Kev xaiv ntawm kub yaj nplaum nyob rau hauv vaj huam sib luag rooj tog ntug banding kev lag luam.

Kev xaiv ntawm ntug sealing kub yaj nplaum

Ntug sealingkub yaj nplaum yog ib hom ntawm cov nplaum tshwj xeeb uas siv foredge sealing ntawm cov laug cam. Nws yog ib qho hnyav-dawb thermoplastic nplaum. Thaum lub kub yaj nplaum yog rhuab mus rau ib tug tej yam kub, nws hloov los ntawm ib tug khoom lub xeev mus rau lub molten lub xeev. Thaum nws yog siv rau saum npoo ntawm cov ntoo-raws li vaj huam sib luag substrate los yog ntug sealing cov ntaub ntawv, nws txias mus rau ib tug ruaj khov lub xeev, thiab cov ntug sealing cov ntaub ntawv thiab cov substrate yog bonded ua ke. Rau kev xaiv thiab siv ntawm ntug sealing kub yaj nplaum, cov nram qab no yuav tsum tau them sai sai rau:

 

1. Cov khoom siv ntawm ntug sealing kub yaj nplaum

 

Ntug sealingkub yaj nplaums tuaj yeem muab faib ua peb pawg raws li cov ntaub ntawv sib txawv:

(1)EVA (ethylene-vinyl acetate copolymer resin) cov khoom siv kub yaj nplaum, qhov kub yaj nplaum no tuaj yeem muab faib ua ob hom nrog muab tub lim thiab tsis muaj muab tub lim. ,

(2) POL YAMIDE (polyamide) cov khoom siv kub yaj nplaum, hom kub yaj nplaum nplaum no muaj cov yam ntxwv ntawm kev ua kom sov zoo thiab kho sai, tab sis lub ntsiab tsis zoo yog tias nws kim heev.

(3)HMPU (polyurethane) puag khoom kub yaj nplaum, uas yog ib hom kub yaj nplaum nrog qhov ua tau zoo tshaj plaws, thiab yog qhov lav ntawm cov ntawv zoo tshaj plaws ntug sealing. Nws yog kim thiab yuav tsum tau siv tshwj xeeb.

 

2. Viscosity ntawm ntug sealing kub yaj nplaum

 

Lub viscosity ntawm ntug sealingkub yaj nplaum tsis ncaj qha cuam tshuam qhov kev ua tau zoo ntawm cov nplaum. Feem ntau, qhov siab dua qhov viscosity ntawm ntug sealing kub yaj nplaum, qhov zoo dua nws qhov pib tack zog, tab sis qhov ua tau zoo ntawm txheej txheej. Tsawg-viscosity kub yaj adhesives muaj cov kua nplaum me me thiab cov khoom ntub dej zoo dua. Qee qhov kub yaj nplaum nplaum uas tsis muaj viscosity thiab ceev curing ceev kuj tseem muaj zog pib tack. Rau particleboards uas tsis zoo, kub yaj adhesives nrog viscosity siab dua yuav tsum tau siv rau ntug sealing. Qhov no yog vim qhov siab viscosity kub yaj adhesives tsis zoo fluidity thiab tsis yooj yim rau nkag mus rau hauv lub pores ntawm ntug ntawm particleboards li tsawg viscosity kub yaj adhesives. , kom cov nplaum nplaum kub yaj tuaj yeem coated rau ntawm ntug ntawm lub rooj tsavxwm.

 

3. Ceev ntawm ntug sealing kub yaj nplaum

 

Qhov ntom ntawm ntug sealingkub yaj nplaum isgenerally 0.95-1.6g / cm3, thiab nws qhov ceev yog nyob ntawm tus nqi ntawm cov muab tub lim (qhov ntau muab tub lim, qhov ntau dua qhov ntom). Txij li ib cheeb tsam ntawmgluing yog yuav tsum tau rau lub ntug sealing ntawm daim ntawv, tus nqi ntawm gluing ib chav tsev ntev ntawm lub unfilled kub meltadhesive nrog tsawg ceev yog me dua li ntawm cov kub yaj nplaum nplaum. Thiab vim tias cov nplaum nplaum uas tsis muaj kub yaj muaj kev sib txuas zoo dua thiab ua tiav tib lub npoo sealing, nws muaj peev xwm hais tias cov nplaum nplaum uas tsis muaj kub yaj yog siv me me dua li cov nplaum kub yaj. Yuav kom txo tau cov kua nplaum, lub ntug banding tshuab yuav tsum muaj cov kua nplaum zoo.

 

4. Softening point thiab siv kub ntawm ntug sealing kub yaj nplaum

 

Lub softening point yog ib qho kev qhia ntawm lub tshav kub tsis kam ntawm ntug-sealingkub yaj nplaum.Qhov siab dua qhov muag muag, qhov tsawg dua qhov ntug-sealing kub-melt nplaum nplaum yuav yaj. Nyob rau tib lub sijhawm, softening point kuj yog ib qho tseem ceeb rau kev ntsuas qhov kub thiab txias ntawm cov rooj tog vaj huam sib luag. Hauv Tebchaws Europe, tau muaj cov txheej txheem kev sim rau kev tiv thaiv tshav kub ntawm vaj huam sib luag ntug sealing, thiab tus qauv rau kev tiv thaiv tshav kub ntawm cov rooj tog vaj huam sib luag kuj tau thov.

 

Kev siv qhov kub ntawm ntug-sealing kub-melt nplaum nplaum yog hais txog qhov kub ntawm qhov uas lub tshuab gluing ntawm ntug-sealing tshuab yog glued. Tsuas yog nyob rau ntawm qhov ntsuas kub no, cov nplaum nplaum kub yaj tuaj yeem ua tiav qhov zoo tshaj plaws nplaum lub zog. Muaj qhov yuam kev loj heev ntawm qhov ntsuas kub uas tshwm sim ntawm qee qhov ntug banding tshuab thiab qhov ntsuas kub tiag tiag, yog li qhov ntsuas kub ntawm lub tshuab yuav tsum tau kuaj xyuas tsis tu ncua. Yog hais tias qhov kub ntawm ntug banding tshuab siab dhau lawm, cov kua nplaum yuav carbonized thiab haus luam yeeb; yog tias nws tsawg dhau, lub zog nplaum yuav raug txo.

 

5. Lub sijhawm qhib ntawm ntug sealing kub yaj nplaum thiab kev pub mis ceev ntawm ntug sealing tshuab.

 

Lub sijhawm qhib ntawm ntug-sealingkub yaj nplaum hais txog lub sij hawm ntawm lub sij hawm los ntawm qhov pib ntawm gluing ntawm ntug-sealing tshuab mus rau lub sij hawm ua ntej lub ntug-sealing daim kab xev yog nias rau lub substrate. Lub sijhawm qhib nws txawv nrog hom kua nplaum. Kev pub noj ceev ntawm ntug banding tshuab yog ze ze rau lub sijhawm qhib, ob qho tib si tseem ceeb heev hauv kev xaiv thiab siv cov nplaum kub yaj. Lub tshuab nqus plua plav ceev ceev yuav tsum xaiv cov nplaum kub yaj nrog lub sijhawm qhib luv luv, thiab rov ua dua, cov nplaum kub yaj nrog lub sijhawm qhib ntev.

 

 Forsemi-automatic lossis tsis siv neeg kub yaj nplaum nplaum tshuab, vim hais tias lub substrate thiab ntug banding daim kab xev yog glued thiab nias, lub ntug banding banding yuav tsum tau txiav tawm, trimmed thiab polished nce thiab nqis thiab lwm yam txheej txheem sai sai. Thaum lub sij hawm cov txheej txheem no, lub ntug banding band Yuav kom tiv thaiv mechanical txiav quab yuam, kub yaj adhesives yuav tsum muaj ib tug luv luv qhib lub sij hawm thiab ib tug siab pib tack zog. Tshwj xeeb tshaj yog rau cov ntaub ntawv tuab tuab (xws li cov ntoo tuab tuab), vim yog lub zog txiav loj, yog tias qhov pib lub zog ntawm cov nplaum nplaum kub tsis txaus, cov kab nrib pleb yuav tshwm sim ntawm lub rooj tsavxwm thiab ntug band.