Cov roj hmab sib xyaw yog cov khoom siv tau ntau yam uas tau dhau los ua qhov tseem ceeb hauv kev lag luam niaj hnub no. Los ntawm kev sib xyaw cov polymers hauv paus nrog cov khoom sau, cov khoom yas, cov neeg sawv cev kho, thiab lwm yam khoom ntxiv, cov chaw tsim khoom tuaj yeem hloov kho cov khoom siv kho tshuab, thermal, thiab tshuaj lom neeg kom tau raws li qhov xav tau tshwj xeeb. Cov roj hmab sib xyaw tau muab faib ua ob pawg tseem ceeb: roj hmab ntuj (NR) thiab roj hmab hluavtaws. Cov roj hmab hluavtaws tau muab faib ua hom dav dav thiab hom tshwj xeeb. Txhua pawg muaj cov yam ntxwv tshwj xeeb uas txiav txim siab nws qhov haum rau ntau yam lag luam.
1. Roj Hmab Ntuj (NR)
Ua los ntawm cov roj hmab latex ntawm tsob ntoo Hevea brasiliensis, roj hmab ntuj muaj nqis rau nws lub zog tensile zoo heev, tiv taus kua muag, thiab elasticity. Nws kuj tseem muaj qhov zoo heev dynamic qaug zog tiv taus thiab tsis kub heev nyob rau hauv cyclic loading. Txawm li cas los xij, NR tsis muaj zog rau roj, cov kuab tshuaj, ozone, thiab UV hluav taws xob, thiab nws cov kev ua tau zoo poob qis thaum kub siab.
Cov Kev Siv: Cov roj hmab ntuj siv dav hauv cov log tsheb rau cov tsheb thauj neeg, cov tsheb thauj khoom, thiab cov dav hlau, tshwj xeeb tshaj yog nyob rau hauv cov phab ntsa thiab cov treads qhov twg qhov yooj ywm thiab kev ywj pheej yog qhov tseem ceeb. Lwm cov kev siv suav nrog cov siv conveyor, cov dampers vibration, cov roj hmab springs, cov nplaum, cov hnab looj tes latex, cov npas, thiab cov khau hauv qab.
2. Roj Hmab Ua Los Ntawm Khoom Siv - Hom Siv Rau Txhua Yam
Cov roj hmab hluavtaws dav dav yog tsim los hloov lossis ua kom tiav cov roj hmab ntuj hauv cov ntawv thov ntau, muab kev tiv taus zoo dua rau kev laus, kev puas tsuaj, lossis cua sov.
· Roj Hmab Styrene-Butadiene (SBR): Cov roj hmab tsim tawm ntau tshaj plaws, SBR muaj kev tiv thaiv kev sib txhuam zoo, kev ruaj khov laus, thiab kev tuav ntub, txawm hais tias nws muaj lub zog tensile qis dua thiab elasticity dua li NR. Nws dominates kev lag luam log tsheb (treads), nrog rau cov siv conveyor, hoses, gaskets, vuas pem teb, thiab khau hauv qab.
· Polybutadiene Roj Hmab (BR): Nrog rau kev tiv thaiv kev sib txhuam zoo heev, hysteresis qis (kev poob zog tsawg), thiab elasticity siab txawm tias nyob rau qhov kub qis, BR feem ntau yog sib xyaw nrog NR lossis SBR los txhim kho kev tiv thaiv kev hnav. Nws cov ntawv thov suav nrog cov log tsheb thiab cov phab ntsa sab, cov pob golf, cov hau rau cov menyuam conveyor, thiab cov khoom hloov pauv rau cov yas.
· Roj Hmab Butyl (IIR): Paub txog nws qhov zoo tshaj plaws tsis pub huab cua thiab roj nkag, ua ke nrog cov khoom zoo damping thiab tiv taus ozone. IIR yog qhov tseem ceeb hauv cov raj sab hauv, cov log tsheb sab hauv, cov zis kho, cov tshuaj stoppers, thiab cov khoom siv npog roj.
3. Roj Hmab Ua Los Ntawm Khoom Siv - Hom Tshwj Xeeb
Cov roj hmab tshwj xeeb yog tsim los rau qhov chaw kub heev uas muaj cua sov siab, tshuaj lom neeg hnyav, roj, lossis huab cua sab nraum zoov. Lawv muaj tus nqi siab dua tab sis ua rau muaj kev siv tseem ceeb.
· Roj Hmab Nitrile (NBR): Tiv taus cov roj av, roj, thiab cov kuab tshuaj zoo heev, ua ke nrog cov khoom siv kho tshuab zoo thoob plaws ntau qhov kub thiab txias (–35°C txog +120°C). NBR yog tus qauv rau cov kav roj, cov roj foob, O-rings, gaskets, cov kav hydraulic, cov hnab looj tes rau kev siv tshuaj lom neeg, thiab cov menyuam luam ntawv.
· Roj Hmab Chloroprene (CR - Neoprene): Ib qho elastomer sib npaug uas muaj kev tiv taus roj nruab nrab, tiv taus huab cua zoo thiab ozone, tiv taus hluav taws, thiab ruaj khov kho. CR siv dav hauv cov siv tsheb (siv sijhawm thiab siv serpentine), cov tsho cable, cov khaub ncaws ntub dej, cov tshuaj nplaum, cov kabmob choj, thiab cov ntaub thaiv huab cua.
· Roj Hmab Ethylene-Propylene (EPM/EPDM): Tiv taus cua sov (txog li 150°C), ozone, UV, pa dej, thiab cov kua dej polar, tab sis tsis sib haum nrog roj thiab roj av. EPDM siv tau rau cov hoses txias hauv tsheb, cov foob huab cua, cov ntaub thaiv ru tsev, cov rwb thaiv hluav taws xob, cov ntaub thaiv pas dej, thiab cov khoom siv hauv lub tshuab nres.
· Roj Hmab Silicone (Q): Nrog rau qhov kev pabcuam ntau yam ntawm -60 ° C txog + 230 ° C (lossis siab dua rau cov qib tshwj xeeb), roj hmab silicone muab kev ywj pheej zoo heev, kev rwb thaiv hluav taws xob, kev sib raug zoo ntawm lub cev, thiab kev tiv taus corona discharge. Nws yog siv rau hauv cov raj kho mob, cov khoom cog, lub raj mis menyuam yaus, cov ntaub pua plag ci, cov khoom rwb thaiv hluav taws xob siab, cov foob pob hluav taws xob, thiab cov khoom sib txuas ntawm cov keyboard.
· Fluoroelastomers (FKM, Viton®): Qhov kev xaiv zoo tshaj plaws rau kev tiv taus tshuaj lom neeg thiab cua sov heev. FKMs tiv taus txog li 250 ° C tas mus li thiab tiv taus yuav luag txhua yam roj, roj, kua qaub, thiab cov kuab tshuaj. Cov ntawv thov suav nrog cov foob cav dav hlau, lub tshuab roj tsheb O-rings, cov gaskets cog tshuaj, cov khoom siv tsim khoom semiconductor, thiab cov khoom siv drilling roj.
4. Cov Thermoplastic Elastomers (TPEs)
Txawm hais tias tsis yog cov roj hmab thermoset ib txwm muaj, TPEs muab kev ywj pheej zoo li roj hmab nrog kev ua haujlwm zoo li yas. TPEs tuaj yeem siv rov qab tau thiab tsis tas yuav kho. Cov hom feem ntau suav nrog styrenic block copolymers (SBS, SEBS) thiab thermoplastic polyurethanes (TPU). Lawv siv rau hauv cov tes tuav mos mos, tawv nqaij sab hauv tsheb, cov khoom siv kho mob overmolding, khau hauv qab, thiab hlau rwb thaiv tsev.
Kev Txheeb Xyuas Txog Kev Lag Luam
· Tsheb thiab Kev Thauj Mus Los: Cov neeg siv cov roj hmab sib xyaw loj tshaj plaws. Cov log tsheb (NR, SBR, BR, IIR), cov hoses (NBR, EPDM), cov ntsaws ruaj ruaj (FKM, NBR), siv (CR, EPDM), thiab cov khoom siv vibration mounts (NR) txhua yam vam khom cov roj hmab tshwj xeeb kom ntseeg tau tias muaj kev nyab xeeb, ua haujlwm tau zoo, thiab ruaj khov.
· Kev Tsim Khoom Hauv Kev Lag Luam: Cov siv sia conveyor (NR, SBR), rollers (NBR, PU), gaskets (ntau yam), hydraulic seals (TPU, NBR), thiab vibration isolation pads (NR) ua kom cov chaw tsim khoom thiab cov tshuab ua haujlwm.
· Kev Siv Dav Hlau thiab Kev Tiv Thaiv: Cov roj hmab ua haujlwm siab xws li FKM thiab silicone yog siv rau cov foob roj, hydraulic O-rings, thermal blankets, thiab cabin pressure seals, qhov twg kev ua tsis tiav yog qhov kev xaiv.
· Kev Kho Mob thiab Kev Saib Xyuas Kev Noj Qab Haus Huv: Cov roj hmab silicone thiab cov roj hmab butyl yog cov tseem ceeb hauv daim teb no rau cov koob txhaj tshuaj, cov hau kaw lub raj mis, cov raj xa dej, thiab cov hlua khi rau cov khoom siv hnav tau vim lawv cov biocompatibility thiab sterilizability.
· Kev Tsim Kho thiab Kev Tsim Kho Vaj Tse: Cov ntaub thaiv ru tsev EPDM, cov gaskets qhov rai CR, cov ntaub thaiv NR choj, thiab cov sealants silicone muab kev tiv thaiv huab cua, kev nthuav dav, thiab lub neej ntev hauv cov tsev thiab cov haujlwm tsim kho vaj tse.
· Cov Khoom Siv Rau Cov Neeg Siv Khoom: Cov hauv qab khau (SBR, BR, TPE), cov khoom siv kis las (pob golf, cov fins dhia dej - NR/CR), cov hnab looj tes hauv tsev (NR, NBR), thiab cov thawv rau khoom siv hluav taws xob (TPE) qhia txog cov roj hmab muaj ntau yam siv tau hauv lub neej txhua hnub.
Xaus lus
Kev faib cov roj hmab sib xyaw ua ke rau hauv cov khoom siv ntuj, cov khoom siv dav dav, cov khoom siv tshwj xeeb, thiab cov thermoplastic elastomers qhia txog ntau yam kev xav tau ntawm kev ua tau zoo thoob plaws hauv kev lag luam. Txij li SBR pheej yig hauv cov log tsheb mus rau FKM kim hauv cov cav dav hlau, txhua cov roj hmab sib xyaw yog cov khoom siv tsim ua tib zoo uas pab txhawb kev nyab xeeb, kev ua haujlwm zoo, thiab kev tsim kho tshiab. Raws li cov ntawv thov tshiab tshwm sim hauv cov tsheb fais fab, lub zog rov ua dua tshiab, thiab cov thev naus laus zis hnav tau, kev txhim kho cov roj hmab sib xyaw ua ke yuav txuas ntxiv ua lub luag haujlwm tseem ceeb hauv kev tshawb fawb txog cov ntaub ntawv thiab kev tsim kho.
Lub sijhawm tshaj tawm: Tsib Hlis-14-2026
