Kodi Migolo ya Pulasitiki Imodzi Imakulitsa Bwanji Ubwino Wazinthu Zapulasitiki

Makina a Single Plastic Screw Barrel amapereka chiwongolero cholondola pakusungunuka ndi kusakanikirana, zomwe zimatsogolera kuzinthu zapulasitiki zosagwirizana. Pafupifupi 45% yaKuwomba Screw Barrel Factoriesamakondaziboliboli imodzichifukwa cha luso lawo. M'mapangidwe amphamvu,kuchuluka kwa zolakwika kumatha kutsika mpaka 90%. Ambiri opanga kusankhaPVC chitoliro chimodzi mbiya screwchifukwa chodalirika.

Mfundo Zogwirira Ntchito za Pulasitiki Single Screw

Kusungunula ndi Homogenization Mechanism

A mbiya ya pulasitiki imodziamagwiritsa ntchito njira zophatikizira zamakina ndi matenthedwe kusungunula ndikusakaniza zinthu zapulasitiki. Chophimbacho chimazungulira mkati mwa mbiya, kukankhira mapepala apulasitiki patsogolo. Pamene ma pellets akuyenda, zinthu zingapo zofunika zimachitika:

• Kumeta ubweya wamakina ndi kukangana pakati pa wononga ndege ndi makoma a migolo kumapangitsa kutentha. Kutentha kumeneku kumakweza kutentha kwa pulasitiki.
• Zotenthetsera zakunja pa mbiya zimawonjezera kutentha, kuonetsetsa kuti pulasitiki imasungunuka mofanana.
• Thecompression zone mkati mwa mbiyaamachepetsa danga, zomwe zimawonjezera kuthamanga ndi kutentha. Kusintha kwapang'onopang'ono kumeneku kumasungunula polima kuchoka ku cholimba kupita ku malo osungunuka kwathunthu.
• Chophimba chozungulira chimasakaniza pulasitiki yosungunuka bwino. Kusakaniza uku kumapangitsa kuti zinthuzo zikhale zofanana, zokhala ndi zofananira ponseponse.
• Zowonjezera, monga ma colorants kapena stabilizer, zitha kuphatikizidwa panthawiyi. Zosakaniza za screw zimathandizira kugawa zowonjezera izi mofanana.
• The metering zone kumapeto kwa wononga amakhalabe kuthamanga ndi kuyenda, kukonzekera zakuthupi siteji yotsatira processing.

Zindikirani: Kusungunula ndi kusakaniza kofanana ndikofunikira popanga zinthu zapulasitiki zokhala ndi mphamvu zodalirika, mtundu, komanso kutha kwa pamwamba.

Kayendetsedwe ka Zinthu ndi Kuwongolera Kupanikizika

Chitsulo chimodzi cha pulasitiki chimagwiranso ntchito yofunikira pakusunthira zinthu patsogolo ndikuwongolera kupsinjika panthawi yokonza. Mfundo zingapo zakuthupi zimatsogolera izi:

• Zowononga ndi mbiya zimagwirira ntchito limodzi kuti zipereke zinthu zapulasitiki pansi pa kutentha kwambiri komanso kupanikizika.
• Mapangidwe a screw, monga kuya kwa tchanelo ndi kupsinjika, amawongolera kupsinjika ndi kumeta ubweya wa zinthu zomwe zimachitika.
• Kutentha kochuluka komwe kumafunika kusungunuka kumachokera ku kukangana pamene wononga chimazungulira ndi pulasitiki. Kutentha kwapang'onopang'onoku ndikofunika kwambiri kuposa kutentha kwa mbiya.
• Thefeed zone imagwira ntchito ngati malo ozizira, pomwe tinthu tapulasitiki timamatira ku mbiya koma timazembera pa muzu wa screw. Izi zimathandiza kupititsa patsogolo zinthu bwino.
• Kulowera kolimba pakati pa wononga ndi mbiya kumalepheretsa kubweza, kuonetsetsa kuti zinthuzo zikuyenda mbali imodzi.
• Kuponderezedwa pa screw nsonga kumawonetsa kukana kwa zida zapansi pamtsinje. Kusunga kukakamiza koyenera ndikofunikira pakusakaniza ndi chitetezo.
• Njira zoziziritsira, monga migolo yoziziritsidwa ndi madzi, zimathandizira kuwongolera kutentha kwa screw. Kuwongolera kutentha kumeneku kumapangitsa kuti zinthu ziziyenda bwino komanso kuti kuthamanga kukhale kokhazikika.
• Kukula ndi mawonekedwe a ma granules apulasitiki, liwiro la screw, ndi mapangidwe a poyambira zonse zimakhudza kuchuluka kwa zinthu zomwe zimadutsa mumbiya komanso momwe kupanikizika kumasinthira pogwira ntchito.

Langizo: Kuwongolera kukakamiza koyenera komanso kutumiza zinthu kumathandizira kupewa zolakwika ndikuwonetsetsa kuti pulasitiki iliyonse ikukwaniritsa zofunikira.

Zofunika Zopangira Zamphindi Yokha ya Pulasitiki Screw

Screw Geometry ndi Compression Ratio

Sungani geometryimayima ngati chinthu chofunikira kwambiri pakuchita kwa Single Plastic Screw Barrel. Akatswiri amapanga wononga ndi kutalika kwa m'mimba mwake (L/D), kuya kwa groove, ndi ngodya za helix kuti zigwirizane ndi mapulasitiki osiyanasiyana. Zinthu izi zimakhudza momwe makina amasungunulira, kusakanikirana, komanso kutumiza zinthu.

• Kuchuluka kwa L/D kumawonjezera kutalika kwa wononga. Izi zimalola nthawi yochulukirapo kuti kutentha kugawidwe mofanana, zomwe zimapangitsa kuti kusungunuka ndi pulasitiki. Komabe, ngati chiŵerengerocho chiri chokwera kwambiri, chikhoza kukweza mphamvu yogwiritsira ntchito mphamvu ndi kuwononga zovuta zamakina.
• Kwa mapulasitiki osamva kutentha ngati PVC, chiŵerengero chachifupi cha L/D chimalepheretsa kuwonongeka kwa kutentha. Mapulastiki omwe amafunikira kutentha kwambiri ndi kupanikizika amapindula ndi zomangira zazitali.
• Chiŵerengero cha kuponderezana, chomwe chikufanizira kuchuluka kwa gawo la chakudya ndi gawo la metering, zimakhudza momwe pulasitiki imapangidwira ndi kusungunuka. Kuphatikizika kwakukulu kumawonjezera kusakanikirana kofanana ndi kachulukidwe ka pulasitiki. Ngati atakwera kwambiri, angayambitse kusungunuka kosakwanira kapena kugwiritsa ntchito mphamvu zambiri.
• Kuzama kwa groove kumasintha pambali pa screw. Mitsempha yakuya mu gawo la chakudya imathandizira kupititsa patsogolo zinthu, pomwe mitsinje yozama mu gawo la mita imakulitsa kumeta ubweya ndikuwongolera kusakanikirana.
• Ngodya ya helix imakhudza momwe pulasitiki imasungunulira mwachangu komanso kuchuluka kwa zinthu zomwe screw imatha kupanga. Akatswiri amasankha ngodya yoyenera kutengera mawonekedwe apulasitiki, monga ufa kapena ma granules.
• Kusiyanitsa pakati pa screw ndi mbiya kuyenera kukhala kolimba. Kuloledwa kwambiri kumabweretsa kubwerera mmbuyo ndi kutenthedwa, zomwe zingachepetsekhalidwe la mankhwala.

Chiŵerengero choyenera cha screw geometry ndi compression ratio zimatsimikizira kusungunuka koyenera, kusakaniza bwino, ndi kupanikizika kosasunthika, zonse zomwe ziri zofunika popanga zinthu zapulasitiki zapamwamba.

Kusankha Zinthu za Migolo ndi Kuchiza Pamwamba

Kusankhidwa kwa mbiya ndi chithandizo chake chapamwamba kumathandizira kwambiri kulimba ndi magwiridwe antchito a Single Plastic Screw Barrel. Opanga nthawi zambiri amagwiritsa ntchito zitsulo zamphamvu kwambiri, zitsulo zosapanga dzimbiri, kapena zida zapamwamba kuti athe kupirira kutentha kwambiri komanso kukakamizidwa kwa pulasitiki.

• Mitundu yachitsulo, kuphatikiza 38CrMoAL ndi 40Cr, imapereka mavalidwe abwino kwambiri komanso kukana dzimbiri. Zidazi zimayendetsa kupsinjika kwa kusinthasintha kothamanga kwambiri komanso mphamvu za centrifugal.
• Mankhwala ochizira pamwamba monga nitriding (Melonite), chitsulo cha chrome, ndi zokutira za phosphate zimakulitsa moyo wa mbiya. Nitriding imagawaniza nayitrogeni muzitsulo, ndikupanga malo olimba, osachita dzimbiri. Kuyika kwa Chrome kumawonjezera chitetezo china ndikuwongolera kuyeretsa.
• Migolo yachitsulo chosapanga dzimbiri imapereka kukana kwa dzimbiri kwachilengedwe ndikusunga kulondola pakapita nthawi. Komabe, amafunikirabe kusamalidwa pafupipafupi kuti apewe kuvala.
• Opanga ena amagwiritsa ntchito zokutira zokhala ndi ceramic ngati Cerakote pofuna kutentha kowonjezera komanso kukana kuvala. Zopaka izi zimalolanso kusintha kwamitundu.
• Kwa migolo ya aluminiyamu, anodizing imawonjezera kulimba kwa pamwamba komanso kukana kwa dzimbiri, ngakhale izi ndizofala kwambiri pamagwiritsidwe apadera.

Kuphatikizika koyenera kwazinthu ndi chithandizo chapamwamba kumatsimikizira kuti mbiyayo imakana kuvala, dzimbiri, ndi mapindikidwe, kukhalabe ndi khalidwe lazogulitsa komanso kuchepetsa nthawi yopuma.

Kuwongolera Kutentha ndi Malo Owotcha

Kuwongolera kutentha koyenera ndikofunikira kuti Single Plastic Screw Barrel kuti ikhalebe ndi momwe zinthu ziliri bwino. Opanga amagawa mbiya m'magawo angapo otenthetsera, iliyonse ili ndi zowongolera paokha. Kapangidwe kameneka kamalola kuwongolera bwino kutentha kwa mbiya yonse.

• Makina apamwamba amagwiritsa ntchito zowongolera za PID, kuwongolera ma cascade, komanso ma algorithms olosera kuti chigawo chilichonse chizikhala kutentha komwe mukufuna.
• Zomverera zimawunika kutentha kosungunuka mu nthawi yeniyeni. Dongosololi limasintha mphamvu ya chotenthetsera kapena liwiro la screw kuti likhale lokhazikika.
• Kutentha kwamitundu yambiriimalepheretsa malo otentha kapena ozizira, omwe angayambitse kusungunuka kosafanana kapena kuwonongeka kwa mankhwala omaliza.
• Nthawi zina, zinthu zosinthira gawo zimathandizira kuyamwa kapena kutulutsa kutentha, kupangitsa kuti kutentha kukhale kokhazikika m'dera lililonse.
• Kuwongolera bwino kwa kayendedwe ka mpweya ndi mafani obwereza kumapangitsa kuti kutentha kufanane, monga momwe zimawonekera mu uvuni wamafakitale ochita bwino kwambiri ndi ma extruder.
• Kutentha kwa zonalsikuti zimangowonjezera mtundu wazinthu komanso zimawonjezera mphamvu zamagetsi komanso liwiro la kupanga.

Kutentha kosasinthasintha m'madera onse kumapangitsa kuti pulasitiki isungunuke mofanana, kusakanikirana bwino, komanso kuyenda bwino, zomwe zimapangitsa kuti zinthu zikhale ndi mphamvu zamakina apamwamba komanso zomaliza.

Kukhathamiritsa Kwadongosolo ndi Mgolo Umodzi wa Pulasitiki Screw

Kuwongolera Kusungunula Kolondola ndi Kusakaniza

Kukhathamiritsa kwa ndondomeko kumayamba ndikuwongolera bwino kusungunuka ndi kusakaniza. Akatswiri amapanga zomangira zokhala ndi madera apadera - chakudya, kuponderezana, ndi mita - kuti aziwongolera pulasitiki pagawo lililonse. Kapangidwe kameneka kamapangitsa kuti polima azifewetsa pang'onopang'ono ndikusakanikirana bwino. Zopangira zomangira makonda, monga zotchinga ndi zosakaniza zomwaza, zimapangitsa kuti zisungunuke bwino komanso kulumikizana kwa ulusi. Zowonjezera izi zimapangitsa kuti pakhale zovuta zochepa komanso kuchepetsa zinyalala. Pankhani ina ya mafakitale, kampani inachulukitsa ntchito ndi 23% ndikuchepetsa zotsalira ndi 15% pambuyo pokonza mapangidwe a screw ndi kuwongolera ndondomeko.

Machitidwe oletsa kupanikizika amathandizira kwambiri. Amasintha liwiro la wononga kuti akhalebe ndi mphamvu yokhazikika, yomwe imachepetsa kusinthasintha. Mayesero awonetsa kuchepa kwa 20-40% kusinthasintha kwapakatikati, zomwe zimapangitsa kuti pakhale kusungunuka kosasunthika komanso kulolerana kwamphamvu.Kuwunika kutentha kwanthawi yeniyenindi makina otenthetsera apamwamba amasunga mbiya iliyonse pa kutentha koyenera. Njirayi imathetsa malo otentha kapena ozizira, kuonetsetsa kuti yunifolomu imasungunuka bwino komanso kuchepetsa kusiyana kwa mankhwala.

Zindikirani: Kusakaniza kwa yunifolomu ndi kupanikizika kosasunthika kumathandiza opanga kuti akwaniritse khalidwe lazogulitsa, ngakhale kupanga kwambiri.

Kuchepetsa Kuwonongeka kwa Zinthu ndi Zowonongeka

Kuchepetsa kuwonongeka kwa zinthu ndi zolakwika kumafuna zomangira mosamala komanso kapangidwe kazinthu. Mainjiniya amawonjezera zomangira zowulukira kuti athetse madera oyenda osasunthika, omwe angayambitse kuwonongeka kwa utomoni. Kukhazikika kwa screw geometry ndi kusintha kosalala kumalepheretsa pulasitiki kumamatira kapena kuyaka. Mwachitsanzo, aPE PP jekeseni akamaumba mbiya screwamagwiritsa ntchito zigawo zapadera zosakaniza kulimbikitsa kusungunuka kofanana, komwe kumachepetsa madontho ozizira ndi zinthu zosasungunuka.

Mafakitole amafotokoza za kuchuluka kwa ntchito zopanga mwachangu komanso magawo ochepa omwe amakanidwa akamaliza kukonza izi. Mizere yowotcherera bwino komanso kuchepera kofananako kumathandizanso kuti zinthu zikhale zabwino kwambiri. Kutentha kwapamwamba ndi machitidwe owongolera kupanikizika amakhalabe abwino pokonza zinthu, kumachepetsanso kuwonongeka kwa zinthu pakuumba. Kusamalira pafupipafupi komanso kuphunzitsa oyendetsa kumawonetsetsa kuti Single Plastic Screw Barrel ikupitiliza kupereka zodalirika, zopanda chilema.

Ubwino Wabwino Wa Mgolo Wa Pulasitiki Umodzi Pa Njira Zina

Single vs. Twin Screw Barrel Performance

Opanga nthawi zambiri amafanizira migolo imodzi ndi mapasa kuti adziwe zoyenera kwambiri pazosowa zawo zopangira. Mapangidwe a screw single amapereka mawonekedwe osavuta, kupangitsa kuti ikhale yosavuta kugwiritsa ntchito ndi kukonza. Ogwira ntchito amatha kuphunzira mwamsanga ndondomekoyi, yomwe imachepetsa nthawi yophunzitsa komanso ndalama. Mosiyana ndi izi, mbiya ziwiri zomangira zimafunikira opareshoni aluso chifukwa cha zomangira zovuta za intermeshing.

Migolo yokhala ndi zomangira imodzi imapanga kuthamanga kokhazikika, komwe kumathandizira kuti zinthu zikhale zofananira. Amakhalanso ndi zotsika mtengo zoyambira komanso zokonza, zomwe zimawapangitsa kukhala abwino pazinthu wamba monga PE, PP, ndi ma pellets a PVC. Migolo iwiri yomata imapambana pakusakaniza ndi kuwongolera kutentha, makamaka kwa mapulasitiki ovuta kapena opangidwanso, koma amabwera ndi mtengo wokwera komanso zofunika kukonza.

Chidziwitso: Pazinthu zambiri zokhazikika, kapangidwe ka screw kamodzi kamapereka magwiridwe antchito odalirika komanso kupulumutsa mtengo.

Kugwiritsa Ntchito-Zopindulitsa Zapamwamba

Single Plastic Screw Barrel imadziwika kwambiri m'mapulogalamu omwe kuphweka komanso kusasinthasintha ndizofunikira kwambiri.Kutulutsa kwa bomba, kupanga mapepala, ndi kupanga mbiri nthawi zambiri amagwiritsa ntchito mapangidwe akekutulutsa kokhazikikandi kuwongolera kutentha kwasungunuka. Ogwira ntchito amapindula ndi kutentha kwachangu, komwe kumatsimikizira kusungunuka kwa yunifolomu ndikuchepetsa chiopsezo cha zolakwika.

• Gawo lazakudya limapereka kuyenda kosasunthika kwa zinthu.
• Gawo losungunuka limachotsa mpweya wotsekedwa ndikupanga chisakanizo chokhazikika.
• Gawo la metering limasunga kupanikizika kosalekeza ndi kutulutsa.

Izi zimathandizira zotsatira zamtundu wapamwamba muzinthu ngatimapaipi a PVC, mapepala a PET, ndi mbiri ya ABS. Mapangidwewo amalolanso kukonza kosavuta komanso kusintha kwa zinthu mwachangu, zomwe zimakulitsa zokolola. Opanga amasankha mbiya za screw imodzi kuti athe kuthana ndi ma polima osiyanasiyana, kuphatikiza mapulasitiki a engineering ndi bioplastics, popanda zovuta zama screw system.

Zokwezeka Zenizeni Zapadziko Lonse Kugwiritsa Ntchito Pulasitiki Single Screw Barrel

Jakisoni Womangirira Wosasinthasintha Nkhani Yophunzira

Wopanga mapulasitiki otsogola adakweza zakejekeseni akamaumba mzerendi ukadaulo wapamwamba wa screw ndi mbiya. Gululi lidayang'ana kwambiri kukhathamiritsa ma screw geometry ndikugwiritsa ntchito chitsulo cha nitrided mbiya. Zosinthazi zidasintha kusungunula homogeneity ndikukhazikika kutentha kusungunula. Othandizira adawona zolakwika zochepa, monga kusungunuka kosakwanira komanso kutsetsereka kwamitundu. Kukonzekera kwatsopanoku kunachepetsanso nthawi yopuma chifukwa mbiya yosamva kuvala imakhala nthawi yayitali pakati pa kukonza.

Zosintha zazikulu zikuphatikiza:

• Kusungunuka kwamadzimadzi, zomwe zinayambitsa miyeso yofanana ya mankhwala.
• Kuchotsa zolakwika zomwe wamba, kuphatikiza kusakanikirana kosagwirizana ndi kusagwirizana kwamitundu.
• Kusintha kwamitundu yofulumira komanso kusintha kwazinthu, zomwe zidakulitsa kusinthasintha kwa kupanga.

Ogwira ntchito adanenanso za kukwera kwa 20% pakupanga bwino komanso kutsika kowonekera kwa magawo okanidwa. Bungwe la British Plastics Federation likuwunikira kufunikira kwa kapangidwe ka screw ndi mbiya popereka yunifolomu yosungunuka ndikupewa kusakhazikika.

Kutsirizitsa Pamwamba Pamwamba mu Phunziro la Extrusion

M'malo opangira ma polypropylene extrusion, mainjiniya adasintha kutentha kwa migolo, kuthamanga kwa screw, ndikusungunula mamasukidwe ake kuti ulusi ukhale wabwino. Anagwiritsa ntchito zitsanzo za ziwerengero kuti adziŵe zoikamo zabwino kwambiri. Gululi limasunga kutentha kwa migolo pakati pa 160-180 ° C ndikuwongolera kuthamanga kwa screw poyesa. Zosinthazi zidakhazikika kusungunuka kwamadzi ndikuwongolera kuwongolera kwapakati pa filament.

Kukhathamiritsa kwa njira kumalepheretsa zolakwika monga ovality ndi mainchesi osagwirizana. Zotsatira zake zinali zosalala pamwamba ndi zinthu zapamwamba zotulutsa.

Opanga amapeza zinthu zapamwamba kwambiri komanso kudalirika ndi mapangidwe apamwamba a screw barrel.

• Zovala zosamva kuvala ndi geometry yokhathamiritsa zimachepetsa zolakwika ndi zinyalala, kutsitsa zinyalala popanga.
• Zida zotsogola ndi makina odzipangira okha amawonjezera kukhazikika komanso kuchita bwino, kuthandizira mwachangu, kutulutsa kosasintha m'mafakitale onse.

FAQ

Ubwino waukulu wa mbiya imodzi ya pulasitiki ndi chiyani?

Migolo ya pulasitiki imodzikupereka ulamuliro wolondola pa kusungunuka ndi kusakaniza. Izi zimabweretsa kukhazikika kwazinthu komanso zolakwika zochepa pakupanga pulasitiki.

Kodi mbiya imakhudza bwanji khalidwe lazinthu?

Zakuthupi za mbiyazotsatira kuvala kukana ndi kutengerapo kutentha. Zida zapamwamba kwambiri, monga zitsulo za nitrided, zimakulitsa moyo wa zida ndikusunga zinthu zokhazikika.

Kodi migolo ya pulasitiki imodzi imatha kugwira mitundu yosiyanasiyana ya mapulasitiki?

• Inde, migolo ya pulasitiki imodzi yokha imakonza ma polima osiyanasiyana.
• Amagwira ntchito ndi PE, PP, PVC, ABS, ndi mapulasitiki ambiri a engineering.