Xuab zeb casting tseem yog cov txheej txheem siv hlau ntau tshaj plaws - suav txog ntau dua 70% ntawm tag nrho cov castings tsim thoob ntiaj teb. Tab sis rau cov neeg tuaj tshiab nkag mus rau hauv qhov chaw tsim khoom, tus naj npawb ntawm sheer qhov chaw ntawm xuab zeb casting tuaj yeem hnov qab. Cov qauv, tiv thaiv thiab rub, sprues, risers, cores, rooj vag - txhua tus ua lub luag haujlwm tsis sib tham txawm tias lub suab nrov los yog seem.
Peb tau pom ntau tus kws tshaj lij thawj zaug ua yuam kev ib txoj kab sib cais thaum lub sij hawm sib dhos pwm. Peb tau saib cov kws tshaj lij kev paub dhau los saib qhov chaw tso tawm - thiab xaus nrog cov hnab ntim roj hauv lub cev hydraulic valve. Ntawm QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., qhov twg peb tsim precision hlau thiab steel castings rau high-pressure twj tso kua mis vaj tse thiab cobalt-alloy nozzles, txhua yam ntawm cov xuab zeb pwm yog xyuas - tsis xav tias. Cia peb rhuav tshem qhov tseem ceeb qhov chaw ntawm xuab zeb casting, tsis yog raws li phau ntawv txhais lus, tab sis raws li cov ntsiab lus ua haujlwm peb vam khom txhua hnub kom xa cov khoom uas tuav 350+ bar siab yam tsis muaj qhov to.
Cov ntsiab lus tseem ceeb koj yuav tsum nkag siab ua ntej nchuav
Cov xuab zeb casting pwm tsis yog pob zeb xwb. Nws yog ib qho kev tsim qauv tsim los tswj cov hlau ntws, pub cov khoom khov kho, thiab tso tawm cov pa phem. Ntawm no yog tsib lub cev tsis sib haum xeeb - thiab yuav ua li cas thaum ib tus ua tsis tiav:
- Qauv: Ib qhov loj me me ntawm qhov kawg-feem ntau yog ua los ntawm ntoo, yas, lossis machined aluminium. Nws qhov tseeb ncaj qha txhais qhov ntev ntev. Peb siv CNC-machined txhuas qauv rau lub tog raj kheej vaj tse vim hais tias lawv tuav ± 0.15 hli tshaj 400 hli ntev-tseem ceeb thaum machining sealing nto tom qab nrum.
- Cope thiab Drag: Sab saum toj (kho) thiab hauv qab (drag) pwm halves. Lawv lub interface yog cov kab sib faib. Misalignment ntawm no tsim flash uas yuav tsum tau nyob rau hauv pem hauv ntej - ib tug kim rework kauj ruam peb zam los ntawm kev siv dowel-pin rau npe rau tag nrho cov tsim pwm.
- Sprue: Txoj kab ntsug los ntawm cov hlau molten nkag mus rau hauv pwm kab noj hniav. nqaim dhau lawm? Turbulence nce oxide tsim. Dav dhau lawm? Kev noj zaub mov tsis zoo. Rau peb T800 cobalt alloy twj tso kua mis, peb loj sprues raws li metallostatic lub taub hau suav - tsis yog txoj cai-ntawm-tus ntiv tes xoo kab kos.
- Riser: Ib tug reservoir tso rau saum toj los yog ib sab ntawm lub casting los pub shrinkage thaum solidification. Ib qho yuam kev: undersizing risers rau tuab seem. Nyob rau hauv ib pawg ntawm piston twj tso kua mis lub tog raj kheej vaj tse, tsis txaus riser ntim ua rau centerline porosity-nrhiav tsuas yog thaum lub sij hawm kuaj ultrasonic. Tam sim no peb simulate solidification nrog MAGMAsoft ua ntej pwm fabrication.
- Core: Ib qho xuab zeb sib cais uas tsim cov kab noj hniav sab hauv-xws li cov kav dej txias lossis lub valve bores. Cores yuav tsum tiv taus metallostatic siab thiab thermal shock. Peb siv cov tshuaj sib txuas nrog silica xuab zeb nrog furan resin rau lub zog tseem ceeb, tom qab ntawd ci ntawm 220 ° C rau 90 feeb. Unbaked cores vau nyob rau hauv 1,450 ° C molten hlau.
Vim li cas Gate Design cais cov Castings ntseeg tau los ntawm cov khoom seem
Cov rooj vag-cov kab txuas txuas mus rau kab noj hniav-tsis tshua muaj kev sib tham, tab sis lawv txiav txim siab txog kev ncaj ncees, cov qauv nplej, thiab kev faib ua ke. Qee tus yuav sib cav qhov chaw qhov rooj yog qhov thib ob rau tus qauv tsim. Txawm li cas los xij, hauv peb qhov kev paub dhau los ntawm AMS 5387 cobalt alloy 6 cov khoom, qhov rooj nkag tsis raug ua rau peb rov ua tsis tiav: txias kaw ze ntawm cov phab ntsa nyias, xuab zeb yaig nyob rau hauv qhov chaw siab tshaj plaws, thiab kev puas tsuaj ntawm cov kab noj hniav nkag.
Peb siv cov hauv qab-qhov rooj rau qhov siab, nyias-walled vaj tse kom txo qis kev kub ntxhov. Rau symmetrical qhov chaw xws li winch center ncej chais, peb siv ntau lub rooj vag radial - kom ntseeg tau tias muaj kev sib sau ua ke thiab kev taw qhia kev ruaj khov rau cov risers. Txhua lub rooj vag hla ntu yog suav nrog Bernoulli txoj cai hloov kho rau cov hlau viscosity thiab kub poob. Qhov ntawd tsis yog txoj kev xav - nws yog li cas peb ua tiav Cpk> 1.33 ntawm cov kab loj loj hla 500+ ntau lawm khiav.
Dab tsi Beginners Overlook: Vents, Parting Sand, thiab Shakeout Timing
Cov qhov cua yog qhov me me-feem ntau 1-2 hli txoj kab uas hla-drilled los ntawm kev tiv thaiv los yog rub kom cua thiab pwm gases khiav dim. Hla lawv, thiab koj tau txais pinholes lossis blowholes. Peb xyaum cov vents manually tom qab pwm los ua ke, muab tso rau ntawm qhov kawg-rau-sau qhov chaw uas pom nyob rau hauv simulation. Tsis muaj automation-vim hais tias cov cuab yeej hnav hloov qhov geometry, thiab qhov cua tsis sib haum ua rau lub microstructure.
Kev faib cov xuab zeb-cov txheej zoo plua plav ntawm kev tiv thaiv thiab rub-yuav tsum qhuav, tsis muaj dej, thiab tsis muaj kev sib txuas. Peb siv calcined alumina hmoov, tsis graphite. Graphite wicks noo noo rau hauv pwm interface thiab txhawb nqa cov leeg tsis xws luag hauv stainless hlau castings.
Shakeout lub sij hawm tseem ceeb tshaj qhov feem ntau paub. Tshem tawm cov castings ntxov dhau ua rau thermal shock tawg-tshwj xeeb tshaj yog nyob rau hauv high-carbon hlau. Ntev dhau lawm, thiab cov cua sov seem ua rau muaj kev cuam tshuam hauv cov khoom siv siv. Peb tus qauv: cua-txias castings kom txog thaum qhov kub thiab txias poob qis dua 150 ° C, txheeb xyuas nrog cov ntsuas kub ntawm tes IR-tsis yog timers.
Los ntawm Pwm mus rau Lub Hom Phiaj-Qhov tseem ceeb: Qhov twg Sand Casting Fits Hnub no
Xuab zeb casting tsis yog cuab yeej cuab tam-nws yog lub hauv paus rau kev tsim khoom hybrid. Ntawm QINGDAO QIANGSENYUAN TECHNOLOGY, peb muab cov xuab zeb cam khwb cia blanks nrog multi-axis CNC machining, kev kho cua sov, thiab nto tiav-tag nrho hauv ib lub ru tsev ISO. Qhov kev tswj ntsug cia peb lav GD&T ua raws li cov yam ntxwv zoo li concentricity ntawm bore-rau-flange (± 0.05 hli) los yog nto roughness Ra ≤0.8 µm ntawm sealing ntsej muag.
Yog tias koj tab tom qhia txog lub siab valve vaj tsev lossis engineering tsheb winch tivthaiv, nkag siab qhov qhov chaw ntawm xuab zeb casting txhais tau hais tias paub qhov twg kam rau ua pawg, qhov twg muaj qhov tsis xws luag, thiab qhov kev xaiv tsim cuam tshuam li cas rau tus nqi thiab lub sijhawm ua haujlwm. Nws txhais tau tias nug tsis yog "Nws puas tuaj yeem muab pov tseg?" Tab sis "Yuav ua li cas txhua yam pwm yuav coj tus cwj pwm ntawm 1,520 ° C nrog 12-thib ob lub sijhawm ncuav?"
Qhov ntawd yog qhov sib txawv ntawm daim duab thiab khoom xa tuaj. Thiab nws yog vim li cas peb cov neeg muas zaub - los ntawm North America mus rau cov teb chaws Asia - xa peb GD & T-nplua nuj kos duab nrog nruj metallurgical specs, tsis yog sketches. Vim lawv paub tias cov pwm tsis yog lub thawv xwb. Nws yog thawj theem ntawm kev tswj kom zoo.
