Kev sib xyaw roj hmab yog kev tshawb fawb thiab thev naus laus zis tseem ceeb ntawm kev hloov cov elastomers nyoos mus rau hauv cov khoom siv tau nrog cov khoom tsim tshwj xeeb. Nws cuam tshuam nrog kev xaiv thiab sib xyaw cov roj hmab polymers - ob qho tib si ntuj thiab hluavtaws - nrog rau ntau yam khoom ntxiv kom ua tiav cov yam ntxwv tshwj xeeb xws li elasticity, hardness, abrasion resistance, thermal resistance, thiab chemical stability. Tsab xov xwm no muab kev piav qhia txog kev faib tawm ntawm cov khoom xyaw sib xyaw roj hmab, cov ntawv thov tseem ceeb ntawm cov roj hmab sib xyaw, thiab cov khoom siv tseem ceeb siv hauv cov txheej txheem sib xyaw.
Kev faib tawm ntawm cov khoom xyaw sib xyaw
Cov khoom xyaw hauv cov roj hmab sib xyaw tuaj yeem muab faib ua ntau pawg ua haujlwm:
1. Cov Elastomers (Cov Polymers Tseem Ceeb): Cov khoom tseem ceeb, feem ntau ntsuas li 100 feem ib puas roj hmab (phr). Qhov no suav nrog roj hmab ntuj (NR) - los ntawm cov ntoo Hevea latex, muab lub zog tensile zoo dua thiab tiv taus kev tsim kua muag - thiab ntau yam roj hmab hluavtaws xws li roj hmab styrene-butadiene (SBR), polybutadiene (BR), ethylene-propylene-diene monomer (EPDM), roj hmab nitrile (NBR), thiab cov elastomers tshwj xeeb xws li silicone thiab fluoroelastomers.
2. Lub Tshuab Kho (Curing): Qhov no suav nrog cov neeg sawv cev vulcanizing xws li sulfur (0.5–35 phr), accelerators (0.5–5 phr), thiab activators xws li zinc oxide (1.0–5 phr). Lub tshuab no tsim cov tshuaj crosslinks uas hloov cov roj hmab thermoplastic raw mus rau hauv cov khoom siv thermoset nrog cov khoom siv kho tshuab ruaj khov.
3. Cov Khoom Sau: Muab faib ua cov khoom sau txhawb zog (piv txwv li, carbon dub thiab silica) uas txhim kho lub zog kho tshuab, tiv taus kev sib txhuam, thiab tiv taus kev tsim kua muag, thiab cov khoom sau uas tsis txhawb zog lossis nthuav dav (piv txwv li, av nplaum, calcium carbonate, mica) siv rau kev txo nqi thiab kev tswj qhov ntev. Cov khoom sau tuaj yeem ntau ntawm 25 txog 200 phr.
4. Cov Tshuaj Yas thiab Cov Tshuaj Mos: Ntxiv rau kom txhim kho kev ua haujlwm tau zoo, txo qhov viscosity, thiab txhim kho kev ywj pheej hauv qhov kub qis.
5. Cov Tshuaj Tiv Thaiv Kev Poob Qis: Cov tshuaj antioxidants thiab cov tshuaj antiozonants (0.5–2 phr) uas tiv thaiv cov tshuaj los ntawm kev puas tsuaj oxidative thiab ozone.
6. Cov Khoom Pab Ua Khoom: Xws li cov peptizers, tackifiers, thiab lwm yam tshuaj uas pab txhawb kev sib tov thiab kev tsim khoom.
Cov Txheej Txheem Sib Tov thiab Cov Khoom Siv
Kev sib xyaw roj hmab xav tau cov cuab yeej tshwj xeeb kom ua tiav kev sib xyaw thiab kev sib kis ntawm txhua yam khoom xyaw hauv lub matrix elastomeric. Cov txheej txheem siv dav tshaj plaws hauv kev lag luam roj hmab yog cov txheej txheem sib xyaw ua ke.
Cov Khoom Sib Tov Sab Hauv (Banbury Mixers): Cov no yog cov khoom siv ua haujlwm ntawm cov roj hmab niaj hnub no. Lub khoom sib tov sab hauv muaj ob lub rotors uas tig tau zoo li lub kauv uas kaw rau hauv chav sib tov kaw. Ob hom rotors feem ntau siv: tangential rotors, uas thawj zaug tawg ua ke ces faib cov khoom, thiab intermeshing rotors, uas ua haujlwm hauv qhov sib txawv. Cov khoom sib tov sab hauv ua haujlwm nyob rau hauv qhov kub thiab txias tswj tau, muab kev ua haujlwm zoo, kev sib kis sib npaug, thiab txo cov pa phem ib puag ncig. Lawv yog qhov tseem ceeb rau kev tsim cov log tsheb thiab kev tsim cov roj hmab loj hauv kev lag luam.
Ob Lub Tshuab Yob (Open Mills): Cov no muaj ob lub tshuab dov uas tig rov qab thiab teeb tsa kab rov tav. Cov roj hmab sib xyaw ua ke raug xa mus rau ntau zaus los ntawm qhov sib txuas ntawm cov yob, qhov twg cov zog txiav siab ua rau sib tov thiab sib kis. Ob lub tshuab dov siv rau kev ua cov roj hmab ntuj, sib tov cov khoom sib xyaw, ua kom sov cov khoom, thiab ua cov ntawv. Lawv tseem muaj txiaj ntsig zoo rau kev tsim khoom me me, cov xim sib xyaw, thiab cov ntawv thov uas xav tau kev tswj qhov kub thiab txias zoo.
Kev Sib Tov: Muaj ntau txoj kev sib tov tau tsim, suav nrog kev sib tov ib txwm muaj (ntxiv roj hmab ua ntej, tom qab ntawd yog hmoov, cov khoom ua kom yas, roj, thiab cov neeg sawv cev kho), kev sib tov tig rov qab (sib tov cov khoom sau thiab roj ua ntej ntxiv cov polymer), kev sib tov ib theem, thiab kev sib tov ob theem (uas txo qhov kub thiab txhim kho kev sib kis). Kev xaiv ntawm lub voj voog nyob ntawm cov qauv sib xyaw thiab cov yam ntxwv xav tau.
Cov ntawv thov
Cov roj hmab sib xyaw yog qhov tseem ceeb hauv txhua qhov kev lag luam thiab cov neeg siv khoom.
Tsheb thiab Kev Thauj Mus Los: Qhov no tseem yog qhov kev lag luam siv ntau tshaj plaws. Cov roj hmab sib xyaw ua ke siv rau hauv cov log tsheb, cov txheej txheem sib tov roj hmab, cov hoses, cov foob, gaskets, siv, cov mounts cav, cov khoom siv tiv thaiv huab cua, thiab cov khoom siv tiv thaiv kev co. Kev nce ntxiv ntawm cov tsheb fais fab ua rau muaj kev xav tau rau cov tshuaj sib xyaw ua ke uas muaj kev tiv thaiv hluav taws zoo dua, kev rwb thaiv hluav taws xob, thiab kev tswj hwm cua sov.
Kev Siv Hauv Kev Lag Luam: Cov tshuaj sib xyaw ua ke yog qhov tseem ceeb rau cov siv txoj siv sia, cov yeeb nkab lag luam, cov khoom pwm, cov menyuam, thiab cov hlau thiab cov xov hlau rwb thaiv tsev. Cov kev siv no xav tau kev tiv taus kev sib txhuam siab, kev ruaj khov tshuaj lom neeg, thiab kev ruaj khov.
Cov Khoom Siv Rau Cov Neeg Siv Khoom Thiab Cov Khoom Tshwj Xeeb: Cov roj hmab sib xyaws ua ke siv rau hauv khau, ru tsev thiab geomembranes, cov foob rau cov khoom siv hluav taws xob, gaskets, thiab cov khoom kho mob thiab cov khoom noj uas kov tau.
Xaus lus
Kev sib xyaw roj hmab yog ib qho kev kawm txawj ntse uas muab kev tshawb fawb txog cov ntaub ntawv, lub Hoobkas sib xyaw roj hmab qhib, kev tsim kho tshuaj lom neeg, thiab kev siv tshuab ua khoom siv. Los ntawm kev xaiv thiab sib xyaw cov elastomers nrog cov txheej txheem ntxiv uas raug cais tawm - thiab kev siv cov khoom siv tshwj xeeb xws li cov khoom sib tov sab hauv thiab cov tshuab sib xyaw ob-yob - cov neeg sib xyaw tsim cov khoom siv tshwj xeeb uas ua rau muaj ntau yam khoom tseem ceeb rau lub neej niaj hnub no, los ntawm cov log tsheb thiab cov siv conveyor mus rau cov foob thiab cov khoom siv kho mob.
Lub sijhawm tshaj tawm: Lub Rau Hli-23-2026
