Litharollo tsa feme e tiileng ea tšepe li koala lekhalo lipakeng tsa ho lahla le ho qhekella - ho fana ka likarolo tsa sebopeho se haufi-ufi tse nang le thepa e phahameng ea mochini, porosity e fokotsehileng, le taolo e matla haholoanyane. Empa ha se setsi se seng le se seng se ka hlahisang likarolo tsa li-valve tsa hydraulic, matlo a pompo ea khatello e phahameng, kapa li-nozzles tsa cobalt-alloy tse pholohang ho 200+ bar cycling le media abrasive fluid. Re bone merero e mengata haholo e ema sethaleng sa mohlala - eseng ka lebaka la moralo o fosahetseng, empa hobane semi solid metal lahla feme e ne e se na taeo ea metallurgical, netefatso ea ts'ebetso, kapa ho kopanya mekhoa e nyalisitsoeng.
Hobaneng ha "Semi-Solid Casting" e hloleha - le se hlileng se sebetsang
Boholo ba ho hloleha ho latela lisosa tse tharo: taolo e sa tsitsang ea mocheso oa slurry nakong ea rheocasting, ntlafatso e sa lekaneng ea lijo-thollo ka har'a semi-solid slurry, kapa ho se lumellane lipakeng tsa puseletso ea shrinkage le meputso e tlase ea machining ea CNC. Setsing sa rona se Qingdao, re lekanya slurry viscosity ka nako ea 'nete re sebelisa li-rheometers tse potolohang - eseng feela li-thermocouples tse behiloeng. Re fumane hore ho kheloha ha ± 1.5 ° C ka holimo ho 582 ° C ho AMS 5387 cobalt alloy slurry ho eketsa micro-shrinkage ka 23% maboteng a li-cylinder a teteaneng ho feta 12 mm. Ke ka lebaka leo re kentseng litšoantšo tse futhumatsang ka kotloloho ka har'a letsoho la sethunya le ho fetola lebelo la ente ka matla ho latela karolo ea geometry.
Habohlokoa le ho feta, ho latsoa ha semi-solid ha se ntho e ikemetseng. Ke node ketane ea tlhahiso e nepahetseng. Mohaho oa pompo ea piston o entsoeng ka motsoako o tiileng oa T800 oa cobalt o tlameha ho boloka microstructure e tsitsitseng ka phekolo ea mocheso e fokotsang khatello ea kelello * pele ho * li-axis tse hlano tsa li-contours tsa li-valve port. Haeba ntlo ea ho lahla e sa laole litekanyetso tsa ho pholile ka hare ho ± 3 ° C / min ho tloha ho 1050 ° C ho ea ho 600 ° C-kapa haeba e haelloa ke GD & T e amanang le CMM ka li-castings tse tala-karolo ea ho qetela e tla hlōleha tlhahlobo ea khatello ea ts'ebetso. Re etsa ka bobeli. Sehlopha se seng le se seng se kenyeletsa tlhahlobo ea spectrographic, tekanyo ea dendrite arm spacing (DAS) tlas'a SEM, le tlaleho e feletseng ea tlaleho ea mocheso.
Tse 'Nè Tse sa Buisanoeng Tsa Likopo Tsa Maiketsetso
Feme ea 'nete ea semi solid metal casting e tlameha ho fana ka ho feta tšepe e nang le sebopeho. E tlameha ho netefatsa ts'ebetso tlas'a litlhaloso. Mona ke seo re se netefatsang pele re qotsa mosebetsi ofe kapa ofe:
- Taolo ea leloko la lintho tse bonahalang: Li-ingots tse tala tsa cobalt-nickel tse nkiloeng feela ho tloha ho limilo tse tiisitsoeng ho ASTM B575 le AMS 5737-e nang le litlaleho tsa tlhahlobo ea leloala tse hlahlobiloeng khahlanong le spectrography e kenang
- metrology e kopantsoeng le ts'ebetso: Tlhahlobo ea laser ea in-line ea mold cavity pre-fill, post-ejection CMM tlhahlobo ea libaka tsa bohlokoa tsa datum, le 'mapa oa optical contour oa litemana tsa phallo ea ka hare pele ho mochine.
- Hybrid tolerance stacking: Re bala likhakanyo tse akaretsang tsa liphoso ho nyenyefala, ho khopamisoa ha mocheso, le ho kheloha tsela ea li-axis tse ngata—eseng feela ho sebelisa meputso e akaretsang ea ±0.3 mm.
- Protocol e sebetsang ea netefatso: Ntlo e 'ngoe le e' ngoe ea li-valve tsa khatello e etsa liteko tsa ho lutla ha helium ka 1.5 × khatello ea ho sebetsa, ebe ho pepeseha ha letsoai-spray ho ASTM B117 bakeng sa lihora tse 96 pele ho paka ea ho qetela.
Likhoebo tsa 'Nete tsa Lefatše tseo U Lokelang ho li Amohela
Baenjineri ba bang ba nka hore ho lahla ha semi-solid ho fokotsa litšenyehelo. Ha ho joalo-ntle le haeba u shebane le malapa a itseng. Bakeng sa li-geometri tse nang le mabota a masesaane, a rarahaneng joalo ka li-winch center shaft rollers tse nang le meno a kopaneng a spline le li-grooves tsa oli, semi-solid e fokotsa nako ea ho sebetsa ka 40% mme e ntlafatsa bophelo ba mokhathala ka 2.7 × khahlano le lehlabathe le lekanang. Empa bakeng sa li-flange tse bonolo tse ka tlase ho 50 mm thick? Ts'ebetso e tloaelehileng ea matsete hangata e fana ka ROI e betere.
Haufinyane tjena re sebelitse le European hydraulic OEM e neng e tsitlallela ho tiea ka semi-solid bakeng sa motheo oa pompo oa bophara ba 320 mm. Ketsiso ea bona e boletse esale pele leqephe la ntoa la 0.12 mm. Leqephe la ntoa la 'nete e ne e le 0.28 mm - hobane mohlala oa bona o ne o sa ikarabelle bakeng sa phetoho ea mantlha nakong ea ente ea slurry ka har'a hlobo ea likhetla tsa ceramic. Re ile ra etsa liteko tsa 'mele ka li-gauge tse kentsoeng, ra lokisa core pin, ra ba ra kenya li-block blocks tsa lehae. Leqephe la ho qetela la ntoa le theohetse ho 0.14 mm. Re ithuta’ng? Ketsiso e thusa - empa ha feela e thehiloe boitšoarong bo lekantsoeng ba mocheso.
Seo U ka se Batlang Fekthering ea Hao ea Semi Solid Metal Casting
Botsa lipotso tsena pele u saena NDA:
- Na o ka mponts'a litifikeiti tsa hau tsa ho qetela tse tharo tsa AMS 5387-ho kenyeletsoa boleng ba DAS le limmapa tsa karohano tsa interdendritic?
- A na u etsa tlhahlobo ea ultrasonic ea in-process on castings e tenya ho feta 25 mm — kapa tlhahlobo ea ho qetela feela?
- U lefella joang ho se lumellane ha katoloso ea mocheso pakeng tsa li-casting tsa T800 le tse kentsoeng ka tšepe e sa hloekang nakong ea kopano?
- Kakaretso ea sekhahla sa hau sa ho pasa sengoloa sa pele ho likarolo tsa GD&T se hloka ho mamella maemo a tlase ho 0.05 mm?
Haeba likarabo li sa hlaka, li liehile, kapa li bua ka "tloaelo e tloaelehileng ea indasteri," itsamaele. Ho nepahala ha ho buisanoe - ho entsoe, ho lekanngoa, 'me ho ngotsoe mohatong o mong le o mong.
QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. e sebetsa fektheri ea ho lahla ea tšepe e tiileng moo likarolo tsa pompo ea cobalt-alloy li kopanang le tšebetso e netefalitsoeng ea ISO 9001, eseng lisebelisoa tsa ho lahla feela. Ha re arohane ho lahlela ho tloha ho machining-re li fumana hammoho. Ha re nke lintlha tsa thepa e le lipampiri-re li netefatsa ka mocheso o mong le o mong. 'Me ha re tšepise "ho nepahala." Re e paka-karolo ka karolo, batch ka batch, moreki ka moreki. Hobane lits'ebetsong tsa hydraulic, li-valve tsa oli le khase, le likoloi tsa likoloi tsa boenjiniere, ha ho na moeli oa ho lekanya. Ho na le ts'ebetso feela-kapa ho hloleha.
