I-bumper yemoto yenye yezixhobo ezinkulu kwimoto, inemisebenzi emithathu ephambili: ukhuseleko, ukusebenza kunye nokuhlobisa.
Kukho iindlela ezintathu eziphambili zemoto bumper lightweight: imathiriyeli ekhaphukhaphu, uyilo lokulungiswa kolwakhiwo kunye nokuveliswa kwenkqubo entsha.I-Material lightweight ngokubanzi ibhekisela ekutshintsheni izinto zokuqala phantsi kweemeko ezithile, njengeplastiki yentsimbi;uyilo lolwakhiwo olukhaphukhaphu oluphezulu ikakhulu lunodonga olucekethekileyo lwetekhnoloji;inkqubo entsha yokuvelisa inemathiriyeli ye-foam encinci kunye negesi encedisayo yokubumba kunye nobunye ubugcisa obutsha.
Iplastiki yokukhetha izinto zeplastiki ngenxa yomgangatho wokukhanya, ukusebenza kakuhle, ukuveliswa okulula, ukuxhathisa ukubola, ukuchasana nempembelelo, inkululeko yoyilo kunye nezinye iimpawu, isetyenziswa ngokubanzi kushishino lweemoto, kunye nomlinganiselo wokunyuka ngakumbi kwizinto zemoto.Ubungakanani beplastiki esetyenziswa kwinqwelo-mafutha ibe yenye yeendlela zokulinganisa umgangatho wophuhliso lweshishini leemoto lelizwe.Okwangoku, amazwe aphuhlileyo ukuvelisa imoto yokusetyenziswa kweplastiki ifikelele kwi-200kg, ibalwa malunga ne-20% yomgangatho wesithuthi.
Iplastiki kwishishini leemoto laseTshayina lisebenza kade, inani leplastiki kwiimoto zoqoqosho lingama-50 ~ 60kg kuphela, iimoto eziphezulu zine-60 ~ 80kg, ezinye iimoto zinokufikelela kwi-100kg, eChina ekuveliseni iilori ezinobungakanani obuphakathi, imoto nganye emalunga ne-100kg. 50kg yeplastiki.Inqwelo-mafutha nganye isebenzisa iplastiki kwisi-5 ukuya kwi-10 ekhulwini lobunzima bemoto.
Izixhobo ze-bumper zihlala zineemfuno ezilandelayo: ukuchasana nempembelelo entle, ukumelana nemozulu elungileyo.Isakhono esihle sokuncamathela ipeyinti, ukumanzi kakuhle, ukusebenza kakuhle kokusetyenzwa, ixabiso eliphantsi.Ngokufanelekileyo, izixhobo zeklasi yePP ngokungathandabuzekiyo lukhetho olungcono olunendleko.Izinto zePP luhlobo lweplastiki ngokubanzi kunye nokusebenza kakuhle, kodwa iPP ngokwayo inokusebenza okuphantsi kobushushu obuphantsi kunye nokumelana nefuthe, ukunganxibi, ukuguga okulula kunye nozinzo olubi lobungakanani, ngoko ke iPP eguquliweyo idla ngokusetyenziswa njengesixhobo sokuvelisa imoto.Okwangoku, i-polypropylene automotive bumper izixhobo ezikhethekileyo zihlala ziyi-PP njengeyona nto iphambili, kwaye yongeza umlinganiselo othile werabha okanye i-elastomer, i-inorganic filler, amasuntswana oomama ombala, izongezo kunye nezinye izinto emva kokuxutywa kunye nokucutshungulwa.
Kulula ukubangela ukuguqulwa kwe-warping, okusisiphumo sokukhululwa koxinzelelo lwangaphakathi.Iibhampa ezinodonga olubhityileyo zibangela uxinzelelo lwangaphakathi kwizigaba ezahlukeneyo zokubumba inaliti.
Ngokubanzi, ikakhulu ibandakanya uxinzelelo lwe-orientation, uxinzelelo lwe-thermal kunye noxinzelelo lokukhululwa kwe-mold.Uxinzelelo lwe-Orientation ngumtsalane wangaphakathi obangelwa yi-fibers, i-macromolecular chains okanye i-chain segments kwi-melt ejoliswe kwicala elithile kwaye ibangelwa ukuphumla okunganeleyo.Uqhelaniso lunxulumene nobukhulu bemveliso, ubushushu obunyibilikayo, ubushushu bokungunda, uxinzelelo lwenaliti, kunye nexesha lokugcinwa koxinzelelo.Ukuphakama kobunzima, iyancipha i-orientation;ukuphakama kweqondo lobushushu lokunyibilika, isezantsi i-orientation, isezantsi i-orientation;Okukhona uxinzelelo lwenaliti luphezulu, kokukhona uqhelaniso luphezulu;ixesha logcino loxinzelelo lide, kokukhona uqhelaniso lukhulu.
Uxinzelelo lwe-thermal lubangelwa ubushushu obuphezulu beqondo lokushisa lokungunda kunye nobushushu obuphantsi bokubumba, kunye nesantya sokupholisa ngokukhawuleza sokunyibilika kwindawo ekufutshane nomgodi wokubumba.Uxinzelelo lokukhululwa lubangelwa ubukhulu becala ngenxa yamandla anganeleyo kunye nokuqina kwesikhunta, i-deformation elastic phantsi kwesenzo soxinzelelo lwe-injection kunye nokuphuma okuphezulu, kunye nokulungelelaniswa okungahambi kakuhle kwemveliso yemveliso ayilingani.Udonga olubhityileyo lunokuba nzima.Ngenxa yokuba i-gauge yobukhulu bodonga incinci kwaye ine-shrinkage encinci, imveliso ibambelele ngokuqinileyo kwi-mold;Uxinzelelo lokubamba ixesha lokulawula kunzima, kwaye ubuninzi bodonga oluncinci kunye nokuqiniswa konakala lula.Ukuvulwa okuqhelekileyo kwesikhunta kufuna ukuba i-syringe inike amandla okwaneleyo okuvula i-mold, ekufuneka ikwazi ukunqoba ukuchasana nokuvula isikhunta.
Kukho imiqobo emininzi ekufuneka yoyiswe kwinkqubo yokuvulwa komngundo
Okokuqala, kuyimfuneko ukunqoba amandla okuvula ngokuthe ngqo.Xa i-mold ivuliwe, iplastiki iya kuba namandla athile okunamathela ngokuhambelana nolwalathiso lokuvula, okubangelwa ukupholisa kwamalungu eplastiki xa ukupholisa ukubunjwa kunganelanga, kunye nokwandiswa kwe-elastic ye-cavity yohlobo alubuyiselwa ngokupheleleyo.Ubungakanani balo mkhosi wokuncamathela bunxulumene nobume beplastiki, umgangatho womphezulu wokubumba, ukuthambeka kwesikhunta, njl njl. Ukongeza, kuyimfuneko ukoyisa ukuchasana kokuvula umngundo ongangqalanga, oko kukuthi, icala lemoto. inkqubo yotsalo olungundoqo.Kwakhona kuyimfuneko ukunqoba ukuchasana kwe-friction okubangelwa ukuhamba kwe-mold move template kunye netemplate yomsebenzi.Emva koko kuyimfuneko ukunqoba uxinzelelo lokuthatha inxaxheba kwi-cavity, xa uxinzelelo lwe-cavity lungenakulinganiswa noxinzelelo lwe-atmospheric, kwaye uxinzelelo kwi-cavity alulingani noxinzelelo lwangaphandle.
Ukuze kulungiswe ezi ngxaki zimbini zingasentla, uyilo lokungunda kufuneka luphuculwe ngokufanelekileyo.Khetha izinto ezifanelekileyo zokubumba ukuphucula amandla e-thermal kunye nokunxiba.Uyilo lwesakhiwo sokubumba esinengqiqo kunye nokuveliswa, ukwandisa ngokufanelekileyo ubukhulu bepleyiti yokutyhala kunye nepleyiti ephakathi, ukuphucula ukuqina kokubumba, ukunciphisa ukuguqulwa kwe-elastic ye-mold.Ukuphucula ukuveliswa kunye nokuchaneka kokulungelelaniswa kwendlela engundoqo yokukhupha kunye nenkqubo yokunyakaza, ukunciphisa uburhabaxa bomphezulu bombhobho wohlobo, i-core kunye ne-module ye-convex, kunye nokunciphisa amandla okukhululwa kwe-mold.Ngoyilo oluphezulu kunye nokuchaneka okuhambelanayo okufunekayo, isixhobo sonxibelelaniso siqhele ukubonelelwa ukunqanda ukufuduswa okunxulumene nondoqo wokufa kunye nomngxuma wokufa.Inkqubo yokugalela kufuneka iyilwe ngokufanelekileyo, kwaye uyilo lomjelo wokuhamba kufuneka lusebenzise ngokugqithisileyo iinxalenye zeplastiki ukusuka kwiindawo ezityebileyo ukuya kwiindawo ezibhityileyo ngexesha lokutofa.Kuya kufuneka kwakhona kubekho izibuko zokukhupha ezaneleyo.Ngokwenkqubo yokutofa, uxinzelelo lwangaphakathi lwamalungu eplastiki kufuneka luncitshiswe, kwaye isantya sokutofa kunye nesantya sokupholisa kufuneka sincitshiswe.Ukonyusa iqondo lobushushu lokunyibilika kunye neqondo lobushushu lokungunda kuyafuneka ukuze kuthotywe.Uxinzelelo lwenaliti olufanelekileyo, ixesha lokugcinwa koxinzelelo, kunye nexesha lokupholisa nalo liyafuneka.I-Huangyan Leiao Molding Co., Ltd. ifumaneka kwisixeko sase-Huangyan sokubumba iSithili, eTaizhou, kwiphondo laseTaizhou, eli "Idolophu yasekhaya yaseTshayina".Inkampani ibandakanyeka ikakhulu kwimveliso yokubumba inaliti, ineminyaka emininzi yamava okungunda, ikakhulu imveliso kunye nokusetyenzwa kwe-ebryo mold yebhotile, i-PET commodity mold, i-bottle cap mold, ingaphakathi lemoto kunye nomphandle wokuhombisa wangaphandle… … Inkqubo yokubumba inoyilo lwayo olulodwa kunye neteknoloji yokucubungula, esekelwe kwingcamango "yolawulo lweMfezeko", kunye nabathengi basekhaya nabangaphandle ukuseka ubudlelwane obuhle bexesha elide lentsebenziswano, ndiyakholelwa ukuba uLeiao uya kufaneleka ukuzithemba kwintsebenziswano. ishishini.
Ixesha lokuposa: Nov-03-2022