Thaum cov kws tshaj lij qhia cov khoom siv hluav taws xob lossis cov hlau grey rau cov tshuab hydraulic, cov khoom siv roj av, lossis cov twj siv hnyav, lawv tsis yog xav tau castings - lawv xav tau dimensional stability nyob rau hauv 300+ bar siab, microstructure sib xws thoob plaws 500-thooj batch, thiab zero tolerance rau shrink porosity nyob rau hauv load-bearing flanges. Tias yog vim li cas muab los ntawm qhov tseeb casting hlau Hoobkas-tsis yog tus neeg sawv cev ua lag luam lossis cov chaw tsim khoom lag luam - tsis tuaj yeem sib tham. Peb tau pom ntau txoj haujlwm qeeb los ntawm kev suav cov graphite nodule tsis sib haum, tsis sib haum ntawm Brinell hardness (HBW 180–220 vs. xav tau 210–240), lossis qhov chaw tsis xws luag uas yuam rov ua haujlwm tom qab machining. Tus khub zoo ua haujlwm metallurgy zoo li kev qhuab qhia - tsis yog kev xav tom qab.
Vim li cas Material Integrity pib ntev ua ntej lub ncuav
Feem ntau cov kev ua tsis tiav rov qab mus rau kev tswj cov khoom siv raw-tsis yog cov txheej txheem casting. Ntawm QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., txhua pawg ntawm EN-GJS-400-15 ductile hlau pib nrog ntawv pov thawj npua hlau thiab ferrosilicon los ntawm ISO 9001-certified smelters. Lawv txheeb xyuas cov pa roj carbon sib npaug (CE) thaum tuaj txog siv LECO combustion tsom xam - tsis yog cov ntawv pov thawj ntawm cov khoom siv. Peb tau ntsuas CE drift siab li ± 0.15% hauv ntau qhov tsis tau lees paub, ncaj qha ua rau cov nodularity poob hauv cov vaj tsev tuab tuab. Lawv lub chaw soj nstuam khiav ASTM A536 pov thawj ntawm txhua qhov cua sov: lub zog tensile, elongation, thiab hardness - tag nrho cov logged nrog rau qhov cub ID, ncuav lub sij hawm, thiab txias npaum li cas. Tsis muaj "tus qauv sawv cev" qhov khoob. Qhov no tsis yog overkill - nws yog li cas lawv tuav lub tog raj kheej vaj tse rau piston twj rau ± 0.02 hli roundness tom qab kho cua sov.
Qhov twg Sand Casting ntsib CNC Kev qhuab qhia
Grey hlau qhov chaw xws li twj tso kua mis los yog lub cev valve xav kom nruj flatness (<0.05 hli tshaj 600 hli) thiab meej machined bores. Txawm li cas los xij xuab zeb casting ib leeg tsis tuaj yeem xa nws. QINGDAO QIANGSENYUAN txuas qhov sib txawv nrog kev tswj cov txheej txheem ntsug: lawv qhov chaw tsim khoom siv cov xuab zeb sib xyaw ua ke nrog kev saib xyuas dej raws sijhawm, tom qab ntawd hloov cov castings ncaj qha mus rau hauv lub tsev 5-axis CNC hlwb. Tsis muaj kev tuav pov hwm sab nraud. Tsis muaj qhov tob tob ntawm qhov casting thiab tiav machining. Lawv tshuab qhov chaw sealing tseem ceeb thaum lub casting tseem muaj kev ntxhov siab-txiav thermal distortion los ntawm 40% piv rau tom qab annealing machining. Rau lub siab li qub uas xav tau AMS 2700 Chav Kawm 2 passivation, lawv ua ke txhaj tshuaj peening thiab nitric acid ntxuav ua ntej kev soj ntsuam zaum kawg. Nws tsis yog "casting + machining." Nws yog ib tug engineered kab ke.
Kev lees paub tiag tiag hauv ntiaj teb: Dab tsi cov neeg siv khoom tau sim tiag
North American oilfield cov neeg siv khoom tsis lees txais cov ntawv xeem - lawv siv tau ua haujlwm. Ib tus neeg siv khoom tau sim 12 winch center ncej chais nyob rau hauv 120,000-cycle qaug zog loading ntawm -20 ° C. Tag nrho dhau lawm. Lwm tus khiav cobalt-alloy nozzles (AMS 5387) tiv thaiv abrasive slurry rau 72 teev - xoom yaig dhau 0.03 hli qhov tob. Cov no tsis yog lab xav paub. Lawv yog cov khoom tsim khoom xa tuaj nrog tag nrho traceability: cov xov tooj cua sov, tshuaj ntsuam xyuas luam tawm, CMM daim ntawv qhia rau tag nrho GD&T callouts, thiab micrograph qhia graphite morphology ib ISO 945-1. Thaum lub twj tso kua mis nyob sab Europe xav tau ISO 13003-raws li cov ntaub ntawv tawg toughness rau EN-GJL-250 grey hlau, lawv xa Charpy V-notch cuam tshuam qhov tseem ceeb - tsis yog tensile specs. Qhov no yog li cas koj tsis txhob "nws zoo nyob rau hauv daim duab" surprises.
Xaiv Koj Lub Tuam Txhab Hlau Casting: Peb Qhov Kev Ntsuam Xyuas Tsis Muaj Kev Sib Tham
- Nug lawv peb cov ntaub ntawv teev tseg kawg- tsis yog daim ntawv pov thawj. Txheeb xyuas yog tias hardness, tensile lub zog, thiab tshuaj muaj pes tsawg leeg tau sau tseg rau ib qho cua sov, tsis yog ib qho.
- Yuav tsum muaj pov thawj ntawm kev siv CMM- tsis yog kev soj ntsuam zaum kawg nkaus xwb. Qhov loj me tseem ceeb yuav tsum tau kuaj xyuas tom qab kev ua haujlwm ntxhib thiab ua ntej txiav tiav.
- Paub meej tias lawv muaj ob qho tib si casting thiab machining cov cuab tam. Cov txheej txheem sab nraud ntxiv 7-12 hnub ua ntej lub sijhawm thiab qhia txog kev sib raug zoo uas tsis muaj GD&T daim ntawv tuaj yeem kho.
QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. ntsib tag nrho peb. Lawv qhov chaw nyob hauv Qingdao ua haujlwm raws li ISO 9001: 2015 thiab tswj cov txheej txheem sau tseg rau txhua kauj ruam - los ntawm kev npaj xuab zeb mus rau qhov kawg ntim. Lawv xa mus rau North America, Europe, thiab Southeast Asia nrog tag nrho cov ntaub ntawv kev lis kev cai thiab RoHS / REACH ua raws li cov khoom siv specs. Yog tias koj lub tsev hlau txuas txuas ntxiv yuav tsum muaj sia nyob 20 xyoo hauv subsea valve actuator - lossis koj lub twj tso kua mis grey yuav tsum ua kom muaj kev vibration ntawm 3,600 RPM - pib nrog kev ua haujlwm ntawm metallurgical, tsis yog kev lag luam. Lub zog tshaj casting hlau Hoobkas tsis cog lus tias yuav zoo tag nrho. Nws ua pov thawj qhov sib xws - ib qho cua sov, ib qho casting, ib qho kev ntsuas ib zaug.
