Thaum koj hnov 'stainless steel valve castings', feem ntau lub siab dhia ncaj nraim mus rau polished, zoo meej-zoo Cheebtsam hauv cov catalog. Qhov ntawd yog thawj qhov kev xav tsis zoo. Qhov tseeb yog lub ntiaj teb ntawm tshav kub, nplai, thiab kev sib tham tas li ntawm metallurgy, geometry, thiab tus nqi. Nws tsis yog hais txog pouring molten 316 rau hauv pwm; Nws yog hais txog kev tswj cov solidification shrinkage nyob rau hauv ib tug complex lub cev, kom ntseeg tau lub stainless hlau valve castings muaj kev ncaj ncees los daws 1000 PSI thiab corrosive media, tsis yog saib zoo ntawm daim ntawv spec. Kuv tau pom ntau tus qauv tsim uas ua haujlwm hauv CAD tab sis yog npau suav phem rau cam khwb cia, ua rau raug nqi rov ua dua lossis, phem dua, kev ua tsis tiav.
Qhov Kev Sib Tw Core: Nws yog tag nrho hauv Geometry
Lub cev valve yog qhov teeb meem hauv qhov chaw tsim khoom. Lawv tsis yooj yim blocks. Koj tau txais kev sib tshuam, sib txawv ntawm phab ntsa tuab nyob ib ncig ntawm cov chaw nres nkoj, thiab cov flange ntsej muag tseem ceeb. Lub thermal dynamics thaum txias yog npau suav phem yog tias tsis tswj. Ib ntu tuab pub rau hauv phab ntsa nyias? Qhov ntawd yog qhov chaw kub kub tos kom tsim cov porosity shrinkage, txoj cai qhov ntsuas qhov ntsuas qhov tseem ceeb tshaj plaws. Peb kawm qhov no txoj kev nyuaj ntawm kev txiav txim ntxov rau lub rooj vag valve lub cev. Tus neeg siv khoom tsim muaj qhov zoo nkauj, compact profile, tab sis cov txheej txheem tseem ceeb yuav luag tsis tuaj yeem ua kom zoo. Qhov tshwm sim yog 30% seem tus nqi los ntawm sab hauv porosity pom thaum lub sij hawm machining. Zaj lus qhia tsis yog hais txog kev kuaj X-ray zoo dua; nws yog hais txog kev koom tes hauv cov qauv tsim los qhia cov kev hloov pauv hloov pauv thiab hloov radii uas ua rau cov hlau ntws thiab poob qis.
Qhov no yog qhov uas tus txheej txheem kev xaiv ua qhov tseem ceeb. Rau cov txheej txheem sab hauv ntawm lub ntiaj teb lossis lub pob valve, lub plhaub molding feem ntau muab qhov zoo dua qhov tiav thiab qhov tseeb qhov tseeb dua li cov xuab zeb ntsuab. Tab sis rau qhov loj dua, qhov hnyav-sab qhov rooj li qub, lub rooj vag ruaj khov thiab nce qhov system hauv cov xuab zeb pwm yuav ua rau kev lag luam ntau dua los tiv thaiv kev poob qis. Nws yog kev lag luam tawm. Kuv nco qab ib qhov project nrog Qingdao Qiangsenyuan Technology Co., Ltd. (QSY) qhov twg peb tau prototyping ib series ntawm tswj valve lub cev nyob rau hauv duplex stainless hlau. Cov yam ntxwv ntawm cov khoom solidification yog qhov nyuaj. Lawv pab neeg, leaning ntawm lawv lub plhaub pwm kev txawj ntse, tau npaj ib qho kev hloov kho qhov rooj tsim uas pub cov hlau los ntawm lub hauv qab flange upward, txo turbulence thiab oxide inclusion. Nws tsis yog phau ntawv qhia, tab sis nws ua haujlwm. Koj tuaj yeem pom lawv txoj hauv kev mus rau qhov nyuaj geometry ntawm lawv qhov chaw ntawm https://www.tsingtaocnc.com - Nws yog tsawg dua txog kev thov flashy thiab ntau ntxiv txog cov txheej txheem kev ua haujlwm ntawm kev sib txuam, uas yog qhov tseeb.
Thiab tom qab ntawd muaj qhov nyiaj pub rau machining. Txhua tus xav kom txo qis kom txuag tau ntawm cov nqi machining. Tab sis yog tias koj txiav nws nyias dhau lawm, kev hloov pauv me ntsis hauv qhov casting lossis qhov chaw tsis zoo txhais tau hais tias qhov seem yog seem tom qab koj tau nqis peev hauv qhov casting. Peb standardize ntawm 3 hli pub rau ntawm lub ntsej muag tseem ceeb rau feem ntau ntawm peb stainless hlau valve castings, tab sis rau cov ntawv thov siab, peb tuaj yeem tsoo qhov ntawd. Nws yog ib qho tsis rau kev muaj tiag. Tus kws kho tshuab xav tau ib yam dab tsi los ua haujlwm nrog, tshwj xeeb tshaj yog thaum koj tuav lub siab ntev +/- 0.5mm ntawm qhov nruab nrab ntawm lub ntsej muag.
Cov ntaub ntawv tshawb fawb: 304, 316, CF8M, thiab Tshaj
Tsuas yog ua nws tawm ntawm 316. Qhov ntawd yog ib qho kev thov. Tab sis 316 yog dab tsi? Cam khwb cia sib npaug CF8M? Wrought 316 bar Tshuag rau ib qho sib txawv? Chemistry thiab mechanical zog txawv. Lub casting alloy yuav tsum muaj fluidity zoo thiab tsis kam mus kub tearing. Cov ntsiab lus ntawm silicon yog siab dua. Yog tias koj tsis paub meej, koj yuav tau txais ib feem uas dhau qhov kev sim phom PMI rau Cr/Ni/Mo tab sis tej zaum yuav tsis muaj qhov cuam tshuam rau cov kev pabcuam cryogenic. Kuv tau siv sijhawm teev qhia cov khoom tshwj xeeb ntawm POs. Nws tsis yog pedantry; nws tiv thaiv lub valve los ntawm kev tawg thaum lub sij hawm ntsuas siab.
Tom qab ntawd muaj cov alloys tshwj xeeb rau kev pabcuam hnyav. Peb tau ua haujlwm ntawm ib qhov project uas yuav tsum tau nickel-raws li alloys rau kev siv roj qaub. Lub casting nws tus kheej tsuas yog ib nrab ntawm kev sib ntaus sib tua. Kev kho cua sov lub voj voog tom qab-casting kom ua tiav qhov tsim nyog corrosion kuj thiab kev ntxhov siab nyem yog ib qho kev ua las voos. nrawm dhau, koj pheej hmoo tawg; qeeb dhau, koj tau txais nag lossis daus uas tsis xav tau. Lub qhov cub hluav taws xob tswj thiab tom qab-casting QA ua qhov tseem ceeb. Ib lub tuam txhab zoo li QSY, uas teev cov alloys tshwj xeeb xws li cobalt thiab npib tsib xee-raws li hauv lawv cov khoom siv, nkag siab qhov no. Nws tsis yog tsuas yog muaj cov alloy; nws yog hais txog muaj cov txheej txheem tswj los kho nws. Lawv lub sijhawm ua haujlwm ntev, raws li tau sau tseg hauv lawv cov lus qhia, qhia txog qhov kev paub dhau los, uas yog qhov koj tab tom yuav tiag tiag.
Thiab cia peb tham txog kev kho weld. Lawv feem ntau tsim nyog, tab sis lawv yog tus chij liab rau qee cov neeg siv kawg. Qhov tseem ceeb yog cov txheej txheem thiab cov ntaub ntawv. Kev kho me me ntawm thaj chaw tsis tseem ceeb tom qab WPS tsim nyog yog ib yam. Kev kho ntau yam ntawm phab ntsa uas muaj siab yog lwm qhov. Qhov kev coj ua zoo tshaj plaws yog tsim thiab ua kom txo qis kev kho, tab sis thaum lawv tshwm sim, tag nrho traceability yog tsis sib tham. Ib tug zoo foundry yuav muaj qhov system ingrained.
Los ntawm Rough Casting mus rau qhov xaus: Lub Machining Handoff
Qhov no yog qhov uas ntau qhov project stumble. Ib qho zoo nkauj casting tuaj txog ntawm lub khw muag khoom, thiab lawv tsis tuaj yeem tsim kom muaj kev ntseeg siab. Los yog lawv nrhiav tau ib qho chaw nyuaj uas rhuav tshem ib lub cuab yeej. Kev koom ua ke ntawm casting thiab machining nyob rau hauv ib lub ru tsev, los yog tsawg kawg nyob rau hauv nruj kev sib koom tes, yog ib tug loj kom zoo dua. Tus kws kho tshuab yuav tsum nkag siab txog qhov kev sib txawv ntawm qhov casting, thiab qhov chaw tsim khoom yuav tsum nkag siab tias qhov chaw yog qhov tseem ceeb rau kev txhim kho.
Kuv tau pom kev teeb tsa qhov chaw uas lub chaw tsim khoom muab cov cam khwb cia lossis cov thawj coj tshwj xeeb rau cov tshuab siv los ua cov ntsiab lus clamping, uas tau muab tshem tawm tom qab. Nws yog ib qho yooj yim, ci ntsa iab kev koom tes. Thaum lub molder thiab machiner yog cais cov chaw, tus ntiv tes taw tes pib lub sij hawm ib tug dimension yog tawm ntawm spec. Nws puas yog ib qho tseem ceeb hloov thaum lub sij hawm casting, los yog ib feem ntawm lub zog thaum lub sij hawm clamping? Nws yog ib qho kev ua si tshawb nrhiav kim. Cov qauv ntawm muab ob qho tib si casting thiab CNC machiningRaws li QSY ua, txo qhov no. Lub voj voog tawm tswv yim yog sab hauv. Pab pawg machining qhia rau pab pawg casting txog ib lub phab ntsa nyias nyias hauv ib kab noj hniav tshwj xeeb, thiab cov qauv tuaj yeem hloov kho rau kev khiav haujlwm tom ntej. Qhov kev txhim kho tas mus li ntawd yog qhov nyuaj rau kev ntsuas hauv ib qho kev tsocai tab sis tsis muaj nuj nqis nyob rau lub sijhawm ntev.
Surface finish yog lwm qhov touchpoint. Ib qho chaw zoo li-cam khwb cia los ntawm lub plhaub pwm yuav zoo rau qee qhov chaw sab hauv, tab sis qhov chaw sib khi yuav xav tau machining. Lub ntsiab lus ntawm daim duab yuav tsum muaj kev cuam tshuam qhov no. Kev qhia txog 63 Ra ntawm qhov chaw zoo li-cam khwb cia yog qhov kev xav. Koj yuav tsum paub tias dab tsi ua tiav los ntawm cov txheej txheem thiab npaj cov txheej txheem tsim khoom raws li.
Quality: Ntau tshaj ib daim ntawv pov thawj
Txhua leej txhua tus xav tau MTR (Cov Ntaub Ntawv Ntsuam Xyuas Cov Khoom) thiab daim ntawv qhia hydrotest. Qhov ntawd yog rooj ceg txheem ntseeg. Qhov zoo tiag tiag yog nyob rau hauv tus txheej txheem tswj koj yeej tsis pom. Yuav ua li cas zoo ib yam li yaj chemistry los ntawm tshav kub mus rau tshav kub? Yuav ua li cas cov pwm thiab cores tshuaj xyuas ua ntej pouring? Dab tsi yog qhov kev sim tsis muaj kev puas tsuaj (NDT) raws tu qauv? Rau qhov tseem ceeb valve castings, peb tau txav los ntawm qhov chaw radiography mus rau 100% radiography ntawm cov phab ntsa siab. Nws tau nce tus nqi, tab sis nws tshem tawm txoj kev pheej hmoo ntawm txoj kev xau mus rau qhov tsis pom. Nws yog kev txiav txim siab ua lag luam raws li daim ntawv thov kev pheej hmoo.
Dimensional soj ntsuam yog nws cov tsiaj nyaum. Kev tshuaj xyuas ob peb qhov loj me nrog calipers tsis txaus rau lub cev valve complex. Thawj Tsab Ntawv Tshuaj Ntsuam Xyuas (FAI) nrog CMM ntawm tus qauv yog qhov tseem ceeb. Tab sis txawm li ntawd los, koj tab tom kuaj xyuas tus qauv. Qhov sib xws ntawm cov txheej txheem molding yog qhov lav tias txhua qhov zoo. Qhov ntawd rov qab los rau lub foundry lub craftsmanship thiab tu tooling. Ib daim qauv hnav yuav ya raws specs nyob rau lub sijhawm, maj mam.
Thaum kawg, ntim thiab xa khoom. Nws suab tsis tseem ceeb, tab sis lub ding ntawm lub ntsej muag flange los ntawm kev ntim khoom tsis zoo tuaj yeem ua rau qhov tsis tuaj yeem siv tau. Kev tsim nyog crating, thaiv, thiab kev tiv thaiv ntawm machined thiab as-cam khwb cia nto yog qhov kawg, feem ntau overlooked, kauj ruam ntawm zoo. Ib tug kws tshaj lij hnav ris tsho tau txais txoj cai no yam tsis tau hais.
Tus nqi tiag-lub ntiaj teb sib npaug
Nqe ib kilogram yog ib txoj kev txaus ntshai los sib piv stainless hlau valve castings. Qhov pheej yig tshaj casting feem ntau dhau los ua cov khoom kim tshaj plaws thaum koj ua rau cov khoom seem, kev xa khoom qeeb, thiab mob taub hau zoo. Tus nqi yog nyob rau hauv tus nqi yield, qhov sib npaug ntawm qhov sib npaug, thiab kev txhawb nqa. Lub foundry uas nug cov lus nug ntxaws txog daim ntawv thov yog ib qho uas xav txog yuav ua li cas thiaj li ua tau haujlwm, tsis yog muaj nyob xwb.
Tsawg-ntim, siab sib xyaw ua haujlwm yog qhov kev sim tiag tiag. Kev teeb tsa rau kev khiav ntawm 50 qhov tshwj xeeb valve lub cev yog qhov sib txawv ntawm qhov kev txiav txim ntau lawm ntawm 5000. Cov qauv nqi, cov tub ntxhais lub thawv engineering, cov txheej txheem kev loj hlob - cov no yog amortized ntau dua qhov chaw. Qhov no yog qhov uas tus foundry qhov hloov tau yooj yim thiab txaus siab los koom tes rau cov kev daws teeb meem them nyiaj. Nws tsis yog hais txog qhov muaj qhov cub loj tshaj plaws; Nws yog hais txog kev muaj lub siab zoo rau kev ua haujlwm tsis tshua muaj suab nrov.
Thaum kawg, kev vam meej stainless hlau valve castings nqis los rau kev koom tes. Nws yog kev sib tham ntawm tus tsim qauv, tus tsim, thiab tus kws kho tshuab. Lub hom phiaj yog los txhais cov kev ua haujlwm uas yuav tsum tau ua rau hauv qhov muaj zog, ua tau zoo geometry, nyob rau hauv txoj cai alloy, nrog rau txoj kev kwv yees thiab pob tshab mus rau qhov ua tiav, txhim khu kev qha. Nws yog ntxhov, rov ua dua, thiab tag nrho ntawm kev sib haum xeeb. Tab sis thaum koj tau txais nws txoj cai, qhov tsis txaus ntseeg, qhov ntxhib-nrawm casting ua lub plawv ntawm lub valve uas ua haujlwm tau ntau xyoo yam tsis muaj kev xav thib ob. Qhov ntawd yog qhov ua tiav tiag tiag uas tseem ceeb.
