Isitofu sokubumbaIsango
Lijelo elidibanisa imbaleki ephambili (okanye imbaleki yesebe) kunye nomgodi. Ummandla wecandelo lomnqamlezo ungalingana nomjelo ophambili (okanye umjelo wesebe), kodwa uhlala uncitshisiwe. Ke yeyona ndawo incinci inqamlezileyo kuyo yonke inkqubo yembaleki. Ubume kunye nobukhulu besango banempembelelo enkulu kumgangatho wemveliso.
Indima yesango yile:
A. Lawula isantya sokuhamba kwezinto:
B. Inokuthintela umva ngenxa yokuqina kwangaphambili kwenyibilika egcinwe kule nxalenye ngexesha lokutofa:
C. Ukunyibilika okudlulayo kuxhomekeke kwi-shear enamandla ukunyusa ubushushu, ngaloo ndlela kuncitshiswe i-viscosity ebonakalayo kunye nokuphucula umbane:
D. Kukulungele ukwahlula imveliso kunye nenkqubo yokubaleka. Uyilo lokuma kwesango, ubukhulu kunye nesikhundla kuxhomekeke kubume beplastiki, ubungakanani kunye nesakhiwo semveliso.
Imilo yeSango enqamlezileyo:
Ngokuqhelekileyo, i-cross-sectional shape yesango i-rectangular okanye i-circular, kwaye indawo enqamlekileyo kufuneka ibe yincinci kwaye ubude bube bufutshane. Oku akusekelwe kuphela kwimiphumo engentla, kodwa nangenxa yokuba kulula ukuba amasango amancinci abe mkhulu, kwaye kunzima ukuba amasango amakhulu anciphise. Indawo yesango kufuneka ikhethwe ngokubanzi apho umkhiqizo unzima kakhulu ngaphandle kokuchaphazela ukubonakala. Uyilo lobungakanani besango kufuneka luthathele ingqalelo iipropati zeplastiki enyibilikayo.
I-Cavity yindawo ekubunjweni kokubumba iimveliso zeplastiki. Amalungu asetyenziselwa ukwenza umgodi abizwa ngokudibeneyo njengeendawo ezibunjiweyo. Indawo nganye ebunjiweyo idla ngokuba negama elikhethekileyo. Amalungu abunjiweyo abandakanya imilo yemveliso abizwa ngokuba yi-concave molds (ekwabizwa ngokuba yi-molds yabasetyhini), eyenza imilo yangaphakathi yemveliso (Efana nemingxuma, iindawo zokubeka, njl. njl.) zibizwa ngokuba zii-cores okanye iipunches (ezaziwa ngokuba zii-molds zamadoda. ). Xa uyila iinxalenye ezibunjiweyo, ulwakhiwo olupheleleyo lombhobho kufuneka luqale lugqitywe ngokweempawu zeplastiki, ijometri yemveliso, ukunyamezela komlinganiselo kunye neemfuno zokusetyenziswa. Okwesibini kukukhetha indawo yokwahlula, indawo yesango kunye nomngxuma wokukhupha umoya kunye nendlela yokudiliza ngokwesakhiwo esimiselweyo.
Ekugqibeleni, ngokobukhulu bemveliso yolawulo, ukuyila kwenxalenye nganye kunye nokudibanisa inxalenye nganye kunqunywe. Iplastiki enyibilikayo inoxinzelelo oluphezulu xa ingena kwi-cavity, ngoko ke iindawo ezibunjiweyo kufuneka zikhethwe ngokufanelekileyo kwaye zihlolwe amandla kunye nokuqina. Ukuze kuqinisekiswe umgangatho ogudileyo nomhle weemveliso zeplastiki kunye nokudilizwa lula, uburhabaxa bomphezulu xa udibana neplastiki kufuneka ibe yiRa> 0.32um, kwaye kufuneka ikwazi ukumelana nomhlwa. Amalungu abunjiweyo aphathwa ngokushushu ukuze anyuse ubulukhuni, kwaye ayenziwe ngentsimbi enganyangekiyo kwi-corrosion.
Ixesha lokuposa: Sep-22-2021