Iingqwalasela zoyilo lwebhampa yemoto

I-bumper yemoto sesinye sezincedisi ezinkulu emotweni.Inemisebenzi emithathu ephambili: ukhuseleko, ukusebenza kunye nokuhlobisa.

Kukho iindlela ezintathu eziphambili zokunciphisa ubunzima beebumpers zeemoto: izinto ezikhaphukhaphu, ukulungiswa kwesakhiwo, kunye nokuveliswa kwenkqubo yokuvelisa.Ubunzima bokukhanya bezinto eziphathekayo ngokuqhelekileyo kubhekisela ekutshintsheni izinto zokuqala kunye nezinto ezinoxinano oluphantsi phantsi kweemeko ezithile, njengentsimbi eyenziwe ngeplastiki;uyilo lolungiselelo lolwakhiwo lwebhampa ekhaphukhaphu ikakhulu inodonga olubhityileyo;inkqubo entsha yokuvelisa ine-micro-foaming.Itekhnoloji entsha efana nemathiriyeli kunye nokubumba okuncediswa yigesi.

Iiplastiki zisetyenziswa kakhulu kumzi-mveliso weemoto ngenxa yobunzima bazo, ukusebenza kakuhle, ukwenziwa lula, ukuxhathisa kokubola, ukuchasana nempembelelo, kunye nenqanaba elikhulu lenkululeko kuyilo, kwaye ziya zisetyenziswa ngakumbi kwizixhobo zemoto.Ubungakanani beplastiki esetyenziswa kwinqwelo-mafutha ibe yenye yeendlela zokulinganisa inqanaba lophuhliso lweshishini leemoto lelizwe.Okwangoku, iplastiki esetyenziselwa ukuveliswa kwemoto kumazwe aphuhlileyo ifikelele kwi-200kg, ibalwa malunga ne-20% yomgangatho wezithuthi zizonke.
Iiplastiki zisetyenziswa kwishishini leemoto laseTshayina emva kwexesha.Kwiimoto zezoqoqosho, inani leeplastiki liyi-50 ~ 60kg kuphela, kwiimoto eziphakathi kunye neziphezulu, i-60 ~ 80kg, kwaye ezinye iimoto zinokufikelela kwi-100kg.Xa kuveliswa iilori eziphakathi eTshayina, imoto nganye Sebenzisa malunga ne-50kg yeplastiki.Ukusetyenziswa kweplastiki yemoto nganye yi-5% ukuya kwi-10% kuphela yobunzima bemoto.
Izinto eziphathekayo ze-bumper zihlala zineemfuno ezilandelayo: ukuchasana kwempembelelo efanelekileyo kunye nokuchasana kwemozulu elungileyo.Ukunamathela kakuhle kwepeyinti, ulwelo oluhle, ukusebenza kakuhle kokusebenza kunye nexabiso eliphantsi.
Ngokufanelekileyo, izixhobo zePP ngokungathandabuzekiyo lolona khetho lunendleko.Imathiriyeli yePP yiplastiki yenjongo jikelele esebenza ngokugqwesileyo, kodwa iPP ngokwayo inomgangatho ophantsi wobushushu obuphantsi kunye nokumelana neempembelelo, ayixhathisi, kulula ukuguga kwaye inozinzo olulambathayo.Ke ngoko, iPP elungisiweyo ihlala isetyenziselwa ukuveliswa kwebumper yemoto.impahla.Okwangoku, izixhobo ezikhethekileyo ze-polypropylene bumpers zemoto zihlala zenziwe ngePP, kwaye inxalenye ethile yerabha okanye i-elastomer, i-inorganic filler, i-masterbatch, izinto ezincedisayo kunye nezinye izinto zixutywe kwaye zicutshungulwe.
Iingxaki ezibangelwa ludonga olucekethekileyo lwebhampa kunye nezisombululo

Ukunciphisa i-bumper kulula ukubangela i-warping deformation, kwaye i-deformation ye-warping iyisiphumo sokukhululwa koxinzelelo lwangaphakathi.Iibhampa ezinodonga olubhityileyo zivelisa uxinzelelo lwangaphakathi ngenxa yezizathu ezahlukeneyo ngamaxesha ahlukeneyo okubumba inaliti.
Ngokubanzi, ikakhulu ibandakanya uxinzelelo lokuqhelaniswa, uxinzelelo lwe-thermal, kunye noxinzelelo lokukhululwa kwesikhunta.Uxinzelelo lwe-orientation ngumtsalane wangaphakathi obangelwa yi-fibers, i-macromolecular chains okanye amacandelo kwi-melt ejoliswe kwicala elithile kunye nokuphumla okwaneleyo.Umgangatho wokuqhelaniswa nobukhulu bemveliso, iqondo lobushushu lokunyibilika, iqondo lobushushu lokungunda, uxinzelelo lwenaliti, kunye nexesha lokuhlala.Okukhona ubukhulu becala, kokukhona usezantsi iqondo lokuqhelaniswa;iqondo lobushushu lokunyibilika liphezulu, kokukhona lisezantsi iqondo lokuqhelaniswa;iqondo lobushushu lokungunda liphezulu, kokukhona lisezantsi iqondo lokuqhelaniswa;Ukuphakama koxinzelelo lwenaliti, kokukhona inqanaba lokuqhelaniswa liphezulu;Ukuba lide ixesha lokuhlala, kokukhona iqondo lokuqhelaniswa likhulu .
Uxinzelelo lwe-thermal lubangelwa ubushushu obuphezulu bokunyibilika kunye nobushushu obuphantsi bokubumba ukwenza umehluko omkhulu wokushisa.Ukupholisa ukunyibilika kufuphi nomgodlo wesikhunta kukhawuleza kwaye uxinzelelo lwangaphakathi lomatshini lusasazwa ngokungalingani.
Uxinzelelo lwe-demoulding ikakhulu lubangelwa ukungabikho kwamandla kunye nokuqina kwesikhunta, ukuguqulwa kwe-elastic phantsi kwesenzo soxinzelelo lwe-injection kunye ne-ejection force, kunye nokusabalalisa ngokungalingani kwamandla xa imveliso ikhutshwe.
Ukuncipha kwebhampa kukwanengxaki yobunzima bokuyidiliza.Ngenxa yokuba i-gauge yobukhulu bodonga incinci kwaye inomlinganiselo omncinci wokunciphisa, imveliso ibambelela ngokuqinileyo kwi-mold;ngenxa yokuba isantya sokutofa siphezulu, ixesha lokuhlala liyagcinwa.Ukulawula kunzima;ubukhulu bodonga olucekethekileyo kunye neembambo nazo zisengozini yokonakala ngexesha lokudilizwa.Ukuvulwa okuqhelekileyo kokubumba kufuna ukuba umatshini wokutofa unike amandla okwaneleyo okuvula i-mold, kwaye amandla okuvula i-mold kufuneka akwazi ukunqoba ukuchasana xa uvula isikhunta.