Izinga lokushisa
Ukulinganisa izinga lokushisa nokulawula kubaluleke kakhulu ekubumbeni umjovo.Nakuba lezi zilinganiso zilula, imishini eminingi yokubumba umjovo ayinawo amaphuzu okushisa anele noma izintambo.
Emishinini eminingi yokujova, izinga lokushisa lizwakala nge-thermocouple.
I-thermocouple izintambo ezimbili ezihlukene ezihlangana ndawonye ekugcineni.Uma uhlangothi olulodwa lushisa kunolunye, kuzokwenziwa umlayezo omncane we-telegraph.Ukushisa okwengeziwe, isignali inamandla.
Ukulawula izinga lokushisa
Ama-Thermocouples nawo asetshenziswa kabanzi njengezinzwa ezinhlelweni zokulawula izinga lokushisa.Ethuluzini lokulawula, izinga lokushisa elidingekayo liyasethwa, futhi isibonisi senzwa siqhathaniswa nezinga lokushisa elikhiqizwa endaweni emisiwe.
Kuhlelo olulula, lapho izinga lokushisa lifinyelela iphuzu elimisiwe, liyacishwa, futhi amandla aphinde avulwe lapho izinga lokushisa lehla.
Le sistimu ibizwa ngokuthi i-on/off control ngoba ivuliwe noma ivaliwe.
Ingcindezi yomjovo
Lona umfutho obangela ukuthi ipulasitiki igeleze futhi ingakalwa ngezinzwa ku-nozzle noma kulayini we-hydraulic.
Ayinalo inani elinqunyiwe, futhi kunzima kakhulu ukugcwalisa isikhunta, ingcindezi yomjovo nayo iyanda, futhi kukhona ubudlelwano obuqondile phakathi kwengcindezi yomugqa womjovo nokucindezela komjovo.
I-Stage 1 pressure kanye ne-stage 2 pressure
Phakathi nesigaba sokugcwalisa somjikelezo womjovo, ingcindezi ephezulu yomjovo ingadingeka ukuze kugcinwe izinga lomjovo ezingeni elidingekayo.
Ukucindezela okuphezulu akusadingeki ngemuva kokugcwaliswa kwesikhunta.
Kodwa-ke, ekubunjweni komjovo kwamanye ama-semi-crystalline thermoplastics (njenge-PA ne-POM), isakhiwo sizowohloka ngenxa yokushintsha okungazelelwe kwengcindezi, ngakho ngezinye izikhathi asikho isidingo sokusebenzisa ingcindezi yesibili.
I-clamping pressure
Ukuze ulwe nokucindezela komjovo, ingcindezi ye-clamping kufanele isetshenziswe.Esikhundleni sokukhetha ngokuzenzekelayo inani eliphezulu elitholakalayo, cabangela indawo eqanjiwe futhi ubale inani elifanele.Indawo ehlongozwayo yocezu lomjovo iyindawo enkulu kunazo zonke ebonwa lapho kusetshenziswe khona amandla okubamba.Emakesini amaningi okubumba umjovo, angaba amathani ama-2 iyintshi yesikwele, noma amamegabhayithi angama-31 ngemitha yesikwele.Kodwa-ke, lokhu kuyinani eliphansi futhi kufanele kubhekwe njengomthetho onzima wesithupha, ngoba uma ucezu lomjovo lunoma yikuphi ukujula, izindonga eziseceleni kufanele zicatshangelwe.
Ukucindezela emuva
Lena ingcindezi isikulufu esidinga ukwenziwa futhi sinyuswe ngaphambi kokuthi sibuyele emuva.Ukucindezela okuphezulu kwe-back back kuhambisana nokusatshalaliswa kombala ofanayo kanye nokuncibilika kwepulasitiki, kodwa ngasikhathi sinye, kwandisa isikhathi sokubuya kwesikulufa esiphakathi, kunciphisa ubude befiber equkethwe epulasitiki yokugcwalisa, futhi kwandisa ukucindezeleka kokubunjwa komjovo. umshini.
Ngakho-ke, ukwehla kwengcindezi yangemuva, kungcono, ngaphansi kwezimo akukhona ukudlula ingcindezi yomshini wokubumba umjovo (isilinganiso esiphezulu) esingu-20%.
Umfutho weNozzle
Umfutho weNozzle uwukucindezela kokudubula emlonyeni.Kumayelana nengcindezi edala ukuthi upulasitiki ugeleze.Ayinalo inani elinqunyiwe, kodwa iyanda ngobunzima bokugcwalisa isikhunta.Kunobudlelwano obuqondile phakathi komfutho we-nozzle, ingcindezi yomugqa kanye nomfutho womjovo.
Emshinini wokujova isikulufu, umfutho we-nozzle cishe ungaphansi ngo-10 % kunengcindezi yomjovo.Emshinini wokubumba umjovo we-piston, ukulahlekelwa kwengcindezi kungafinyelela cishe ku-10%.Ukulahlekelwa kwengcindezi kungaba ngamaphesenti angu-50 ngomshini wokubumba umjovo wepiston.
Isivinini sokujova
Lokhu kubhekisela kusivinini sokugcwalisa sokufa lapho isikulufu sisetshenziswa njenge-punch.Izinga eliphezulu lokudubula kufanele lisetshenziswe ekubunjweni komjovo wemikhiqizo enezindonga ezincane, ukuze iglue encibilikayo igcwalise isikhunta ngokuphelele ngaphambi kokuqina ukuze kukhiqizwe indawo ebushelelezi.Uchungechunge lwamazinga okudubula ahleliwe asetshenziselwa ukugwema amaphutha afana nomjovo noma ukubanjwa kwegesi.Umjovo ungenziwa nge-open-loop noma uhlelo lokulawula oluvaliwe.
Kungakhathaliseki izinga lomjovo elisetshenzisiwe, inani lejubane kufanele lirekhodwe eshidini lokurekhoda kanye nesikhathi somjovo, okuyisikhathi esidingekayo ukuze isikhunta sifinyelele ukucindezela komjovo wokuqala okunqunywe kusengaphambili, njengengxenye yesikhathi sokuqhunyiswa kwesikulufu.
Isikhathi sokuthumela: 17-12-21