Dab tsi yog qhov tsis zoo ntawm polyurethane casters?

Tsib qhov tseem ceeb ntawm Polyurethane Casters

Txawm hais tias lawv cov txiaj ntsig tseem ceeb, Polyurethane Casters tseem muaj tsib qhov tsis txaus siab nram qab no vim muaj kev txwv hauv cov khoom siv thiab cov txheej txheem kev tsim khoom. Yog li, ceev faj xaiv yog qhov tseem ceeb heev raws li kev npaj siv cov xwm txheej:

Ua ntej, Polyurethane casters tau txwv siab - kub tsis kam. Cov ntaub ntawv Polyurethane muaj qhov qis qis rau qhov siab- kub kuj, feem ntau softening saum 80 degree. Saum toj no 120 degree, lub tread yog nquag mus deformation, nyem, lossis txawm melting. Cov ntaub ntawv no tsis haum rau cov chaw sov xws li cov hauv ncu thiab ntawm kev txwv kub thiab kub.

Thib ob, lawv qhov qis - kub qhov kub me me txo qis. Thaum lub caij nyoog kub poob qis dua hauv qab -30 degree, lub sij hawm ntawm polyurethane lwg txo, ua rau cov khoom siv kom maj mam nyuaj thiab poob nws txoj kev elasticity. Qhov no cuam tshuam txo cov txiaj ntsig kev poob siab thaum lub rolling, thiab cov tsuj tsis tau ntau dua thaum muaj kev cuam tshuam tsawg dua, luv luv lub neej. Cov khoom siv no tau ua tsis tau zoo rau siv nyob rau hauv ib puag ncig hnyav xws li sab nraum zoov thaj chaw nyob rau sab qaum teb Winters thiab hauv chaw kaw khoom txias.

Thib peb, lawv cov nqi siab. Piv rau cov roj hmab zoo tib yam thiab cov khoom siv yas, polyurethane cov khoom nws tus kheej muaj txiaj ntsig ntau dua li cov khoom siv sib xyaw. Raws li qhov tshwm sim, tus nqi tag nrho ntawm polyurethane casters yog feem ntau 2 - 3 zaug ntawm cov yas casters ntawm tib cov lus qhia, thiab 1.5-2 lub sij hawm uas ntawm roj hmab casters. Qhov no nce cov khoom siv peev nyiaj rau kev yuav khoom thiab cov ntawv thov uas muaj nqi (xws li chaw khaws cia ib ntus).

Plaub, polyurethane muaj kev tsis zoo rau cov tshuaj muaj zog. Thaum polyurethane tuaj yeem tiv thaiv cov roj me me thiab cov kua qaub tsis muaj zog (xws li cov pa roj ntsha (xws li sodium hydroxide tov), ​​ua rau tsuj taws thiab tawg. Qhov no ua rau nws tsis zoo rau ntev - TSHEM siv hauv kev tiv thaiv kev ua kom haum zoo xws li kev cob qhia tshuaj lom neeg thiab kuaj cov tsheb thauj mus los.

Qhov thib tsib, nws yog me ntsis hnyav dua li lub teeb castweight. Txhawm rau kom lo lo load -} cov kabmob thiab coj cov khoom lag luam tsis kam, polyurethane casters thiab feem ntau ua khub nrog cov hub steel. Qhov hnyav tag nrho yog 30% -50% hnyav dua li cov khoom siv yas ntawm tib qho kev qhia tshwj xeeb. Rau cov xwm txheej uas yuav tsum tau txav mus los thiab muaj qhov hnyav ntawm cov khoom siv tshuaj tua hluav taws), qhov no yuav ua rau lub nra portable thaum ua haujlwm.