Umngundo weplastiki ubukhulu becala wenziwe ngamacandelo amathathu: inkqubo yokugalela, iinxalenye zokubumba kunye nezakhiwo.Phakathi kwazo, inkqubo yokugaya kunye neendawo zokubumba ngamalungu adibana ngokuthe ngqo neplastiki, kunye nokutshintsha kunye neplastiki kunye nemveliso.Zezona ndawo zintsonkothileyo kwaye ziguquguqukayo zomngundo weplastiki kwaye zifuna ukugqiba ukusetyenzwa okuphezulu kunye nokuchaneka.
Inkqubo yeplastiki yokuvula ukungunda ibhekisa kwindawo yembaleki phambi kokuba iplastiki ingene kumngxuma isuka kumlomo, kubandakanywa imbaleki ephambili, umngxuma wezinto ezibandayo, imbaleki kunye nesango.Amalungu abunjiweyo abhekisa kumalungu ahlukeneyo enza imilo yemveliso, kubandakanywa ukubumba okushukumayo, ukubumba okuzinzileyo kunye nemingxuma, iintsimbi, iintonga zokubumba, kunye nezibuko zokukhupha.
1. Eyona nto iphambili
Yindlela yokubumba edibanisa i-nozzle yomshini wokutofa kumgijimi okanye kwi-cavity.Umphezulu we-sprue u-concave wokuzibandakanya kunye nomlomo.
I-diameter ye-inlet ye-channel engundoqo kufuneka ibe nkulu kancinane kunobubanzi bombhobho (0.8mm) ukuphepha ukuphuphuma kunye nokuthintela ezimbini ukuba zivaliwe ngenxa yoxhulumaniso olungachanekanga.
Ububanzi bokungena kuxhomekeke kubukhulu bemveliso, ngokubanzi 4-8mm.Idayamitha ye-sprue kufuneka yandiswe ngaphakathi kwi-engile ye-3 ° ukuya ku-5 ° ukuququzelela ukukhutshwa kobutyobo bembaleki.
2. Umngxuma wezinto ezibandayo
Ingumngxuma ekupheleni komjelo oyintloko wokubamba izinto ezibandayo ezenziwe phakathi kweenaliti ezimbini ekupheleni komlomo, ngaloo ndlela kuthintela ukuvaleka komgijimi okanye isango.Ukuba izinto ezibandayo zixutywe kwi-cavity, uxinzelelo lwangaphakathi lwenziwa lula kwimveliso eyenziweyo.
Ububanzi bomngxuma wezinto ezibandayo malunga ne-8-10mm, kwaye ubunzulu buyi-6mm.Ukuze kube lula ukudiliza, umzantsi uhlala uthwalwa yintonga yokudiliza.Umphezulu wentonga yokudiliza kufuneka uyilwe njenge hook egoso-goso okanye umjelo otshoneyo, ukuze i-sprue itsalwe kakuhle xa idilizwa.
Okwesithathu, i-shunt
Ingumjelo odibanisa umjelo oyintloko kunye nomgodi ngamnye kwi-multi-slot mold.Ukuze wenze i-melt igcwalise i-cavity nganye ngesantya esifanayo, ukucwangciswa kwabagijimi kwi-mold kufuneka kube yi-symmetrical and equidistant.Ubume kunye nobukhulu becandelo lomgijimi linempembelelo ekuhambeni kweplastiki yokunyibilika, ukuchithwa kwemveliso kunye nokukhululeka kokuveliswa kwesikhunta.
Ukuba ukuhamba kwezinto ezifanayo kucatshangelwa, ukuchasana komjelo wokuhamba kwecandelo lesetyhula kuncinci.Nangona kunjalo, ngenxa yokuba indawo ethile yomqhubi we-cylindrical incinci, ayifanelekanga ukupholisa izinto ezingafunekiyo zombaleki, kwaye umgijimi kufuneka avulwe kwii-halves ezimbini zokubumba, ezisebenza ngamandla kwaye kulula ukulungelelanisa. .
Ixesha lokuposa: Aug-24-2022