Yuav ua li cas txo tus nqi ntawm lub hnab ntim khoom tawg yooj yim hauv cov chaw ntim khoom lag luam yooj yim

1. Qhov cuam tshuam ntawm tshav kub sealing kub ntawm lub tshav kub sealing zog
Lub melting kub ntawm ntau yam ntaub ntawv ncaj qha txiav txim siab tsis tshua muaj kub sealing kub ntawm composite hnab. Thaum lub sij hawm tsim cov txheej txheem, vim muaj ntau yam xws li kub sealing siab, lub hnab ua kom ceev, thiab lub thickness ntawm cov substrate sib xyaw, qhov tseeb kub sealing kub siv feem ntau siab tshaj qhov kub ntawm melting kub ntawm cov khoom kub sealing. Qhov qis dua ntawm lub tshav kub foob, qhov siab dua qhov yuav tsum tau ua kom sov sealing kub; Lub tshuab ceev ceev, qhov tuab ntawm cov khoom siv ntawm cov zaj duab xis sib xyaw, thiab qhov siab dua qhov yuav tsum tau ua kom sov sealing kub.
Yog hais tias lub tshav kub sealing kub yog qis dua qhov softening point ntawm cov khoom siv thaum tshav kub kub sealing, tsis muaj teeb meem ntau npaum li cas los yog lub tshav kub sealing lub sij hawm ntev, nws yog tsis yooj yim sua kom muab lub tshav kub sealing txheej. Txawm li cas los xij, yog tias qhov kub thiab txias sealing siab dhau lawm, nws yooj yim heev rau kev puas tsuaj rau cov khoom siv thaum tshav kub kub sealing ntawm lub vuam ntug los ntawm melting thiab extrusion, uas ua rau "hauv paus txiav" tshwm sim, zoo heev txo lub tshav kub sealing lub zog ntawm lub foob thiab lub. cuam ​​tshuam tsis kam ntawm lub hnab.
2. Hom, tuab, thiab zoo ntawm cov khoom siv thaum tshav kub kub sealing txheej muaj kev txiav txim siab ntawm lub tshav kub sealing zog
Cov khoom siv hluav taws xob feem ntau siv rau kev ntim khoom suav nrog CPE, CPP, EVA, kub yaj nplaum, thiab lwm yam ion hom resin co extruded lossis blended modified films. Lub thickness ntawm cov khoom siv thermal sealing feem ntau yog nyob nruab nrab ntawm 20 thiab 80 μ Ntawm m, nws kuj tuaj yeem ncav cuag 100-200 nyob rau hauv cov xwm txheej tshwj xeeb μ M's.
Thaum tshav kub kub sealing lub zog ntawm tib lub tshav kub sealing cov ntaub ntawv nce nrog qhov nce ntawm tshav kub sealing thickness. Thaum tshav kub kub sealing lub zog ntawm steaming thiab boiling hnab yog feem ntau yuav tsum tau mus txog 40-50 Newton, yog li ntawd, lub thickness ntawm lub tshav kub sealing khoom yuav tsum nyob nruab nrab ntawm 60-80 Newton μ Saum toj no m.
3. Txhawm rau kom ua tiav qhov xav tau ntawm lub tshav kub sealing lub zog, ib qho kev ntsuas siab yog qhov tseem ceeb
Rau cov hnab ntim khoom hnyav, lub tshav kub sealing siab yuav tsum ncav cuag tsawg kawg 2kg / cm2, thiab nws yuav nce ntxiv nrog rau qhov nce ntawm tag nrho cov tuab ntawm cov zaj duab xis sib xyaw. Yog hais tias lub tshav kub sealing siab tsis txaus, nws yog ib qho nyuaj rau ua tiav qhov tseeb fusion ntawm ob lub yeeb yaj kiab nyias, uas ua rau cov cua sov hauv zos tsis zoo los yog nyuaj rau kev tshem tawm cov npuas uas nyob hauv nruab nrab ntawm lub vuam seam, uas ua rau cov khoom tsis raug.
Tau kawg, qhov siab dua qhov kub sealing siab, qhov zoo dua. Nws yog ib qho tsim nyog yuav tsum tsis txhob ua kom lub vuam ntug puas, vim tias nyob rau hauv qhov kub ntawm qhov kub thiab txias, cov khoom siv hluav taws xob ntawm lub vuam ntug yog twb nyob rau hauv ib nrab molten lub xeev. Lub siab ntau dhau tuaj yeem yooj yim nyem tawm qee qhov ntawm cov khoom siv thaum tshav kub kub sealing, ua rau lub vuam ntug tsim ib lub xeev txiav, ua rau lub vuam ua rau nkig thiab lub tshav kub sealing lub zog yuav txo.
4. Yog hais tias qhov txias ntawm lub vuam seam tom qab tshav kub sealing tsis zoo, nws yuav tsis tsuas cuam tshuam cov tsos flatness ntawm weld seam, tab sis kuj muaj tej yam cuam tshuam rau lub tshav kub sealing zog.
Cov txheej txheem cua txias yog cov txheej txheem ntawm shaping lub weld seam uas nyuam qhuav tau yaj thiab cua sov kaw ntawm qhov kub thiab txias nyob rau hauv ib qho kev nyuaj siab kom tshem tawm kev ntxhov siab concentration. Yog li ntawd, tsis txaus siab, tsis zoo ntawm cov dej txias, qhov ntim tsis txaus, dej kub kub, los yog txias tsis raws sij hawm tuaj yeem ua rau cov cua txias tsis zoo, ua rau kub sealing npoo, thiab txo lub zog ntawm kub sealing.
5. Lub sij hawm sib khi thaum tshav kub kub yog txiav txim siab los ntawm kev ceev ntawm lub hnab ua tshuab
Lub sij hawm thaum tshav kub kub sealing kuj yog ib qho tseem ceeb cuam tshuam rau lub sealing lub zog thiab cov tsos ntawm weld seam. Nyob rau tib lub tshav kub sealing kub thiab siab, yog hais tias lub tshav kub sealing lub sij hawm ntev, lub tshav kub sealing txheej yuav fuse ntau tag nrho thiab daim ntawv cog lus ruaj khov. Txawm li cas los xij, yog tias lub sij hawm sib khi thaum tshav kub kub ntev dhau lawm, nws tuaj yeem yooj yim ua rau weld wrinkling thiab cuam tshuam rau cov tsos.
6. Lub sij hawm sealing ntau dua, lub zog sealing ntau dua
Tus naj npawb ntawm longitudinal tshav kub ntsaws ruaj ruaj nyob ntawm qhov sib piv ntawm qhov zoo ntawm qhov ntev ntawm lub vuam pas nrig rau lub hnab ntev; Tus naj npawb ntawm kab rov tav cua sov lub sij hawm sealing yog txiav txim los ntawm tus naj npawb ntawm cov kab rov tav cua sov sealing li ntawm lub tshuab. Lub tshav kub zoo yuav tsum muaj tsawg kawg yog ob lub tshav kub sealing. Ib lub hnab ntim tshuab ua tshuab muaj ob txheej ntawm cov riam ironing, thiab qhov siab dua qhov sib tshooj ntawm cov riam ironing txoj haujlwm, qhov zoo dua qhov kub sealing nyhuv.
7. Qhov siab dua lub tev lub zog ntawm cov txheej txheem sib xyaw, qhov ntau dua qhov kub sealing lub zog ntawm cov yeeb yaj kiab sib xyaw nrog tib cov qauv thiab tuab.
Rau cov khoom uas tsis tshua muaj tev lub zog, weld puas feem ntau tshwm sim los ntawm interlayer tev ntawm cov yeeb yaj kiab sib xyaw ntawm qhov vuam, ua rau cov txheej txheem thermal sealing ntawm nws tus kheej coj lub zog tensile ntawm qhov tsis ua hauj lwm, thaum cov khoom nto poob nws qhov kev txhawb zog, ua rau muaj qhov txo qis hauv thermal seal lub zog ntawm lub vuam. Yog hais tias qhov sib xyaw tev lub zog loj, interlayer tev ntawm lub vuam ntug yuav tsis tshwm sim, thiab qhov tseeb ntsuas kub sealing zog yuav ntau dua.