Ha lienjineri li hlakisa likere tsa lipompo tsa haeteroliki, li-winch drive, kapa li-valve tse nang le khatello e phahameng, ke ka seoelo li qalang ka metallurgy ea phofo. Ba bangata ba fihla pele bakeng sa likheo tsa tšepe tse ferekaneng kapa tse entsoeng ka mochini oa CNC-ho fihlela botsitso bo boholo, ho hanyetsa, le litšenyehelo tse felletseng ka karolo e 'ngoe li qala ho fetola lipalo. Ke hona moo ba inehetseng feme ea lisebelisoa tsa phofo ea metallurgy e khaotsa ho ba khetho e 'ngoe-'me e fetoha khetho feela e utloahalang.
Ho QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., re bone phetoho ena ka mahlo ho pholletsa le lik'honthinente tse tharo. Pompo ea Amerika Leboea ea OEM e fokotsitse maqhubu a phetoho ea gear ka 40% kamora ho tloha ho tšepe e sirelelitsoeng ho ea ho likere tsa AMS 5387 cobalt alloy PM matlong a tsona a pompo ea piston e phahameng. Mofani oa likoloi tsa boenjiniere oa Europe o ile a fokotsa nako ea ho etella pele ka matsatsi a 11 - eseng ka ho potlakisa mochini, empa ka ho felisa ts'ebetso e mehlano ea bobeli ka ho felletseng. Tsena e ne e se melemo ea khopolo-taba. Li ne li tsoa ho laola li-gradients tse ka hare ho ± 0.02 g/cm³, tse nang le mamello ea bophara ba bophahamo ho ± 0.015 mm ho li-gear tsa 16-module spur, le ho fihlela boima bo holimo Ra ≤ 0.8 µm—joalo ka-sintered.
Ho nepahala ha 'nete ho metallurgy ea phofo ha se taba ea ho hatella lerole la tšepe le ho e bitsa e felile. E qala ka setifikeiti sa thepa e tala: sehlopha se seng le se seng sa T800 cobalt-based powder se na le traceability e felletseng ho parameter ea atomization, litaba tsa oksijene (≤120 ppm), le kabo ea boholo ba likaroloana (D50 = 18-22 µm). Re hana liphofshoana ka ntle ho fensetere eo—leha morekisi a fana ka theolelo ea 15%. Hobaneng? Hobane phapang ea 0.3% ea letsoalo motsong oa gear e baka phokotseho ea 22% bophelong ba mokhathala o kobehileng tlas'a cyclic load. Re netefatsa seo letsatsi le letsatsi re sebelisa molao-motheo oa Archimedes le micro-CT scanning ho sampole cores - eseng feela likarolong tsa ho qetela, empa maemong a matala, a sootho le a sintered.
Mokatong oa rona oa tlhahiso o kopanya mekhoa e meraro eo ho sa buisanoeng ka eona boholo ba mabenkele a PM a nkang e le lits'ebeletso tse arohaneng:
- E laoloang moea sintering ka taolo e nepahetseng ea phoka (−40 ° C ho -25 ° C) le metsoako ea naetrojene / haedrojene - e bohlokoa bakeng sa ho boloka ho hasana ha carbide ka li-alloys tsa cobalt ntle le decarburization
- In-die coining e sebelisoa nakong ea ejection, eseng joalo ka ts'ebetso ea morao-rao, ho fana ka taolo ea ± 0.008 mm ho libore ntle le ho khutlisa
- Phekolo ea mocheso e sebetsang e kopantsoe ka ho toba ka mor'a ho sintering: tharollo ea annealing ho 1180 ° C + ho tima ka potlako bakeng sa AMS 5387, e lateloa ke botsofali ho 845 ° C-ho fihlela Rockwell C 42-46 ha u ntse u boloka geometry ea meno ea gear.
Ba bang ba ka 'na ba pheha khang ea hore likere tse entsoeng ka mochini oa CNC li fana ka sephetho se holimo holimo. 'Nete-bakeng sa li-geometri tse bonolo. Empa ha moreki a kopa 22-tooth, 3.5-module helical gear e nang le 25 ° helix angle, spline ka hare, le "press-fit bore" - e entsoeng ho tloha bareng e tiileng ea T800 - lipalo lia fetoha. Kotulo ea thepa e theohela ho 38%. Nako ea potoloho e feta metsotso e 92. Lisebelisoa tsa ho roala li-spikes ka mor'a likarolo tse 17. Ts'ebetso ea rona ea PM e fana ka lisebelisoa tse tšoanang nakong e le 'ngoe ea ho kopanya, ka 91% ea tšebeliso ea thepa, nako ea metsotso e 14, le ho roala lisebelisoa tsa zero lipakeng tsa lihlopha. Lisebelisoa li kopana le AGMA Q12 le ISO 1328-1 Sehlopha sa 7-ntle le ho sila.
Ha re sutumelle metallurgy ea phofo moo e sa lokelang. Haeba ts'ebeliso ea hau e hloka hore ho be le mokokotlo o matla ho feta 0.02 mm mochesong oa ts'ebetso, kapa haeba sekhahla sa mojaro oa hau se kenyelletsa maqhubu a ts'oenyehileng a fetang 3× torque e lekantsoeng, re tla u joetsa esale pele: "Fored + finish-ground" e ntse e le tsela ea hau e ntle ka ho fetisisa. Empa bakeng sa lebelo le mahareng (500–10,000 pcs/selemo), tikoloho e apereng liaparo tse phahameng (≥200 MPa khatello ea maikutlo), kapa litsamaiso moo boima, lerata, kapa ho rarahana ha kopano—PM e fana ka ROI e lekanyang. Moetsi e mong oa thepa ea lebaleng la oli ea Asia Boroa-bochabela o ile a nkela lijari tsa lisebelisoa tse cheselitsoeng tse 12 sebaka ka likopano tsa PM. Boima ba 'mele bo theohile ka 37%. Mosebetsi oa kopano o ile oa theoha ho tloha metsotso ea 42 ho ea ho 9. 'Me boholo ba ho sisinyeha ho 1800 rpm bo fokotsehile ka 63%-e lekanyelitsoeng sebakeng se nang le laser Doppler vibrometry.
Se arolang ea nang le bokhoni feme ea lisebelisoa tsa phofo ea metallurgy ho tsoa lebenkeleng la khatiso ea thepa ha se bokhoni - ke tlhahlobo e ikhethileng ea ho hloleha. Ha lisebelisoa tsa moreki li hloleha pele ho nako pompong ea leoatle, ha rea ka ra e nkela sebaka feela. Re ile ra tšela karolo e hlōlehileng, lihlopha tsa porosity tse entsoeng ka 'mapa khahlanong le li-contours tsa khatello ea kelello, li-correlated oxide inclusions le li-logs tsa sepakapaka sa sintering, le ho hlophisa bocha mokhoa oa ho ntša metsi. Sephetho: ho hloleha hoa lebala ho feta likhoeli tse 18 le lihora tse 47,000 tsa ts'ebetso.
QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. e sebetsa ho tloha Qingdao-eseng e le setsi sa sepheo se akaretsang, empa e le molekane ea nepahetseng bakeng sa litsamaiso tseo likere e seng likarolo tse tsamaeang feela. Ke lintho tse thibelang khatello ea maikutlo. Li-ankora tsa phetiso ea torque. Maqhubu a mahlonoko a mokhathala. Re li etsa lienjiniere ka tsela eo-ho tloha ho khetho ea phofo ka ho netefatsa ts'ebetso. Setsi sa rona se na le litifikeiti tsa ISO 9001: 2015 le AS9100D, empa taba ea bohlokoa le ho feta ke hore na re li sebelisa joang: likepe tse ling le tse ling tsa likepe tse nang le litlaleho tse felletseng, lits'oants'o tse thata, lintlha tse thata ho pholletsa le leno le motso, le li-micrograph tsa metallurgic tsa likarolo tsa bohlokoa.
Bokamoso ba ho etsa lisebelisoa tse nepahetseng haholo ha bo khetholle pakeng tsa PM le machining. E ba kopanya ka bohlale-ho sebelisa PM bakeng sa geometry e haufi le marang-rang le botšepehi ba sebopeho, ebe o sebelisa CNC e fokolang, e lebisitsoeng ho qetela feela moo libaka tse sebetsang li e batlang. Mokhoa ona oa lebasetere - synergy ea ho etsa mochini - ke moo maikutlo a rona a R&D a leng teng hona joale. Eseng ho khutlisa lits'ebetso, empa ho felisa ho sekisetsa.
