1. Qhov sib piv ntawm cov ntsia hlau extruder ib leeg yog qhov tsim nyog ntawm 1: 2-1: 3, zoo dua yog 1: 2.5, thiab qhov ntev thiab txoj kab uas hla ntawm peb theem yog 25. Kev tsim cov ntsia hlau zoo tuaj yeem tiv thaiv cov khoom tawg thiab tawg los ntawm kev sib txhuam hnyav. Xav tias qhov ntev ntawm cov ntsia hlau yog L, qhov seem pub yog 0.3L, qhov seem compression yog 0.4L, qhov seem metering yog 0.3L, thiab qhov sib txawv ntawm lub thoob ntsia hlau thiab cov ntsia hlau yog 0.1-0.2 hli. Lub phaj honeycomb ntawm lub taub hau ntawm lub tshuab yuav tsum muaj 1.5-5 hli qhov, siv ob lub lim dej 400 qhov / cmsq (kwv yees li 50 mesh). Thaum extruding cov hlua khi pob tshab, feem ntau yuav tsum muaj lub cev muaj zog dua kom tiv thaiv lub cev muaj zog los ntawm kev nres lossis hlawv tawm vim muaj kev thauj khoom ntau dhau. Feem ntau, PVC lossis BM ntsia hlau muaj, tab sis cov ntsia hlau luv luv tsis tsim nyog.
2. Qhov kub ntawm cov pwm nyob ntawm cov ntaub ntawv ntawm cov chaw tsim khoom sib txawv, thiab qhov nyuaj dua, qhov kub ntawm extrusion siab dua. Qhov kub ntawm kev ua khoom nce ntxiv 10-20 ℃ los ntawm qhov chaw pub mis mus rau qhov chaw ntsuas.
3. Yog tias qhov ceev ntawm lub hau ntswj ceev dhau thiab qhov sib txhuam kub dhau vim yog kev ntxhov siab ntawm shear, qhov kev teeb tsa ceev yuav tsum tau tswj ntawm 12-60rpm, thiab tus nqi tshwj xeeb nyob ntawm lub taub hau ntawm lub hau ntswj. Qhov loj dua lub taub hau, qhov qeeb dua qhov ceev. Txhua yam khoom siv sib txawv thiab yuav tsum tau them sai sai rau cov kev cai ntawm tus neeg muag khoom.
4. Ua ntej siv, lub hau yuav tsum tau ntxuav kom huv si, thiab PP lossis HDPE siv tau rau kev ntxuav ntawm qhov kub siab dua. Cov tshuaj ntxuav kuj siv tau rau kev ntxuav.
5. Tus qauv tsim ntawm lub taub hau tshuab yuav tsum tau ua kom yooj yim thiab yuav tsum tsis muaj cov ces kaum tuag kom ntseeg tau tias cov khoom ntws du. Cov kab ntawm lub tes tsho pwm tuaj yeem nthuav dav kom raug, thiab lub kaum sab xis ntawm lub tes tsho pwm yog tsim los ntawm 8-12 °, uas yog qhov tsim nyog dua los txo qhov kev ntxhov siab shear, tiv thaiv kev poob qhov muag thaum lub sijhawm tsim khoom, thiab tswj cov nyiaj extrusion.
6. TPU muaj cov coefficient siab ntawm kev sib txhuam thiab nyuaj rau puab. Qhov ntev ntawm lub tank dej txias yuav tsum ntev dua li lwm cov khoom siv thermoplastic, thiab TPU nrog lub zog siab yooj yim dua rau kev tsim.
7. Cov hlau tseem ceeb yuav tsum qhuav thiab tsis muaj cov roj av kom tiv thaiv cov npuas dej kom tsis txhob tshwm sim vim cua sov. Thiab xyuas kom meej tias muaj kev sib xyaw zoo tshaj plaws.
8. TPU yog ib yam khoom uas yooj yim hygroscopic, thiab nws nqus tau dej sai sai thaum muab tso rau hauv huab cua, tshwj xeeb tshaj yog thaum cov khoom siv ether muaj hygroscopic ntau dua li cov khoom siv polyester. Yog li ntawd, nws yog ib qho tsim nyog los xyuas kom meej tias muaj kev sib khi zoo. Cov khoom siv yooj yim nqus dej ntau dua hauv qab qhov kub, yog li cov khoom seem yuav tsum tau kaw sai sai tom qab ntim khoom. Tswj cov dej noo hauv qab 0.02% thaum lub sijhawm ua tiav.
Lub sijhawm tshaj tawm: Lub Yim Hli-30-2023