Kev tsim cov txheej txheem ntws rau roj hmab ntaub -Reinforced Diaphragms
Kev tsim cov khoom zoo ntawm - roj hmab zoo- ntaub diaphragm yuav tsum muaj kev tswj xyuas meej txog kev npaj cov khoom, txheej txheej, thiab vulcanization kom tsis txhob muaj qhov tsis xws luag xws li wrinkling, fabric breakage, lossis deg unevenness .
A. Kev Npaj Fabric-Cov Ntawv
1. Kev npaj ntaub thiab kev kho nplaum
Ib qho substrate npuag (feem ntau woven los ntawm nylon, polyester, paj rwb, los yog rayon) yog xaiv.
Cov ntaub yog ua ntej- kho nrog tus neeg sawv cev nplaum, feem ntau ntawm dipping lossis kis, kom ntseeg tau tias muaj kev sib raug zoo nrog cov roj hmab txheej.
Yog tias cov ntaub npuag muaj qhov tsis xws luag, lawv raug cim (xws li, nrog cov xov paj los yog daim kab xev) ntawm ntug rau tom qab kev txheeb xyuas thiab tshem tawm, tiv thaiv lawv los ntawm kev nkag mus rau cov khoom kawg.
2. Roj Hmab Txheej
Cov nplaum-kho cov ntaub yog ua ke nrog cov roj hmab uas tsis tau kho. Cov qauv roj hmab tshwj xeeb (piv txwv li, NBR, EPDM, CR) nyob ntawm cov ntawv thov xws li roj tsis kam lossis kub ntau.
Calendering (Traditional Method):Cov ntaub yog dhau los ntawm lub tshuab calender, uas siv cov roj hmab txheej rau ib lossis ob qho tib si. Txawm li cas los xij, txoj kev no tuaj yeem ua rau cov thickness variations.
Extrusion Method (Advanced Method):Cov ntaub yog dhau los ntawm lub tshuab extrusion molding nrog tuag uas tsim ib daim ntaub - muaj cov ntawv tuab tuab. Txoj kev no yog qhov zoo dua vim nws txo cov khoom pov tseg thiab tso cai rau kev ua haujlwm tas mus li, automated.
B. Moulding thiab Vulcanization
3. Kev txiav dawb
Cov roj hmab-coated ntaub ntawv yog pub rau hauv xovxwm. Siv cov xuas nrig ntaus tuag, ib tus neeg ncig lub voj voog (lossis lwm cov duab uas xav tau) raug txiav los ntawm cov sawb txuas ntxiv. Cov kauj ruam no tuaj yeem siv tau los tswj ntau lub diaphragms ib zaug.
4. Pre-forming thiab Vulcanization
Ib qho khoob yog muab tso rau hauv avulcanization pwm. Cov pwm feem ntau muaj cov sab sauv, nruab nrab, thiab qis qis tsim los tsim cov diaphragm qhov tshwj xeeb geometry (piv txwv li, lub tais zoo li, lub tiaj tus flange, thiab lub hauv paus qhov).
Npuag Tensioning:Ib kauj ruam tseem ceeb yog thawj zaug nias ntawm cov ntaub dawb paug los ntawm nruab nrab pwm. Qhov no "tightens" cov ntaub los tiv thaiv nws los ntawm wrinkling los yog tawg thaum lub sij hawm tsim cov txheej txheem.
Nias thiab Curing:Cov pwm raug kaw hauv qab cua sov thiab siab. Cov cua sov ua kom cov txheej txheem vulcanization (kho), uas hla - txuas cov roj hmab molecules. Qhov tsis zoo rau NBR yuav yog qhov kub ntawm 150-170℃rau 20-40 feeb, txawm tias qhov no txawv ntawm qhov sib xyaw. Cov kauj ruam no khi cov roj hmab rau cov ntaub, muab lub diaphragm nws lub zog kawg thiab elasticity.
5. Secondary Vulcanization (yeem)
Hauv qee cov txheej txheem automated, lub diaphragm yuav dhau mus rau theem ob vulcanization hauv qhov cub lossis lub tank. Qhov no txo lub sij hawm lub diaphragm yuav tsum siv nyob rau hauv cov xovxwm, yog li ua kom tag nrho cov ntau lawm ceev.
6. Txiav thiab ua tiav
Tom qab vulcanization, lub diaphragm tsim yog txiav kom tshem tawm cov khoom siv ntau dhau ("flash") ntawm cov npoo.
Ncej -Curing Machining:Rau cov ntawv thov precision (xws li hauv aerospace), lub diaphragm yuav coated nrog roj, stacked, thiab clamped rau siab - precision sib tsoo ntawm lub puab thiab sab nraud diameters kom meej specifications.
Thaum kawg, cov diaphragms tiav lawm tau pom pom qhov tsis xws luag (xws li mottling lossis npuas) thiab kuaj xyuas qhov tseeb qhov tseeb (inch thiab phab ntsa tuab) ua ntej ntim.