Nrog rau kev txhim kho txuas ntxiv ntawm kev lag luam thiab kev vam meej hauv zej zog, nws tau muab ntau cov khoom siv rau cov neeg siv khoom, tsim cov xwm txheej zoo rau kev txhim kho tib neeg txoj kev noj qab haus huv thiab ua raws li tus kheej lub neej, yog li ua kom ceev cov khoom siv khoom siv, thiab TPU. cov khoom yog ib qho ntawm lawv, yog li dab tsi yuav tsum tau them nyiaj rau hauv TPU txhaj tshuaj molding txheej txheem? Tom ntej no, peb yuav qhia kom meej.
1. Kev txhaj tshuaj ceev thiab txoj hauj lwm ntawm kev hloov siab yuav tsum tau teem kom raug. Kev teeb tsa txoj haujlwm tsis raug yuav ua rau muaj qhov nyuaj ntawm kev tsom xam, uas tsis yog qhov tsim nyog rau kev hloov kho sai thiab raug.
2. Thaum cov dej noo ntawm TPU ntau tshaj 0.2%, nws yuav tsis tsuas cuam tshuam rau cov tsos ntawm cov khoom, tab sis kuj cov khoom siv kho mob yuav pom tau tias tsis zoo, thiab cov khoom txhaj tshuaj molded yuav tsis muaj elasticity thiab tsis muaj zog. Yog li ntawd, nws yuav tsum tau qhuav ntawm qhov kub ntawm 80 ° C mus rau 110 ° C rau 2 mus rau 3 teev ua ntej txhaj tshuaj molding.
3. Kev tswj kev ua haujlwm kub muaj qhov tseem ceeb ntawm qhov kawg ntawm qhov loj me, cov duab thiab deformation ntawm cov khoom. Kev ua haujlwm kub nyob ntawm qib TPU thiab cov xwm txheej tshwj xeeb ntawm pwm tsim. Cov qauv dav dav yog tias kom tau txais me me shrinkage, nws yog ib qho tsim nyog yuav tsum tau ua kom qhov kub thiab txias.
4. Kev tuav qeeb thiab lub sij hawm ntev yuav ua rau kev taw qhia molecular. Txawm hais tias nws muaj peev xwm tau txais cov khoom me me, cov khoom deformation loj, thiab qhov sib txawv ntawm transverse thiab longitudinal shrinkage yog loj. Loj tuav lub siab kuj tseem yuav ua rau cov colloid over-compressed nyob rau hauv pwm, thiab qhov luaj li cas ntawm cov khoom tom qab demolding yog loj dua qhov luaj li cas ntawm cov pwm kab noj hniav.
5. Kev xaiv ntawm kev txhaj tshuaj molding tshuab qauv yuav tsum tsim nyog. Me metxhaj tshuaj molding khoomyuav tsum tau xaiv cov tshuab txhaj tshuaj me me raws li qhov ua tau, txhawm rau txhawm rau txhawm rau txhawm rau txhaj tshuaj, pab tswj txoj haujlwm, thiab tsim nyog hloov kev txhaj tshuaj nrawm thiab siab.
6. Lub thoob ntawm lub tshuab txhaj tshuaj molding yuav tsum tau muab ntxuav, thiab kev sib xyaw ntawm ob peb lwm cov ntaub ntawv raw yuav txo cov neeg kho tshuab lub zog ntawm cov khoom. Cov thoob uas tau ntxuav nrog ABS, PMMA thiab PE yuav tsum tau muab ntxuav dua nrog TPU nozzle cov khoom ua ntej txhaj tshuaj kom tshem tawm cov khoom seem hauv lub thoob. Thaum tu lub hopper, kev saib xyuas tshwj xeeb yuav tsum tau them rau kev tu me me ntawm cov khoom siv raw nrog rau lwm cov khoom hauv kev sib txuas ntawm lub hopper thiab lub hauv paus ntawm lub tshuab txhaj tshuaj molding. Qhov no yog yooj yim overlooked los ntawm feem ntau technical neeg ua hauj lwm nyob rau hauv ntau lawm.
Post lub sij hawm: Lub Xya hli ntuj-13-2022
