Ngokukhula kwesidingo semakethe semikhiqizo yepulasitiki, ukuthuthukiswa kwemishini yokubumba umjovo nakho kuya ngokushesha futhi ngokushesha. Imishini yokubumba imijovo yakuqala yayisebenza ngamanzi, futhi eminyakeni yamuva nje kuye kwaba nemishini yokubumba esebenza ngogesi enembayo.
Ngemuva kokuthi i-China ijoyine i-World Trade Organisation (WTO), imboni yokukhiqiza imishini yangaphandle yasheshisa ukudluliselwa kwayo eChina. Ezinye izinkampani zemishini yokubumba umjovo ezaziwa kakhulu emhlabeni, njenge-Germany Demark, Krupp, Badenfeld, kanye ne-Sumitomo Heavy Industries, ziye zahlala ngokulandelana “e-China, ezinye seziphinde zamisa izikhungo zobuchwepheshe. Ukungena kwabakhiqizi bomshini wokubumba umjovo wangaphandle kulethe ubungqabavu embonini yomshini wokubumba umjovo waseShayina, futhi ngasikhathi sinye, kugcwalise amathuba nezinselelo kubakhiqizi bemishini yokubumba umjovo waseShayina.
Njengamanje, imikhiqizo yomshini wokubumba umjovo waseChina igxile kakhulu kumishini emincane nephakathi nendawo. Ngeminyaka yawo-1980 kanye nawo-1990, ukuhlinzekwa kwemikhiqizo esezingeni eliphansi kwadlula isidingo, amandla okukhiqiza ayedlulele, futhi ukusebenza kahle kwenkampani kwehla. Ezinye izinhlobo, ikakhulukazi ezinembayo kakhulu imikhiqizo yezinga eliphezulu, azinalutho futhi zisadinga ukungeniswa kwamanye amazwe. Ngokwezibalo zango-2001, iShayina yangenisa kwamanye amazwe imishini yokubumba imijovo isebenzisa imali yangaphandle engamadola ayizigidi eziyizinkulungwane eziyi-1.12, kuyilapho imishini yokubumba imijovo yokuthumela ngaphandle yazuza kuphela izigidi eziyi-130 zamadola aseMelika, futhi ukuthengwa kwamanye amazwe kukhulu kakhulu kunokuthunyelwa kwamanye amazwe.
Umshini wokubumba umjovo we-hydraulic unezinzuzo eziningi eziyingqayizivele ekubumbeni ukunemba kanye nokubunjwa okuyinkimbinkimbi. Iguqukile isuka ohlotsheni lwendabuko olugcwele uketshezi lwe-single-cylinder kanye ne-multi-cylinder kuya ohlotsheni lwamanje lokucindezela okuqondile kwamapuleti amabili, lapho amapuleti amabili acindezelwa khona ngokuqondile. Omele kakhulu, kodwa ubuchwepheshe bokulawula bunzima, ukunemba kwemishini kuphezulu, futhi ubuchwepheshe be-hydraulic bunzima ukubuqonda.
Umshini wokubumba umjovo kagesi wonke unochungechunge lwezinzuzo, ikakhulukazi mayelana nokuvikelwa kwemvelo nokonga amandla. Ngenxa yokunemba okuphezulu kokulawulwa komjovo we-servo motor, ijubane lokujikeleza libuye lizinzile, futhi lingalungiswa ngezigaba eziningi. Kodwa-ke, imishini yokubumba umjovo kagesi wonke ayihlali isikhathi eside njengemishini yokubumba umjovo we-hydraulic egcwele, kuyilapho imishini yokubumba umjovo we-hydraulic egcwele kufanele isebenzise ama-servo valves ane-valve-loop control ukuqinisekisa ukunemba, futhi ama-servo valves ayabiza futhi ayabiza.
Umshini wokubumba umjovo kagesi-hydraulic uwumshini omusha wokubumba umjovo ohlanganisa i-hydraulic kanye nedrayivu kagesi. Ihlanganisa ukusebenza okuphezulu kanye nezinzuzo zokonga amandla kagesi wonke womshini wokubumba umjovo we-hydraulic ogcwele. Lo mshini wokubumba umjovo ohlangene kagesi-hydraulic Uphenduke isiqondiso sokuthuthukiswa kobuchwepheshe bomshini wokubumba umjovo. Imboni yokubumba umjovo ibhekene nethuba lokuthuthuka ngokushesha. Kodwa-ke, esakhiweni sezindleko zemikhiqizo yokubumba umjovo, izindleko zikagesi zibalelwa engxenyeni enkulu. Ngokwezidingo zenqubo yemishini yomshini wokubumba umjovo, i-injection motor pump motor isebenzisa ingxenye enkulu yengqikithi yamandla asetshenziswayo. 50% -65%, ngakho-ke inamandla amakhulu okonga amandla. Ukuklama nokukhiqiza isizukulwane esisha semishini yokubumba umjovo “yonga amandla” sekuyisidingo esiphuthumayo sokunaka nokuxazulula izinkinga.
Isikhathi sokuthumela: Oct-19-2022