Likarolo tsa tšepe tse entsoeng ka tšepe ha li mamelle feela tikoloho ea indasteri e boima-li hlalosa ho ts'epahala ha ho hloleha e se khetho. Re bone li-valve tsa khatello li phunyeha tlas'a libaesekele tse futhumatsang, matlo a pompo ea piston a phunya ka mor'a likhoeli tse 18 tšebeletsong ea oli e lebōpong la leoatle, 'me li-winch center shaft rollers li tšoara li-mid-lift holim'a baepolli ba merafo. Ho hloleha ho hong le ho hong ho khutlela ho sesosa se le seng: boitšoaro ba lintho tse bonahalang bo sa tsamaellaneng le boemo ba khatello ea maikutlo lefatšeng la 'nete. Ke ka lebaka leo likarolo tsa tšepe tse entsoeng ka tšepe - haholo-holo tse etselitsoeng botsitso ba sebopeho, microstructural consistency, le metallurgy e sebetsang - li lula li sa nkeloe sebaka ke litsamaiso tsa hydraulic, likoloi tsa boenjiniere le likopano tsa pompo tsa boleng bo holimo.
Hobaneng ha Likarolo tsa Cast Steel li Feta Mekhoa e Meng ho Likarolo tsa Bohlokoahali tsa Mission
Tšepe ea forged e fana ka matla, empa e haelloa ke geometry e rarahaneng ea ka hare. Meetso e cheselitsoeng e hlahisa libaka tse anngoeng ke mocheso tse senyang bophelo ba mokhathala. Li-billet tse entsoeng ka mochine li senya 60-75% ea lisebelisoa tse tala-'me li loantšana le mefuta e sa tšoaneng ea marako e tloaelehileng 'meleng ea li-valve kapa matlo a li-cylinder. Likarolo tsa tšepe tsa cast li rarolla mefokolo ena e meraro. Ho lahla lehlabathe ho fana ka libopeho tse haufi-ufi bakeng sa likarolo tse kholo, tse teteaneng tse kang metheo ea pompo; ho etsa matsete ho fihlela mamello ea ± 0.05 mm ho li-nozzle tsa alloy tsa cobalt. Habohlokoa, ts'ebetso ea ho tiisa e lumella ho tsamaisana ha sebopeho sa lijo-thollo-haholo-holo ho bohlokoa ho AMS 5387 cobalt alloy 6 likarolo tsa pompo moo ho pholile ka tsela ho thibelang ho phunyeha ha intergranular nakong ea khatello e phahameng ea potoloho.
Re lula re leka likarolo tsa tšepe tse entsoeng ka tšepe khahlano le menyako e meraro ea ts'ebetso: ho hanyetsa mocheso oa mocheso ka holimo ho 400 ° C, sekhahla sa khoholeho se ka tlase ho 0.08 mm/selemo seretse se chesang, le bophelo ba mokhathala bo fetang 10⁷ cycles ho 85% e fana ka khatello ea kelello. Ke feela li-casts tsa ASTM A216 WCB kapa ASTM A351 CF8M tse tšoaroang hantle ka mocheso li kopanang tse tharo kaofela. Mekhoa e meng e theko e tlase e hloleha ka mokhoa o sa lebelloang - eseng qalong, empa ka letšoao la likhoeli tse 14, ha li-microcracks li fihla libakeng tsa shrinkage porosity tse sa bonahaleng tlhahlobong e tloaelehileng ea UT.
Litšenyehelo tse Patehileng tsa Khetho ea Lintho tse "Lekaneng".
Bareki ba bang ba hlakisa "tšepe ea tšepe" ntle le ho hlalosa boemo, kalafo ea mocheso, kapa litlhoko tsa NDT. Re rometse li-unit tse 220 tsa "T800 cobalt-based center shaft roller" ho OEM ea Europe - feela ho fumana tsebiso ea ho hopola libeke tse tšeletseng hamorao. Sesosa sa ho qala? Mofani oa bona o kentse ASTM A487 Grade CA15 bakeng sa T800 ntle le tumello. Ka bobeli ke litšepe tse sa hloekang tsa martensitic-empa CA15 e na le 12% Cr khahlanong le T800's 27% Cr + 5% Mo. Phello: chloride e kenang ka har'a li-gearbox tsa winche tse pholileng ka metsi a leoatle. Corrosion e qalile ka matšoao a machining a siiloeng ke lisebelisoa tsa maemo a tlase, e potlakisoang ke khatello e salang ea khatello ho tsoa ho anneal e sa nepahalang ea kamora ho cheselletsa.
Sena ha se khopolo-taba. Ke ka lebaka leo re qobellang lintlha tse 'ne tse sa buisanoeng: litlaleho tsa teko ea leloala tse tiisitsoeng bakeng sa sebaka se seng le se seng sa mocheso, tlhahlobo e tobileng ea spectrographic holim'a mekoallo e kenang, ketsiso ea solidification pele ho moralo oa hlobo, le 'mapa oa boima ba karolo e felletseng holim'a li-castings tse felileng. Ha ho mokhelo - esita le bakeng sa li-prototypes. Bareki ba tlolang mehato ena ba lefa 3.2 × ho feta ho hloleha ha masimo ho feta ho netefatso ea thepa ea pele.
Taolo ea Tlhahiso e Qalang Pele ho Tšela
Ts'ebetso ea 'nete e qala setsing sa motheo-empa e fetela ka machining, kalafo ea mocheso le ho qeta. Re kopanya ho lahla lehlabathe ka mochini oa CNC oa li-axis tse hlano ho phallo e le 'ngoe ea mosebetsi: li-cast housings li tloha ka ho toba ho tloha ho shakeout ho ea sebōping sa ho fokotsa khatello ea kelello, ebe ho ea ho liilo tse tšekaletseng tse nang le mamello ea ± 0.015 mm mabapi le ho jara bore. Sena se felisa liphoso tsa ho lokisa tse hlokofatsang barekisi ba sebelisang li-casting le machining barekisi ba fapaneng. Bakeng sa likarolo tsa AMS 5387, re etsa annealing ea tharollo ka 1150 ° C e lateloa ke ho tima ka potlako-ebe re phela ka 800 ° C lihora tse 16. Mohato o mong le o mong o kentsoe, o ka latelloa ho ID ea batch le kanale ea thermocouple.
Setsi sa rona se lumellanang le ISO se tsamaisa tlhahlobo ea CMM ho 100% ea likarolo tsa bohlokoa: ho tsepamisa mohopolo oa setulo holim'a li-valve tsa khatello, bore cylindricity holim'a matlo a pompo ea piston, le ho qetela holim'a litsela tsa ho kopana le rolara (Ra ≤ 0.4 µm). Re hana litšoantšo tse bontšang > 0.15% karohano ea carbide ho li-microstructure scans-esita le haeba li feta licheke tsa dimensional. Hobane botšepehi ha bo lekanngoe ka li-microns feela. E lumellana le kabo ea chromium ho pholletsa le moeli o mong le o mong oa lijo-thollo.
Ho Khetha Likarolo Tsa Cast Steel Tse Fanang—Eseng Feela Ho Phatlalatsa—Ts'ebetso
Botsa lipotso tsena pele u phethela morekisi ofe kapa ofe: Na setifikeiti sa bona sa thepa se koahela lik'hemik'hale *le* thepa ea mochini mocheso ka mong? Na ba etsa liteko tsa ultrasonic ho 100% ea matlo a khatello e phahameng-kapa feela lotho ea sampole? Na ba ka fana ka litlaleho tsa microstructure tse bontšang sebaka sa letsoho sa dendrite le tekanyo ea ho kenyelletsa ASTM E45? Haeba karabo ke "che" ho leha e le efe, u reka thepa-eseng inshorense.
QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. e haha lisebelisoa tse entsoeng ka tšepe bakeng sa baenjiniere ba nkileng valve e le 'ngoe ka makhetlo a mararo. Tsepamiso ea rona e lula e le moqotetsane: litsamaiso tsa taolo ea haeteroliki, lisebelisoa tsa phallo ea oli le khase, likarolo tsa koloi ea boenjiniere, le likhokahano tse khethehileng tsa pompo tse hlokang li-alloys tsa cobalt-nickel, lisebelisoa tsa T800-grade, kapa li-castings tse nepahetseng tsa tšepe. Ha re lelekise molumo. Re etsa boenjiniere bo pheta-phetoang - ho pholletsa le lihlopha tse 500, ho pholletsa le nako ea tšebeletso ea lilemo tse 12, ho pholletsa le -40 ° C ho sebelisoa Arctic le 500 ° C mekhoa e mengata ea ho felloa ke metsi.
Likarolo tsa tšepe li atleha ha metallurgy e kopana le thomo. Eseng ha lintlha li shebahala li le ntle pampiring-empa ha karolo e tšoara khatello ho 350 bar ha e ntse e potoloha ka 1,800 rpm, selemo le selemo. Ke maemo ao re a ralang, re a lahlang, a mochini, le ho a tiisa—nako le nako.
