Ukubumba umjovo wepulasitiki kuyinqubo yokukhiqiza ebandakanya ukwakhiwa kwezingxenye zepulasitiki ngokusebenzisa isikhunta esiklanywe ngokukhethekile.Isikhunta ngokuvamile senziwe ngensimbi futhi siklanyelwe ukuma nosayizi wengxenye oyifunayo, enezimbotshana namashaneli omjovo wento yepulasitiki.Inqubo yokubumba umjovo wepulasitiki iqala ngokulungiswa kwesikhunta, okungase kudinge umshini okhethekile noma ukwenziwa.Isikhunta sibe sesiboshelwa endaweni emshinini wokubumba umjovo, ohlanganisa i-hopper yezinto zepulasitiki, umphongolo oshisayo oncibilikisa impahla, kanye ne-plunger noma isikulufu esiphoqelela ipulasitiki encibilikisiwe esikhunjeni.Uma isikhunta sesigcwalisiwe, sivunyelwe ukupholisa futhi siqinise, ngokuvamile kuthatha imizuzwana embalwa noma amaminithi, kuye ngobukhulu nobunkimbinkimbi bengxenye.Khona-ke isikhunta siyavulwa, bese ingxenye eqediwe ikhishwa emgodini wesikhunta.Le nqubo ingaphinda ikhiqize izingxenye ezifanayo eziningi, umshini wokubumba umjovo uhamba ngokuzenzakalelayo phakathi nenqubo.Ukubumba umjovo wepulasitiki kunikeza izinzuzo eziningi kunezinye izinqubo zokukhiqiza, okuhlanganisa amandla okukhiqiza amajiyometri ayinkimbinkimbi, ukunemba okuphezulu nokuphindaphinda, nezindleko eziphansi zomsebenzi.Ukwengeza, ukusetshenziswa kwezinto zepulasitiki kuvumela izinhlobonhlobo zezakhiwo zomzimba namakhemikhali, okuvumela ukukhiqizwa kwezingxenye ezinezidingo ezithile zamandla, ukuguquguquka, ukucaca, nokumelana nokushisa, amakhemikhali noma ezinye izici zemvelo.Sekukonke, ukubumba komjovo wepulasitiki kuyinqubo yokukhiqiza eguquguqukayo nesebenza kahle esetshenziswa kabanzi ezimbonini eziningi, kusukela kwezezimoto kanye ne-aerospace kuya kumishini yezokwelapha nezimpahla zabathengi.
Ukubumba komjovo wePlastiki kuyinqubo yokukhiqiza lapho impahla yepulasitiki encibilikisiwe ijova emgodini wesikhunta ukuze kwakheke umumo othile noma umklamo.Isetshenziselwa ukukhiqiza imikhiqizo eminingi yepulasitiki, kusukela ezingxenyeni ezincane kuya ezingxenyeni ezinkulu eziyinkimbinkimbi
Izinhlobonhlobo zezinto zepulasitiki zingasetshenziswa ekubumbeni umjovo wepulasitiki, okuhlanganisa i-thermoplastics, amapulasitiki ashisayo, nama-elastomers.Ama-thermoplastic asetshenziswa kakhulu afaka i-ABS, i-polycarbonate, inayiloni, ne-polypropylene.
Ukubumba umjovo wepulasitiki kunikeza izinzuzo ezimbalwa, okuhlanganisa amanani aphezulu okukhiqiza, ukukhiqizwa kwengxenye okungaguquki nokuphindaphindwayo, ukuguquguquka kwedizayini, kanye nempumelelo yezindleko zokugijima kokukhiqizwa kwevolumu ephezulu.
Isikhunta somjovo wepulasitiki senziwa kusetshenziswa isofthiwe ye-computer-aid design (CAD) ukuze kwakhiwe imodeli enemininingwane ye-3D yomkhiqizo.Lo modeli ube ususetshenziswa ukukhiqiza isikhunta kusetshenziswa amasu okumashini athuthukile njenge-CNC machining noma ukuguguleka kwenhlansi.
Ukulawula ikhwalithi yokubunjwa komjovo wepulasitiki, kubalulekile ukusebenzisa izinto zekhwalithi ephezulu, ukugcina nokuhlola imishini yokubumba umjovo kanye namathuluzi njalo, futhi wenze ukuhlola kokulawula ikhwalithi kuwo wonke amaqoqo okukhiqiza ukuze kuqinisekiswe ukusebenza okungaguquki kanye nekhwalithi yomkhiqizo.
Amaphutha ajwayelekile ekubumbeni umjovo wepulasitiki ahlanganisa i-warpage, izimpawu zokucwila, ukukhanya, nokungapheleli kwendawo.Ukuze ugweme lezi zinkinga, kubalulekile ukulungisa isivinini somjovo nokucindezela, ulawule amazinga okupholisa, futhi ukhethe into efanele kanye nomklamo wesikhunta.