Thaum engineers qhia peev casting silicone sol foundry Hoobkas muaj peev xwm, lawv tsis yog tab tom nrhiav rau tus neeg muag khoom-lawv tab tom nrhiav kev ruaj ntseg nyob rau hauv thermal stress, microstructural sib xws nyob rau hauv 50-kg cobalt alloy twj tso kua mis vaj tse, thiab xoom kam rau ua rau porosity nyob rau hauv AMS 5387 valve lub cev. Qhov ntawd yog qhov kev ua haujlwm tiag tiag peb pom txhua hnub ntawm QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD.—Qingdao-based chaw tsim khoom uas "silicone sol" tsis yog lo lus buzz; nws yog lub kaw lus khi uas tuav 12-micron nto tag tolerances ntawm T800 alloy nozzles ua ntej dewaxing.
Peb tau nrum ntau dua 17,000 cobalt-nickel Cheebtsam txij li xyoo 2019-txhua tus tau taug qab mus rau batch, xov tooj cua sov, thiab CMM tshuaj xyuas daim ntawv tshaj tawm. Hauv ib txoj haujlwm North American hydraulic OEM, lub piston twj tso kua mis lub tog raj kheej vaj tse ua tsis tau peb zaug nrog tus neeg sib tw lub silica-bonded plhaub: microcracks tsim thaum lub sij hawm dewaxing vim mismatched thermal expansion ntawm lub plhaub ceramic thiab T800 alloy core. Peb cov tshuaj silicone sol formulation, kho ntawm 180 ° C es tsis txhob ntawm 120 ° C, txo residual stress los ntawm 41% - txheeb xyuas ntawm XRD lattice strain tsom xam. Qhov ntawd tsis yog txoj kev xav. Tias yog vim li cas cov neeg siv khoom xa tuaj rau peb GD & T-hnyav kos duab nrog ± 0.015 hli qhov tseeb txoj hauj lwm callouts-thiab cia siab tias thawj tsab ntawv pom zoo.
Dab tsi cais qhov tseeb peev casting silicone sol foundry Hoobkas los ntawm ib tug general-purpose caster? Peb tsis-negotiables: Ua ntej, raw khoom tswj. Peb tsuas yog muab ntawv pov thawj AMS 5387 cobalt alloy ingots nrog tag nrho cov ntawv xeem ntawv-tsis yog daim ntawv pov thawj ntawm kev ua raws li. Thib ob, lub plhaub ruaj khov validation. Txhua lub plhaub batch raug ntsuas kub tensile lub zog ntawm 1,150 ° C ua ntej nchuav. Thib peb, post-cast geometry kev qhuab qhia. Sand-cam khwb cia qhov chaw shrink unpredictably; peev castings siv silicone sol shrink nyob rau hauv ± 0.12% -tab sis tsuas yog yog tias koj tswj ciab qauv nthuav, plhaub qhuav av noo (≤35% RH), thiab firing ramp nqi. Peb teev tag nrho peb lub sijhawm.
- Material mastery tshaj cov nplooj ntawv spec: Peb tsis tsuas yog "txhim kho" T800-peb paub nws cov eutectic melting point hloov 23 ° C thaum chromium poob 0.4%. Tias yog vim li cas peb lub qhov cub thermocouples tau ntsuas txhua hnub tiv thaiv NIST-traceable qauv.
- Tsis muaj "black box" machining: Txhua cov hlau lossis stainless hlau casting mus ncaj nraim ntawm lub plhaub tawg-tawm mus rau CNC-tsis muaj kev kho cua sov nruab nrab tshwj tsis yog tias tau teev tseg. Vim li cas? Vim tias peb cov tshuab 5-axis hauv tsev tuav ± 0.008 hli qhov tseeb ntawm 300-mm-inch twj tso kua mis lub hauv paus, tshem tawm rov kho qhov yuam kev.
- Traceability uas pib ua ntej pouring: Txhua qhov ntau yog QR-coded tag txuas rau cov ntaub ntawv pov thawj, lub plhaub tsim cov cav, ncuav qhov kub thiab txias, thiab CMM cov ntaub ntawv kawg - tag nrho cov neeg siv khoom siv tau los ntawm kev ruaj ntseg portal.
Qee tus yuav sib cav tias silicone sol yog overkill rau nruab nrab-ntim khiav. Tab sis xav txog qhov no: Tus tsim cov cuab yeej siv hluav taws xob sab hnub tuaj Asia xav tau 220 units ntawm qhov tsis yog tus qauv cobalt hlau ntsaws. Cov neeg sib tw tau hais cov xuab zeb casting-tom qab ntawd ntxiv $ 14,000 rau kev kho cov qauv tom qab thawj tsab xov xwm qhov dav dav. Peb tau xa cov kev pom zoo ua ntej siv silicone sol shells, nrog cov phab ntsa thickness variation tuav mus rau ± 0.18 hli hla 120 hli seem. Tus nqi delta? 7.3% siab dua ib chav tsev-tab sis 100% tsawg dua engineering rework, xoom seem, thiab xa 19 hnub ua ntej lub sijhawm. Precision casting tsis yog hais txog kev zam machining - nws yog hais txog kev tswj qhov twg thiab ntau npaum li cas machining tshwm sim.
Saib mus rau yav tom ntej: Peb tab tom nthuav peb lub peev xwm silicone sol muaj xws li hybrid ze-net-puab casting + precision EDM rau sab hauv cua txias channel hauv siab-siab valve lub cev-cov qauv tsis yooj yim rau tho tom qab nrum. Tab sis niaj hnub no qhov tseem ceeb tseem tsis tau hloov pauv: xa lub siab li qub uas kaw ntawm 420 bar yam tsis muaj qhov xau, lub twj tso kua mis uas muaj sia nyob 15,000-teev kev pabcuam lub neej hauv abrasive slurry, thiab winch center ncej rollers nrog hardness gradients txheeb xyuas los ntawm micro-Vickers mapping. Yog tias koj daim ntawv thov xav tau rov ua dua qhov kev ntseeg siab ntawm metallurgical - tsis yog "cam khwb cia rau luam tawm" - ces txoj cai peev casting silicone sol foundry Hoobkas tsis yog txhais los ntawm square footage lossis txhua xyoo tso zis. Nws tau txhais los ntawm qhov tsawg tshaj plaws pore txoj kab uas hla koj cov khoom tseem ceeb tuaj yeem zam tau ... thiab cov txheej txheem kev qhuab qhia los lav nws.
