Thaum cov kws ua haujlwm hais txog grey hlau casting rau hydraulic valve lub cev lossis lub twj tso kua mis, lawv tsis yog xaiv cov khoom siv xwb - lawv tab tom twv ntawm qhov ruaj khov nyob rau hauv 300-bar siab, hnav tsis kam tom qab 10,000 lub voj voog ua haujlwm, thiab xoom kam rau micro-shrinkage hauv load-bearing flanges. Yog vim li cas xaiv txoj cai grey hlau casting Hoobkas tsis yog hais txog tus nqi qis tshaj lossis lub sijhawm ua haujlwm ceev tshaj plaws. Nws yog hais txog kev tswj xyuas metallurgical, txheej txheem kev qhuab qhia, thiab kev sib koom ua ke ntawm engineering - peb yam uas peb tau pom tsis tu ncua thaum castings tsiv tawm ntawm ntug dej tsis muaj kev saib xyuas kev ua haujlwm.
Ntawm QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., peb tshuab thiab cam khwb cia hlau hlau txhua hnub - tsis yog cov khoom lag luam, tab sis ua haujlwm txuas ntxiv ntawm cov tshuab hluav taws xob siab. Peb pab pawg foundry tsis kho ASTM A48 Chav Kawm 30B ua lub checkbox. Peb taug qab graphite nodule suav ib mm², txheeb xyuas cov ntsiab lus pearlite ntawm metallography ua ntej kev kho cua sov, thiab siv tau lub zog tensile ntawm txhua lub ladle ncuav-tsis yog cov qauv batch xwb. Vim li cas? Vim hais tias lub piston twj tso kua mis lub tog raj kheej vaj tse nrog 12% pearlite es tsis txhob ntawm 85-92% tsis ua hauj lwm ntxov nyob rau hauv thermal cycling. Peb tau pom nws. Thiab peb tau tsim peb cov txheej txheem los tiv thaiv nws.
Dab tsi cais qhov txhim khu kev qha grey hlau casting Hoobkas los ntawm kev lag luam kev lag luam yog kev sib koom ua ke ntsug - tsis yog hauv cov khoom siv, tab sis hauv kev txiav txim siab txoj cai. Ntawm peb qhov chaw muaj ntawv pov thawj ISO hauv Qingdao, tib tus kws ua haujlwm uas pom zoo cov ntaub ntawv pov thawj tseem tau kos npe rau ntawm CMM cov ntaub ntawv kawg rau GD&T callouts zoo li Ø42.5 ± 0.015 hli nrog txoj hauj lwm kam rau ua 0.05 hli txheeb ze rau datum A-B-C. Tsis muaj handoffs. Tsis muaj kev txhais lus poob ntawm casting tsim thiab machining teeb. Thaum tus neeg siv khoom xa ib daim duab rau lub winch center ncej cov menyuam nrog cuam tshuam 60 ° helical grooves, peb pab neeg khiav kev sib tw simulation * ua ntej * kev pom zoo qauv - thiab chij riser qhov chaw txaus ntshai uas yuav ua rau porosity hauv thaj tsam iav mesh. Qhov ntawd tsis yog "kev txhawb nqa." Nws yog kev sib koom ua tswv cuab ntawm kev ua haujlwm.
- Cov ntaub ntawv traceability pib ntawm lub cub tawg - tsis yog lub nkoj thauj khoom. Txhua grey hlau casting yog ib tug xov tooj cua kub txuas mus rau spectrographic tsom xam, txias tus nqi cav, thiab hardness mapping nyob rau hauv ib qho tseem ceeb seem.
- Tsis muaj "tus qauv" xuab zeb pwm txheej txheem. Peb siv resin-bonded pwm rau nyias-phab ntsa vaj tse (2.8 hli yam tsawg kawg nkaus), ntsuab xuab zeb rau cov hauv paus loj (> 120 kg), thiab tswj cov cua txias rau kev ntxhov siab-tseem ceeb flanges-tsis muaj ib qho loj-haum-tag nrho.
- Machining tsis yog tom qab nrum ntxuav - nws yog qhov nyiaj them ncaj qha. Peb offset rau kwv yees shrinkage (0.72% rau HT250), raug rau pwm distortion nyob rau hauv ntau kab noj hniav setups, thiab re-machine bearing bores tom qab kev nyuaj siab-relief annealing tuav roundness nyob rau hauv 0.008 hli.
Qee tus neeg yuav khoom xav tias grey hlau yog "yooj yim." Tab sis qhov nyuaj zais hauv cov ntsiab lus: Yuav ua li cas koj tus neeg muag khoom tswj kev sib cais ntawm sulfur nyob rau hauv hnyav-section castings? Lawv puas ntsuas ferrite / pearlite piv - lossis tsuas yog qhia Brinell hardness? Lawv puas tuaj yeem tuav 0.02 hli flatness ntawm 450 × 320 mm mounting nto yam tsis muaj kev sib tsoo? Peb tau muaj cov neeg siv khoom hloov mus rau peb tom qab peb qhov kev xa khoom tsis tiav los ntawm cov neeg muag khoom uas dhau qhov kev kuaj pom - tab sis xa cov khoom nrog subsurface graphite flotation uas tawg thaum lub sij hawm ntsuas hydraulic ntawm 220 bar. Kev kho tsis zoo QC. Nws tau nruj dua kev tswj hwm qhov kub thiab txias (1380-1410 ° C), lub sijhawm inoculation (hauv 20 vib nas this ntawm tapping), thiab pwm preheating sib xws. Cov no tsis yog specs ntawm cov ntaub ntawv. Lawv xyaum ua suab paj nruag.
Rau lub hom phiaj tseem ceeb daim ntaub ntawv-oilfield twj thav ntawv, mobile crane hydraulic manifolds, marine bilge system li qub-koj lub Hoobkas grey hlau yuav tsum ua haujlwm ntawm kev sib tshuam ntawm metallurgy, geometry, thiab lub ntiaj teb kev thauj khoom. Qhov ntawd txhais tau hais tias siv tau qhov kev sim ua pov thawj rau lub cev ntsuas ntsuas * ib qho cua sov *, siv lub tshuab ntsuas kev sib koom tes - tsis yog calipers - rau kev tshuaj xyuas zaum kawg, thiab tuav tag nrho traceability los ntawm ladle mus rau cov khoom xa tuaj. Nws txhais tau hais tias kev nkag siab tias AMS 5387 cobalt alloy vaj tsev sib koom tib lub tshuab ua haujlwm thiab cov txheej txheem tswj xyuas thermal raws li lawv cov khoom siv hlau grey-vim qhov seem drift cuam tshuam rau ob qho tib si. Nws txhais tau hais tias "tsis yog" rau lub sijhawm nruj heev thaum kev ua qauv ua qauv qhia pom tias muaj kev pheej hmoo - thiab muab cov kev pabcuam siv tau siv tsis yog kev cog lus.
Yog tias koj xav tau grey hlau castings uas muaj sia nyob 15 xyoo nyob rau hauv ntug dej hiav txwv dej hiav txwv ib puag ncig lossis tswj kev ruaj ntseg tom qab 50,000 lub voj voog siab, pib nrog cov txheej txheem pob tshab-tsis yog cov lej teev npe. Nrhiav cov ntaub ntawv soj ntsuam cov txheej txheem, tsis yog daim ntawv pov thawj xwb. Xyuas kom tseeb tias "precision" suav nrog kev tswj hwm microstructure, tsis yog nruj nruj. Thiab nco ntsoov: qhov kim tshaj plaws casting tsis yog ib qho nrog tus nqi siab tshaj plaws. Nws yog ib qho uas ncua kev ua haujlwm, ua rau thaj chaw rov ua haujlwm, lossis cuam tshuam txog kev nyab xeeb. QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. tsim grey hlau Cheebtsam qhov twg tsis ua hauj lwm tsis yog ib qho kev xaiv - yog li kev cia siab rau tsis yog ib tug feature. Nws yog lub hauv paus.
