Polyurethane roj hmab seals, crafted los ntawm polyurethane roj hmab cov ntaub ntawv, yog ib qho tseem ceeb Cheebtsam nyob rau hauv ib tug ntau yam ntawm kev lag luam kev siv. Cov ntsaws ruaj ruaj no tuaj yeem ua ntau hom, suav nrog O-rings, V-rings, U-rings, Y-rings, rectangular seals, custom-shaped seals, thiab sealing washers.
Polyurethane roj hmab, ib qho hluavtaws polymer, txuas qhov sib txawv ntawm cov roj hmab ntuj thiab cov khoom siv yas. Feem ntau siv nyob rau hauv cov ntawv hlau siab ua, cov roj hmab polyurethane hauv nqe lus nug yog feem ntau ntawm polyester casting hom. Nws yog synthesized los ntawm adipic acid thiab ethylene glycol, uas ua rau ib tug polymer nrog ib tug molecular hnyav ntawm kwv yees li 2000. Cov polymer no ntxiv reacted los ua ib tug prepolymer nrog isocyanate kawg pawg. Tom qab ntawd cov prepolymer yog tov nrog MOCA (4,4′-methylenebis (2-chloroaniline)) thiab cam khwb cia rau hauv pwm, ua raws li theem nrab vulcanization los tsim cov khoom siv roj hmab polyurethane nrog ntau qib hardness.
Lub hardness ntawm polyurethane roj hmab ntsaws ruaj ruaj tuaj yeem raug txiav kom ua tau raws li cov txheej txheem tshwj xeeb, xws li 20A txog 90A ntawm ntug dej hiav txwv hardness.
Cov yam ntxwv tseem ceeb ntawm kev ua haujlwm:
- Exceptional Wear Resistance: Polyurethane roj hmab ua pov thawj qhov hnav siab tshaj plaws ntawm txhua hom roj hmab. Cov kev kuaj sim qhia tias nws hnav tsis kam yog 3 mus rau 5 npaug ntawm cov roj hmab ntuj, nrog rau cov ntawv thov hauv ntiaj teb no feem ntau qhia txog 10 npaug ntawm kev ua haujlwm ntev.
- Siab zog thiab elasticity: Nyob rau hauv lub ntug dej hiav txwv A60 mus rau A70 hardness ntau yam, polyurethane roj hmab qhia lub zog siab thiab zoo elasticity.
- Superior Cushioning thiab Shock Absorption: Nyob rau hauv chav tsev kub, cov khoom siv roj hmab polyurethane tuaj yeem nqus tau 10% mus rau 20% ntawm lub zog vibration, nrog rau kev nqus ntau dua ntawm kev vibration ntau zaus.
- Cov roj thiab tshuaj lom neeg zoo: Cov roj hmab polyurethane qhia tau tias muaj kev sib raug zoo rau cov roj ntxhia uas tsis yog-polar thiab tseem tsis cuam tshuam los ntawm cov roj (xws li roj av thiab roj av) thiab cov roj siv tshuab (xws li hydraulic thiab lubricating roj), ua haujlwm zoo dua cov roj hmab thiab cov roj hmab nitrile. Txawm li cas los xij, nws nthuav tawm qhov o tseem ceeb hauv cawv, esters, thiab muaj ntxhiab hydrocarbons.
- High Friction Coefficient: Feem ntau siab dua 0.5.
- Ntxiv Cov Khoom: Zoo tsis kub tsis kam, ozone tsis kam, hluav taws xob tiv thaiv, hluav taws xob rwb thaiv tsev, thiab adhesion zog.
Daim ntawv thov:
Muab nws lub cev zoo tshaj plaws thiab cov khoom siv kho tshuab, cov roj hmab polyurethane feem ntau siv rau hauv cov ntawv thov kev ua haujlwm siab, suav nrog cov khoom hnav-tiv taus, cov khoom muaj zog roj-resistant, thiab high-hardness, high-modulus Cheebtsam. Nws pom kev siv dav hauv ntau yam kev lag luam:
- Machinery thiab Automotive: Kev tsim cov khoom siv hluav taws xob ntau zaus, cov khoom siv roj hmab tiv thaiv kev vibration, roj hmab springs, couplings, thiab textile machinery Cheebtsam.
- Cov khoom siv roj-Resistant: Ua cov tshuab luam ntawv, cov ntsaws ruaj ruaj, cov thawv ntim roj, thiab roj foob.
- Hnyav Friction Environments: Siv nyob rau hauv cov kav dej conveyor, sib tsoo cov khoom siv hauv ob sab phlu, cov ntxaij vab tshaus, cov ntxaij lim dej, khau khau, kev sib txhuam tsav log, bushings, nres nres, thiab cov log tsheb kauj vab.
- Cold Pressing and Bending: Ua cov khoom siv rau cov txheej txheem txias txias thiab khoov tshiab, hloov cov hlau tuag uas siv sijhawm ntev thiab kim.
- Ua Npuas Ncauj Roj Hmab: Los ntawm leveraging cov tshuaj tiv thaiv ntawm isocyanate pawg nrog dej tso tawm CO2, lub teeb yuag ua npuas ncauj roj hmab nrog cov khoom siv zoo heev tuaj yeem tsim tau, zoo tagnrho rau rwb thaiv tsev, rwb thaiv tsev kub, soundproofing, thiab anti-vibration daim ntaub ntawv.
- Kev Siv Kho Mob: Siv rau hauv cov khoom siv roj hmab, cov hlab ntsha, cov tawv nqaij hluavtaws, cov hlab ntsha, cov khoom siv kho hniav, thiab kev siv hniav.
Post lub sij hawm: Sep-17-2025