv cov menyuam rov qab, los yog tib lub sij hawm qhwv ua ntej thiab tom qab ob lub chais, ua rau cov khoom siv roj hmab qub tsis tuaj yeem tig rov ua dua, thiab tom qab nrog tus neeg sawv cev ntxiv tau yooj yim nias rau hauv flakes thiab poob, ua rau tsis sib xws. Lub ntsiab yog vim li cas rau cov khoom siv roj hmab fluorine ua rau cov menyuam yaus yog cov Menny lossis cov ntsiab lus tsis tshua muaj fluorine roj hmab. Kev daws rau qhov teeb meem no yog xaiv cov roj hmab nyoos uas muaj viscosity txog 70, thiab siv cov roj hmab nyoos nrog qhov nqaim molecular hnyav faib, thiab tom qab ntawd ntxiv me me ntawm Brazilian wax lossis fluorine wax lossis qis molecular hnyav polyethylene rau hauv cov mis, uas tuaj yeem daws qhov tshwm sim ntawm cov nplaum nplaum.
Point 3. Hais txog cov me me dawb nyob rau hauv cov roj hmab compounding
Nws yog vim qee cov hmoov dispersion ntawm fluorine roj hmab compounding tus neeg saib xyuas tsis zoo, los yog vim cov hmoov ya raws caking, xws li cov kua qaub absorbers calcium hydroxide, magnesium oxide thiab diatomaceous ntiaj teb, barium sulfate, thiab lwm yam, cov tshuaj, los tiv thaiv cov compounding tus neeg sawv cev noo noo thiab ntxiv dag zog rau cov txheej txheem nyias.
Point 4. Cov khoom yog ib qho yooj yim los tsim kua muag
Qhov ua rau, tej zaum yuav tuab heev burr, trimming thaum tearing, los yog pwm nrog nruj heev, tawm ntawm cov pwm burr qhov chaw yog daig nyob rau hauv pwm, yooj yim los ntawm cov khoom thiab burr ua ntej tearing, tsis sib npaug quab yuam thaum pib pwm, yooj yim los tsim kua muag khoom. Qee lub sij hawm cov pwm kab noj hniav yog qhov ntxhib, lossis cov khoom siv nplaum nplaum rau hauv pwm, thiab thaum lub vulcanization tiav, nws ua rau nyuaj rau tshem tawm cov pwm thiab kua muag cov khoom yooj yim. Tsis tas li ntawd, qhov kub ntawm vulcanization yog siab dhau lawm, uas tseem yuav ua rau cov khoom tawg yooj yim thiab tawg. Rau qhov txawv txav saum toj no, nws tuaj yeem daws tau los ntawm cov hauv qab no: pwm ua precision yuav tsum zoo kab noj hniav roughness Ra tsawg dua 0.8, qhov sib txawv haum yuav tsum tsis txhob loj dhau, vulcanization kub tswj tshuav ntawm 170 degrees yog qhov zoo, thiab cov khoom siv roj hmab hnyav yuav tsum yog.
Point 5. shrinkage thiab tawg Cov teeb meem
Nws yog vim lub siab raug tshem tawm thaum lub pwm qhib, fluorine roj hmab shrinkage, thiab burr ib feem yog daig nyob rau hauv cov pwm nrog rau saum npoo ntawm, yog li ntawm cov khoom ib feem thiab cov burr tsim ib tensile quab yuam, kom cov khoom thiab cov burr phua, thaum lub tawg enclosure yog nthuav rau cov khoom, nws ua rau shrinkage thiab cracking tshwm sim. Kev daws yog txo qhov kub ntawm vulcanization kom tsim nyog, xaiv cov Menny viscosity nyob rau hauv txog 70 [ML1 + 4] 121 degrees, thaum lub pwm haum degree yuav tsum tsim nyog, tsis dhau xoob thiab nruj heev.
Point 6. Ntug zoo li hlawv
Nws yog vulcanization kub siab dhau lawm, tshwj xeeb tshaj yog cov khoom tuab, tsim nyog los txo qhov kub ntawm vulcanization tuaj yeem kov yeej.
Point 7. Muaj cov cim ntawm qhov sib koom ua ke
Kuv t yog vim lub puab tsaig ib feem ntawm cov khoom nplaum tsis yog tag nrho fused ua ke, los yog vim cov nplaum nplaum muaj impurities los yog roj fouling, cov tshuaj yog kom cov preformed adhesive strip nyob rau hauv cia, tsheb thauj mus los, loading kua nplaum kom huv si, tiv thaiv kom txhob muaj kuab paug.
Point 8. Tsis muaj kua nplaum
Nws muaj feem xyuam rau cov qauv ntawm cov pwm thiab cov kua nplaum ntawm cov kua nplaum. Cov pwm kaw yuav ua rau tsis muaj kua nplaum ntau dua li cov pwm qhib. Txoj kev daws teeb meem yog los kho cov kua roj hmab thiab qhib lub qhov cua hauv qhov pwm kab noj hniav.
Point 9. Khoom deformation
Nws yog vim lub fluorine roj hmab shrinkage tus nqi yog loj, tom qab molding cov khoom shrinkage anisotropy, lub coefficient ntawm thermal expansion ntawm cov roj hmab nyob rau hauv txawv cov lus qhia yog txawv, ob vulcanization txheej txheem yuav tsim ntxiv cross-linking, tshwj xeeb tshaj yog ib feem ntawm vulcanization nyob rau hauv sulfur, ob vulcanization ntawm cov khoom, ntau pom tseeb deformation, yog li muab tag nrho lub sij hawm ntawm vulcanization ntawm vulcanization. deformation.
Point 10.Mold stain loj tshwm sim
Peb feem ntau siv 26 hom fluorine roj hmab, phenol vulcanization system, nyob rau hauv cov txheej txheem vulcanization yuav raug generated HF, nws yog ib tug muaj zog acid, muaj ib tug zoo corrosive nyhuv rau cov pwm, cov mis nyuj ntxiv acid absorbent yog absorbed HF generated, tiv thaiv kom txhob muaj kuab paug ntawm pwm. Kev daws yog siv cov calcium hydroxide txaus thiab magnesium oxide raws li cov qauv, qhov ntau npaum li cas feem ntau yog 6 qhov chaw thiab 3 qhov chaw, thiab Brazilian wax tuaj yeem ntxiv rau cov mis, uas tuaj yeem txav mus rau hauv cov roj hmab saum npoo thaum lub sij hawm vulcanization los tsim ib zaj duab xis los tiv thaiv pwm los ntawm kev kis kab mob.
Cov saum toj no kaum qhov txawv txav hauv kev tsim thiab ua cov roj hmab fluorine tuaj yeem daws tau los ntawm ntau yam kev ntsuas.
