Kodi Plastic Extrusion Machine Imagwira Ntchito Motani?

Pulasitiki extrusion, yomwe imadziwikanso kuti plasticating extrusion, ndi njira yopititsira patsogolo yopangira zida za thermoplastic - mumtundu wa ufa, ma pellets kapena granulates - amasungunuka mowirikiza kenako ndikukankhidwa kuchokera pakupanga kufa ndi kukakamizidwa.Mu screw extrusion, kupanikizika kumabwera kuchokera ku screw rotation motsutsana ndi khoma la mbiya.Pamene kusungunuka kwa pulasitiki kumadutsa mukufa, kumapeza mawonekedwe a dzenje ndikusiya extruder.The extruded mankhwala amatchedwa extrudate.

Extruder wamba imakhala ndi zigawo zinayi:

Feed Zone

M'dera lino, kuya kwa ndege kumakhala kosasintha.Mtunda wapakati pa mainchesi akulu omwe ali pamwamba pa ndegeyo ndi m'mimba mwake pang'ono wa wononga pansi pa ndegeyo ndi kuya kwake.

Transition Zone kapena Compression Zone

Kuzama kwa ndege kumayamba kuchepa mderali.M'malo mwake, zinthu za thermoplastic zimapanikizidwa ndikuyamba kupanga pulasitiki.

Mixing Zone

M'dera lino, kuya kwa ndege kumakhala kosasintha.Kuonetsetsa kuti zinthuzo zasungunuka kwathunthu ndikusakanikirana mosakanikirana, chinthu chapadera chosakanikirana chikhoza kukhalapo.

Metering Zone

Malowa ali ndi kuya kwakung'ono kwa ndege kusiyana ndi malo osakanikirana koma amakhala osasinthasintha.Komanso, kupanikizika kumakankhira kusungunula kudzera mu mawonekedwe akufa kumalo awa.

Komanso, kusungunuka kwa kusakaniza kwa polima kumayambitsidwa ndi zinthu zitatu zazikulu:

Kutumiza Kutentha

Kutengerapo kutentha ndi mphamvu yomwe imasamutsidwa kuchokera ku injini ya extruder kupita ku shaft extruder.Komanso, kusungunuka kwa polima kumakhudzidwa ndi mawonekedwe a screw komanso nthawi yokhalamo.

Kukangana

Izi zimabweretsedwa ndi kukangana kwamkati kwa ufa, screw profile, screw speed, ndi feed rate.

Extruder Barrel

Zida zitatu kapena zingapo zodziyimira pawokha zowongolera kutentha zimagwiritsidwa ntchito kusunga kutentha kwa migolo.