Kugadziriswa kwemidziyo yepurasitiki ndiyo inonyanya kunyunguduka, kuyerera uye kutonhora zvimedu zverabha muzvigadzirwa zvakapedzwa mushure mekugadzika. Inzira yekudziisa uyezve kutonhora. Iri zvakare hurongwa hwekushandura mapurasitiki kubva kune zvimedu kuenda kune akasiyana maumbirwo. For theepurasitiki thermoforming muchina, iyo nzira yese inogona kugadziridzwa kuzere-otomatiki kushanda pasina manyorero ekushandisa, uye mhando yechigadzirwa yakagadzikana! Izvi zvinotevera zvinotsanangura maitiro ekugadzirisa kubva pakuona kwematanho akasiyana.
1. Nyunguduka
Iyo heater yemudziyo inobvumira iyo mbishi zvinhu zvimedu kuti zvinyunguduke zvishoma nezvishoma mukuyerera kwemvura. Zvigadzirwa zvakasiyana-siyana zvinonyanya kukodzera kutonga kwekushisa. Kuwedzera tembiricha kunomhanyisa kuyerera kwezvinhu zvakasvibirira, izvo zvinogona kuwedzera kushanda zvakanaka, asi kwete hazvo kuve nechokwadi chegoho. Kuenzana kwakakodzera kunofanira kuwanikwa. Uye zvakare, iyo yakanaka mhedzisiro uye maitiro ePP kana yakakwira kupisa kwekuputika ndeyekuti zvakanakisa kuita kuti iyo mbishi ienderere zvakanaka kune iyo inofa panguva yekugadzira, kuitira kudzivirira kusakwana kuzadza kana reflux. Reflux inoreva kuti iyo mbishi inoyerera inokurumidza kupfuura chiyero chekubuda, uye pakupedzisira inowedzera avhareji yekuyerera inoshanda, iyo yakaenzana nekuvandudzwa kweMFR. Ndiyo imwe yenzira dziripo dzekugadzirisa, Zvisinei, inokonzerawo kuparadzirwa kweMFR kusina kujairika, izvo zvingaita kuti kuwedzere kusagadzikana uye kuwedzera kukanganisa. Nekudaro, nekuda kwekushandisa, PP yakapera zvigadzirwa hazvisi zvigadzirwa zvine yakakwira dimensional kurongeka, saka kukanganisa hakuna kunaka.
2.Screw stem
Mazhinji ekugadziriswa kwePP anoenderana nescrew kutyaira fluidity, saka dhizaini yescrew ine simba guru. Iyo dhayamita inokanganisa kubuda, uye iyo compression ratio inokanganisa kukosha kwekumanikidza. Inobatawo kuburitsa uye kupedzwa kwechigadzirwa mhedzisiro, kusanganisira iyo yekusanganisa mhedzisiro yezvinhu zvakasiyana-siyana (Color Masterbatch, additives uye modifiers). Kuyerera kwezvinhu zvakabikwa zvakanyanya kunoenderana nehita, asi kukweshera uye kukweshera kwezvinhu zvakabikwa zvinogadzirawo friction yekupisa simba kuti ikurumidze kuyerera. Naizvozvo, iyo screw compression reshiyo idiki, kuyerera kudiki, uye kumhanya kutenderera kunofanirwa kuwedzerwa, zvichikonzera kukwenya kwakawanda kupisa simba pane sikuru ine yakakura compression reshiyo. Nokudaro, zvinowanzotaurwa kuti hapana tenzi mukugadzirwa kwepurasitiki, uye munhu anonyatsonzwisisa kushanda kwemuchina ndiye tenzi. Kupisa kwezvinhu zvakasvibirira hakusi chete heater, asiwo kunosanganisira kupisa kwekukakavadzana uye nguva yekudzivirira. Nokudaro, iri idambudziko rinoshanda. Chiitiko chinobatsira kugadzirisa matambudziko ekugadzira uye kuvandudza kugona. Kana iyo yekusanganisa mhedzisiro ye screw yakanyanya kunaka, dzimwe nguva-matanho maviri akasiyana masiruru kana biaxial screws akagadzirwa, uye chikamu chega chega chemhando dzakasiyana dzemasikiru anoiswa akaparadzana kuti awane akasiyana ekusanganisa maitiro.
3. Kufa kana kufa musoro
Plastic reshaping zvinoenderana ne mold kana kufa musoro. Iyo jekiseni yekuumba yapedzwa chigadzirwa ine matatu-dimensional, uye mold zvakare yakaoma. Dambudziko rekuderera rinofanirwa kutariswa. Zvimwe zvigadzirwa ndege, mitsetse uye tsono inoenderera chigadzirwa inofa. Kana ari maumbirwo akakosha, anorongwa seakakosha maumbirwo. Kutarisa kunofanirwa kubhadharwa kune dambudziko rekutonhora nekukasira uye saizi. Michina yakawanda yepurasitiki yakagadzirwa semajekiseni. Iyo extrusion simba inotungamirwa ne screw inokonzeresa kumanikidza kukuru pane diki yekuburitsa uye kunatsiridza kugadzirwa kwakanaka. Kana iyo musoro wekufa wakagadzirwa sendege, maitiro ekugadzira zvigadzirwa zvakaenzana zvakagoverwa pamusoro pese, dhizaini yehembe hanger kufa musoro yakakosha. Teerera kune extrusion mukana wekuwedzera hove gill pombi uye kudzikamisa kupihwa kwezvinhu zvakasvibirira.
4. Kutonhodza
Pamusoro pekudurura zvigadzirwa mugedhi resprue, iyo jekiseni mold inewo dhizaini yekutonhodza mbishi zvinhu mugedhi rekutonhodza. Extrusion molding inotsamira pane inotonhorera mvura chiteshi mu roller kuti iwane kutonhora mhedzisiro. Mukuwedzera, kunewo mapanga emhepo, mvura inotonhorera yakanyudzwa zvakananga pabhegi rinoputika, kuputika kusina maburi uye dzimwe nzira dzekutonhora.
5. Wedzera
Iyo yakapedzwa chigadzirwa kudzokorora uye kuwedzera kunosimudzira mhedzisiro. Semuyenzaniso, kumhanya kwakasiyana kwebhandi rekutakura rinofambiswa nemberi nekumashure ma rollers anokonzeresa kuwedzera. Simba rinotyisa rechikamu chekuwedzera chechigadzirwa chakapedzwa chinosimbiswa, izvo zvisiri nyore kubvarura, asi zviri nyore kwazvo kubvarura zvakadzika. Molecular uremu kugovera kuchakanganisawo mhedzisiro yekuwedzera mukugadzirwa kwepamusoro-kumhanya. Zvese zvigadzirwa zve extruded, kusanganisira mafiber, ane kusaenzana kwekuwedzera. Vacuum uye yakamanikidzwa mhepo kuumba inogona zvakare kutorwa seimwe nzira yekuwedzera.
6. Shukira
Chero ipi zvayo yakasvibirira ine dambudziko re shrinkage, iyo inokonzerwa nekushungurudzika kwemukati panguva yekuwedzera kwekushisa, kutonhora kunotonhora uye crystallization. Kazhinji, kuwedzera kwekupisa uye kutonhora kuderera zviri nyore kukunda, izvo zvinogona kuitwa nekurebesa nguva yekutonhora mukugadzirisa uye kuchengetedza kudzvanywa nguva dzose. Crystalline raw materials inowanzova nehukuru shrinkage musiyano pane asiri crystalline mbishi zvinhu, anenge 16% yePP, asi ingangoita 4% yeABS, iyo yakasiyana zvakanyanya. Ichi chikamu chinoda kukundwa pane mold, kana additives kuderedza shrinkage rate inowanzowedzerwa, LDPE inowanzowedzerwa kune extrusion plate kuti ivandudze dambudziko remutsipa.
Plastic thermoforming muchinainoshanda kune inenge yese thermoplastics. Mumakore achangopfuura, muchina wepurasitiki we thermoforming wakashandiswawo zvinobudirira kugadzira mamwe mapurasitiki ethermosetting. The molding kutenderera kweepurasitiki thermoforming muchinaipfupi (masekonzi mashoma kusvika kumaminitsi mashoma), uye inogona kuumba molds ine chimiro chakaoma, saizi yakarurama uye panguva imwe chete. GTMSMART thermoforming michina zvigadzirwa zvinosanganisiraPlastic Thermoforming Machine,Cup Thermoforming Machine,Plastic Vacuum Kugadzira Machine,Plastiki Ruva Pot Thermoforming Machine.
GTMSMART ipai ekutanga-kirasi michina pamutengo wakanakira uyo unogona kuzadzisa zviri nyore zvido zvako zvekugadzira zvakawanda. Ongorora mhando yedu yezvigadzirwa uye iwe unowana akawanda epamusoro-kuita sarudzo dzinoenderana nezvinodiwa zvako.
Nguva yekutumira: Oct-31-2021