Polyvinyl chloride (PVC) yog cov khoom siv polymeric uas tau siv dav hauv ntau qhov chaw ntawm cov khoom lag luam, hauv kev kho thiab kev tsim kho, hauv kev tsim sab hauv.
Success story
Cov nplua nuj 30-xyoo keeb kwm ntawm PVC cov ntaub ntawv hauv cov thermoplastics tau tawm tsam hauv nws qhov tshwj xeeb. Vim nws cov khoom zoo thiab cov yam ntxwv, foamed PVC muaj ntau yam kev siv hauv txhua qhov chaw ntawm lub neej niaj hnub ntawm tus neeg niaj hnub. Cov khoom pib rau kev tsim cov polyvinyl chloride yog cov khoom siv raw xws li thee, roj thiab roj. Polymerization ntawm vinyl chloride intermediate tsim cov khoom siv PVC kawg, uas yog tsim los ntawm carbon dioxide, hydrogen thiab chlorine molecules.
Ntau qhov kev txhim kho hauv kev tsim khoom, kev txhim kho ntawm cov qauv tsim thiab kev ua tiav tau pom tias, vim nws cov qauv molecular tshwj xeeb, cov khoom nyob hauv ib qho chaw tshwj xeeb ntawm lwm hom thermoplastics.
Foamed PVC muaj ntau yam zoo:durability ntawm kev khiav hauj lwm, tsis kam mus rau kub heev, mechanical kev nyuaj siab, ntau yam kev ua thiab zoo heev tshuaj tiv thaiv. Kev cuam tshuam zoo heev thiab qhov ua tau ntawm kev siv sab nraum zoov yog ua tiav los ntawm kev siv ntau yam additives. PVC ua npuas ncauj ntawv yog cov khoom siv PVC tshaj plaws.
Thawj PVC cov khoom siv hauv tebchaws Russia tau qhia los ntawm United Extrusion raws li UNEXT hom. Kev siv cov cuab yeej siv high-tech niaj hnub no tso cai rau peb los tsim cov khoom lag luam uas ua tau raws li txhua tus qauv thoob ntiaj teb. Ua tsaug rau kev siv cov ntaub ntawv zoo tshaj plaws thiab cov ntawv qhia tshwj xeeb, UNEXT PVC ua npuas ncauj tsis txawv ntawm nws cov European counterparts.
Type of sheet plastic
Txij li thaum kev taw qhia cov ntaub ntawv rau kev ua lag luam, PVC ua npuas ncauj tau tsim sai heev rau hauv ntau yam khoom. Ntau hom ntawv PVC nrog cov khoom tshwj xeeb tso cai rau cov khoom siv los siv cov tswv yim hauv ntau qhov chaw.
Muaj ntau hom ntawv nyuaj tshaj plaws PVC:
- Inert PVC Foam Sheet - tsim los siv cov thev naus laus zis tshiab. Yog li ntawd, cov qauv sab hauv yog sib xws thiab ntxeem tau, thiab sab nrauv ntawm ob sab yog du thiab glossy;
- PVC Loose Foam Sheet yog cov yas sib sib zog ua los ntawm PVC tawv, uas yog lub ntsej muag silky thiab zoo.porous qauv;
- daim ntawv cog lus - muaj kev cuam tshuam zoo thiab ruaj khov;
- daim ntawv pob tshab PVC yog cov yas pob tshab nrog lub teeb kis tau zoo thiab cuam tshuam tsis kam;
- daim ntawv pob tshab - tsim tshwj xeeb rau kev vov tsev, tus yam ntxwv los ntawm cov nplaim hluav taws xob tsawg;
- PVC Composite Sheet - Sab hauv yog cov yas dawb ua npuas ncauj thiab sab nraud yog ob sab txhuas txheej.
Ntau hom thiab kev ntseeg siab ntawm cov ntawv PVC ua cov yas universal rau ntau yam kev siv: kev kho kom zoo nkauj sab hauv ntawm cov tsev, kev tsim kho, erection ntawm kev tshaj tawm thiab cov ntaub ntawv sawv ntsug, tsim sab hauv ntawm cov khw thiab kev lag luam pem teb, mechanical engineering, thiab lwm yam.
PVC Ua Npuas Ncauj General Specifications
- Cov khoom siv tsis nqus dej thiab noo noo los ntawm huab cua, yog li nws tsis o thiab, vim li ntawd, tsis deform nyob rau hauv tag nrho cov kev pab cuam lub neej. Txawm tias thaum nyob hauv dej ntev, qhov zoo li ntawm cov yas thiab nws qhov kev ua tau zoo tsis hloov.
- Ib qhov zoo ntawm cov ntawv PVC yog nws cov hluav taws kev ruaj ntseg - yas belongs rau cov pab pawg neeg ntawm cov nplaim hluav taws uas tsis txhawb combustion hauv huab cua.
- PVC ua npuas ncauj muaj lub teeb ci zoo heev.
- Cov khoom siv los tsim cov ntsiab lus ntawm cov duab nyuaj siv cov thermo, pneumatic thiab nqus txoj hauv kev.
- Yas tiv taus cov tshuaj feem ntauCov khoom lag luam: tshuaj ntxuav tsev thiab tshuaj tua kab mob, cov tshuaj acids thiab alkalis.
- PVC yog ib puag ncig tus phooj ywg cov khoom uas tsis muaj cov hlau hnyav thiab tsis muaj kev cuam tshuam rau tib neeg kev noj qab haus huv thiab ib puag ncig.
- Cov khoom siv tau yooj yim machined thiab xuas tes ua nrog cov cuab yeej siv: yooj yim txiav, laum, pom, khoov, kua nplaum, ntsia hlau, ntsia hlau thiab rivet.
- Yas nto yog qhov zoo tagnrho rau nws tus kheej nplaum thiab laminating films, nrog rau kev tshuaj ntsuam luam ntawv, tshuaj ntsuam luam ntawv inks thiab varnishes.
txheej txheem txheej txheem
PVC ua npuas ncauj daim ntawv yog yooj yim raug rau txhua txoj kev ua thiab kev sib txuas. Vim nws cov khoom siv kho tshuab, yas tsis tas yuav siv cov khoom siv nyuaj thiab kim. Cov ntawv PVC tuaj yeem ua tiav nrog cov cuab yeej siv ib txwm siv thaum ua haujlwm nrog ntoo lossis hlau.
YPVC sawing
Foamed PVC daim ntawv tuaj yeem saws manually nrog lub voj voog, bandsaw, thiab jigsaw. Cov khoom siv tau saws nrog tes saw tsim los rau kev ua haujlwm ntoo. Hlau saws tuaj yeem txhaws vim qhov sib nrug ntawm cov hniav. Optimal sawing tsis:
- nrawm txog 300 m / min;
- pub 30 m/min.
Cov kws tshaj lij pom zoo cov kev ntsuas hauv qab no ntawm cov kab hniav: α=5 - 10 ° - pem hauv ntej lub kaum sab xis, b=10 - 20 ° - rov qab, nrog cov hniav ntawm 5 mus rau 10 hli.
Foamed PVC yog drilled nrog cov pa xyaum ua haujlwm tsim los ua haujlwm nrog hlau. Cov txiaj ntsig zoo tshaj plaws yog ua tiav ntawm qhov nrawm ntawm 50 txog 300 rpm thiab pub ntawm 3.5 txog 6 m / min. Lub kaum sab xis raug pom zoo kom siv nrog cov txiaj ntsig hauv qab no:
- φ=100 - 110 ° - vertex kaum;
- β=30° - elevation angle;
- α=0-5 0 - rake angle.
Milling
Standard universal ntsug thiab kab rov tav milling tshuab tuaj yeem siv los ua cov yas PVC. Txhawm rau tiv thaiv kev puas tsuaj rau saum npoo ntawm cov khoom, yas lossis ntoo gaskets yog siv thaum kho. Kev ua haujlwm zoo tshaj plaws:
- txiav nrawm tsis tshaj 900 m / min;
- khoom pub 0.3 - 0.6 m / min;
- rake angle α=5 - 20°;
- lub kaum sab xis γ=10-25 °.
Txoj kev ntug ntawm daim ntawv
PVC foamed ntawv yuav tsum tau ua tiav cov npoo. Rau cov hom phiaj no, koj tuaj yeem siv lub planer, sandpaper lossis lwm yam khoom siv rau kev sau cov npoo ntawm ntoo lossis yas. Yog hais tias cov khoom raug mus tas li dynamic loads, irregularities yuav ua rau puas los yog tawg. Ib daim ntawv PVC nrog lub thickness tsis pub tshaj 3 hli tuaj yeem txiav nrog rab riam zoo tib yam.
YPVC Yas Stamping
Punching efficiency nyob ntawm ob peb yam:
- daim ntawv thickness - cov nplooj ntawv txog li 3 hli tuab tuaj yeem raug stamped yooj yim. Yog siv cov cuab yeej tshwj xeeb thiabtxoj kev raug, nws muaj peev xwm stamp cov duab yooj yim los ntawm PVC nrog lub thickness ntawm 4 mus rau 6 hli. Nco ntsoov tias cov npoo ntawm daim ntawv yuav sib npaug me ntsis;
- daim ntawv kub - nrog cov cua sov me ntsis ntawm cov khoom, qhov zoo ntawm stamping txhim kho;
- khoom siv stamping - haum rau xuas nrig ntaus ntawv thiab lwm yam ntaub ntawv ua npuas ncauj;
- lub kaum ntse ntse - qhov yuav tsum tau ua ua ntej rau kev ua haujlwm zoo yog qhov chaw ntawm cov hniav ntawm lub kaum sab xis ntawm 30 °.
kub khoov
Rau lub hom phiaj no, txhua yam khoom siv thermoplastic dabtsi yog khoov yog siv. Kev khoov kom raug yog nyob ntawm qhov sib txawv ntawm qhov kub thiab txias thiab qhov kev txhais ua ntej ntawm thaj chaw cua sov tsis tu ncua. Qhov ntsuas kub zoo tshaj plaws yog los ntawm 115 txog 130 ° C. Yog tias qhov ntsuas kub siab tshaj qhov siab tshaj plaws, muaj qhov ua tau zoo ntawm kev tawg thiab tawg ntawm PVC honeycomb qauv. Feem ntau qhov no tshwm sim thaum khoov cov nplooj ntawv tuab. Thaum cov cua sov tsis txaus, cov khoom siv yuav raug kev nyuaj siab thiab tejzaum nws rov qab mus rau qhov qub qub.
Thaum khoov cov ntaub ntawv ua npuas ncauj, cov cua sov ib sab tsuas yog ua tiav mus txog qee qhov taw tes, yog li lub vojvoog khoov tuaj yeem pom qhov tsis txaus ntseeg. Hauv qhov no, V-shaped incision yog siv rau sab hauv ntawm daim ntawv. Ib qho yuav tsum tau ua ua ntej yog kev kho ntawm cov khoom tsim kom txog thaum cov khoom tau txias tag.
YPVC daim ntawv sib txuas
PVC foamed yob tuaj yeem ua nrog ntau hom nplaum. Yog tias koj xav tau cov nplaum cov nplooj ntawv nruab nrabkoj tuaj yeem siv cov kua nplaum ua kua nplaum rau cov vuam txias los yog cov kua nplaum (secondary) kua nplaum. Thaum sib txuas cov ntaub ntawv uas tsis yog ntxeem tau thiab tsis nqus dej, cov nplaum hauv qab no tsim nyog:
- solvent contact - siv rau ob qhov chaw hauv qhov sib piv ntawm 150 g ib 1 m22;
- ob lub ntsiab lus polyurethane - tsuas yog ib qho saum npoo yog coated.
PVC kev sib txuas rau cov khoom ntxeem tau thiab nqus tau yog ua tiav nrog dej dispersion nplaum los yog ob lub ntsiab lus polyurethane nplaum.
Cov kws tshaj lij pom zoo kom kuaj raws li qhov xwm txheej, suav nrog cov xwm txheej uas tuaj yeem cuam tshuam kev sib raug zoo: kev tiv thaiv huab cua thiab tshuaj, elasticity ntawm cov nplaum kab.
PVC ua npuas ncauj vuam
PVC cov ntawv tuaj yeem txuas nrog cua kub. Thaum lub sij hawm vuam txheej txheem, tej yam yuav tsum tau soj ntsuam: kev npaj ntawm lub vuam thiab siv qhov tseeb kub. Qhov tseem ceeb tshaj plaws uas yuav tsum tau them sai sai rau yog ua kom cov cua sov tsis sib xws, thaum tsis txhob muaj cua sov hauv zos. Tus qauv vuam pas nrig tuaj yeem siv los ua cov txheej txheem PVC ua npuas ncauj, uas yuav tsum tau preheated rau 70 - 80 ° C.
Lub luag haujlwm tseem ceeb:
- Cov npoo ntawm PVC daim ntawv seams yuav tsum beveled 60 °;
- vuam kub zoo tshaj 280 - 290 ° C;
- Koj yuav tsum siv lub tshuab vuam kub ceev (3.5 m / min) thaum ua haujlwm.
Thermoforming
PVC ua npuas ncauj tuaj yeem ncab lossis khoov tom qab ua kom sov rau qee qhov kub. Txawm li cas los xij, vim tias cov khoom siv yog ob-theem system, ib nrab ntawm cov ntim uas yog nyob hauv huab cua, qee qhov kev txwv yuav tsum tau ua. Rau kev ua cov ntawv, cov cua sov ob sab yog pom zoo. Cov khoom yuav tsum tau molded tom qab nws ua elastic. Ua ntej thermal raug, koj yuav tsum tshem tawm cov yeeb yaj kiab tiv thaiv los ntawm cov ntawv PVC.
Printing thiab varnishing
Vim nws cov qauv, PVC ua npuas ncauj yog zoo tagnrho rau kev tshuaj ntsuam luam ntawv thiab varnishing. Rau cov hom phiaj no, tshwj xeeb vinyl-acrylic dyes yog tsim nyog. Ua ntej luam ntawv thiab varnishing, saum npoo ntawm cov nplooj ntawv yog degreased los ntawm so nrog cawv.
YPVC ua npuas ncauj daim ntaub ntawv
Vim qhov siab ntawm lub suab thiab rwb thaiv tsev kub thiab dej tsis kam, PVC profiles tau siv rau hauv qhov rais thiab qhov rooj ntau xyoo, thiab ua tiav rau balconies thiab loggias. Cov ntawv pob tshab thiab corrugated PVC yog siv rau hauv kev hloov cov vov tsev thiab iav.
PVC profile txawv ntawm lwm cov ntaub ntawv hauv nws txoj kev ntseeg siab, ua haujlwm ntev, tsis muaj kev ua haujlwm.
Kev txhim kho txuas ntxiv hauv cov txheej txheem ua thiab cov txheej txheem tsim khoom tso cai rau cov tuam txhab nrhiav pom cov ntawv thov tshiab rau cov khoom siv PVC. PVC ua npuas ncauj lev yog siv los tiv thaiv plam hauv pem teb hauv chav dej. Nwsmuaj ib qho kev ntxhib los mos thiab tsis nqus dej.
Zoo rau sab nraum zoov siv PVC ua npuas ncauj ntawv. Tus nqi ntawm cov khoom no yog qis dua li lwm hom thermoplastic. Nws yog haum rau kev tshaj tawm los yog ua ib qho zaub. Cov ntawv yas muaj huab cua zoo thiab UV tiv taus.
PVC ua npuas ncauj, uas muaj tus nqi sib tw, yog siv dav hauv kev tshaj tawm, kev tsim kho thiab kev lag luam. Nws yog cov khoom siv sib sib zog nqus thiab ruaj khov uas koj tuaj yeem nqa cov qauv tsim thiab xim daws rau lub neej.
Cov khoom siv hauv tsev tsim muaj ntau yam khoom siv PVC. Tag nrho cov ntawm nws yog txawv los ntawm ntau yam xim, daim ntawv thickness, zog. Tus nqi ntawm ib daim ntawv ntawm 2x3 m txawv ntawm 1,500 rubles rau 4,500 txhiab (nyob ntawm seb cov chaw tsim khoom thiab lwm yam ntxwv).
