Kev cai polyurethane log rau hnyav Loads

Peb lub tuam txhab tau mob siab rau kev tshawb fawb thiab kev tsim kho, tsim khoom, thiab muag khoom ntawm polyurethane khoom rau ze li ntawm 20 xyoo txij li thaum nws tsim. Cov khoom tseem ceeb uas tsim muaj xws li polyurethane log, polyurethane sieves, polyurethane boards, polyurethane cua kav, polyurethane coke tu pob, thiab lwm yam. Tom qab xyoo ntawm txoj kev loj hlob, peb muaj ib tug muaj zog technical team, ntau lawm, thiab pab neeg muag khoom. Peb cov kev cai polyurethane log rau cov khoom hnyav tau txais kev qhuas zoo los ntawm cov neeg siv khoom rau lawv cov khoom zoo - cov khoom zoo thiab tus nqi tsim nyog. Txais tos tuaj xyuas lub Hoobkas txhua lub sijhawm.

Kev tsim cov kev cai polyurethane log rau cov khoom hnyav yog cov txheej txheem engineering uas xav tau kev saib xyuas zoo rau cov ntaub ntawv, kev ua haujlwm, thiab kev tswj kom zoo.

1. Kev xaiv & kev tsim khoom

Rau cov ntawv siv hnyav-cov haujlwm, siab-kev ua tau zoo polyurethane elastomers yog qhov kev xaiv. Piv txwv li, NDI-raws li cov tshuab qhia tshwj xeeb ua haujlwm nyob rau hauv siab- nrawm thiab hnyav-load tej yam kev mob, whereas MDI/TDI-raws li systems yog tus nqi ntau dua- zoo thiab haum rau kev siv dav dav. Txhawm rau kom muaj zog txaus, cam khwb cia polyurethane yuav tsum ua tiav lub zog tensile tshaj 50 MPa thiab DIN puas poob qis dua 30 mm³. Hardness, uas ncaj qha cuam tshuam rau load{12}}cov kabmob muaj peev xwm thiab dov tsis kam, yuav tsum tswj kom meej. Rau hnyav-load daim ntawv thov nrog ceev tshaj 3 m / s, ib tug hardness ntawm Greater los yog sib npaug rau 90 Shore A yog pom zoo. Thaum hardness tuaj yeem hloov kho los ntawm kev hloov kho cov prepolymer, saw extender, lossis additives, nws yuav tsum tau muab sau tseg tias kev siv cov plasticizers soften cov khoom yuav cuam tshuam qee yam khoom ntawm lub cev.

2. Core Preparation & Chemical Bonding

Ua ntej casting, hlau cores (feem ntau yog ua los ntawm siab - lub zog steel los yog aluminium alloy) yuav tsum tau degreased thiab huv si, ua raws li los ntawm sandblasting los yog tshuaj etching kom nto roughness -ib kauj ruam tseem ceeb rau kev txhawb nqa tom qab adhesion. Chemical bonding yog cov thev naus laus zis tseem ceeb uas tiv thaiv kev delamination hauv hnyav- log log. Los ntawm kev siv cov nplaum tshwj xeeb rau cov tub ntxhais hlau pretreated ua ntej polyurethane casting, kev sib cog lus lub zog zoo dua li ntawm kev sib cuam tshuam ntawm cov neeg kho tshuab ntshiab tuaj yeem ua tiav. Lub siab -cov tshuaj nplaum zoo tuaj yeem xa cov tev lub zog ntau dua 15 kN / m thiab tiv taus lub zog ntawm ntau tshaj 1,500 kg, tshem tawm qhov kev sib cais los ntawm kev tsim hluav taws xob ntau dhau los ntawm kev sib tw.

3. Casting, Degassing & Curing (Vulcanization)

Precision casting requires accurate metering and thorough mixing of the liquid polyurethane components, followed by vacuum degassing prior to mold injection to eliminate entrapped air and ensure a dense, defect-free finished product. Tom qab casting, siab -kub vulcanization (piv txwv li, ntawm 100-150 degree) yog ua los pib cov tshuaj tiv thaiv crosslinking thiab stabilize lub polymer network. Qhov no yog ib kauj ruam uas tswj tau heev, qhov tseeb qhov kub thiab lub sij hawm ncaj qha cuam tshuam qhov sib xws ntawm cov khoom kawg cov khoom. Post-kev kho yog qhov tseem ceeb sib npaug: demolding tsis txhais tau tias ua tiav cov tshuaj tiv thaiv. Cov log yuav tsum tau muab tso rau hauv qhov cub ntawm kwv yees li 200℃F (≈93 degree) rau ob peb teev kom tsav cov tshuaj tiv thaiv mus rau kev hloov pauv tag nrho. Kev ua haujlwm tsis txaus- kho tuaj yeem tiv thaiv lub log kom tsis txhob muaj lawv cov yam ntxwv ua tau zoo.

4. Kev Tshuaj Xyuas Zoo & Kev Ntsuas Kev Ua Haujlwm

Tshaj li niaj hnub kev soj ntsuam pom thiab qhov ntev, kev cai polyurethane lub log rau cov khoom hnyav yuav tsum tau soj ntsuam kev ua tau zoo, suav nrog kev ntsuas qhov sib npaug, kev ntsuas lub peev xwm thauj khoom (feem ntau ntawm 1.5 npaug ntawm qhov ntsuas load rau 24 xuab moos, nrog deformation tsawg dua lossis sib npaug li 5%), thiab kev ntsuas kev ua haujlwm tsis zoo (piv txwv li, kev ua haujlwm ntawm lub neej) thiab IN abrasion. tiag -lub ntiaj teb kev ua haujlwm.

Cim npe nrov: kev cai polyurethane log rau hnyav loads, Tuam Tshoj, manufacturers, hoobkas, customized, luv nqi, ua nyob rau hauv Suav teb