Kodi mungasankhe bwanji njira yoyenera yopangira granulation pamene zinthu zosiyanasiyana zasinthidwa?

Pamene ma resin oyera "asinthidwa", nthawi zambiri pamakhala kusintha kwa njira yoyenera kwambiri yopangira granulation.

Mwachitsanzo:

• Kudzaza, makamaka kudzaza kwambiri, nthawi zambiri kumapangitsa kuti LLDPE kapena LDPE pulasitiki isinthe kuchoka pa granulation ya mphete ya madzi kupita pa malo ozizira mpweya. Zonsezi zimawonjezera kuuma, komanso kusunga mphamvu (sungani mukamaliza kuumitsa); mawonekedwe a tirigu ndi okongola ndipo amachepetsa kutayika kwachilengedwe kwa ufa wa m'mphepete.

• Kuwonjezeka, chifukwa cha kukhalapo kwa ulusi wagalasi kapena ulusi wa kaboni, kotero kuti utomoni wina wozizira kwambiri (polyethylene wokhuthala kwambiri, ABS, ndi zina zotero) umabwerera ku kudula kozizira kwachikhalidwe (madzi). "Zonse" ndi "mainjiniya" (mapulasitiki) sizisiyana.

• Yolimba, monga zinthu za TPV bumper zomwe zimagwiritsidwa ntchito kwambiri (PP+EPDM+POE dynamic vulcanization), chifukwa cha kufalikira kwa ufa wa rabara mu gawo lopitilira la PP, zomwe zimapangitsa kutentha kwa mphete yamadzi kukhala kokondedwa. Ndi yowoneka bwino komanso yamtengo wapatali.

○ Kutulutsa kwamphamvu

(1) Zipangizo zamakina zolumikizidwa ndi mankhwala (XL-PE) ndiye chisankho chabwino kwambiri cha pamwamba pa nthaka yozizira ndi mpweya. M'mafakitale ambiri azinthu zamakina,mapasa screw/makina opangidwa ndi sikelo imodzi yokhala ndi masitepe awiri + mpweya wozizira wotentha (kapena wotentha kwambiri) ndi makina opangidwa ndi SPVC ndi XLPE omwe amagwirizana ndi kupanga.

(2) Pakupanga ndi kupanga polypropylene yolimba kwambiri (HMS-PP), PP reaction extrusion branched imatha kulandira bwino tinthu tating'onoting'ono totentha ta mphete yamadzi.

Zipangizo zodziwika bwino zosinthidwa kapena kusankha chitsanzo cha master batch cutting

• Zipangizo zotetezera chingwe cha SPVC kapena zipangizo zowonekera bwino zachipatala, makamaka malo onse ozizira ndi otentha. RPVC ndi yofanana, koma pang'ono.

• Polystyrene, kaya ndi ya HIPS kapena GPPS, lamba wodula (wozizira madzi) ndiye amene amadula kwambiri.

• Zipangizo zomwe zimagwiritsidwa ntchito kwambiri ndi ABS, ambiri amasankha kukoka (madzi) kudula kozizira (mawonekedwe owonda komanso aatali a tirigu ndi otchuka kwambiri). Anthu ayesa kuzizira kozizira kapena kuzizira kwa mphete yamadzi popanda vuto, mawonekedwe a tirigu nawonso ndi okongola (ozungulira). Pamene mphamvu yopangira ili yoposa 3-4t/h, ndi zomveka kusintha kukhala makina oponyera otentha pansi pa madzi kapena makina oponyera lamba.

• Zipangizo za chingwe zotetezedwa kapena zotetezedwa pang'ono, kusankha pang'ono kwa mphete yamadzi, kusankha kwakukulu kwa pansi pa madzi (ofunitsitsa).

• Chingwe cholumikizidwa ndi silane, chingwe chaching'ono chosankha mphete yamadzi, chachikulu (monga mzere wa 96/250) chosankha pansi pa madzi (chotentha).

• Kupanga ndi kuyika kwa HFFR (chinthu chopanda utsi wambiri cha halogen) ndi granulation, zimagwirizana ndi zida za XLPE, koma kasinthidwe ka screw ya extruder kamasintha.

• Copolymer formaldehyde (POM) kumapeto, akhoza kusankha mphete yamadzi kapena pansi pa madzi (kudula).

• TPU (thermoplastic polyurethane elastomer), zambiri zotentha pansi pa madzi, koma mbali yomweyo ya gawo loyezera extrusion iyenera kusinthidwa kuti igwirizane ndi mphamvu yomanga.

Gulu la PET filament master, likhoza kudulidwa mozizira ndi kukoka (madzi) kapena kuponyedwa ndi kudula kozizira.

• PPC yotchuka yochepetsa mpweya woipa (polypropyl carbonate), ikhoza kusakanizidwa ndi pafupifupi mtundu uliwonse wa utomoni wowonongeka (TPS, PLA, PBAT, PBS, PHBV, PHA, PVA, PCL, PGA) ndi granulation.

• Ulusi wautali wagalasi (LFI-PP, LFI-PA) wolowetsedwa.
• Zipangizo zomwe zimagwiritsidwa ntchito kwambiri popanga filimu yopumira ya PE - kusakaniza ndi kuyika granulation;

• Mapulasitiki opangidwa ndi cellulose acetate osakaniza ester - kuphatikiza granulation;

• TPEE (buluku la copolymer ester) – granulation yosakaniza;

• K resin – kupangika kwa zinthu zopangidwa ndi kusinthidwa;

• SBS, SIS, SEBS block elastomer granulation kapena devolatilization granulation;

• Kuyika kwa POE, EPDM yoyika ndi chinthu china chogwirizira chogwirizira - kuphatikiza granulation;

• Zipangizo zobowolera zinthu zopangidwa ndi polyethylene (UHMW-PE) yolemera kwambiri, monga kusakaniza granulation;

• Sera ya polyethylene (PEW) — kupanga, kuyika granulation ndi kuyika granulation pang'ono;

• Utomoni wa mafuta (C5 kapena C9) — zosakaniza ndi granulation yapadera;

• Kutulutsa ndi kudula waya wosakaniza ndi nayiloni (PA6+PA12+SiC).