Conical Twin Screw Extruder: Kufotokozera Kwamapangidwe

A conical twin screw extruderndi mtundu wa amapasa wononga extruder kuti ali ndi zomangira awiri anakonza mu mawonekedwe conical, tapering cha kumaliseche mapeto a extruder. Kapangidwe kameneka kamapereka kuchepa kwapang'onopang'ono kwa voliyumu ya screw channel, zomwe zimapangitsa kuti pakhale kupanikizika komanso kuwonjezereka. Conical twin screw extruder imapangidwa makamaka ndi mbiya mbiya, makina otumizira zida, chakudya chochulukira, utsi wa vacuum, kutentha, kuziziritsa ndi zida zowongolera zamagetsi.

Conical twin screw extruder ndiyoyenera kupanga zinthu za PVC kuchokera ku ufa wosakanizidwa. PVC ndi polima thermoplastic amene ali osiyanasiyana ntchito m'mafakitale osiyanasiyana, monga zomangamanga, ma CD, magetsi, magalimoto, ndi zachipatala. Komabe, PVC sichigwirizana ndi ma polima ena ambiri ndi zowonjezera, ndipo imafunikira njira zapadera zogwirira ntchito kuti mukwaniritse zomwe mukufuna ndikuchita. A conical twin screw extruder angapereke kusakaniza koyenera, kusungunuka, devolatilization, ndi homogenization ya PVC ndi zowonjezera zake mosalekeza komanso moyenera.

A conical twin screw extruder ndi zida zapadera za WPC ufa extrusion. WPC imayimira matabwa apulasitiki, chomwe ndi chinthu chomwe chimaphatikiza ulusi wamatabwa kapena ufa wamatabwa ndi ma polima a thermoplastic, monga PVC, PE, PP, kapena PLA. WPC ili ndi ubwino wa matabwa ndi pulasitiki, monga mphamvu zambiri, kulimba, kukana nyengo, ndi kubwezeretsedwanso. Chowonjezera chowonjezera cha mapasa chimatha kukonza ufa wa WPC wokhala ndi zotulutsa zambiri, kuthamanga kokhazikika, komanso moyo wautali wautumiki.

Ndi zipangizo zosiyanasiyana nkhungu ndi kunsi kwa mtsinje, conical amapasa wononga extruder akhoza kupanga zosiyanasiyana PVC ndi WPC mankhwala, monga mapaipi, kudenga, mbiri zenera, pepala, decking, ndi granules. Zogulitsazi zimakhala ndi mawonekedwe, kukula kwake, ndi ntchito zosiyanasiyana, ndipo zimatha kukwaniritsa zosowa zosiyanasiyana za makasitomala ndi misika.

Kufotokozera Njira

Njira ya conical twin screw extrusion imatha kugawidwa m'magawo anayi: kudyetsa, kusungunuka, devolatilization, ndi kupanga.

Kudyetsa

Gawo loyamba la conical twin screw extrusion ndikudyetsa. Munthawi imeneyi, zida, monga PVC kapena WPC ufa, ndi zina zowonjezera, monga zolimbitsa thupi, mafuta odzola, zodzaza, ma pigment, ndi zosintha, zimayikidwa ndi kudyetsedwa mu extruder ndi zida zosiyanasiyana zodyetsera, monga screw augers, vibratory. thireyi, malamba olemera, ndi mapampu a jakisoni. Mlingo wodyetsa ndi kulondola ndizofunikira zomwe zimakhudza ubwino ndi kusasinthasintha kwa zinthu zomaliza. Zopangira zimatha kusakanikirana ndikudyetsedwa, kapena padera komanso motsatizana motsatizana mu extruder, kutengera kapangidwe kake ndi zomwe zimafunidwa.

Kusungunuka

Gawo lachiwiri la conical twin screw extrusion ndikusungunuka. Munthawi imeneyi, zopangira zimaperekedwa, kukakamizidwa, ndikutenthedwa ndi zomangira zozungulira ndi zotenthetsera migolo, ndikusinthidwa kuchoka ku zolimba kupita kumadzi. Kusungunulaku kumaphatikizapo kulowetsa mphamvu zamafuta ndi makina, ndipo kumatengera liwiro la wononga, masinthidwe a screw, kutentha kwa migolo, ndi zinthu zakuthupi. Njira yosungunula ndiyonso yofunika kwambiri pakubalalitsa ndi kugawa zowonjezera mu matrix a polima, ndi kuyambitsa kwa mankhwala, monga kugwirizanitsa, kulumikiza, kapena kuwonongeka, komwe kungachitike mu kusungunuka. Njira yosungunulirayo iyenera kuyendetsedwa mosamala kuti zisatenthedwe, kumeta ubweya wambiri, kapena kusungunuka pang'onopang'ono kwa zinthu zomwe zingapangitse kuti zinthu zisamayende bwino.

Devolatilization

Gawo lachitatu la conical twin screw extrusion ndi devolatilization. Munthawi imeneyi, zinthu zomwe zimasokonekera, monga chinyezi, mpweya, ma monomers, zosungunulira, ndi zinthu zowola, zimachotsedwa pakusungunuka pogwiritsa ntchito vacuum pamadoko otuluka m'mphepete mwa mbiya ya extruder. Njira ya devolatilization ndiyofunikira pakuwongolera kukhazikika kwazinthu komanso kukhazikika, komanso kuchepetsa kukhudzidwa kwa chilengedwe komanso kuopsa kwa thanzi la njira ya extrusion. Njira ya devolatilization imatengera kapangidwe ka screw, vacuum level, viscosity yosungunuka, ndi mawonekedwe azinthu. Njira ya devolatilization iyenera kukonzedwa bwino kuti ikwaniritse kuchotsedwa kokwanira kwa zosokonekera popanda kuyambitsa thovu lochulukirapo, kusefukira kwamadzi, kapena kusungunuka kwamadzi.

Kuumba

Gawo lachinayi komanso lomaliza la conical twin screw extrusion ndikuumba. Munthawi imeneyi, kusungunuka kumatulutsidwa kudzera mukufa kapena nkhungu yomwe imatsimikizira mawonekedwe ndi kukula kwa chinthucho. Kufa kapena nkhungu imatha kupangidwa kuti ipange zinthu zosiyanasiyana, monga mapaipi, mbiri, pepala, filimu, kapena ma granules. Kapangidwe kake kamatengera kufa kwa geometry, kufa, kutentha kwa kufa, ndi kusungunula rheology. Njira yopangira mawonekedwe iyenera kusinthidwa kuti ikwaniritse zotulutsa zofananira komanso zosalala popanda zilema, monga kufa kwakufa, kusungunuka kwapang'onopang'ono, kapena kusakhazikika kwamtundu. Pambuyo popanga, zotulutsazo zimaziziritsidwa, kudula, ndi kusonkhanitsidwa ndi zida zapansi pamtsinje, monga ma calibrator, zonyamula, zodulira, ndi ma winders.

Mapeto

Conical twin screw extruder ndi chida chosunthika komanso chothandiza popanga zinthu za PVC ndi WPC kuchokera ku ufa wosakanizidwa. Itha kupereka ntchito zofunika pakudyetsa, kusungunula, devolatilization, ndi kupanga mosalekeza komanso molamulidwa. Itha kupanganso zinthu zosiyanasiyana zokhala ndi mawonekedwe osiyanasiyana, kukula kwake, ndi magwiridwe antchito, pogwiritsa ntchito nkhungu zosiyanasiyana komanso zida zakumunsi. Conical twin screw extruder ili ndi ubwino wophatikizana bwino, kutulutsa kwakukulu, kuthamanga kokhazikika, ndi moyo wautali wautumiki, ndipo imatha kukwaniritsa zosowa zosiyanasiyana za makasitomala ndi misika.

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