Inxalenye nganye yeplastiki ifuna inkqubo ethile yokuvelisa enokuthi yahluke kakhulu kwimveliso enye ukuya kwenye.Isitofu sokubumba sisetyenziselwa ukwenza izinto eziqinileyo ngelixa ukubumba ukuvuthela kusetyenziselwa ukwenza iimveliso zeplastiki ezineendawo ezingenanto, ezifana neebhotile kunye nezikhongozeli.
Isitofu sokuvuthela isivuthelo sokubumba sidibanisa ukubumba kunye nokuvuthela iinkqubo.Iplastiki iqala ukubunjwa ibe yi-preform eqinileyo, ukwenza intamo yebhotile enemisonto.Nje ukuba i-preform ipholile ifakwe kumatshini wokubumba olula.I-preform iphinda ifudunyezwe kusetyenziswa isifudumezi se-infrared kwaye ivuthelwe kwibhotile yeplastiki enomoya onyanzelweyo.
Inkqubo yokuMonda iTofo
Isitofu sokubumba sisetyenziselwa ukwenza umthamo ophezulu weemveliso zeplastiki ukusuka kumalungu amakhulu ukuya kwizinto ezincinci ezifuna ukuchaneka kokuchaneka kancinci.
Zininzi iintlobo zeendlela zokuvelisa ezihlelwe phantsi kokubunjwa kwenaliti, njengokubumba inaliti ye-thermoplastic, ukubumba ngaphezulu, ukufaka ukubumba, ukubumba kwembaleki ebandayo kunye nokubumba kwembaleki eshushu.
Thermoplastic Injection Molding
Ukubumba inaliti ye-Thermoplastic isebenzisa i-polymer ye-thermoplastic, oku kuthetha ukuba itshintshela kwimeko yolwelo xa ishushu.Ngokungafaniyo neeplastiki ze-thermoset eziphola zibe sisiqina esisisigxina, i-thermoplastics inokuthunyelwa kulwelo emva kokupholisa ibe yinto eqinileyo.
Overmolding
I-overmolding, okanye ukubumba i-shot two, yinkqubo egquma ukungunda kwesitofu phezu kwenye into, efana nentsimbi, ukuphucula ukusebenza okanye ukuqina kwemveliso.Ikhompawundi efana nerabha, ebizwa ngokuba yi-thermoplastic elastomer (TPE), yinto eqhelekileyo esetyenziswa ngokugqithisileyo.Umzekelo we-TPE ye-overmold yesicelo kukubamba ukubamba kwibrashi yamazinyo.Ii-Overmolds zisenokusetyenziswa ukutywina iimveliso ezinamacandelo enziwe ngokubumba ngokutofa okuninzi.
Faka Ukubumba
Njengokugqithisa, ukufaka ukubumba yinkqubo yokubumba inaliti edibanisa izinto ezimbini okanye ngaphezulu kwimveliso enye egqityiweyo.Faka inaliti yokubumba ifakela icandelo kumngxuma wokungunda wenaliti kwaye imathiriyeli yeplastiki igcwaliswe kwindawo efakelweyo.Ukufakwa kunokongeza amandla kwimveliso kwaye kuphelise imfuno yeendawo ezongezelelweyo zokunciphisa ubunzima bemveliso.
Ukubunjwa kweMbaleki ebandayo yesitofu
Imibumbo yeembaleki ezibandayo zisebenzisa i-sprue ukuzalisa iimbaleki ezifaka intlaka yeplastiki kumgodi wokungunda.Kwi-2 i-plate molds, inkqubo yomqhubi kunye neengxenye ziqhotyoshelweyo, kwaye inkqubo ye-ejection ingasetyenziselwa ukwahlula ibini kwi-mold.Umgijimi obandayo unokunciphisa inkunkuma ngokuhlaziya kwakhona kunye nokubuyisela izinto eziphathekayo, kodwa oku kunokwandisa ixesha lokujikeleza. .Iinkqubo ezibalekayo ezibandayo zingasetyenziselwa iintlobo ngeentlobo zeepolymers kwaye zinokuvumela utshintsho lwemibala lula.
I-Hot Runner Molds
Imibumbo yeembaleki ezishushu zisebenzisa izinto ezininzi ukufudumeza intlaka yeplastiki enyibilikisiweyo emva koko ithumele imathiriyeli ngesango ukuzalisa umngxuma wokungunda.Iintlobo ezimbini eziphambili zokubumba komgijimi oshushu zifudumala ngaphandle kwaye zifudumala ngaphakathi.Iimbumba ezifudunyezwayo zangaphandle zingasetyenziselwa kunye ne-polymer engaphantsi kobuthathaka kwiinguqu ze-thermal ngelixa i-molds yangaphakathi ifudumala eshushu eshushu ivumela ukulawula okungcono ukuhamba kwezinto.
Ngenxa yokuba ukubunjwa kwembaleki eshushu akufuni ukusetyenziswa kweembaleki, inkunkuma enokubakho iyancitshiswa kwaye ukuphinda kusetyenziswe kunye nokugaywa kwakhona kunye nenkqubo yeplastiki enyulu ayichaphazeli ixesha lokujikeleza lilonke.
Inkqubo yokuBumba iBlow
Ngexesha lenkqubo yokuvuthela, imathiriyeli yeplastiki ekrwada ibunjwa ibe yityhubhu enomgongxo enencam enye evulekileyo ebizwa ngokuba yicawa.Icawe icinezelwe ibe yintsimbi epholileyo kwaye umoya unyanzelwe ukuba ungene kwintolongo.Xa iplastiki eyenziweyo iphola kwaye yomelela, ukungunda kwentsimbi kuyavula kwaye kukhuphe imveliso.
Ixesha lokuposa: Jun-10-2017