1. Puas yog cov roj exuded los ntawm TPE muaj teeb meem rau tib neeg lub cev?
Teb: Feem ntau cov roj ntxiv rau cov roj hmab yog cov roj tsw qab uas muaj benzene nplhaib, uas yog tshuaj lom. Cov roj ntxiv hauv TPE feem ntau yog cov roj naphthenic lossis roj paraffin. Cov roj softening no feem ntau yog cov hlua ncaj nraim hydrocarbon compound, uas feem ntau tsis muaj tshuaj lom. Tsuav nws tsis muab tso rau hauv lub qhov ncauj, nws tsis muaj kev phiv yog tias nws los rau hauv tib neeg lub cev (tawv nqaij).
Tswv yim: Qhov zoo ntawm cov roj siv hauv TPE yog qhov zoo lossis tsis zoo, thiab cov roj tsis zoo muaj cov ntxhiab tsw zoo. Nws raug nquahu kom xaiv cov roj uas tsis muaj ntxhiab tsw qab hydrogenated.
2. TPE|TPR puas tuaj yeem thaiv cov hlau?
Teb: Aluminium alloy thiab stainless hlau hlau tsis tuaj yeem raug kaw ncaj qha nrog TPE. Qhov no txawv ntawm TPE|TPR lagging yas. Txawm li cas los xij, nrog kev sib sib zog nqus ntawm daim ntawv thov TPE, ntau thiab ntau cov khoom yuav tsum tau siv TPE los encapsulate hlau. Yuav ua li cas encapsulate, muaj ob txoj kev:
ib. Nws yog ncaj qha "encapsulated"
Ntawd yog, TPE yog ncaj qha txhaj-muab mus rau saum npoo hlau yam tsis muaj qhov nruab nrab thib peb. Txawm li cas los xij, qhov ua tiav ntawm hom encapsulation no muaj kev sib raug zoo nrog cov qauv ntawm cov hlau uas yuav tsum tau encapsulated thiab hardness ntawm TPE.
Cov hlau qhov chaw yog encapsulated tag nrho, los yog lub encapsulation qauv ntawm cov hlau qhov chaw muaj ib tug loj curvature, los yog muaj qhov, thiab lwm yam., uas yuav ntxiv dag zog rau lub firmness ntawm TPE-coated hlau qhov chaw; Tsis tas li ntawd, qhov siab dua ntawm cov khoom siv TPE, kev sib xyaw ntawm TPE thiab hlau yuav raug ua. Lub ntsej muag yog firmer thiab firmer.
b. Nws yog encapsulated nrog nplaum
Qhov tseeb, ntau cov hlau encapsulation yog nyob hauv zos encapsulated. Txhawm rau kom ntseeg tau qhov ruaj khov ntawm kev sib txuas, nws yog qhov yuav tsum tau siv cov nplaum nplaum kom ua tiav qhov no.
Cov txheej txheem kev sib txuas tshwj xeeb yog: ua ntej, kho qhov chaw ntawm cov hlau los ntxuav cov plua plav thiab roj ntawm qhov chaw; tom qab ntawd xaiv cov nplaum tsim nyog thiab siv rau ntawm qhov chaw ntawm cov hlau; Tom qab cov nplaum rau ntawm qhov chaw ntawm cov hlau yog qhuav, tom qab ntawd kho cov hlau seem rau hauv pwm, thiab txhaj TPE rau saum npoo ntawm cov hlau kom tiav cov kev sib txuas thiab encapsulation.
Kev tsom xam: Yog tias cov ntaub ntawv tseem yog kua, muab tso rau hauv pwm rau kev txhaj tshuaj, thiab cov ntawv khi yuav raug ntxuav los ntawm qhov chaw ntawm cov hlau. Lub binder dries tawm, tab sis nws tseem yuav tsum tau nplaum thaum lub sij hawm kub molding, thiab lub adhesiveness ntawm cov kuab tshuaj volatile yog tsis tau. Nws yog ib qho tsim nyog yuav tau soj ntsuam thiab xaiv ib lub binder haum. Txawm li cas los xij, nws yog ib qho tsim nyog los xaiv cov nplaum sib xws raws li cov yam ntxwv ntawm cov khoom siv TPE.
3. Dab tsi yog vim li cas rau qhov tawg ntawm TPE|TPR cov khoom?
Teb: Muaj peb lub laj thawj tseem ceeb rau cov kab nrib pleb hauv TPE cov khoom!
ib. Fissure
Cov khoom yog oxidized los ntawm huab cua thiab ozone, ua rau kev laus thiab tawg. Qee cov khoom siv uas tsis tshua muaj hardness thiab nyias me me (tshwj xeeb tshaj yog SBS substrates),
Tom qab ob peb hnub ntawm huab cua, cov kab nrib pleb tshwm rau saum npoo!
b. Solvent action cracks
Qee cov khoom ua si uas yuav tsum tau txhaj roj, nrog rau qee qhov muag muag ntawm cov menyuam yaus khau, qee zaum muaj cov kab nrib pleb hauv cov khoom thaum ua haujlwm. Yog vim li cas rau qhov tawg yog tias tus number case los yog kua nplaum siv ntau dhau, los yog nws tau sau rau ntawm qhov chaw, tab sis cov khoom nto corroded thiab tawg yog tshwm sim. Vim li no, raws li TPE|TPR cov ntaub ntawv sib txawv, yuav tsum tau them nyiaj rau kev xaiv cov nplaum, nrog rau cov nplaum nplaum thiab qhov sib xws ntawm cov tshuaj txau.
c. Kev ntxhov siab tawg
TPE|TPR cov khoom lag luam muaj kev cuam tshuam rau kev ntxhov siab thiab kev cuam tshuam los ntawm cov qauv tsim, xws li cov kab sib txuas, cov khoom tsis sib xws, thiab cov qauv nrog lub kaum ntse ntse lossis radian hloov, ua rau cov khoom tawg.
4. Yuav ua li cas rau tev thiab delamination ntawm lub rooj vag ntawm TPE khoom?
Teb: Qhov ua rau sab hauv yog cov khoom siv tsis zoo. Qhov laj thawj sab nraud yog tias lub rooj vag txoj hauj lwm muaj zog shearing nyhuv. Lub tev thiab delamination ntawm lub rooj vag feem ntau yog tshwm sim los ntawm cov khoom tsis txaus compatibility thiab muaj zog shearing nyhuv.
Ntau TPEs raws li SEBS system yog cov ntaub ntawv alloy. Yog tias qhov kev sib raug zoo ntawm lub cev tsis txaus, thaum ntsib cov xwm txheej tshwj xeeb ntawm kev txhaj tshuaj molding cov khoom (xws li qhov loj txaus-ntev piv thiab siab firing tus nqi), nws yog ib qho yooj yim nyob rau hauv lub rooj vag txoj hauj lwm. Cov tawv nqaij delamination tshwm sim.
Nyob rau ntawm lub rooj vag txoj hauj lwm, vim hais tias cov ntws kev taw qhia thiab tus nqi ntawm cov yaj yuav hloov sharply, no shear-zoo li cov nyhuv yog ib tug zoo kev ntsuam xyuas rau lub system uniformity ntawm lub TPE yaj. Qhov ntau dua qhov kev tua hluav taws thiab qhov ntau dua qhov sib npaug ntawm qhov ntev, qhov pom tseeb ntawm cov nyhuv shearing. Yog tias kev sib raug zoo ntawm txhua yam ntawm TPE tsis txaus, nws yuav yooj yim ua rau delamination thiab tev ntawm cov qauv sib txawv thiab cov khoom sib txawv.
Kev Txhim Kho: Lub TPE compounding system yuav tsum ua kom yooj yim rau cov khoom faib faib thiab txhim kho kev sib raug zoo ntawm cov kab ke. Thaum molding, sim siv lub siab siab thiab tsis tshua muaj hluav taws xob. Yog tias ua tau, tsim ib txoj hauj lwm tsim nyog ntawm cov kua nplaum inlet kom txo cov khoom ntws ntev piv.
