Fense ea PVC e etsoa joang?Ho thoe'ng ka Extrusion?

Fense ea PVC e entsoe ka mochini o kopanyang habeli oa screw extrusion.

PVC extrusion ke ts'ebetso e potlakileng ea tlhahiso eo ho eona polasetiki e tala e qhibilihang ebe e etsoa hore e be profil e telele e tsoelang pele.Extrusion e hlahisa lihlahisoa tse kang litlaleho tsa polasetiki, liphaephe tsa polasetiki, litšepe tsa PVC tsa marang-rang, liforeimi tsa lifensetere tsa PVC, lifilimi tsa polasetiki, sheeting, lithapo le litlaleho tsa terata tsa PVC, li sebelisoa haholo libakeng tse ngata.

Ts'ebetso ena ea extrusion e qala ka ho fepa motsoako oa PVC ho tloha ho hopper ho ea moqomong oa extruder.Motsoako o qhibiliha butle-butle ke matla a mechine a hlahisoang ke li-screws le li-heaters tse hlophisitsoeng haufi le barrel.Polima e entsoeng ka ho qhibilihisoa e ntan'o qobelloa hore e be "die" kapa "extrusion" molds, e etsang hore motsoako oa PVC o be sebopeho se itseng, joalo ka terata, seporo sa terata, kapa li-picket tsa terata tse thatafalang nakong ea ho pholisa.

Ka extrusion ea PVC, e tala metsoako lintho tse bonahalang e ka tloaelo ka mokgwa wa phofo hore khoheli feptjoa ho tloha holimo mounted hopper ka barrel ea extruder.Li-additives tse kang pigment, UV inhibitors le PVC stabilizer hangata li sebelisoa 'me li ka kopanngoa le resin pele li fihla hopper.Ka hona, mabapi le tlhahiso ea terata ea PVC, re fana ka maikutlo a bareki ba rona hore ba lule ba e-na le 'mala o le mong feela ka tatellano e le' ngoe, kapa litšenyehelo tsa ho fetola hlobo tsa extrusion li ka ba holimo.Leha ho le joalo, haeba bareki ba tlameha ho ba le lifaele tsa mebala ka tatellano e le 'ngoe, lintlha li ka buisanoa.

Ts'ebetso ena e tšoana haholo le ho bopa ente ea polasetiki ho tloha ntlheng ea theknoloji ea extruder, le hoja e fapana ka hore hangata ke ts'ebetso e tsoelang pele.Le hoja pultrusion e ka fana ka litlaleho tse ngata tse tšoanang ka bolelele bo tsoelang pele, hangata ka ho matlafatsa ho eketsoa, ​​​​sena se finyelloa ka ho hula sehlahisoa se phethiloeng ka hlobo ho e-na le ho ntša "polymer mellt" ka hlobo.Ka mantsoe a mang, bolelele ba profil ea terata, joalo ka lipalo, liporo le li-picket, kaofela li ka etsoa ka bolelele bo itseng.Mohlala, terata e felletseng ea lekunutu e ka ba bolelele ba 6ft ka bophara ba 8ft, hape e ka ba bolelele ba 6ft ka bophara ba 6ft.Ba bang ba bareki ba rona, ba reka thepa e tala ea terata, ebe ba seha bolelele bo itseng ka har'a lithupelo tsa bona, 'me ba etsa terata e fapaneng e fapaneng ho fihlela litlhoko tsohle tsa bareki ba bona.