Ongororo yePVC Stretch Fabric Forming process
PVC jira rakatambanudzwa, rakapetwa uye rakasimba rekugadzira zvinhu, rinoshandiswa zvakanyanya muzvigadzirwa zvekunze, matende, machira ekushambadza, uye midziyo yekudzivirira yekurapa. Kugadzira kwayo kunobata zvakananga zvimiro zvechigadzirwa uye hupenyu hwesevhisi, zvichiita kuti zvive zvakakosha kugona kuyerera kwepakati.
Magadzirirwo ePVC stretch fabric ane matanho mana akakosha: raw material mixing, extrusion calendering, stretching and orientation, uye post{0}}processing. Chekutanga, polyvinyl chloride (PVC) resin inosanganiswa nezvinowedzerwa zvakaita seplasticizers, stabilizers, uye lubricant mumiyero yakakodzera uye yakapararira muhigh-speed blender kuita paste ine viscosity chaiyo. Sarudzo yezvinowedzera pane ino nhanho inokanganisa zvakananga kuchinjika kwezvinhu, kuramba mamiriro ekunze, uye UV kuramba.
Musanganiswa unobva wapinda muextruder, umo unonyungudutswa patembiricha yepamusoro (inenge 160-180 degree) uye wobuditswa neT-die kuita sheet. Pepa racho rinozoiswa calender nema rollers kudzora ukobvu uye kutsvedzerera kwepasi. Iyo tembiricha yecalendering inofanirwa kunyatso kudzorwa kudzivirira kuparara kwezvinhu nekuda kwekupisa kana kushushikana kwemukati kunokonzerwa nekudzikira.
Kutambanudza uye kutarisisa ndiyo musimboti muitiro unopa PVC yakatambanudzwa jira nekukwirira kwayo. Bepa rinopisa (kazhinji 80-120 madhigirii) risati ratambanudzwa uniaxially kana biaxially mumuchina welongitudinal kana wakachinjika. Iyo yakatambanudzwa reshiyo inowanzoita 2-5 nguva, kuenzanisa macheni emamorekuru munzira yesimba, zvakanyanya kunatsiridza kurebesa kwechinhu uye kusimba. Zvimwe zvigadzirwa zvepamusoro-soro zvinoshandisa sequential kutambanudza tekinoroji kuti iwedzere kukwirisa mechanic chiyero.
Pakupedzisira, jira rakatambanudzwa rinosangana nekupisa uye kutonhora. Kugadzirisa kupisa kunosanganisira nguva pfupi yekushisa kwepamusoro (inenge 100-130 dhigirii) kudzikamisa chimiro chemolecular uye kubvisa kushushikana kwasara. Kutonhodza kunoitwa nemhepo kana mvura kuitira kugadzikana kwedimensional. Zvimwe zvigadzirwa zvinodawo kurapwa kwepamusoro, senge UV-resistant coatings kana flame retardants, kuwedzera kushanda.
Iyo yekuumba maitiro ePVC yakatambanudzwa jira inoda kwakasimba kutonga kwekushisa, kumhanya, uye tension paramita. Kutsauswa mune chero nhanho kunogona kukonzera kusadzika kwekuita zvinhu. Kufambira mberi kwetekinoroji, sekuunzwa kwekutarisa pamhepo uye automated control, kuri kufambisa maitiro echizvino-zvino kusvika pakubudirira kukuru uye kushamwaridzana kwezvakatipoteredza, zvichipa zvigadziriso zvemhando yepamusoro zvekushandisa pasi pemvura.