Kutulutsa kwa ma polima

Extrusionndi njira yopangira zinthu zazitali zokhazikika (ndodo, mapepala, mapaipi, mafilimu, zokutira waya) kukakamiza kufewetsa.polimakupyolera mu kufa ndi kutsegula.

Zinthu za polima zokhala ngati ma pellets zimadyetsedwa ku extruder kudzera pa hopper.Zinthuzo zimaperekedwa patsogolo ndi wononga zodyera ndikukanikizidwa kudzera pakufa, kusinthidwa kukhala chopangidwa ndi polima mosalekeza.

Zinthu zotenthetsera, zoyikidwa pamwamba pa mbiya, chepetsani ndikusungunula polima.Kutentha kwa zinthuzo kumayendetsedwa ndi thermocouples.

Zomwe zimatuluka mukufa zimazizidwa ndi mpweya wowombedwa kapena m'madzi osamba.

Kutulutsa kwa ma polima(mosiyana ndi extrusion ya zitsulo) ndi mosalekeza ndondomeko kwa nthawi yaitali ngati pellets yaiwisi amaperekedwa.

Extrusion ntchito makamaka chifukwaThermoplastics,komaElastomersndiThermosetsnawonso akhoza kuchotsedwa.Pamenepakulumikizamawonekedwe pa Kutentha ndi kusungunuka kwa zinthu mu extruder.

Thermoplastic extruded mankhwala akhoza kupangidwanso ndiThermoformingnjira.