Cov roj hmab polyurethane foob, ua los ntawm cov roj hmab polyurethane, yog cov khoom tseem ceeb hauv ntau yam kev siv hauv kev lag luam. Cov foob no muaj ntau hom, suav nrog O-rings, V-rings, U-rings, Y-rings, rectangular seals, custom-shaped seals, thiab sealing washers.
Cov roj hmab polyurethane, yog ib yam polymer ua los ntawm cov khoom siv hluavtaws, ua kom qhov sib txawv ntawm cov roj hmab ntuj thiab cov yas ib txwm muaj. Feem ntau siv rau hauv kev ua cov hlau ntawv siab, cov roj hmab polyurethane uas hais txog yog hom polyester casting. Nws yog synthesized los ntawm adipic acid thiab ethylene glycol, ua rau muaj cov polymer nrog qhov hnyav molecular ntawm kwv yees li 2000. Cov polymer no tau reacted ntxiv los ua ib qho prepolymer nrog cov pab pawg kawg isocyanate. Cov prepolymer tom qab ntawd sib xyaw nrog MOCA (4,4′-methylenebis(2-chloroaniline)) thiab pov rau hauv pwm, ua raws li kev vulcanization theem ob los tsim cov khoom roj hmab polyurethane nrog ntau qib hardness.
Qhov nyuaj ntawm cov roj hmab polyurethane foob tuaj yeem hloov kho kom ua tau raws li cov kev cai ua cov hlau tshwj xeeb, xws li ntawm 20A txog 90A ntawm qhov ntsuas Shore hardness.
Cov Yam Ntxwv Tseem Ceeb ntawm Kev Ua Tau Zoo:
- Kev Tiv Thaiv Kev Hnav Zoo Tshaj Plaws: Cov roj hmab Polyurethane muaj kev tiv thaiv kev hnav zoo tshaj plaws ntawm txhua hom roj hmab. Kev kuaj hauv chav kuaj qhia tau tias nws qhov kev tiv thaiv kev hnav yog 3 txog 5 npaug ntawm cov roj hmab ntuj, nrog rau kev siv hauv ntiaj teb tiag tiag feem ntau qhia txog li 10 npaug ntawm kev ruaj khov.
- Lub Zog Muaj Zog thiab Elasticity: Hauv Shore A60 txog A70 qhov nyuaj, roj hmab polyurethane qhia tau tias muaj zog thiab elasticity zoo heev.
- Kev Tiv Thaiv Zoo Tshaj Plaws thiab Kev Nqus Tau Kev Co: Thaum sov li chav tsev, cov khoom siv roj hmab polyurethane tuaj yeem nqus tau 10% txog 20% ntawm lub zog co, nrog rau kev nqus tau ntau dua ntawm cov zaus co ntau dua.
- Kev Tiv Thaiv Roj Thiab Tshuaj Zoo: Cov roj hmab Polyurethane qhia tau tias muaj kev sib raug zoo tsawg heev rau cov roj av uas tsis yog polar thiab tseem tsis cuam tshuam los ntawm roj (xws li kerosene thiab roj av) thiab cov roj siv tshuab (xws li cov roj hydraulic thiab cov roj lubricating), ua tau zoo dua li cov roj hmab dav dav thiab cov roj hmab nitrile sib tw. Txawm li cas los xij, nws qhia tau tias muaj kev loj hlob ntau hauv cov cawv, esters, thiab cov hydrocarbons aromatic.
- Cov Coefficient Sib Txhuam Siab: Feem ntau siab dua 0.5.
- Cov Khoom Ntxiv: Kev tiv taus kub qis zoo, tiv taus ozone, tiv taus hluav taws xob, rwb thaiv hluav taws xob, thiab cov khoom nplaum.
Cov ntawv thov:
Vim nws cov khoom siv lub cev thiab cov khoom siv kho tshuab zoo heev, roj hmab polyurethane feem ntau siv rau hauv cov ntawv thov ua haujlwm siab, suav nrog cov khoom siv uas tiv taus kev hnav, cov khoom siv roj uas muaj zog heev, thiab cov khoom siv uas muaj zog thiab modulus siab. Nws pom tias siv dav hauv ntau yam lag luam:
- Tshuab thiab Tsheb: Tsim cov khoom siv nres tsheb uas muaj zaus siab, cov khoom siv roj hmab tiv thaiv kev co, cov roj hmab caij nplooj ntoos hlav, cov khoom sib txuas, thiab cov khoom siv tshuab textile.
- Cov Khoom Uas Tiv Thaiv Tau Roj: Tsim cov menyuam luam ntawv, cov ntsaws ruaj ruaj, cov thawv roj, thiab cov ntsaws ruaj ruaj roj.
- Kev Sib Txhuam Hnyav: Siv rau hauv cov kav dej conveyor, cov khoom siv sib tsoo, cov ntxaij vab tshaus, cov lim dej, cov khau hauv qab, cov log tsav sib txhuam, cov bushings, cov ntaub nres, thiab cov log tsheb kauj vab.
- Kev Nias Txias thiab Khoov: Ua haujlwm ua cov khoom siv rau cov txheej txheem nias txias thiab khoov tshiab, hloov cov pwm hlau uas siv sijhawm thiab kim.
- Roj Hmab Ua Npuas Ncauj: Los ntawm kev siv cov tshuaj tiv thaiv ntawm cov pab pawg isocyanate nrog dej kom tso CO2 tawm, roj hmab ua npuas ncauj sib dua nrog cov khoom siv kho tshuab zoo heev tuaj yeem tsim tau, zoo tagnrho rau kev rwb thaiv tsev, rwb thaiv tsev kub, tiv thaiv suab nrov, thiab tiv thaiv kev co.
- Kev Siv Kho Mob: Siv rau hauv cov khoom siv roj hmab ua haujlwm, cov hlab ntsha dag, daim tawv nqaij hluavtaws, cov raj xa dej, cov khoom kho, thiab cov ntawv thov kho hniav.
Lub sijhawm tshaj tawm: Cuaj hlis-17-2025