Phakathi kweenkqubo ezahlukeneyo zokubumba iimbumba zeplastiki,isitofu sokubumba yeyona isetyenziswa kakhulu.Ithiyori ibonisa ukuba ukubunjwa kwenaliti kuneenzuzo zokusebenzisa izinto ezinamandla, ukukwazi ukubumba iimveliso ezinezakhiwo ezinzima ngexesha elinye, iimeko zenkqubo evuthiweyo, ukuchaneka kwemveliso ephezulu, kunye neendleko eziphantsi zokusetyenziswa.Ke ngoko, iimveliso ezibunjiweyo zenaliti ziphendula ubungakanani beemveliso zeplastiki amaxesha ngamaxesha.Ngokunyuka, iinkqubo ezinxulumeneyo, izixhobo, ukubumba kunye neendlela zokulawula ukusetyenziswa nazo ziye zaphuhliswa ngokukhawuleza.
I-Thermoplastics ngamalungu eplastiki anokuthi abunjwe abe yimo ethile xa ishushu, kwaye ibambelele kwimilo egqityiweyo emva kokupholisa.Ukuba ishushu kwakhona, inokuthamba kwaye inyibilike, kwaye inxalenye yeplastiki enemilo ethile inokwenziwa kwakhona, kwaye inokumiswa ngokuphindaphindiweyo, eguqulwayo.
Ngenxa yokuba i-thermoplastics zizinto ezinokuthi zifudunyezwe ngokuphindaphindiweyo kwaye zithambe kwaye zipholile kwaye ziqiniswe, zinokuphinda ziqiniswe kwaye zenziwe ngokufudumeza kunye nokunyibilika, ngoko ke inkunkuma ye-thermoplastics inokuphinda isetyenziswe kwakhona kwaye isetyenziswe kwakhona, ebizwa ngokuba yi-"secondary material". ”.I-post-shrinkage yamalungu abunjiweyo enaliti ibhekisa kwinto yokuba xa iinxalenye ezibunjiweyo zenaliti zibunjwa, uthotho loxinzelelo lwenziwa ngenxa yotshintsho lwangaphakathi lomzimba, iikhemikhali kunye noomatshini.Emva kokuba iinxalenye ezibunjiweyo zenaliti zibunjiwe kwaye ziqiniswa, kukho uxinzelelo olushiyekileyo.Emva kokuba iindawo ezibunjiweyo zenaliti zibunjiwe, ngenxa yoxinzelelo olwahlukeneyo lwentsalela, Iya kubangela ukuba ubungakanani beendawo ezibunjiweyo zenaliti zehle kwakhona.
Ngokwesiqhelo, isitofu esibunjiweyo sincipha kakhulu kwiiyure ezili-10 emva kokudilizwa, kwaye ibunjwe ngokwesiseko emva kweeyure ezingama-24, kodwa kuthatha ixesha elide ukufikelela kwimilo yokugqibela.Ngokubanzi, i-post-shrinkage ye-thermoplastics inkulu kuneyeplastiki ye-thermoset, kwaye i-post-shrinkage yesitofu esibunjiweyo kunye neendawo ezibunjiweyo zesitofu zinkulu kunezo ze-injection ezibunjiweyo zenaliti ezibunjiweyo.
Ixesha lokuposa: Aug-17-2021