Likarolo tse sebetsang hantle tsa indasteri ha li hlolehe ho tsoa moralong o mobe - li hloleha ha boits'oaro ba lintho tse bonahalang, taolo ea boholo, le litsela tsa mojaro o sebetsang li sa tsamaee hantle. Ke ka lebaka leo li-OEM tse etellang pele tsa hydraulic system, tse kopanyang lisebelisoa tsa lebaleng la oli, le baetsi ba lipompo tse nepahetseng ba ntseng ba feta ho feta meralo e tloaelehileng kapa machining a bar-stock bakeng sa feme ea tšepe ea phofo litharollo-haholo-holo ha likarolo li hloka> 1200 MPa matla a ho tsitsa, ho roala ho hanyetsa ho 500 ° C, kapa zero porosity libakeng tse mahlonoko tsa khatello.
Re e bone ka mahlo a rona: sehahi sa pompo sa Europe se ile sa nkela matlo a li-cylinder a lehlabathe ka tšepe e entsoeng ka PM-4605-'me a khaola ho hlōleha ha masimo ka 73% ho feta likhoeli tse 18. Hobaneng? Eseng hobane metallurgy ea phofo e "ncha," empa hobane e fana ka ho tšoana ha microstructural ha ho mokhoa o thehiloeng ho ingot o ka bapisoang. Meeli ea lijo-thollo e lula e le ntle ebile e le isotropic. Kabo ea Carbide e lula e laoloa. Le ho honyela? E ka tsebahatsoa esale pele ka har'a ± 0.02 mm-esita le matlong a 320-mm-diameter a nang le likanale tse futhumatsang ka hare le 0.8-µm Ra top finishes.
Boemo boo ba ho tsitsisa bo batla ho fetang feela sebōpi sa khatiso le sinter. E hloka ho kopanngoa ka mahlakoreng ka mahlakoreng a mararo ao ho seng a ka buisanoang ka 'ona: phofo e tala e tiisitsoeng, taolo e koetsoeng ea thermal-mechanical process control, le netefatso e tšehetsoeng ke metrology-eseng feela tlhahlobo ea ho qetela, empa mohatong o mong le o mong ho tloha ho 'mapa o motala oa "green density" ho ea ho HIP ka mor'a phekolo. Ho QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., sena ha se khopolo-taba. Setsi sa bona se lumellanang le ISO se Qingdao se tsamaisa tlhahiso ea tšepe ea PM ea potoloho e felletseng-ho tloha ho phofshoana e entsoeng ka khase e entsoeng ka atomized (mohlala, PH13-8Mo, Custom 465®, le AMS 5387-compatible cobalt-steel hybrids) ka ho kopanya mofuthu, vacuum sintering le ho hatisa ka tlas'a CMPHI marulelo.
Mona ke se arohanyang mokhoa oa bona le mabenkele a tloaelehileng a "PM-caable":
- Ho lateloa ha lintho tse bonahalang ho qala pele phofo e kena ka har'a hopper: Sehlopha se seng le se seng se na le CoA e felletseng e nang le tlhahlobo ea OES + LECO, hammoho le netefatso ea SEM/EDS ea litaba tsa oxide le kabo ea boholo ba karolo (D10/D50/D90 e kentsoeng ASTM B822).
- Botšepehi ba karolo e tala bo lekantsoe-ha bo nahane: In-line CT scanning e netefatsa density gradients pele ho sintering; liphapang > ± 0.05 g/cm³ li etsa hore ho be le tokiso ea othomathike, eseng ho sebetsa bocha.
- Sinter-HIP ha e na tatellano - ke synergistic: Sebōpi sa bona sa likamore tse peli se sebetsa tlas'a khatello ea karolo ea naetrojene e laoloang nakong ea sintering, ebe e fetela ka ho toba ho argon HIP ho 1150 ° C/150 MPa-ho felisa kotsi ea oxidation le ho nolofalletsa matla a haufi-ufi (99.8% TD) ho li-geometri tse rarahaneng joaloka lihlopha tsa li-valve tse ngata.
- Botsitso ba dimensional bo entsoe - ha bo lefelloe: Ba sebelisa mokhoa oa ho imolla khatello ea maikutlo *kamora* HIP empa *pele* ba qeta ho etsa mochini, ba sebelisa liprofaele tsa mocheso oa nako tse netefalitsoeng khahlano le 'mapa o setseng oa khatello ea maikutlo (XRD + ho phunya masoba). Sephetho: warpage e lula e le ka tlas'a 0.015 mm holim'a matsoho a 200-mm-bolelele ba piston rod-esita le ka mor'a 3-axis milling ea li-grooves tse koalang le likou tsa mahlaseli.
Ba bang ba ka 'na ba pheha khang ea hore tšepe ea PM e bitsa chelete e ngata pele ho feta ho kenya chelete. Empa ha re latela litšenyehelo tse felletseng tsa ho ba beng ba Tier-1 hydraulic valve housing (ASTM F2997 Grade 3), tsela ea PM e ile ea fana ka 22% ea litšenyehelo tse tlaase tsa bophelo bohle-eseng ho tloha thepa e theko e tlaase, empa ho tloha lihlahisoa tse felisitsoeng (kotulo ea ho lahlela: 68%; tlhahiso ea PM: 94%), e fokotsehile ts'ebetso ea bobeli (ha ho na ho tlosoa ha heke, ha ho na ts'ebetso ea ts'ebetso ea 8), ha ho na ts'ebetso ea ts'ebetso ea 8 ho ea ho TB. Lihora tse 14,600 litsing tsa liteko tsa libaesekele tse phahameng).
Bothata ba 'nete ha se thekenoloji-ke ho sebelisa mokhoa o phollatsi. Re ntse re fumana mehala beke le beke ho tsoa ho lienjineri tse botsang: "Na PM e ka khona ho sebetsana le khatello ea rona ea 1200-bar?" kapa "Na PM e thehiloeng ho T800 e tla boloka boima ka mor'a nitriding?" Karabo e itšetlehile haholo ka phofo le ho feta kamoo ketane eohle e tiileng-ho tloha ho khetho ea phofo ea phofo ho ea ho HIP ramp rate-e tsamaisana le enfelopo ea hau e sebetsang. Mohlala: liphofshoana tse chitja li fana ka bongata bo botala bo betere empa phallo e mpe haholo likarolong tse nang le mabota a masesaane; likaroloana tse sa tloaelehang li ntlafatsa ho tlatsa empa li phahamisa likotsi tsa matla a ho ntša metsi. Ha ho na letlapa le khethehileng. Ho na le 'mapa oa ts'ebetso ea ho tseba maemo feela.
Ke ka lebaka leo QINGDAO QIANGSENYUAN e kenyelletsang litsebi tsa metallurgists - eseng feela barekisi ba thekiso - litlhahlobong tsa pele tsa boenjiniere. Ba tla tšoaea likhohlano tsa GD&T pele lisebelisoa li qala (mohlala, ho hlakisa mamello ea boemo bo holimo sebakeng se sirelelitsoeng ho fapana le li-callouts tse nkang botsitso ba datum). Ba tla khothaletsa tatelano ea kalafo ea mocheso e netefalitsoeng ho tse lekanang le AMS 5387 — eseng li-cycle tsa "stainless steel" tse tloaelehileng. 'Me ba tla arolelana litlaleho tse tala tsa CMM, li-logs tsa HIP, le litšoantšo tsa metallography-eseng feela ho feta / ho hlōleha litempe.
Ha u sheba pele, phetoho e matla ka ho fetisisa ha e lebise tlhokomelong ea phofshoana e ntle kapa likhatello tse phahameng - e lebisitsoe ho bohlale ba tlhahiso e nyalisitsoeng. Ak'u nahane: li-cores tse sintered tse nang le libaka tse tiisitsoeng ka mochini, matlo a hloekisitsoeng a HIP a nang le li-gauge tse kentsoeng, kapa li-bilite tsa PM-forged tse nang le papiso e tiileng ea pele pele o tobetsa konopo. Tsena ha se mehopolo ea R&D. Ke merero e phelang e sebetsang kajeno litsing tse kang QINGDAO QIANGSENYUAN's-moo bokhoni ba fektheri ea tšepe ea phofo bo kopanang le taeo e nepahetseng ea machining, eseng e le litšebeletso tse arohaneng, empa e le sephetho se le seng sa boenjiniere.
Haeba valve ea hau e latelang e nang le khatello e phahameng, winch shaft, kapa ntlo ea pompo e tlameha ho fana ka ts'ebetso e pheta-phetoang - eseng feela ho kopana le setšoantšo - ha u khethe mofani oa thepa. U khetha molekane oa ts'ebetso eo matla a hae a tšepe a lumellanang le boemo ba hau ba ts'ebetso ea kotsi. Seo se qala ka ho botsa lipotso tse nepahetseng-eseng ka theko ka kilogram, empa mabapi le ho pheta-pheta ha boima ba 'mala o motala, lirekoto tsa netefatso ea potoloho ea HIP, le hore na li sebetsana joang le litaba tsa oksijene tse tsoang ka ntle ho tse khethehileng ka lotho ea phofo e kenang. Hobane lits'ebetsong tse bohlokoa haholo, moeli oa phoso o lula ka har'a microstructure - eseng bukana ea papatso.
