Isikrufu kunye nokukhethwa kwempahla yomgqomo

Ngexesha lenkqubo ye-extrusion, i-screw ihlala ibonakaliswe kwiimeko zokusebenza ezifana ne-torque ephezulu, ubushushu obuphezulu, isantya esiphezulu, kunye noxinzelelo oluphezulu. Ngamanye amaxesha iphinda ibonakale kwiimeko ezinzima ezifana nokunxiba okuphezulu kunye nokubola. Ke ngoko, ukhetho lwezixhobo zokujija kufuneka luthathele ingqalelo imiba efana namandla, ukuxhathisa ukunxiba, kunye nokumelana nomhlwa. . Kuba ezidityanisiweyo co-ojikeleza izikrufu amawele, ekubeni jija wamkela isakhiwo mandrel, ingxaki amandla Screw iguqulwa ibe yingxaki amandla mandrel. Ngenxa yokuba i-mandrel ilinganiselwe yisakhiwo, inomnqamlezo omncinci, kwaye ithwala i-torque enkulu, kuyimfuneko ukukhetha i-mandrel ephezulu yamandla. Izinto Screw ngokubanzi azinangxaki zamandla, kuba itorque enyamezelwa sisikrufu sonke isasazwe kwisikrufu ngasinye sincinci kakhulu, kwaye umphezulu we-spline othwele uxinzelelo kwi-screw element ethwele amandla ajikelezayo akayi kuba namandla anganelanga. Ke ngoko, ukumiselwa kobukhulu bodonga phakathi komngxuma osembindini wesikrufu esidityanisiweyo kunye nobubanzi bengcambu yesixhobo sokujija ngokuqhelekileyo asisekelwanga kuqwalaselo lwamandla, kodwa kukuqhekeka okunokonakala emva konyango lobushushu. Ubuncinane bodonga lobunzima be-screw element enokuqinisekisa ukuba i-brittle fracture ayenzeki emva konyango lobushushu Okwaneleyo ukuhlangabezana neemfuno zamandla.

Uninzi lwabavelisi bezikrufu basekhaya bangaphambili basebenzisa intsimbi eyi-38CrMoAlA, kwaye izikrufu zafakwa nitrided emva kokuba zenziwe. Abanye abavelisi bamazwe angaphandle basebenzisa intsimbi eneklorini ukwenza izikrufu. Ubukhulu bomaleko we-nitride ngokuqhelekileyo yi-0.3 ~ 0.5mm, enokuthi ihlangabezane neemfuno eziqhelekileyo.