TPU (Thermoplastic Polyurethane) yog cov khoom siv ua haujlwm siab - ua ke nrog lub zog ntawm cov yas nrog elasticity ntawm roj hmab. Cov yam ntxwv los ntawm kev elasticity siab, hnav tsis kam, tsis muaj dej thiab ua pa, huab cua tsis kam, thiab eco-kev phooj ywg, TPU films tau siv dav hauv cov khoom xws li cov khaub ncaws hnav, kev sib khi, cov khoom siv kho mob, tsheb sab hauv, thiab ntim khoom siv hluav taws xob. Lawv muaj nyob rau hauv customizable hardness theem kom tau raws li ntau haiv neeg cov kev cai molding.
Tam sim no muaj peb txoj hauv kev tseem ceeb rau TPU films:
1. Cast film txheej txheem: Siv high-precision T-tuag extrusion los tsim cov yeeb yaj kiab nrog tus du, meej nto thiab tuab tuab; nws yog qhov kev xaiv zoo tshaj plaws rau siab -kawg waterproof, breathable films thiab composite substrates.
2. Blown zaj duab xis txheej txheem: Muab cov nqi zoo tshaj -kev ua tau zoo thiab siab toughness vim biaxial stretching; feem ntau yog siv rau ntim elastic, airbag films, thiab cov ntawv zoo sib xws.
3. Cov txheej txheem Calendering: Haum rau cov ntawv tuab TPU nrog zoo heev flatness; nquag siv rau hnav-cov ntaub ntawv tiv taus, cov ntawv ua haujlwm, thiab lwm yam.
Cov teeb meem thiab cov kev daws teeb meem hais txog TPU zaj duab xis ua cov ntsiab lus hauv qab no:
1. Qhov teeb meem: Cua npuas ntawm cov yeeb yaj kiab nto. Ua rau: ① Cov dej noo ntau hauv TPU pellets; ② Kub ua haujlwm ntau dhau.
Kev daws: ① Ua kom qhuav cov khoom siv raw kom cov dej noo hauv qab 0.03%; ② Txhim kho qhov kub thiab txias ntawm qhov chaw ntawm lub thoob.
2. Qhov teeb meem: Unmelted particles los yog "ntses ob lub qhov muag" (gel specks) nyob rau saum npoo. Ua rau: ① Ua tsis tiav yaj plasticization; ② Localized crystallization nyob rau hauv lub taub hau tuag (muaj cov khoom txias); ③ Impurities hauv cov khoom siv raw.
Cov kev daws teeb meem: ① Ua kom lub plasticization kub kom tsim nyog thiab siv cov ntsia hlau tshwj xeeb tsim rau TPU; ② tsa lub taub hau kub kom tshem tawm cov khoom, tom qab ntawd txo nws mus rau qhov tsim nyog ua haujlwm kub; ③ Nruab ib lub 80-120 mesh npo los lim tawm impurities.
3. Qhov teeb meem: Cov yeeb yaj kiab tsis sib xws. Ua rau: ① Tsis yog-uniform tuag gap; ② Kev hloov pauv loj hauv lub taub hau tuag; ③ Kev thauj tsis ruaj khov- tawm ceev. Kev daws: ① Calibrate qhov sib txawv tuag thoob plaws nws qhov dav; ② Siv lub twj tso kua mis kom ruaj khov; ③ Siv lub kaw - voj ceev tswj qhov system kom ntseeg tau tias kev thauj mus tas li - tawm ceev.
4. Cov teeb meem tshwm sim: Cov kab ntws ntws los yog streaks. Ua rau Kev Ntsuam Xyuas: ① Cov chaw tuag nrog cov khoom tsim hauv cov dej ntws ntws; ② Tsis zoo tuag taub hau kub; ③ Cov dej noo ntau dhau ntawm cov khoom siv raw.
Cov kev daws teeb meem: ① Disassemble thiab ntxuav tawm cov khoom seem ntawm qhov tuag ntws, lossis ntxuav cov channel los ntawm kev nce qhov kub; ② Kho lub taub hau kub rau qhov tsim nyog; ③ Ua kom qhuav cov khoom siv raw (nrog rau cov masterbatch lossis regrind).
5. Cov teeb meem tshwm sim: daj / dub impurities los yog dub specks. Ua rau Kev Ntsuas: ① Carbonized cov khoom tso rau ntawm lub hau los yog lub taub hau tuag; ② Kev ua haujlwm kub ntau dhau ua rau thaj chaw thermal decomposition ntawm TPU; ③ Kev kis kab mob los ntawm txawv teb chaws impurities.
Kev daws: ① Tsis tu ncua ntxuav lub thoob, ntsia hlau, thiab lub taub hau tuag; ② Txo qhov ua haujlwm kub kom tsim nyog kom tsis txhob muaj cua sov hauv zos; ③ Tshawb xyuas cov ntim khoom raw ua ntej qhib thiab siv plua plav- tiv thaiv kev ntsuas thaum lub sijhawm pub mis.
6. Cov teeb meem tshwm sim: Screen Clogging. Ua rau: ① Ntau dhau impurities nyob rau hauv raw cov ntaub ntawv sai sai nyob rau hauv lub screen nto; ② Screen mesh loj yog qhov zoo heev, overloading lub peev xwm pom ib cheeb tsam; ③ Cov kub yaj uas tsis tshua muaj nyob hauv ib cheeb tsam ua rau siab - viscosity clumps uas ceev nrooj cov mesh; ④ Hard carbonized hais los ntawm thermal degradation sai thaiv qhov screen. Kev daws: ① Txhim kho cov khoom siv raw khoom ua ntej; yog siv regrind, txo los yog tshem tawm cov khoom uas muaj impurity siab; ② Xaiv ib qho kev tshuaj ntsuam mesh ua ke (40-120 mesh) raws li cov khoom siv kom tsis txhob muaj cov mesh zoo heev; ③ Kho lub thoob thiab tuag qhov kub thiab txias kom ntseeg tau tias cov yas yaj zoo ib yam thiab tshem tawm hauv zos qis- kub, siab - viscosity yaj; ④ Kev ua haujlwm qis me ntsis kom txo cov khoom degradation; Hloov lub vijtsam tam sim yog tias qhov siab tshaj qhov qub los ntawm 15%.
7. Cov teeb meem tshwm sim: Rough, Dull Film Surface. Ua rau: ① Plasticization kub tsis txaus; ② Tsawg tuag taub hau kub; ③ Qhov ntsuas cua txias tsis raug. Cov kev daws teeb meem: ① Ua kom kub ntawm plasticization; ② Ua kom tuag lub taub hau kub kom ntseeg tau tias yaj ntws; ③ Kho cov dej txias kom txias mus rau theem tsim nyog.
8. Cov teeb meem tshwm sim: Kev thaiv zaj duab xis (sticking) thaum lub caij cua. Ua rau: ① Tshaj kub kub ntawm qhov tuag tawm; ② Tsis txaus cua txias thiab teeb tsa ntawm zaj duab xis.
Cov kev daws teeb meem: ① Txo qhov kub thiab txias ntawm qhov tawm ntawm qhov tuag; ② Txhim kho qhov ua kom txias txias ntawm cov yob yob; ③ Ntxiv qhov kev faib ua feem tsim nyog ntawm TPU- tshwj xeeb tiv thaiv- tus neeg saib xyuas thaiv.
Yuav tsum tau txuas ntxiv ...
Yantai Leo Cov Khoom Siv Tshiab muaj -cov yeeb yaj kiab TPU zoo ntawm tus nqi tsim nyog. Peb zoo siab tos txais koj cov lus nug thiab kev txiav txim!
Hu rau: Mr. Lee
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