Yakawedzerwa polypropylene (EPP kwenguva pfupi) ndeye Ultra-mwenje, yakavharwa-sero thermoplastic foam particle yakavakirwa papolypropylene foam.Idema, pink kana chena, uye dhayamita kazhinji iri pakati pe φ2 ne7mm.EPP mabheji anoumbwa nezvikamu zviviri, yakasimba uye gasi.Kazhinji, chikamu chakasimba chinongotora 2% kusvika 10% yehuremu hwakazara, uye imwe yese igesi.Izvo zvishoma density range ndeye 20-200 kg / m3.Kunyanya, huremu hweEPP hwakareruka kupfuura hwepolyurethane furo pasi pesimba rimwechete rinotora simba.Naizvozvo, mativi efuro akagadzirwa neEPP mabedhi akareruka muhuremu, ane yakanaka yekupisa kupisa, yakanaka cushioning zvivakwa uye yakanakisa mechaniki zvivakwa, uye 100% inoparara uye inogona kushandiswazve.Ese mabhenefiti aya anoita kuti EPP ive imwe yeanonyanya kushandiswa zvinhu muminda yakawanda, mune ese ehupenyu hwedu:
Mundima yemotokari, EPP ndiyo yakanakisa mhinduro yekuwana zvinhu zvisingaremi, senge mabumpers, mota dzeA-pillar trims, mota padivi kuvhunduka cores, mota dzegonhi rekuvhundutsa cores, zvigaro zvekuchengetedza motokari, mabhokisi emidziyo, mikwende, Armrests, foamed polypropylene zvinhu. inogona kushandiswa sezvikamu zvakaita semahwendefa epasi, mavhairasi ezuva, mapaneru emidziyo, nezvimwewo Statistics: Parizvino, avhareji yehuwandu hwepurasitiki inoshandiswa mumotokari i100-130kg/motokari, iyo huwandu hwekushandisa hwefoamed polypropylene i4-6kg. / motokari, iyo inogona kuderedza huremu hwemotokari kusvika ku10%.
Mumunda wekurongedza, kurongedza zvakare uye midziyo yekufambisa yakagadzirwa neEPP ine hunhu hwekuchengetedza kupisa, kupisa kupisa, kusaita ngura, insulation, hupenyu hurefu hwesevhisi, nezvimwewo, haina kuvhurika organic komisheni, uye haina chinhu chimwe chete icho zvinokuvadza kune ozone layer kana heavy metals Material packaging, digestible mushure mekupisa, 100% zvakatipoteredza.Kungave kuri kwechokwadi zvinhu zvemagetsi, kana kutakurwa kwechikafu semichero, nyama yakaomeswa nechando, aizikirimu, nezvimwewo, yakawedzerwa furo re polypropylene rinogona kushandiswa.Zvinoenderana neiyo BASF yekumanikidza level bvunzo, EPP inogona kugara ichiwana anopfuura zana ekutenderera kutenderera, ayo anochengetedza zvakanyanya zvinhu uye kuderedza mutengo wekurongedza.
Pamusoro pezvo, EPP ine yakanakisa kuvhunduka uye kuita kwesimba kunyudzwa, uye zvakare inoshandiswa zvakanyanya mukugadzira zvigaro zvekuchengetedza vana, kutsiva echinyakare epurasitiki yakaoma uye polystyrene zvikamu, uye yakatove iyo inofarirwa zvinhu zvemazuva ese zvine hushamwari zvemhuri zvinodiwa.
Chigaro chevana chakagadzirwa naKarwala mukubatana neKNOF Industries.Ichi ndicho chigaro chekuchengetedza vana chakareruka pamusika, chinotakura vana vari muchikamu che0-13kg uye chinorema 2.5kg chete, inodzikira ne40% pane chigadzirwa chiripo pamusika.
Pasinei nemhando dzakasiyana-siyana dzekushandisa, isu hatiwanzozviona.Sei zvakadaro?Nekuti munguva yakapfuura, pamusoro peakawanda EPP foam zvikamu uchishandisa mold uye yakananga particle molding tekinoroji yakanga isinganakidze uye yaiwanzovanzwa kuseri kwezvinhu zvakaita sesimbi, simbi, chipanje, furo, machira uye dehwe.Kwemakore mazhinji, kuyedza kwakaitwa kuvandudza kunaka kwepamusoro-yakagadzirwa-yakagadzirwa foam particle zvikamu nekuwedzera manyorerwo mukati memidziyo yekuumba.Sezvineiwo, izvi zvinowanzoguma nemitengo yepamusoro yezvirasa.Jekiseni molding inoonekwa kwenguva pfupi senzira inonzwisisika, asi zvigadzirwa zvayo hazvina kunaka maererano nehuremu huremu, kunyura kwesimba uye kuvhara.
Kuti ugadzirise pamusoro pechikamu chefoam zvikamu zviri nani, unogona zvakare kusarudza kushandisa laser yekugadzirisa tekinoroji mushure mekunge zvikamu zvagadzirwa, kana kuita lamination kurapwa kuti uwane akasiyana masitayipi emavara.Asi post-processing zvakare inoreva kuwedzera kushandiswa kwesimba, izvo zvinokanganisawo kudzokororwa kweEPP.
Muchirevo chechinyorwa chino, T.Michel GmbH, pamwe chete nevakawanda vepamusoro zvinhu uye vagadziri vemidziyo muindasitiri iyi, vakatanga tekinoroji ye "In-Mold Foamed Particle Coating" (IMPFC), iyo iri kupfapfaidza panguva imwe chete yekuumba.Iyi nzira inoshandisa kurtz Ersa's THERMO SELECT maitiro, ayo anogadzirisa ega tembiricha nzvimbo dze mold, zvichikonzera chikamu chepamusoro chepamusoro chine kuderera kwakanyanya.Izvi zvinoreva kuti iyo inogadzirwa moldings inogona kuwedzeredzwa nekukurumidza.Izvi zvinogonesawo kumwaya panguva imwe chete.Iyo yakapfapfaidzwa yakapfekwa inosarudza polima ine chimiro chakafanana senge furo zvidimbu, semuenzaniso, EPP inoenderana neyakapfapfaidza PP.Nekuda kweiyo inoumbwa yeimwe-layer chimiro, iyo inogadzirwa furo zvikamu zvinogoneka 100% kushandiswazve.
Pfuti yeindasitiri-giredhi yekupfapfaidza kubva kuNordson iyo inoparadzira pendi kuita yunifomu uye madonhwe akatsetseka kuti anyatso uye kushanda zvakanaka kune mukati memold.Ukuru hwepamusoro hwekuputira hunogona kusvika 1.4 mm.Kushandiswa kwekuputira kunogonesa kusarudzwa kwemahara kwemuvara uye kuumbwa kwezvikamu zvakaumbwa, uye kunopa nzvimbo huru yekuwedzera kana kuchinja kwekushanda kwepamusoro.Semuenzaniso, iyo PP coating inogona kushandiswa EPP furo.Inounza zvakanaka UV resistance.
Coating ukobvu kusvika 1.4 mm.Kuenzaniswa nekuumbwa kwejekiseni, IMPFC tekinoroji inogadzira zvikamu zvakaumbwa zvinodarika makumi matanhatu muzana zvakareruka.Kuburikidza nenzira iyi, maumbirwo akagadzirwa nefoam masisitimu anosanganisira EPP achave netarisiro yakakura.
Semuyenzaniso, EPP foam zvigadzirwa hazvichazovigwa kuseri kwezvimwe zvinhu kana kuputirwa mune zvimwe zvinhu mune ramangwana, asi zvicharatidza yavo yerunako pachena.Uye, nekukura kuri kuda kwemotokari dzemagetsi mumakore achangopfuura uye maitiro akanaka evatengi vanochinja kubva kumotokari dzechinyakare kuenda kumotokari dzemagetsi (maererano neInternational Energy Agency, kutengeswa kwemotokari dzemagetsi pasi rose kunotarisirwa kusvika mamirioni zana nemakumi maviri neshanu muna 2030. Pakazosvika gore ra2030; China inotarisirwa kunosvika makumi manomwe muzana ekutengesa kwemotokari ichave maEVs), izvo zvinogadzira mikana yakakura yemusika weEPP.Mota dzichava musika mukuru wekushandisa weEPP.Pamusoro pekuona shanduko uye kukwidziridzwa kweapo emota zvikamu uye magungano azvo, EPP ichashandiswawo kune zvimwe zvichangobva kugadzirwa zvinhu, zvinosanganisira asi zvisingagumire ku:
Mune ramangwana, EPP icharamba ichiita basa rakakosha mukurerutsa zvinhu, kupisa kupisa, kunyudzwa kwesimba, nezvimwewo nekuda kwehupamhi hwayo hwezvinhu zvakanaka izvo zvisingakwanisi kusangana nechero imwe mubatanidzwa wezvinhu: mutengo wakaderera, wakanakisa mechanical properties, yakanaka formability, kwezvakatipoteredza ushamwari, etc. mugumisiro.
Nguva yekutumira: Aug-05-2022