Xa ukunyanzeliswa ukubunjwa kweeplastiki ze-thermosetting kwiiimbumba ze-carbide ezenziwe ngesamente, kufuneka zigcinwe kubushushu obuthile kunye noxinzelelo lwexesha elithile ukuze zinqumle ngokupheleleyo kwaye ziqinise zibe ngamalungu eplastiki kunye nokusebenza okugqwesileyo. Eli xesha libizwa ngokuba lixesha loxinzelelo. Ixesha loxinzelelo lihambelana nohlobo lweplastiki (uhlobo lwe-resin, umxholo wezinto eziguquguqukayo, njl.), imilo yenxalenye yeplastiki, iimeko zenkqubo yokubunjwa koxinzelelo (ubushushu, uxinzelelo), kunye namanyathelo okusebenza (nokuba ngaba ukukhupha, ukunyanzeliswa kwangaphambili, ukushisa kwangaphambili), njl. Ke ngoko, umjikelo woxinzelelo uya kuncipha njengoko ubushushu besikhunta bukhula. Impembelelo yokunyanzeliswa koxinzelelo ngexesha lokubumba ayibonakali njengokushisa kokubumba, kodwa njengoko uxinzelelo lukhula, ixesha lokunyanzeliswa liya kuncipha kancinci. Ekubeni ukufudumala kunciphisa ukuzaliswa kweplastiki kunye nexesha lokuvula isikhunta, ixesha loxinzelelo lifutshane kunokuba lingabikho ngaphambili. Ngokuqhelekileyo ixesha loxinzelelo landa njengoko ubukhulu benxalenye yeplastiki sanda.
Ubude bexesha lokunyanzeliswa kwe-cemented carbide mold inempembelelo enkulu ekusebenzeni kweengxenye zeplastiki. Ukuba ixesha lokunyanzeliswa lifutshane kakhulu kwaye iplastiki ayiqini ngokwaneleyo, ukubonakala kunye neempawu zomatshini zamacandelo eplastiki ziya kuhlahloka, kwaye iindawo zeplastiki ziya kuphazamiseka ngokulula. Ukunyusa ngokufanelekileyo ixesha lokunyanzeliswa kunokunciphisa izinga lokucutheka kwamalungu eplastiki kunye nokuphucula ukuxhathisa ubushushu kunye nezinye iimpawu zomzimba kunye noomatshini be-carbide molds. Nangona kunjalo, ukuba ixesha lokunyanzeliswa lide kakhulu, aliyi kunciphisa imveliso kuphela, kodwa liya kwandisa izinga lokunciphisa inxalenye yeplastiki ngenxa yokudibanisa ngokugqithiseleyo kwe-resin, okubangelwa uxinzelelo, okubangelwa ukuhla kweempawu zomatshini zenxalenye yeplastiki, kwaye kwiimeko ezinzima, inxalenye yeplastiki inokugqabhuka. Kwiiplastiki ze-phenolic ngokubanzi, ixesha lokunyanzeliswa yi-1 ukuya kwimizuzu emi-2, kunye neeplastiki ze-silicone, kuthatha imizuzu emi-2 ukuya kwe-7.
Yeyiphi imigaqo-siseko yokukhetha izinto zokubumba ze-carbide zesamente?
I-1) Iimfuno zokusebenza ze-carbide mold kufuneka zihlangane. Kufuneka ibe namandla okwaneleyo, ubunzima, iplastiki, ukuqina, njl. ukuhlangabezana neemeko zokusebenza, iindlela zokungaphumeleli, iimfuno zobomi, ukuthembeka, njl njl.
I-2) Izinto ezikhethiweyo kufuneka zibe neepropati ezilungileyo zokucubungula ngokweenkqubo ezahlukeneyo zokuvelisa.
3) Imeko yokubonelela ngemarike kufuneka ithathelwe ingqalelo. Izibonelelo zemarike kunye neyona meko yokubonelela kufuneka ithathelwe ingqalelo. Zama ukusombulula ingxaki ekhaya ngokungenisa ngaphantsi, kwaye iintlobo kunye neenkcukacha kufuneka zigxininiswe.
I-4) I-Carbide molds kufuneka ibe yezoqoqosho kwaye ingqiqo, kwaye uzame ukusebenzisa izinto eziphantsi kwexabiso eliphantsi ezihlangabezana nokusebenza kunye neemeko zokusetyenziswa.
Ixesha lokuposa: Aug-02-2024
