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

Raws li peb txhua tus paub, muaj ob txoj kev kho kom haum rau cov hlau aluminium thermal break: ib qho yog los ua xim rau cov hlau aluminium thawj, thiab tom qab ntawd muab cov PA thermal break strips tso rau hauv cov hlau aluminium xim, (yog tias, “ua xim ua ntej tso”, raws li qhia hauv Duab 1). Qhov no yog txoj kev kho peb feem ntau siv tam sim no. Lwm txoj kev yog los tso cov PA thermal break strips rau hauv cov hlau aluminium ua ntej ua xim rau tag nrho cov hlau aluminium thermal break, (yog tias, “ua xim tom qab tso”, raws li qhia hauv Duab 2), txoj kev no yog feem ntau siv hauv Europe.

Txawm li cas los xij, txoj kev thib ob tsuas yog hloov pauv qee qhov txheej txheem kho ntawm thawj txoj kev, nws muaj qhov hloov pauv tseem ceeb thiab cov requirments tshwj xeeb hauv kev xaiv cov thermal break strips thiab qee qhov kev kho tshuab.

Duab 1 thermal break aluminium profile nrog txoj kev kho technology ntawm “ua xim ua ntej tso”	Duab 2 thermal break aluminium profile nrog txoj kev kho technology ntawm “ua xim tom qab tso”

• S kev xaiv tsa ntawm lub PA Thermal Break Strips

Rau cov hlau aluminium thermal break nrog txoj kev kho mob "xim ua ntej tso", qhov xav tau rau PA thermal break strip yog: yuav tsum tau ua raws li cov cai ib txwm xws li qhov tseeb ntawm qhov loj thiab lub zog. Lub taub hau ntawm PA thermal break strip yog qhia hauv Duab 3.

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

Tab sis rau cov hlau aluminium thermal break nrog txoj kev kho mob "xim tom qab tso", ntxiv rau kev ua raws li cov requirments saum toj no, yuav tsum kuj xyuas kom meej tias lub zog ntawm lawv tom qab txoj kev xim ua raws li cov requirments tseem ceeb ntawm GB/T5237.6.

Lub taub hau ntawm PA thermal break strip yuav tsum tau muab nrog cov hlua glue kub, raws li qhia hauv duab 4.

Fi gure 4 Lub taub hau ntawm PA thermal 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 pom hauv Duab 6, hauv qhov xwm txheej uas notch ntawm aluminum profile tsis tau knurled, tom qab thermal break aluminum profile tau compounded, longitudinal shear force yog 15N/mm. Tom qab txheej txheem ntawm coloring, vim muaj qhov kub siab, lub sab nraud collet ntawm thermal break profile yog loose, nws longitudinal shear force yog basically tsuas yog 0N/mm.

Rau thermal break aluminum profiles nrog knurling tsis zoo, tom qab compounded, longitudinal shear force yog 64N/mm, thiab tom qab txheej txheem ntawm coloring, qhov no yog tsuas yog 18N/mm, ib qho poob ntawm 72%.

Rau thermal break aluminum profile nrog knurling zoo, tom qab compounded, longitudinal shear force yog 90N/mm, thiab tom qab txheej txheem ntawm coloring, qhov no yog tsuas yog 47N/mm, ib qho poob ntawm 48%.

Rau thermal break aluminum profile nrog knurling zoo tshaj, tom qab compounded, longitudinal shear force yog 110N/mm, thiab tom qab txheej txheem ntawm coloring, qhov no yog tsuas yog 58N/mm, ib qho poob ntawm 47%.

Los ntawm no, peb tuaj yeem pom tias thaum peb xaiv cov PA thermal break strips uas yuav tsim cov thermal break aluminum profiles, qhov shear force poob ntawm cov khoom kawg yog ntau tshaj 50%, uas tsis tuaj yeem muab kev lav phib xaub rau kev tsim 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 ruaj khov ntawm chav sov. Nws stuck rau ntawm PA thermal break strip. Thaum lub sijhawm coloring, cov hlau kub-melt glue pib melting. Cov molten kub-melt glue hlau yuav npl fill qhov chaw ntawm PA thermal break strip thiab aluminum profile. Thaum cov coloring tiav, qhov kub pib poob thiab cov molten kub melt glue hlau pib solidify. Vim nws muaj zog bonding performance, PA thermal break strip yog bonded nrog aluminum profile, kom compensates rau qhov poob ntawm longitudinal shear force uas ua los ntawm qhov loosening ntawm cov npoo sab nraud.

Daim duab 7

Nws tuaj yeem pom los ntawm Daim duab 7 tias rau cov hlau aluminium thermal break nrog knurling zoo, tom qab kev sib xyaw, qhov ntev shear zog yog 89N/mm. Tom qab xim, qhov ntev shear zog yog 80N/mm, uas tsuas ploj 10% xwb. Txawm li cas los xij, rau cov profile uas muaj cov pa thermal break strips PA, qhov ploj yog ntau tshaj 50% tom qab xim. Qhov loj data txawv txav los ntawm kev siv cov strips txawv qhia txog qhov pom tseeb zoo ntawm cov pa thermal break strips PA nrog hot-melt glue wire rau cov hlau aluminium thermal break hauv txoj kev ntawm "xim tom qab muab tso".

Yog li, thaum siv txoj technology ntawm "xim tom qab muab tso" los tsim cov hlau aluminium thermal break, nws raug pom zoo kom siv cov pa thermal break strips PA nrog hot-melt glue wire.

• Kev ziab ntawm Thermal Break Strips

Cov khoom tseem ceeb ntawm PA thermal break strip yog polyamide 66 nrog 25% iav fiber reinforced. PA66 yog ib qho khoom uas nqus dej nrog qhov nqus dej saturation nce txog 5%. Ua cov txheej txheem ntawm qhov chaw kho thiab baking thaum dej hauv PA thermal break strip saturated yuav ua rau qhov noo hauv PA thermal break strip evaporate thaum lub sijhawm baking, ua rau muaj ib thaj chaw loj ntawm cov bubbles ntawm qhov chaw ntawm strip lossis txawm tias nws puas (xws 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.

• T emperature Control Thaum Ci

Qhov kub uas yuav ua rau PA thermal break strip so yog txog 230℃, thiab qhov kub melting yog ib puag ncig 250°C. Yog li ntawd, qhov kub ntawm cov xim furnace yuav tsum tau teeb tsa ntawm 180-200℃ thiab lub sijhawm yuav tsum tsawg dua lossis sib npaug rau 20 feeb. Thaum qhov kub lossis lub sijhawm dhau, qhov ruaj khov ntawm PA thermal break strip yuav raug cuam tshuam, ua rau muaj kev hloov pauv ntawm cov thermal break aluminum profile. (Xws li qhia hauv daim duab 10)

Daim duab 10

• Hais txog Fluorocarbon Xim

Rau cov hlau aluminium thermal break uas muaj txheej txheem tiav yog fluorocarbon xim, nws tsis haum siv txoj kev "xim tom qab muab tso". Nws tsuas yog tuaj yeem tsim los ntawm "xim ua ntej muab tso". Qhov no yog vim tias lub sijhawm xim ntawm fluorocarbon xim yog ntev heev (tej zaum ob lossis peb txheej, thiab lwm yam) thiab lub sijhawm xim kub yog siab (nqe txog 220 ℃). Cov no yuav ua rau kev hloov pauv ntawm thermal break aluminium profile.

Hauv qab no, rau kev tsim cov thermal break aluminium profiles los ntawm txoj kev "xim tom qab muab tso", yuav tsum xaiv PA thermal break strips nrog cov hlau glue kub. Nws tsim nyog kom qhuav cov thermal insulation profiles uas tau muab tso thiab tswj lub qhov cub kub thiab lub sijhawm ci.