Direct extrusion ndeimwe yemaitiro ari kukura eExtrusion tekinoroji.Pahwaro hwekuongorora hunhu hwekutenderedza twin screw extrusion yekusanganisa maitiro, mamwe mapoinzi akakosha nezve midziyo, tekiniki, uye mold yekunangana extrusion ine co inotenderera twin screw extruder iripo.
Twin-screw extruder inoshandiswa zvakanyanya kuenderera mberi kugadzirisa kwepolymer.Zvingave zvinogona kubudiswa zvakananga, ndiko kuti, kana inogona kupedzwa panguva imwe chete, inogona kugoverwa muzvikamu zviviri: co-directional rotation uye hetero-directional rotation.Coaxial twin screw mumusanganiswa uye molding extrusion.Iva nesimba rakasimba rekusanganisa, rinonyanya kushandiswa kushandura, kuzadza, 1 zvakananga kusimudzira uye epurasitiki extrusion mamiriro uye yakasanganiswa nekugadzirwa kwekaviri screw alloys kusanganisa mashandiro, iyo extrusion system inowanzo tora iyo modular yakananga extrusion mamiriro ari mune izvo zvinhu ndiyo nzvimbo. yekunyatso kusanganisa chimiro, nekusiyana synfuels fiasco chubhu chikamu, musanganiswa weiyo screw element kugutsa iyo extruder inogona kuvaka yakakwana kudzvanywa uye kuyerera kugadzikana.Zvinoenderana neiyo chaiyo yekusanganisa nzira yekufambisa, kunyungudika, kusanganisa, kudzika, homogenizing uye zvichingodaro, mamiriro e-co-directional twin-screw extruder inoshandiswa mukusanganisa inotanga kuongororwa.
1.Non - directional twin - screw inogona kumisa kudzvanywa kwepamusoro uye kuyerera kwakadzikama
Kutenderera kumhanya uye kupararira mhedzisiro, inonyanya kushandiswa kune zvigadzirwa zvinoda chaiyo chikamu saizi kuumbwa uye extrusion, senge cone-direction twin-screw screw yakakwirira hama yekumhanya inogona kuburitsa yakakwira chimiro mapatya-screw extruder yePVC mbiri yekuumba uye extrusion.Kuenzaniswa neshear rate uye yakakura kushushikana kweshear, iyo yakakwirira yekutenderera kumhanya, zviri nani mhedzisiro.Iyo single-screw extruder inogona kuchinjika kune yakafara nzvimbo, asi ayo akasiyana maitiro haana kunaka seanoparadzira kusanganisa maitiro.panguva imwe chete, iyo yakakwirira kutenderera kumhanya yakanetesa kusimuka kwakanaka kwepatya sikuruu yakakurumbira, siruu imwe chete inonyanya kushandiswa kuumba extrusion, screw general basa, kuitira kuti kugadzikana kweiyo extrusion.
Special dhizaini zvinoenderana chaiyo extrusion muitiro uye chigadzirwa.
2.Principle ye screw element design
Mukushandiswa kwezvinhu zvakakosha zvigadzirwa zvekugadzira zvinoda kusanganisa granulation uye kuumba extrusion kusanganisa negwara rakafanana re screw element ye twin screw kazhinji zvinoenderana ne "kubva pakuchena" matanho maviri ekutanga, uye kazhinji negwaro rimwechete remapatya screw. uye imwe sikuruu kupedzisa dhizaini, iyi musimboti inosarudza kuti longitudinal ndima inofanira kuvhurika, kuitira kuti maviri akurumidze kupinda.Mushure me granulation yekaviri screw musanganiswa, zvinhu zvinotonhodzwa kusvika kukamuri yekushisa, uye kuchinjana kwezvinhu kunoitika pakati pesikurwa mbariro, sezvinoratidzwa mumufananidzo 1 (a) . Kana iyo longitudinal inoyerera mugero yakazaruka, tembiricha inokwira zvakare kusvikira zvinhu zvanyunguduka.Mushure mekugadzirisa kaviri, zvinokwanisika kuvhura iyo inotenderera inoyerera chiteshi kuti uone kuwedzera kwekushandiswa kwepadhuze screw slots yeiyo screw, kuwedzera kwemutengo wekugadzirisa, kurebesa kutenderera kwekugadzira uye kuchinjana kwezvinhu.Nekuda kweizvozvo, iyo yakagoverwa kusanganisa yekupisa nhoroondo inowedzera uye kuita kunoderera.zvinongotungamira kune dambudziko: kugona, asi zvakare kunoderedza kunaka kwekutamisa mhedzisiro.
Nguva yekutumira: Jul-18-2019