PROCESSING TECHNOLOGY ntawm "xim tom qab INSERTING" ntawm PA THERMAL BREAK ALUMINIUM PROFILES

Raws li peb txhua tus paub, muaj ob txoj hauv kev rau thermal break aluminium profiles: ib qho yog xim cov txhuas profile ua ntej, thiab tom qab ntawd ntxig PA thermal so strips rau hauv cov xim txhuas profile, (uas yog, "xim ua ntej ntxig", raws li qhia. hauv daim duab 1). Qhov no yog txoj kev ua peb feem ntau siv tam sim no. Lwm qhov yog ntxig rau PA thermal so strips rau hauv txhuas profile ua ntej pleev xim rau tag nrho cov thermal so aluminium profiles, (uas yog, "xim tom qab ntxig", raws li qhia hauv daim duab 2), txoj kev no feem ntau siv hauv Tebchaws Europe.

Txawm hais tias txoj kev thib ob tsuas yog pauv ntau qhov kev ua tiav ntawm thawj zaug, nws muaj cov kev hloov pauv tseem ceeb thiab cov cai tshwj xeeb hauv kev xaiv cov thermal so strips thiab qee cov txheej txheem ua.

Daim duab 1 thermal break aluminium profile nrog kev siv thev naus laus zis ntawm "xim ua ntej ntxig"	Daim duab 2 thermal break aluminium profile nrog kev siv thev naus laus zis ntawm "xim tom qab ntxig"

• skev xaiv tsa ntawm lubPAThermal Break Strips

Rau qhov thermal so aluminium profile nrog kev ua haujlwm thev naus laus zis ntawm "xim ua ntej ntxig", qhov yuav tsum tau ua rau PA thermal so strip yog: ua kom tau raws li cov lus pom zoo xws li qhov raug thiab lub zog. Lub taub hau ntawm PA thermal so strip yog qhia hauv daim duab 3.

Daim duab 3 Lub taub hau zoo tib yam PA thermal tawg strip

Tab sis rau cov thermal tawg aluminium profile nrog kev ua haujlwm thev naus laus zis ntawm "xim tom qab ntxig", ntxiv rau kom ua tau raws li cov kev xav tau saum toj no, yuav tsum xyuas kom meej tias lub zog ntawm lawv tom qab cov txheej txheem xim ua tau raws li cov kev xav tau ntawm GB / T5237.6.

Lub taub hau ntawm PA thermal so strip yuav tsum tau nruab nrog kub-melt kua nplaum hlau, raws li qhia hauv daim duab 4.

Figure 4 Lub taub hau ntawmPAthermal so strip nrog kub-melt kua nplaum hlau

Rau qhov zoo tib yam PA thermal so strips, txawm hais tias PA thermal so strips muaj siab ntev shear quab yuam tom qab ntxig. Txawm li cas los xij, tom qab dhau los ntawm lub qhov cub xim xim, nyob rau hauv qhov kub ntawm txog 200 ℃, cov txheej txheej ntawm aluminium profile qhov yuav xoob vim muaj kev cuam tshuam ntawm thermal expansion thiab txias contraction, uas tsis tuaj yeem nruj tom PA thermal so strip, ua rau txo qis ntawm longitudinal shear quab yuam. Kuv txuas cov duab 5 rau koj kom nkag siab.

Daim duab 5 Lub occlusion ntawm sab nrauv collet nrog thermal so strip ua ntej thiab tom qab xim

Raws li tuaj yeem pom los ntawm daim duab 6, nyob rau hauv rooj plaub uas qhov kev txiav txim siab ntawm aluminium profile tsis knurled, tom qab thermal so aluminium profile yog compounded, lub longitudinal shear force yog 15N / mm. Tom qab kev kho deg ntawm cov xim, vim qhov kub thiab txias, sab nrauv ntawm lub thermal so profile yog xoob, nws qhov ntev shear quab yuam tsuas yog 0N / mm.

Rau thermal tawg aluminium profiles nrog cov tsis zoo knurling, tom qab sib xyaw, qhov ntev shear quab yuam yog 64N / hli, thiab tom qab kev kho deg xim, qhov quab yuam no tsuas yog 18N / hli, poob ntawm 72%.

Rau cov thermal tawg aluminium profile nrog zoo knurling, tom qab compounding, lub longitudinal shear quab yuam yog 90N / hli, thiab tom qab kev kho deg ntawm cov xim, lub zog no tsuas yog 47N / hli, poob ntawm 48%.

Rau lub thermal tawg aluminium profile nrog qhov zoo tshaj plaws knurling, tom qab compounding, lub longitudinal shear quab yuam yog 110N / mm, thiab tom qab kev kho deg xim, lub zog no tsuas yog 58N / hli, poob ntawm 47%.

Los ntawm no, peb tuaj yeem pom tias thaum peb xaiv qhov zoo tib yam PA thermal so strips uas yog los tsim thermal so aluminium profiles, shear force poob ntawm cov khoom kawg yog ntau dua 50%, uas tsis tuaj yeem muab kev lees paub rau kev tsim khoom thiab siv.

Daim duab 6

Nyob rau hauv luv luv, rau zus tau tej cov thermal so aluminium profiles los ntawm cov txheej txheem ntawm "xim tom qab inserting", PA thermal so strips nrog kub-melt kua nplaum hlau yuav tsum tau xaiv.

Cov hlau kub-melt yog khoom ntawm chav tsev kub. Nws tau daig ntawm PA thermal so strip. Thaum lub sij hawm cov txheej txheem ntawm coloring, kub-melt kua nplaum hlau pib yaj. Lub molten kub-melt kua nplaum hlau yuav sau qhov sib txawv ntawm PA thermal so strip thiab aluminium profile. Thaum cov xim tiav lawm, qhov kub thiab txias pib poob thiab molten kub yaj kua nplaum hlau pib solidify. Vim tias nws txoj kev sib raug zoo muaj zog, PA thermal so strip yog sib txuas nrog cov txhuas profile, thiaj li ua rau qhov poob ntawm longitudinal shear quab yuam tshwm sim los ntawm loosening ntawm lub puab collet.

Daim duab 7

Nws tuaj yeem pom los ntawm daim duab 7 tias rau lub thermal tawg aluminium profile nrog zoo knurling, tom qab lub compounding, lub longitudinal shear quab yuam yog 89N / mm. Tom qab xim, qhov ntev shear quab yuam yog 80N / mm, uas tsuas yog poob 10%. Txawm li cas los xij, rau qhov profile nruab nrog zoo tib yam PA thermal so strips, qhov poob yog ntau tshaj 50% tom qab xim. Cov ntaub ntawv loj loj qhov sib txawv tshwm sim los ntawm kev siv cov strips sib txawv qhia qhov pom tseeb zoo ntawm PA thermal so strips nrog kub-melt kua nplaum hlau rau thermal so aluminium profiles nyob rau hauv tus txheej txheem ntawm "xim tom qab inserting".

Yog li ntawd, thaum siv cov thev naus laus zis ntawm "xim tom qab ntxig" los tsim cov thermal tawg aluminium profiles, nws raug nquahu kom siv PA thermal so strips nrog kub-kua nplaum hlau.

• Kev ziab ntawm Thermal Break Strips

Cov khoom tseem ceeb ntawm PA thermal so strip yog polyamide 66 nrog 25% iav fiber reinforced. PA66 yog cov khoom siv dej nqus dej nrog cov dej nqus saturation ntawm li 5%. Ua cov txheej txheem ntawm kev kho saum npoo thiab ci thaum cov dej hauv PA thermal so strip yog saturated yuav ua rau cov dej noo hauv PA thermal so strip kom evaporate thaum lub sij hawm ci, ua rau thaj tsam loj ntawm cov npuas ntawm qhov chaw ntawm lub sawb lossis txawm tias qhov tawg ntawm nws (raws li qhia hauv daim duab 8 thiab daim duab 9).

Yog li ntawd, tom qab soaked nyob rau hauv txhua lub pas dej ua ke, lub thermal so aluminium profiles yuav tsum tau qhuav nrog compressed cua ua ntej sprayed nrog hmoov los xyuas kom meej tias tsis muaj residue los ntawm lub pas dej ua ke ntawm cov profiles, kab noj hniav los yog qhov khoob; Tom qab ntawd muab cov thermal so aluminium profiles rau hauv lub thawv kom qhuav rau lub sijhawm, kom cov dej noo hauv PA thermal so strip yog volatilized. Tsuas yog nyob rau hauv txoj kev no tuaj yeem xyuas kom meej tias tsis muaj npuas lossis tev tawm ntawm qhov chaw ntawm cov strips thaum lub sij hawm ci txheej txheem ntawm aluminium profile.

• TEmperature Control Thaum Ci

Lub softening kub ntawm lub PA thermal so strip yog hais txog 230 ℃, thiab cov melting kub yog nyob ib ncig ntawm 250 ° C. Yog li, qhov kub ntawm lub qhov cub xim yuav tsum tau teem ntawm 180-200 ℃ thiab lub sij hawm yuav tsum tsawg dua los yog sib npaug li 20 feeb. Thaum kub lossis lub sijhawm dhau mus, qhov ruaj khov ntawm PA thermal so strip yuav raug cuam tshuam, uas ua rau deformation ntawm thermal break aluminium profile. (Raws li pom hauv daim duab 10)

Daim duab 10

• Hais txog Fluorocarbon Xim

Rau cov thermal so aluminium profile uas nws qhov chaw kho yog cov xim fluorocarbon, nws tsis tsim nyog siv cov txheej txheem "xim tom qab ntxig". Nws tsuas tuaj yeem tsim los ntawm "xim ua ntej ntxig". Qhov no yog vim lub sijhawm xim ntawm cov xim fluorocarbon kuj ntev (tej zaum ob lossis peb lub tsho, thiab lwm yam) thiab xim kub yog siab (kwv yees li 220 ℃). Cov no tuaj yeem ua rau deformation ntawm thermal tawg aluminium profile.

Nyob rau hauv luv luv, rau zus tau tej cov thermal so aluminium profiles los ntawm cov txheej txheem ntawm "xim tom qab inserting", PA thermal so strips nrog kub-melt kua nplaum hlau yuav tsum tau xaiv. Nws yog ib qho tsim nyog kom qhuav cov txheej txheem thermal rwb thaiv tsev thiab tswj lub qhov cub kub thiab lub sijhawm ci.