Thaum cov kws tshaj lij qhia 310S stainless hlau rau cov khoom siv hluav taws xob, cov khoom siv hluav taws xob, lossis lub cev kub siab, lawv tsis yog xaiv cov khoom siv xwb - lawv tab tom twv ntawm microstructure stability siab tshaj 1,000 ° C. Tab sis ntawm no yog qhov feem ntau pawg neeg yuav khoom nrhiav tau lig dhau lawm: tsis yog txhua txhua 310S stainless hlau Hoobkas muab cov qauv zoo ib yam, carbide tis, lossis thermal qaug zog tsis kam - txawm tias muaj daim ntawv pov thawj zoo tib yam. Peb tau pom thaum tshav kub kub-kho 310S castings tawg tom qab 200 cycles ntawm 1,150 ° C - tsis yog vim tsim, tab sis vim li cas-cam khwb cia dendritic segregation tsis tag nrho homogenized ua ntej tov annealing.
Vim li cas cov khoom sib xws tseem ceeb dua li daim ntawv pov thawj zeb ib leeg
Ib daim ntawv qhia txog kev xeem mills paub meej tias muaj pes tsawg leeg. Nws ua tsis yog lav zoo chromium-nickel faib thoob plaws 400-mm-thick casting phab ntsa. Hauv kev tsim khoom hauv ntiaj teb tiag tiag, peb tau ntsuas txog li 8% Cr depletion nyob rau hauv interdendritic zones ntawm xuab zeb-cam khwb cia 310S - txaus los ua rau lub zos oxidation ntawm 1,050 ° C. Tias yog vim li cas cov neeg siv tam sim no xav tau cov ntaub ntawv kho cua sov uas tuaj yeem siv tau, tsis yog tshuaj ntsuam xyuas xwb. Qhov zoo tshaj plaws 310S stainless hlau Hoobkas integrates casting, tov annealing, thiab kev ntxhov siab-relieving rau hauv ib tug tswj ib theem zuj zus-tsis muaj sab nraud kho cua sov, tsis muaj batch handoffs. Ntawm peb qhov chaw nyob hauv Qingdao, txhua txhua 310S ntau dhau ob qhov kev daws teeb meem: thawj zaug ntawm 1,060 ° C rau tag nrho cov carbide dissolution, ces qeeb-txias mus rau 750 ° C thiab rov ua kom sov rau 920 ° C rau spheroidize residual sigma theem. Qhov no tsis yog tus qauv kev coj ua - nws yog li cas peb tuav intergranular corrosion tus nqi qis dua 0.02 mm / xyoo nyob rau hauv cyclic thermal raug.
Peb Muaj Peev Xwm Tsis Sib Tham Koj Yuav Tsum Tau Paub
Ua ntej pom zoo rau lub Hoobkas 310S stainless hlau, paub meej tias peb lub peev xwm - ntawm qhov chaw, tsis yog los ntawm email:
- Nyob rau hauv pem teb metallurgical pov thawj: Puas yog lawv khiav optical emission spectroscopy (OES) ntawm txhua qhov cua sov? Lawv puas tuaj yeem rub tus qauv los ntawm ntu tuab tshaj plaws ntawm koj qhov casting - tsis yog lub rooj sib tw khiav?
- Tswj cua kub kho: Puas yog annealing ua nyob rau hauv nitrogen-hydrogen mix furnaces nrog dew point ≤ -40 ° C? Huab cua-txias thaum lub caij txias tsim chromium oxide nplai uas ua rau lub sijhawm ntev scaling tsis kam.
- Dimensional stability validation: Rau qhov siab tshaj 300 hli, lawv puas ntsuas warpage tom qab Kev kho cua sov - tsis yog tom qab machining? Peb tau kho 0.8 hli hneev rau hauv lub nplhaib 310S los ntawm kev ua ntej distorting tus qauv, tom qab ntawd txheeb xyuas nrog laser tracker post-anneal.
Qhov twg Standard Catalogs Fail - thiab Custom Engineering yeej
Off-the-shelf 310S flanges ua haujlwm zoo ntawm 850 ° C. Tab sis thaum koj daim ntawv thov xav tau 1,100 ° C cycling nrog sulfur-laden syngas, generic specs poob sib nrug. Qhov ntawd yog thaum koj xav tau tus khub uas kho chemistry ua qhov pib-tsis yog qhov kawg. Rau cov neeg siv khoom nyob sab Europe lub tsev biomass gasifier li qub, peb tau kho 310S yaj: tsa silicon rau 1.8% rau kev txhim kho slag tsis kam, txo qis manganese mus rau 0.4% txhawm rau txhawm rau tsim cov delta-ferrite, thiab ntxiv 0.15% cerium rau pin cov ciam teb. Cov txiaj ntsig: 3.2 × ntev kev pab cuam lub neej piv rau ASTM A297 Qib HK40. Tsis muaj ntawv pov thawj npog qhov ntawd-tab sis kev sim hauv ntiaj teb tiag tiag.
Yuav Nug Dab Tsi Ua Ntej Xa Koj Thawj PO
Tsis txhob nug "Koj puas tuaj yeem ua 310S?" Nug es tsis txhob:
- "Qhia kuv qhov kawg peb daim duab qhia EDS ntawm 310S castings tuab dua 250 hli-tshwj xeeb yog qhov cuam tshuam ntawm riser thiab casting."
- "Koj lub sijhawm tuav ntev npaum li cas ntawm kev tawm dag zog thiab kev daws teeb meem rau 120-kg 310S vaj tse?" (Cov lus teb yuav tsum yog ≤ 4 teev)
- "Koj puas khaws cov qauv tensile los ntawm txhua qhov cua sov-thiab kuv puas tuaj yeem thov Charpy cov ntaub ntawv cuam tshuam ntawm 1,000 ° C?"
QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. tuav tag nrho traceability los ntawm ladle log mus rau qhov kawg CMM tsab ntawv ceeb toom. Txhua qhov kev txiav txim 310S suav nrog cov ntawv pov thawj raw khoom, cov kab kos kho cua sov, thiab cov duab metallographic ntawm ntu tuab tshaj plaws - muaj ua ntej xa khoom. Lawv cov ISO-raws li lub hauv paus tsim kev nqis peev thiab cov xuab zeb casting ib sab, cia lawv xaiv cov txheej txheem uas txo cov thermal gradient hauv cov cheeb tsam tseem ceeb. Rau cov geometries nyuaj xws li ntau qhov chaw nres nkoj tso tawm manifolds, lawv siv hybrid casting-machining: ntxhib-cam khwb cia ze-net zoo li, ces CNC-tshuab sealing nto rau ± 0.05 hli tom qab kev ntxhov siab nyem-tawm tom qab tshav kub-kho distortion.
Saib Tshaj ntawm Daim Ntawv Pov Thawj—Saib qhov tawg tawg
Qhov kev sim tseeb ntawm 310S stainless hlau Hoobkas tsis yog nws cov ntaub ntawv. Nws yog txawm hais tias nws cov pob txha pob txha pom huv, equiaxed nplej - tsis sib nrauj dendrites lossis sigma-theem tes hauj lwm. Thaum koj tau txais koj tus qauv thawj, thov kom muaj ib qho polished hla ntu ntawm phab ntsa hnyav tshaj plaws. Nyob rau hauv 100 × magnification, koj yuav tsum pom zoo li grain loj (ASTM 4-6), xoom intergranular cracking, thiab tsis muaj chromium-depleted bands. Qhov ntawd yog qhov kos npe ntawm tus neeg muag khoom uas kho 310S tsis yog cov khoom siv hlau - tab sis raws li qhov tseeb thermal system tivthaiv. Raws li cov phiaj xwm thoob ntiaj teb thawb kev ua haujlwm kub siab dua, qhov sib txawv ntawd cais cov neeg koom tes txhim khu kev qha los ntawm kev suav cov nqi rov qab. Lub sijhawm tom ntej koj qhia 310S, tsis txhob kuaj xyuas daim ntawv spec. Txheeb xyuas qhov microstructure.
