Thaum cov kws tshaj lij qhia cov hlau castings rau hydraulic manifolds, twj tso kua mis vaj tse, los yog winch ncej rollers, lawv tsis yog tsuas yog yuav hlau - lawv tab tom yuav qhov ruaj khov nyob rau hauv 300-bar siab, microstructural sib xws thoob plaws 500-ib pawg, thiab xoom kam rau porosity nyob rau hauv load-bearing zones. Tias yog vim li cas "kev cai hlau casting Hoobkas"tsis yog pawg neeg muag khoom-nws yog qhov pib ua haujlwm.
Peb tau pom ntau txoj haujlwm qeeb los ntawm cov chaw tsim khoom uas kho cov hlau casting raws li cov khoom lag luam: graphite nodule suav tsis quav ntsej, cov nyiaj poob qis tau kwv yees los ntawm cov duab kos qub, cov sij hawm kho cua sov siv dav dav. Ntawm QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., txhua qhov hlau casting pib nrog lub hom phiaj metallurgical-tsis yog pwm filling. Peb qhov chaw ua haujlwm ISO-raws li hauv Qingdao khiav cov txheej txheem xuab zeb calibrated rau ASTM A48 Class 35, A536 ductile hlau, thiab kev cai ferritic-pearlitic blends-txhua tus xaiv kom phim cov kev ntxhov siab ua haujlwm, tsis yog cov kab kos lub zog tensile.
Kev thov tiag tiag hauv ntiaj teb tsim peb cov txheej txheem kev qhuab qhia. Rau piston twj tso kua mis lub tog raj kheej vaj tse, peb tswj cov cua txias nyob rau hauv ± 2 ° C nyob rau hauv lub pwm kab noj hniav kom tsis txhob distortion nyob rau hauv lub bore sib dhos. Rau engineering tsheb winch center ncej chais, peb validate graphite morphology ntawm SEM ua ntej machining - vim hais tias flake tis ncaj qha cuam tshuam rau lub neej qaug zog ntawm 12,000-cycle intervals. Thiab thaum cov neeg muas zaub xa GD&T callouts nyiam ⌀0.015 mm txoj hauj lwm kam rau ntawm 8 × Ø22 mm mounting bores, peb tsis yog ntsuas-peb simulate thermal expansion thaum lub sij hawm machining, ces kho cov cuab yeej offsets nyob rau hauv lub sij hawm tiag tiag siv Renishaw QC20-W probes. Qhov ntawd yog li cas peb tuav txoj haujlwm tseeb hauv 0.008 hli ntawm ntau lawm.
Kev sib xyaw ntsug ua rau qhov no ua tau - thiab tsim nyog. Casting, CNC machining, thiab nto finishing tshwm sim nyob rau hauv ib lub ru tsev. Tsis muaj kev tuav pov hwm txhais tau tias tsis muaj qhov me me ntawm qhov kev sib tw ntawm kev sib tsoo thiab qhov kawg ua tiav. Peb tshuab ncaj qha tawm raws li-cam khwb cia qhov chaw uas ua tau, tshem tawm rov kho qhov yuam kev. Thaum tshav kub kub kev kho mob ua raws li casting yam tsis muaj cov ntaub ntawv hloov mus qeeb - tseem ceeb heev rau kev ua tiav cov Brinell hardness (220-260 HBW) hla cov tuab-section Cheebtsam. Thiab vim tias peb tau txais cov ntaub ntawv pov thawj-raws li cov ntaub ntawv soj ntsuam-peb paub cov ntsiab lus ntawm leej faj ntawm txhua pawg ua ntej nchuav. Sulfur ntau dua 0.025%? Tsis lees paub. Tsis yog vim nws ua txhaum spec-tab sis vim nws txaus ntshai micro-shrinkage nyob rau hauv junctions ntawm nyias thiab tuab seem.
Peb lub zog sib txawv tshaj plaws tsis yog cov cuab yeej siv-nws yog kev siv tau yooj yim. Thaum tus neeg teb xov tooj North American oilfield xav tau AMS 5387 cobalt alloy twj tso kua mis rov tsim dua rau hauv cov hlau hlau rau cov nqi-rhiab, peb tsis yog pauv cov ntaub ntawv xwb. Peb ua qauv thermal cycling nyob rau hauv ANSYS, kho nodularization tus neeg sawv cev kom khaws 18% elongation ntawm -20 ° C, thiab validated hnav tsis kam tiv thaiv API RP 14E yaig nkhaus nkhaus. Qhov tshwm sim: 40% tus nqi qis dua, xoom teb tsis ua haujlwm dhau 18 lub hlis. Qhov ntawd yog qhov sib txawv ntawm cov hlau casting thiab engineering hlau tus cwj pwm.
Yog tias koj ntsuas a kev cai hlau casting Hoobkas, nug peb lo lus nug: Lawv puas tuaj yeem qhia koj daim ntawv tshaj tawm CMM tsis ntev los no rau ib feem nrog ≥5 cov ntaub ntawv tseem ceeb? Lawv puas khaws tag nrho cov ntaub ntawv traceability - suav nrog ladle chemistry cav - rau txhua qhov kev txiav txim? Thiab lawv pab pawg engineering puas tuaj yeem chij GD&T tsis sib haum * ua ntej * quoting - tsis yog tom qab thawj tsab xov xwm tshuaj xyuas? QINGDAO QIANGSENYUAN TECHNOLOGY teb yog-txhua lub sijhawm. Vim tias kev ntseeg siab tsis tau xa hauv lub thawv xa khoom. Nws tau tsim rau hauv txhua lub ncuav, txhua lub voj voog cua sov, txhua micrometer ntawm kev tswj cov tshuab.
