Ngenjongo ngokubanzi{{0}iplastiki zenjongo ngaphandle kokongeza idangatye elibuyisela amadangatya, eziqhelekileyo eziqhelekileyo-izikrufu zenjongo zingasetyenziswa; khetha ngokulula i-diameter efanelekileyo ngokusekelwe kwi-viscosity yokunyibilika. Nangona kunjalo, kwiiplastiki ezineepropati ezikhethekileyo, iimveliso ezikhethekileyo, okanye iiplastiki ezinemilo yegranule ekhethekileyo, kufuneka kusetyenziswe izikrufu ezikhethekileyo. Ngokuphangaleleyo -izikrufu zenjongo zingaphantsi kwizikrufu ezikhethekileyo ngokokwenziwa kweplastiki kunye nokusetyenziswa kwamandla kwiplastiki ethile. Apha ngezantsi kukho ingcaciso eneenkcukacha kwizikrufu ezikhethekileyo ezenzelwe iimveliso ezikhethekileyo kunye neemfuno.
I-PC Specialized Screw: I-PC iphezulu-i-viscosity, engeyiyo-iplastiki yekristale kunye nokuhamba kakubi. Ithanda ukuthotywa phantsi kokufudumeza ixesha elide, ine-torque ephezulu yokutya, kunzima ukunyibilika, kwaye iyakwazi ukuvaleka. Ifuna ubushushu obuphezulu bemathiriyeli kunye{4}}nenaliti yoxinzelelo oluphezulu, inoluhlu olumxinwa lolawulo lobushushu, kwaye ukuqhubekeka kwayo akulunganga njenge-PMMA.
Isikrufu senziwe ngentsimbi ephezulu{0}}yengxubevange enengxubevange enonyango oluqina ngokupheleleyo, ngokufanelekileyo ukumelana netorque ephezulu kunye{1}}nefuthe loxinzelelo oluphezulu. Ayigugi-iyaxhathisa, inomphezulu owenziwe ngombane wokuxhathisa umhlwa, kwaye igudileyo,-ayinamingxuma ukucutha ukuncamathela komphezulu kunye nokonakala. Isakhiwo esineenkcukacha sicutshungulwa ngononophelo ukukhusela ngokufanelekileyo ukuqokelela kweglue. Ibonisa uyilo olusezantsi{7}}lokucheba kunye nemveliso yobushushu obuphantsi. Ngokubanzi, iidayamitha ezincinci ukuya eziphakathi ziyasetyenziswa, kwaye iqhuba kakuhle ekubumbeni iPCABS+PCPP{10}}R kunye nedangatye{11}}eretardant ABS. Inokubumba iiplastiki eziqhelekileyo kunye neemveliso ze-PMMA eziqhelekileyo, kodwa umphumo wokuxuba umbala umbi kakhulu. Ukuba umgubo wombala wongezwe kwiplastiki,{14}}umbala owenziweyo oqinisiweyo owenziweyo{15}}owenziwe isikrufu sokudibanisa uyafuneka.
Kwi-ultra-ukubumba okuchanekileyo okucekeceke kakhulu kushishino, sinikezela ngokunciphisa isikhonkwane sedayamitha kunye nokunciphisa ubude, ukunyuka koxinzelelo lwenaliti ukuya ngaphezulu kwe-3000 kgf/cm, kunye neyunithi yenaliti yokufudusa uhlengahlengiso oluya phambili (inokubuyiselwa kwimeko yayo yokuqala emva kokuguqulwa).
PMMA-specific screw: PMMA is a high-viscosity non{2}}iplastiki yecrystalline eneempawu ezomeleleyo kwaye ziqinile, itorque ephezulu yokutya, ukunyibilika nzima, ukuvaleka lula, ukucheba, kunye nokuthotywa lula. Inokuhamba kakubi kancinci kwaye ifuna ubushushu obuphezulu besixhobo kunye nenaliti yoxinzelelo oluphezulu. Inoluhlu olubanzi lohlengahlengiso lobushushu kunye nokuqhubekeka kakuhle.
I-CP kunye ne-CA i-acidic screw assemblies: Ukuqwalasela imeko enobungozi kakhulu yeeplastiki ezine-acidic ezifana ne-CP kunye ne-CA, i-screw, i-barrel enyibilikayo, kunye nezinye iindawo zeplastiki ziyilwe ngokukodwa ngokwesakhiwo kunye nonyango lwangaphandle. Indibano yesikrufu inokumelana nokugqwala okulungileyo. Kunconywa ukusebenzisa i-bimetallic barrel yokumelana nokubola.
PVC{0}}izikrufu ezithile. Iplastiki yePVC inokohlulwa ibe ziifom zegranular kunye nomgubo. Inomdla kakhulu kubushushu kwaye ibola ngokulula, kunye ne-viscosity ephezulu kunye nokuhlwa okunamandla. Uyilo lwesijivu luneempawu ezimbini: umphezulu kufuneka ube yi-chrome{4}}ifakwe icwecwe; kwaye akukho makhonkco okwahlula okanye izahluli.
