PVC cob rau hluavtaws leat
PVC cob rau hluavtaws hluavtaws,
PVC rau Synthetic tawv, PVC Tawv raw khoom, PVC cob rau tawv,
PVC tawv ntaub yog zoo ib yam li PU tawv ntaub.Hloov cov polyurethane, PVC tawv ntaub yog tsim los ntawm kev sib txuas ntawm polyvinylchloride nrog stabilizers (tiv thaiv), plasticizers (kom soften) thiab lubricants (kom saj zawg zog), thiab tom qab ntawd siv rau cov khoom siv hauv paus.
PVC-raws li tawv yog ib qho tseem ceeb ntawm cov tawv tawv.Nws yog tsim los ntawm kev hloov cov pab pawg hydrogen nrog cov chloride pawg hauv pawg vinyl.Cov khoom no yog tom qab sib xyaw nrog cov tshuaj los tsim cov tawv hluavtaws.Cov khoom siv tseem ceeb hauv cov txheej txheem no yog PVC.PVC-raws li tawv yog thawj cov tawv hluavtaws tsim hauv xyoo 1920s.Nws suav hais tias yog lub zog siab thiab tiv taus ntau yam kev nyab xeeb.Nws yog ib qho yooj yim-rau-tu thiab huv cov ntaub ntawv thiab yog li ntawd nyiam nyob rau hauv ntau yam lag luam.
PVC tawv manufacturing txheej txheem
1. thawj txoj kev yog calendering txoj kev.
Yog li thawj zaug peb yuav tsum sib tov cov khoom siv raw PVC thiab cov xim thiab lwm yam, thiab ua kom cov khoom zoo zoo.
2.them peb coated cov khoom sib xyaw ntawm cov ntaub, kom txog rau thaum cov txheej txheem no cov khoom semi-tiav peb hu ua cov khoom siv.
yog li cov khoom siv hauv paus suav nrog 2 txheej: pvc txheej rau saum npoo thiab nraub qaum yog ntaub.
Tom qab ntawd cov khoom siv hauv paus yuav raug xa mus rau hauv lub tshuab foaming, uas yog cov kab ntau lawm ntev nrog qhov kub thiab txias, cov khoom sib xyaw yuav foaming ntawm no, yog li cov pvc yuav thicker, lub thickness ntawm pvc txheej yuav ua tau ob npaug ntawm lub hauv paus pvc txheej.
Tom qab foaming, cov khoom yuav raug embossed nrog kev ntxhib los mos, ntawm no peb siv embossing cov menyuam uas muaj kev ntxhib los mos ntawm cov menyuam, koj tuaj yeem xav tias nws yog pwm, textures ntawm cov menyuam yuav raug xa mus rau saum npoo ntawm pvc txheej, ces peb tuaj yeem sib txawv. kev ntxhib los mos.
ces peb yuav ua qhov chaw kho mob, xws li kho cov xim los yog luam tawm ib co duab kos rau saum npoo.
Hauv qab no yog cov khoom ntws ntawm pvc tawv
Nta
PVC yog ib qho ntawm cov khoom siv thermoplastic feem ntau siv.Nws tuaj yeem siv los ua cov khoom lag luam nrog lub siab tawv thiab lub zog, xws li cov kav dej thiab fittings, profiled qhov rooj, qhov rais thiab cov ntawv ntim.Nws tseem tuaj yeem ua cov khoom muag muag, xws li cov yeeb yaj kiab, cov ntawv txheeb, cov xaim hluav taws xob thiab cov cables, floorboards thiabhluavtaws tawv, los ntawm kev ntxiv ntawm plasticizers
Tsis muaj
| Qib | QS-650 | S-700 Nws | S-800 Nws | S-1000 Nws | QS-800F | QS-1000F | QS-1050 P | |
| Nruab nrab polymerization degree | 600-700 Nws | 650-750 | 750-850 : kuv | 970-1070 Ib | 600-700 Nws | 950-1050 : kuv | 1000-1100 Nws | |
| Pom tseeb qhov ceev, g / ml | 0.53-0.60 Nws | 0.52-0.62 Nws | 0.53-0.61 Nws | 0.48-0.58 Nws | 0.53-0.60 Nws | ≥0.49 | 0.51-0.57 Nws | |
| Volatiles cov ntsiab lus (dej suav nrog), %, ≤ | 0.4 | 0.30 Nws | 0.20 ib | 0.30 Nws | 0.40 Nws | 0.3 | 0.3 | |
| Plasticizer nqus ntawm 100g resin, g, ≥ | 15 | 14 | 16 | 20 | 15 | 24 | 21 | |
| VCM residual, mg/kg ≤ | 5 | 5 | 3 | 5 | 5 | 5 | 5 | |
| Kev tshuaj ntsuam % | 0.025 hli mesh% ≤ | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| 0.063m mesh % ≥ | 95 | 95 | 95 | 95 | 95 | 95 | 95 | |
| Ntses qhov muag naj npawb, No./400cm2, ≤ | 30 | 30 | 20 | 20 | 30 | 20 | 20 | |
| Tus naj npawb ntawm impurity hais, No., ≤ | 20 | 20 | 16 | 16 | 20 | 16 | 16 | |
| Dawb (160ºC, 10 feeb tom qab), %, ≥ | 78 | 75 | 75 | 78 | 78 | 80 | 80 | |
| Daim ntawv thov | Txhaj Moulding Materials, Cov Khoom Siv Yeeb Nkab, Cov Khoom Siv Calendering, Rigid Foaming Profiles, Lub Tsev Sheet Extrusion Rigid Profile | Ib nrab-rigid Sheet, Phaj, Pem Teb Khoom, Linning Epidural, Cov Khoom Siv Hluav Taws Xob, Cov Khoom Siv Tsheb | Pob tshab zaj duab xis, ntim, duab los qhia, txee thiab hauv pem teb, khoom ua si, lub raj mis thiab ntim | Cov ntawv, tawv tawv, cov khoom siv yeeb nkab, Profiles, Bellows, Cable Protective Pipes, Ntim Zaj duab xis | Cov khoom siv Extrusion, Hluav Taws Xob, Cov Khoom Siv Hluav Taws Xob, Cov Khoom Siv Hluav Taws Xob thiab cov phaj | Cov ntawv, Calendering Materials, Pipes Calendering Tools, Insulating Materials ntawm Hlau thiab Cables | Cov kav dej, cov kav dej haus, cov kav dej ua npuas dej, cov kav dej kav dej, cov kav hlau, cov kav dej tsis zoo | |
