Dab tsi yog cov yam ntxwv ntawm PU Ua Npuas Ncauj Tshuab Rau Tsheb Rooj?

1. Paub qhov txawv ntawm pwm kub

1)Thermal foaming:

Tom qab lub tshuab ua tiav, cov pwm tau muab tso rau hauv qhov cub ntawm 220-250℃(tsis qis dua 180℃), thiab tom qab cov tshuaj tiv thaiv tiav, nws raug muab tshem tawm thiab demolded.

Cov txiaj ntsig: Tsawg Npuas Ncauj Quav, Kev Ua Phem Zoo Tshaj Plaws Ua Haujlwm, tsis tas yuav tsum muaj kev qhib cais.Tus nqi pwm yog tsawg.

Disadvantages: siab zog noj.Lub qhov cua yog ib qho yooj yim los tsim "nceb taub hau", uas ua rau ntau cov ntaub ntawv pov tseg.Tom qab ntawm qhov chaw tu thiab tu cov cuab yeej muaj teeb meem ntau dua.

2)Txias foaming

Nws yog feem ntau tsim raws li ib tugmulti-station turntable ntau lawm kab.Cov pwm feem ntau yog cua sov rau 45-70℃los ntawm lub tshuab pwm kub, thiab tom qab ntawd demolded tom qab cov tshuaj tiv thaiv foaming tiav los ntawm pouring cov khoom PU.Tom qab demoulding, cov khoom yuav tsum tau siv lub tshuab ua npuas ncauj los pab qhib lub qhov.Qhov zoo: Kev siv hluav taws xob tsawg, cov khoom siv huv si thiab kev saib xyuas yooj yim Disadvantages: Cov cuab yeej siv tau yooj yim dua thiab cov khoom siv raug nqi siab.Ua npuas ncauj thermalization kev ua tau zoo yog qhov nruab nrab.

2. Distinguishes los ntawm nto adsorption

1) Pleev xim av:

Lub npe tsis zoo rau lub tswv yim ntawm adsorption thiab foaming, cov ntaub yuav tsis raug muab tso rau hauv pwm, thiab qhov chaw ntawm cov khoom foamed yog PU txheej.Noodles yog tag nrho sib dhos tom qab ua tiav.Cov tsheb thauj neeg feem ntau siv cov txheej txheem foaming no.

2) Adsorption ua npuas ncauj

Ua ntej nchuav, ua ntej tso cov ntaub rau hauv cov pwm kab noj hniav, ua kom nws haum zoo los ntawm kev nqus thiab adsorption, thiab tom qab ntawd ncuav cov khoom PU.Tom qab foaming, txheej txheej ntawm molded PU khoom yog nruj nreem txuas rau cov ntaub.Kev tsim kho tshuab cov rooj zaum muaj feem ntau yuav siv cov txheej txheem foaming no.

3. Paub qhov txawv ntawm hardness

1) Ib leeg hardness ua npuas ncauj:

Nws yog qhov yooj yim tshaj plaws foaming, ib qho qauv, ib qho nchuav, tsis muaj lwm yam kev pabcuam, thiab cov khoom ua npuas ncauj nthuav tawm tsuas muaj ib qho nyuaj.

2) Ob chav hardness ua npuas ncauj

Double-hardness ua npuas ncauj yog qhov muag ntawm ntau lub tsheb khoom kim heev.Qhov chaw caij tsheb yog softer, thiab cov chaw txhawb nqa ntawm ob sab yog nyuaj, uas tuaj yeem muab kev nplij siab ntau dua.Txoj hauv kev ua kom tiav qhov no yog siv qhov chaw zaum thiab ob sab ntawm thaj chaw kom ncuav sib cais, thiab ua kom tiav dual-hardness lossis ntau qhov sib txawv ntawm cov khoom los ntawm kev tso cov pwm ntawm lub kaum sab xis, ntxiv cov khoom siv trough ntawm cov khoom. ob lub tis thiab qhov chaw zaum, thiab ntxiv cov ntxig rau ntawm ob sab ntawm cov npuas dej..Cov txheej txheem foaming no tuaj yeem ua tiav peb qhov hardness, tab sis feem ntau tsis ntau.Hauv kev lag luam, nws tseem hu ua ob-qhov ntom ntom foaming, uas yog qhov tseeb ntawm tus nplaig.Lub hom phiaj ntawm cov txheej txheem yog kom tau qhov sib txawv hardness, tsis yog ntom.Thiab qee zaum ib qhov ceev tuaj yeem ua rau ob qhov sib txawv hardness.Cov neeg tsim khoom lag luam uas paub txog cov txheej txheem foaming no feem ntau yuav tsum tau nruab nrog cov neeg ua haujlwm txawj uas txawj kho cov ntaub ntawv sib xyaw ua ke, vim tias lawv yuav tsum paub txog cov kev hloov pauv thiab kev hloov pauv ntawm ntau cov qauv.