Hauv ib puag ncig kev lag luam thiab kev lag luam niaj hnub no, cov log tsheb ua los ntawm ntau yam khoom siv tau siv dav hauv ntau qhov xwm txheej vim lawv cov khoom tshwj xeeb. Los ntawm cov log nylon, cov log nylon cam khwb cia (MC) mus rau cov log tsheb roj hmab khov kho, cov log roj hmab mos. Tom qab ntawd mus rau cov log roj hmab hluavtaws, cov log roj hmab tiv thaiv hluav taws xob. nrog rau cov log twj tso kua mis thiab cov log hlau cam khwb cia. Txhua lub log no yog qhov tshwj xeeb thiab Txaus siab rau ntau yam kev ua haujlwm nyuaj hauv av thiab cov kev xav tau thauj khoom. Tom ntej no. Peb kuj tseem yuav npog ntau hom log.
Lub log polypropylene, feem ntau hu ua PP log
Polypropylene yog ib yam khoom siv thermoplastic uas Paub txog nws qhov kev tiv thaiv kev cuam tshuam, kev tiv thaiv corrosion, kev sib txhuam tsis kam, tsis muaj cim, tsis muaj xim thiab tsis muaj tshuaj lom. Cov khoom siv no tsis muaj ntxhiab, tsis-hygroscopic thiab tiv taus ntau yam tshuaj corrosive. Txawm li cas los xij, nws tsis muaj cov neeg sawv cev oxidizing muaj zog thiab cov tshuaj halogenated. Cov log Polypropylene yog qhov tsim nyog rau qhov kub thiab txias ntawm -20 ° C txog + 60 ° C. Txawm li cas los xij, thaum qhov kub thiab txias ambient siab dua + 30 ° C, nws lub peev xwm nqa yuav raug txo qis.
Lub log Polyurethane
Polyurethane (TPU) yog thermoplastic polyurethane. Cov log no muaj lub hauv paus polypropylene lossis nylon. Polyurethane yog txhaj tshuaj pwm rau ntug sab nraud ntawm lub hauv paus los ua lub ntsej muag log. Cov log Polyurethane muaj cov yam ntxwv zoo heev ntawm kev tiv thaiv hauv pem teb, nqus cov kev co, tsis muaj cim, tsis muaj xim, elastic, tsis kam rau kev sib txhuam thiab tiv taus corrosion los ntawm ntau yam tshuaj lom neeg. Tsis tas li ntawd. Nws kuj tiv taus dej kub thiab dej pa dej nyob rau hauv qee qhov xwm txheej. Nws qhov kev tiv thaiv dov yog qis. Haum rau ntau yam hauv pem teb. Xim tuaj yeem ua tau raws li kev thov. Ua kom tau raws li qhov xav tau sib txawv. Thermoplastic polyurethane monowheels yog qhov tsim nyog rau qhov kub ntawm -45 ° C txog +90 ° C. Txawm li cas los xij, lub peev xwm nqa khoom txo qis ntawm qhov kub ambient siab dua +35 ° C.
Lub Log Elastomer Polyurethane (CPU) Casting
Cov log polyurethane elastomers (CPUs) yog cov thermosetting polyurethane elastomers uas tau pwm los ntawm kev tshuaj lom neeg. Cov ntaub ntawv tseem ceeb suav nrog polyester polyols, diisocyanates thiab glycols. Hom log no siv lub plawv hlau lossis txhuas ua lub plawv, thiab polyurethane raug nchuav rau ntawm ntug sab nraud ntawm lub plawv. Lub log nto yog tsim los ntawm kev kho ntawm qhov kub siab. Cov log polyurethane nchuav yog tiv thaiv av zoo heev, Lub zog nqus kev co, tsis muaj cim, tsis muaj xim, tsis kam sib txhuam zoo, elasticity zoo, tiv taus corrosion los ntawm ntau yam tshuaj lom neeg, tiv taus UV. Ntxiv rau. Nws muaj qib siab ntawm kev ua haujlwm xis nyob, Lub zog dov qis. Tsawg dua cua sov thaum raug rau cov khoom thauj dynamic. Xim yog dawb. Nws yog qhov tsim nyog rau qhov kub thiab txias txij li -30 ° C txog +70 ° C. Txog +90 ° C rau lub sijhawm luv luv. ntawm qhov kub thiab txias hauv qab -10 ° C. Nws qhov rigidity ua tau zoo tshaj plaws.
Lwm lub log polyurethane (CPU) uas ua los ntawm cam khwb cia
Cov log tsheb polyurethane (CPU) no kuj yog ua los ntawm cov thermosetting polyurethane elastomers uas yog cov tshuaj tiv thaiv molded. Ua los ntawm polyester polyols, diisocyanates thiab glycols. Nws muaj cov yam ntxwv ntawm kev tiv thaiv hauv av, tsis muaj cim, tsis muaj xim, tsis kam rau kev sib txhuam, zoo elasticity thiab tiv taus corrosion ntawm ntau yam tshuaj lom neeg. Nws kuj tiv taus UV. Uas muaj qib qis heev ntawm kev hloov pauv tas mus li. Tsis kam dov qis. Tsawg dua cua sov thaum raug rau cov khoom thauj dynamic. Thiab tiv taus hydrolysis. Tshwj xeeb tshaj yog haum rau kev ceev dua txog li 16km / h. Xim tuaj yeem hloov kho raws li qhov thov. Qhov kub thiab txias siv tau yog ntawm -45 ° C thiab + 90 ° C, nrog lub sijhawm luv luv ntawm + 90 ° C.
Lub log ua los ntawm polyurethane ua npuas ncauj (PUE)
Cov log tsheb polyurethane ua npuas ncauj (PUE) kuj hu ua microporous polyurethane. Nws yog ib qho polymer thaiv. Cov log tsheb no yog tus cwj pwm los ntawm kev ywj pheej zoo, nws cov khoom siv lub cev ntau dua li lwm cov microporous elastomers ntawm tib qhov ceev. Cov log tsheb polyurethane ua npuas ncauj muaj cov khoom zoo xws li qhov ceev qis, lub teeb yuag, yooj yim rau deform, yooj yim rau pwm, kev cuam tshuam tsis kam, kev nqus suab zoo, kev thauj khoom siab, elasticity siab, kev tiv thaiv folding zoo, kev tiv thaiv siab qis, kev tiv thaiv kev sib txhuam, kev tiv thaiv kua muag, kev tiv thaiv hluav taws xob thiab kev nqus dej poob siab thiab buffer. Nws muaj ntau yam kev nyuaj. Los ntawm Shore A10 txog 100, zoo tagnrho rau kev siv ua cov khoom siv caster.
Zuag qhia tag nrho. Txhua lub log no muaj nws cov yam ntxwv. Lawv txhua tus muaj lawv tus kheej cov yam ntxwv hais txog cov khoom siv, kev ua tau zoo thiab ib puag ncig siv tau. Thaum xaiv cov log, peb yuav tsum tau ua qhov no raws li cov xwm txheej siv thiab cov kev xav tau tshwj xeeb. kom ntseeg tau tias lub log tsim nyog tshaj plaws raug xaiv. Yog li, nws ua haujlwm zoo tshaj plaws.
Lub sijhawm tshaj tawm: Lub Peb Hlis-04-2025