Ziziphi iindlela zokusetyenzwa kunye nokubumba i-EVA

I-EVA (i-ethylene vinyl acetate copolymer) sisixhobo seplastiki esisetyenziswa ngokuqhelekileyo esineprosesa egqwesileyo kunye neempawu ezibonakalayo, ngoko ke isetyenziswa ngokubanzi kwiinkalo ezahlukeneyo. Emva koko, iindlela ezifanelekileyo zokuEVAukusetyenzwa kuya kuqaliswa ngokulandelayo, kubandakanywa i-extrusion, ukubumba inaliti, i-calendering kunye noxinzelelo olushushu.

1. Indlela yokukhupha
I-Extrusion yindlela eqhelekileyo yokucubungula i-EVA. Amasuntswana e-EVA afudunyezwa kwaye anyibilike emva koko i-EVA enyibilikisiweyo ikhutshwe nge-extruder. Le ndlela ifanelekile ukuvelisa iimveliso ze-EVA zeemilo ezahlukahlukeneyo, ezifana namacwecwe, iipayipi, iiprofayili, njl.

2. Indlela yokubumba isitofu
Indlela yokubumba inaliti kukufaka i-EVA etyhidiweyo kwi-mold, kwaye ngokupholisa kunye nokuqiniswa kwe-mold, iimveliso ezifunekayo ze-EVA zifunyenwe. Indlela yokubumba i-injection ifanelekile ukuvelisa iimveliso ze-EVA ezinobumba obuntsonkothileyo, njengee-sole, iinxalenye, njl.

3. Indlela yekhalenda
Indlela ye-calendering kukukhupha ngokuqhubekayo kunye ne-calender i-EVA etyhidiweyo ngokusebenzisa i-calender ukuyipholisa ngokukhawuleza ibe ngumfanekiso wefilimu. Le ndlela ifanelekile ukuveliswa kweefilimu ze-EVA, iifilimu zokupakisha kunye nezinye iimveliso. Indlela ye-calendering ineenzuzo zesantya sokuvelisa ngokukhawuleza kunye nokufana okulungileyo kwemveliso, ngoko isetyenziswa ngokubanzi kwishishini lokupakisha.

4. Indlela yokucinezela eshushu
Indlela yokucinezela eshushu kukubeka iphepha le-EVA elinyibilikisiweyo kwi-mold, kwaye liqiniswe ngokufudumeza kunye noxinzelelo lwe-mold. Le ndlela ifanelekile ukuveliswa kwee-insoles ze-EVA, iiponji ze-EVA kunye nezinye iimveliso. Ukucinezela okushushu kuneenzuzo zokuchaneka okuphezulu kokubumba kunye nomgangatho omhle wemveliso, ngoko ke isetyenziswa ngokubanzi kwizinto ezizihlangu, iimpahla zasekhaya kunye namanye amashishini.

Ukushwankathela, iindlela zokusetyenzwa kwe-EVA ziquka i-extrusion, isitofu sokubumba, i-calendering kunye noxinzelelo olushushu. Iindlela ezahlukeneyo zokucwangcisa zifanelekile kwiimveliso ezahlukeneyo. Ukukhetha indlela yokucubungula efanelekileyo kunokuphucula ukusebenza kakuhle kwemveliso kunye nomgangatho wemveliso. Kumsebenzi wangempela, kuyimfuneko ukukhetha indlela efanelekileyo yokucubungula ngokweemfuno zemveliso kunye neemeko zemveliso, kwaye wenze uhlengahlengiso oluhambelanayo lwenkqubo kunye nokukhethwa kwezixhobo. Ngokuqhubeka nokuphucula kunye nokuphucula iindlela zokusetyenzwa, ukusebenza kunye nokukhuphisana kweemveliso ze-EVA kunokuphuculwa ukuhlangabezana nemfuno yemarike.