Iimfuno ezintandathu eziphambili zokuthengwa kweplastiki yokubumba ayinakungahoywa

1. Ukumelana nokugqwesa okuphezulu Iiresin ezininzi kunye nezongezo zinefuthe elibi kumphezulu womgodi.Lo mhlwa ubangela ukuba intsimbi engaphezulu komngxuma ibe ngumhlwa ize ixotyulwe, imeko yomphezulu ibe mbi, kwaye nomgangatho wamalungu eplastiki wonakala.Ngoko ke, kusetyenziswa intsimbi enganyangekiyo kwi-corrosion, okanye umphezulu we-cavity ufakwe nge-chromium okanye i-cymbal nickel.

2.Ukuxhathisa okulungileyo kwe-abrasion.Iglosi kunye nokuchaneka komphezulu wezinto zeplastiki zeplastiki zihambelana ngokuthe ngqo nokuxhatshazwa kwe-abrasion kumphezulu we-plastic mold cavity, ngakumbi xa i-fiber yeglasi, ii-inorganic fillers kunye neepigments ezithile zongezwa kwezinye iiplastiki.Kanye kunye neplastiki enyibilikayo, ibaleka ngesantya esiphezulu kwimbaleki kunye ne-mold cavity, kwaye ine-friction enkulu kumphezulu womgodi.Ukuba izinto eziphathekayo azikwazi ukugqoka, ziya kuguga ngokukhawuleza, okuya konakalisa umgangatho wenxalenye yeplastiki.

3.Good dimensional uzinzo.Ngexesha lokubumba iplastiki, iqondo lobushushu bomngxunya weplastiki kufuneka lifikelele kuma-300°C.Ngenxa yesi sizathu, kungcono ukhethe insimbi yensimbi (intsimbi efakwe ngobushushu) eye yavutha ngokufanelekileyo.Ngaphandle koko, i-microstructure yezinto eziphathekayo iya kutshintsha, okuya kubangela ukuba ubungakanani be-mold yeplastiki butshintshe.

I-4.I-Easy-to-process mold parts ininzi yenziwe ngezinto zetsimbi, kwaye ezinye iimilo zesakhiwo zisanzima kakhulu.Ukuze unciphise umjikelezo wemveliso kunye nokuphucula ukusebenza kakuhle, izinto zokubumba zifunwa ukuba zibe lula ukuqhutyelwa kwimilo kunye nokuchaneka okufunekayo kwimizobo.

5.Ukusebenza kakuhle kokupholisha.Iinxalenye zeplastiki zeplastiki zidla ngokufuna isicwebezelisi esilungileyo kunye nemeko yomphezulu.Ke ngoko, uburhabaxa bomphezulu wecango kufuneka bube buncinci kakhulu.Ngale ndlela, umphezulu we-cavity kufuneka ucutshungulwe phezulu, njengokupholisa, ukugaya, njl. Ngoko ke, intsimbi ekhethiweyo ayifanele iqulethe ukungcola okungcolileyo kunye nama-pores.

I-6.I-Less echaphazelekayo ngonyango lokushisa Ukuze kuphuculwe ubunzima kunye nokuxhatshazwa kokugqoka, i-mold yeplastiki iphathwa ngokushushu, kodwa olu nyango kufuneka lenze ubungakanani butshintshe buncinci.Ngoko ke, intsimbi esele iqiniswe ngaphambili inokunqunyulwa isetyenziswa.