Ha lienjiniere li hlakisa a feme ea tšepe ea tšepe bakeng sa likarolo tsa bohlokoa tsa thōmo - li-shafts tsa setsi sa pompo tse ka tlas'a 300 bar, li-nozzles tsa cobalt-alloy libakeng tsa khase e bolila, kapa li-winch rollers likoloing tsa boenjiniere tse lebōpong la leoatle - ha li hloke machining feela. Ba hloka bonnete ba metallurgical, pheta-pheta, le mamello ea zero bakeng sa ho hoholeha ha microstructural ho pholletsa le lihlopha.
Re bone merero e mengata haholo e liehile-eseng ka mefokolo ea moralo, empa ke likheo tsa bafani ba ho sebetsana le alloy. Moreki o kile a re romella setšoantšo sa pompo ea cobalt ea AMS 5387 e nang le mehala ea GD&T bakeng sa ± 0.005 mm cylindricity holim'a bore ea 120 mm. Morekisi oa bona oa pele o e qotsitse-empa a sitoa ho ts'oara ho khopamisoa ha mocheso ka tlase ho 0.02 mm. Karolo e fetisitse CMM ka mocheso oa kamore, e hlolehile ho etsa liteko tse sebetsang nakong ea mocheso o sebetsang. Seo ha se bothata ba mochini. Ke ho hloleha ha thepa-mokhoa-ho kopanya.
Hobaneng bokhoni ba lintho tse bonahalang bo arola baetsi ba shaft ba nepahetseng ho tsoa mabenkeleng a kakaretso a mesebetsi
Li-alloys tsa cobalt-nickel tse kang T800 le AMS 5387 ha li "thata ho mochine" hobane li brittle. Li thata hobane microstructure ea tsona e hanana le ho nolofala ha mocheso-'me botsitso bo tšoanang bo etsa hore ba rate ho sebetsa ka thata, ho hahoa, le karohano ea mekhahlelo e ka tlas'a lefatše haeba litekanyo tsa ho pholisa kapa linako tsa ho imolla khatello ea kelello li kheloha esita le 15 ° C.
Ho QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., shaft e 'ngoe le e 'ngoe ea cobalt-alloy e qala ka billet e netefalitsoeng e ka latelloang ho latela litlaleho tsa tlhahlobo ea leloala-eseng feela kereiti, empa boleng ba khabone, boron le silicon ba nnete ka har'a ± 0.02%. Re netefatsa chemistry ea ho qhibiliha le barekisi ba rona ba thepa pele re e etsa. Hobaneng? Hobane boron e feteletseng ea 0.003% ho AMS 5387 e eketsa kotsi ea ho phatloha ho chesang nakong ea tlhahiso ea matsete ka 40%, ho latela data ea ASTM E1268 eo re e netefalitseng ka 2023.
Sena ha se khopolo-taba. Selemong se fetileng, European hydraulic OEM e ne e hloka matlo a silindara a pompo ea piston ea bophara ba limilimithara tse 220 tse nang le li-splines tse kenyelitsoeng ka hare. CNC e tloaelehileng e fetolang matšoao a ho qoqa ka ho le letšehali a ileng a jala mapheo a mokhathala ho 12,000 PSI cycling. Re fetohetse ho ts'ebetso e nyalisitsoeng: matsete a pota-potileng sebopeho + se tlositseng khatello ea maikutlo + se entsoe ka mochini oa 5-axis tse tšekaletseng tse nang le damping ea nako ea nnete. Sephetho: bokaholimo ba Ra ≤0.4 µm, spline concentricity e tšoaretsoe ho 0.008 mm ho feta 300 mm bolelele-esita le kamora lihora tse 200 tsa tlhahlobo ea setlolo sa letsoai.
Khokahano e otlolohileng ha se buzzword - ke eona feela tsela ea ho laola botšepehi ba shaft
Barekisi ba bangata ba "precision shaft" ba fana ka lisebelisoa tsa kantle, kalafo ea mocheso, kapa ho qeta. Seo se senya boikarabello. Haeba mochini oa winch center shaft o hloleha ho netefatsa boima ba 'mele ka mor'a ho chesa mocheso, sesosa ke mang? The foundry? Mokhanni oa sebōpi? Setsebi sa machini se tlositseng lera la decarburized?
QINGDAO QIANGSENYUAN e sebetsa setsing se le seng se lumellanang le ISO moo ho lahlela, CNC ea li-multi-axis, phekolo ea mocheso, le ho qeta holim'a metsi ho etsahala tlas'a marulelo a le mong-le tsamaiso e le 'ngoe ea boleng. Shaft e 'ngoe le e' ngoe e fumana:
- Netefatso ea thepa e tala ka OES spectrometry (eseng li-certs feela)
- E ntse e tsoela pele ho hlahloba CMM ka mekhahlelo e meraro: pre-heat-treat, post-heat-treat, post-fining.
- Tlhahlobo ea ho qetela e sebelisang profilometry ea optical bakeng sa libaka tsa bohlokoa tsa ho tiisa
- Ts'oarelo e felletseng ea lotho: ID e qhibilihisitsoeng, log ea sebōpi, data ea lisebelisoa, ID ea opareitara
Ha re kopane feela le ASME B16.5 kapa ISO 2768-mK. Re etsa 'mapa kamoo mohato o mong le o mong oa ts'ebetso o amang ts'ebetso ea ho qetela. Mohlala: metheo ea pompo ea tšepe e entsoeng ka lehlabathe e hloka ho pholisa ho laoloang ho qoba ho kopana ha maqhutsu a graphite. Re beha leihlo li-curve tsa ho pholisa ka li-thermocouples tse kentsoeng - eseng feela mocheso o teng. Ke ka lebaka leo matlo a rona a EN-GJS-400-15 a lulang a fumana matla a 420 MPa, eseng bonyane ba 370 MPa.
Phano ea 'nete ea lefats'e e bolela ho rarolla se seng setšoantšong
K'hamphani ea litšebeletso tsa oli ea Amerika Leboea e re romelletse setšoantšo se sa tloaelehang sa shaft bakeng sa winche e phahameng ea torque e ka tlas'a leoatle. Ha ho na lintho tse bonahalang - "e sa khone ho bola, 150 kN static load." Re tsamaisitse mofuta oa kutu khahlanong le tikoloho ea NACE MR0175/ISO 15156, maemo a bophelo a mokhathala a fapaneng a UNS S32750 vs. Inconel 718, 'me re sisinya UNS S32760 e nang le duplex anneal + shot peening. Ba pholositse 28% vs. nickel alloy cost-ntle le ho senya khanyetso ea SCC ea chloride.
Ena ke tloaelo e tloaelehileng—eseng mokhelo. Sehlopha sa rona sa boenjiniere se lula se tšoaea likotsi tsa ts'ebetso nakong ea tlhahlobo ea litšoantšo: likarolo tse tšesaane tse nang le mabota a tšesaane a tloaetseng ho khopama, likarolo tse mamellang ka thata tse hlokang lisebelisoa tse sa tloaheleheng, mekotla ea GD&T e hanyetsanang le Cpk e ka finyelloang. Re khutlisetsa maikutlo ka lihora tse 48-eseng "re tla e qotsa," empa "mona ke kamoo re ka e sebetsang kateng, 'me mona ke khoebo ea nako ea ho etella pele le litšenyehelo."
Haeba u hloka a feme ea tšepe ea tšepe e tšoarang valve ea hau ea khatello ea matlo joaloka karolo ea bohlokoa ea sefofane-eseng karolo ea thepa-u batla taeo e netefalitsoeng ea alloy, taolo ea ts'ebetso e koetsoeng, le kahlolo ea boenjiniere e buang ka tšepe e hlakileng, GD & T, le mekhoa ea ho hlōleha ha tšimo. Eseng feela bokhoni ba CNC. Eseng feela ho phahamisa molumo. Ho nepahala, ho tiisitsoe 'neteng ea lintho tse bonahalang.
