M'ndandanda wazopezekamo
● Zinthu Zotulutsa Zinthu Mwachizolowezi
● Zitsanzo za Die
● Kutulutsa Mapepala
● Kutulutsa Mpweya
● Kuphimba Kutulutsa
● Gulu la Otulutsa Zinthu
● Njira Yotulutsira Mapulasitiki
● Ubwino wa Kutulutsa Pulasitiki
● Mtengo Wotsika
● Liwiro Lalikulu
● Chitsime Chochokera:

Kutulutsa zinthu kungakhale njira yopangira zinthu zomwe vinyl imasungunuka kenako n’kupanga mawonekedwe. Kutulutsa zinthu kumapereka zinthu monga kuchotsa zinthu m’nyengo, kuyika machubu, mpanda, madenga a denga, zithunzi za mafelemu a zenera ndi zokutira za sheeting, ndi zinthu zotetezera mawaya.

Njira yotsatirayi imayamba pomwa zinthu zapulasitiki (nyemba, tinthu tating'onoting'ono, ufa kapena zopopera) kuchokera mu hopper kupita ku chosungira cha extruder. Nsalu iyi yafinyidwa m'madzi kudzera mu magetsi potembenuza zomangira.
Zinthu Zotulutsa Zachizolowezi

Zimakhala ndi PVC, PP, PC, PE ndi ABS (acrylonitrile butadiene styrene) koma sizimangokhala zokha.
Zitsanzo za Die

Nthawi zonse pamakhala ma dies angapo. Ma dies onse amalola m'malo mongokonza zinthu mosalekeza monga kupanga jekeseni pomwe pakhoza kukhala kusiyana pakati pa kukhwima ndi mitundu.
Mapepala Extrusion

Kutulutsa mapepala kumagwiritsa ntchito mapepala apulasitiki kapena mafilimu omwe ndi okhuthala kwambiri moti sangaphulike. Kuphatikiza apo, pali mitundu iwiri ya ma die: T-shape ndi coat hanger. Chitsogozo ndi cholinga cha ma die nthawi zonse ndikusintha kayendedwe ka pulasitiki kuchokera ku chinthu chimodzi chozungulira chomwe chimatuluka ndi chotulutsa chanu kupita ku kayendedwe ka planar.

Kawirikawiri co-extrusion ingagwiritsidwe ntchito kugwiritsa ntchito zigawo zingapo pamwamba pa nsalu yoyambira kuti ipange zinthu zina monga kuyamwa kwa UV, kukana kulowa kwa mpweya, kapena kuwonekera kwa mphamvu.

pc dzenje pepala extrusion mzere

Njira yachizolowezi yogwiritsira ntchito mapepala a vinyl pambuyo potulutsa zinthu ndi thermoforming. Ndipotu, pepalalo limakhala lotentha mpaka litafewa (vinyl), komanso limapangidwa pogwiritsa ntchito bowa kuti likhale latsopano. Ndiko kuti vacuum. Vacuum ikagwiritsidwa ntchito, kuyang'ana kwake ndikofunikira kwambiri ndipo kumakhudza kwambiri kupanga nthawi yozungulira chifukwa cha zitsulo zambiri.
Kutulutsa Mphepo

Kupanga nembanemba ya vinyl kuti mupeze zinthu monga mapepala ndi katundu wogulira. Zimathandiza kugwiritsa ntchito chingwe cha nembanemba chophwanyika.

Makina Opangira Ma Blow Molding a 50/100/160 Awiri

Chitoliro chisanatuluke, nthawi yomaliza yoperekera chubu ikuziziritsa kusungunuka. M'mimba mwake mwakula chifukwa cha mphamvu ya mlengalenga, ndipo chubucho chakokedwa ndi ma pliers, zomwe zimapangitsa kuti pulasitiki isakokeredwe ndi retina. Chithunzicho chimasiyanitsanso maunyolo a polima, komanso kupopera kumapangitsa kuti nembanembayo ikhale yopyapyala poyerekeza ndi chubu chogunda. Ngati filimuyo yakokedwa kwambiri kuposa momwe imatulutsidwira (kuti m'mimba mwake womaliza wa chubucho uli pafupi ndi m'mimba mwake wapakati) mamolekyu a aluminiyamu adzalumikizidwa bwino pogwiritsa ntchito njira yonse yokokedwa, kupanga filimu yolimba mwanjira iyi, ngakhale yofooka kuchokera panjira yoyenera. Nembanemba yomwe ili ndi m'mimba mwake waukulu poyerekeza ndi m'mimba mwake wapakati idzakhala ndi mphamvu kuchokera ku njira yoyenera, koma osati kuchokera ku njira yokokedwa.

Amakopeka kuisoka mu chubu chosalala, chomwe chingadulidwe kapena kuponyedwa ku zidutswa ziwiri za plywood, pomwe nembanembayo imapitiriza kuzizira.
Kuphimba Kutulutsa

Chophimba cha extrusion pakadali pano chili ndi njira yochepetsera kapena yopangira filimu. Njira ziwirizi cholinga chake ndi kupaka chophimba china pa pepala lowonekera kapena filimu. Mwachitsanzo, njirayi ingagwiritse ntchito kupaka. Chifukwa chake imapangitsa kuti isagwere madzi kuti iwonjezere mawonekedwe a pepala. Chophimbacho chingagwiritsidwe ntchito kukopa zinthu ziwiri.
Gulu la Otulutsa Zinthu

Pali mitundu iwiri yokha ya ma screw extruders. Kayendetsedwe ka screw iliyonse poyerekeza ndi ina kakuyimira dzina ili. Ma screw onsewa amapotoka mozungulira kapena mozungulira. Zatsimikiziridwa kuti, pa malo enaake opingasa ndi mulingo wolumikizana, liwiro la axial ndi mulingo wosakanikirana ndi wokulirapo mu ma extruders awiri ozungulira. Kuwonjezeka kwa kuthamanga kumakhala kwakukulu mu ma extruders. Kapangidwe ka kupotoza kali mu kusakaniza ndi kutumiza zinthu. Izi ndi zokonzera kuti zilole kusinthidwa kwa modular kuti zisinthidwe kapena kusintha njira ya ziwalo chifukwa cha kuwonongeka kapena kuwonongeka kosasinthika.

Twin Screw Dyer-free Vented PET Sheet Extrusion Line

Njira Yotulutsira Pulasitiki

Kuchokera ku kutuluka kwa pulasitiki, zinthu zopangidwa ndi mankhwala osasunthika nthawi zambiri zimakhala ngati ma nurdles, nthawi zambiri amatchedwa resin, yomwe imatha kuponyedwa ndi hopper yokwezedwa pamwamba kupita ku thanki ya extruder. Nsaluyo imadutsa kudzera mu chakudya (malo otseguka pafupi ndi kumbuyo kwa mbiya) ndipo imalumikizidwa mwachindunji ndi ulusi wopota. Kutupa ndi dzimbiri zimapangitsa kutentha kwambiri. Pa gawo lotsogola la cone, vinyl yophimbidwa imayenda kuti ichotse kuipitsidwa kulikonse ndikusiya kupindika. imalowa mu extrusion ikatha mu mbale yopumira. Chinthucho chiyenera kuziziritsidwa pokoka extrudate ndikuyiyika.
Ubwino wa Plastic Extrusion
mtengo wotsika

Mosiyana ndi njira zina zopangira umba, kupanga umba kungakhale kodalirika kwambiri ndipo kumabwera ndi mtengo wake. Ngakhale njira zopangira umba zimagwiritsa ntchito thermoplastics ndipo zimakumana ndi kusungunuka ndi kuyabwa. Ndalama zotayira ndi zopangira zonse ndi zotsika. Zipangizo zopangira umba zimagwira ntchito ndipo izi zimachepetsa kuthekera kwa kusowa kwa zinthu.
Kuthamanga Kwakukulu

Njira yotulutsira zinthu ndi yothandiza komanso yachangu popanga mizere yotalika. Ntchito ndi zinthu zitha kupangidwa mochuluka kwambiri, ndipo palibe kuwononga ndalama zambiri.
Kuchokera:

https://en.wikipedia.org/wiki/Plastics_extrusion#Sheet/film_extrusion/

https://rayda.co.uk/blog/advantages-of-plastic-extrusion/

https://kellerplastics.com/plastic-extrusions/benefits-of-extrusion/