PU pads (polyurethane pads), raws li qhov siab -cov ntaub ntawv cushioning, yog siv dav hauv cov rooj zaum hauv tsheb, rooj tog zaum, khoom siv hauv tsev, thiab lwm yam. Lawv cov txheej txheem ntau lawm suav nrog ntau cov kauj ruam meej, yuav tsum muaj kev tswj hwm nruj ntawm cov khoom siv raw, qhov kub thiab txias, thiab pwm pwm kom ntseeg tau cov khoom zoo thiab kev ua haujlwm zoo.
Kev npaj cov khoom raw yog thawj kauj ruam hauv kev tsim khoom. Cov ntaub ntawv tseem ceeb rau PU pads yog polyol thiab isocyanate, uas yog sib xyaw rau hauv ib qho piv txwv tshwj xeeb thiab dhau los ua cov tshuaj tiv thaiv polymerization los tsim polyurethane ua npuas ncauj. Tsis tas li ntawd, catalysts, foaming agents, stabilizers, thiab lwm yam additives yog ntxiv los kho cov tshuaj tiv thaiv tus nqi, npuas qauv, thiab cov khoom stability. Lub purity thiab piv ntawm cov ntaub ntawv raw ncaj qha cuam tshuam qhov ntom, elasticity, thiab durability ntawm cov khoom kawg.
Kev sib tov thiab foaming yog cov txheej txheem tseem ceeb. Cov polyol thiab isocyanate tau sib xyaw kom huv si hauv lub siab - sib tov ceev, thaum tus neeg ua npuas ncauj (xws li tus neeg ua npuas ncauj lossis dej ua cov tshuaj foaming) yog txhaj. Tom qab sib tov sib xyaw, cov khoom nkag mus rau hauv lub pwm lossis lub tshuab ua npuas dej, qhov twg cov tshuaj tiv thaiv pib ntawm qhov kub thiab txias (feem ntau yog 40-60 degree), ua cov pa roj carbon dioxide, ua rau cov sib tov nthuav thiab tsim cov qauv ua npuas ncauj. Cov txheej txheem no yuav tsum muaj kev tswj xyuas meej ntawm lub sijhawm thiab qhov kub thiab txias kom tsis txhob muaj dej ntau dhau lossis tawg.
Nyob rau hauv lub molding thiab curing theem, cov hmoov sib tov yog txhaj rau hauv pre-pwm pwm thiab solidified nyob rau hauv high kub (kwv yees li 80-100 degree) thiab siab siab. Kev tsim pwm yuav tsum xav txog cov khoom loj, tuab, thiab cov qauv sab hauv kom ntseeg tau tias muaj cua sov zoo ib yam. Lub sij hawm kho feem ntau yog nyob ntawm ob peb feeb mus rau ob peb teev, nyob ntawm qhov tsim thiab cov khoom yuav tsum tau ua. Tom qab kho, PU ncoo raug tshem tawm los ntawm cov pwm thiab ua tiav thawj zaug trimming.
Ncej - kev ua haujlwm suav nrog kev txiav, xuab zeb, thiab kho qhov chaw. Raws li cov neeg siv khoom xav tau, PU pads yuav xav tau CNC txiav, stamping, lossis thermoforming kom ua tiav qhov ntev. Qee cov khoom lag luam kuj xav tau txheej txheej los yog ntaub lamination los txhim kho kev puas tsuaj lossis kev zoo nkauj. Finally, the finished product undergoes rigorous quality testing, including density testing, resilience assessment, and durability testing, to ensure compliance with industry standards.
Cov txheej txheem tsim khoom ntawm PU pads integrates chemical, mechanical, and material science. Txhua kauj ruam yuav tsum muaj kev tswj xyuas kom ua tau siab -kev ua tau zoo, cov ntaub ntawv cushioning zoo heev uas ua tau raws li cov kev xav tau ntawm ntau yam kev lag luam.
