Thaum koj hnov 'qhov chaw muaj zog', qhov kev xav tam sim ntawd feem ntau dhia mus rau tus lej tensile ntawm daim ntawv teev cov ntaub ntawv-UTS, lub zog tawm los, tej zaum elongation. Qhov ntawd yog qhov pib, paub meej, tab sis nws yog qhov chaw ntau qhov haujlwm, tshwj xeeb tshaj yog los ntawm cov neeg siv khoom tshiab rau kev lag luam hnyav lossis xav tau daim ntawv thov, tau nce mus. Lawv yuav tuaj nrog cov khoom siv qib, hais 4340 lossis 17-4 PH, thiab xav tias qhov kev ua tau zoo yog lav. Qhov tseeb, qhov uas ua tsis tau lossis ua tiav ntawm lub khw hauv pem teb lossis hauv thaj chaw, yog forged nyob rau hauv kev sib tshuam ntawm cov khoom, txheej txheem, thiab lub hom phiaj tsim. Nws tsis yog hais txog dab tsi ntawm cov hlau, tab sis koj ua dab tsi rau nws thiab seb koj zoo li cas.
Lub Foundation: Nws pib nrog Casting
Koj tsis tuaj yeem tshuab hauv lub zog uas tsis muaj los pib nrog. Qhov ntawd yog txoj cai cardinal. Rau peb, ntau qhov no cov khoom muaj zog pib ua ib tug casting. Siv lub plhaub pwm casting - nws tsis yog tsuas yog ua kom zoo nkauj xwb. Rau lub hydraulic valve thaiv los yog lub twj tso kua mis vaj tse uas yuav tsum tau ua raws li 5000+ PSI, kev ncaj ncees ntawm qhov pib casting yog txhua yam. Porosity tsis yog qhov tsis zoo ntawm qhov chaw koj tuaj yeem tshuab tam sim; nws yog ib qho kev ntxhov siab uas tos kom pib tawg nyob rau hauv cyclic loading. Peb twb pom lawm. Ib feem dhau tag nrho cov kev ntsuam xyuas zoo li qub, tom qab ntawd ua tsis tiav hauv kev sim qaug zog tom qab ob peb txhiab lub voj voog. Tus neeg ua txhaum? Ib qhov me me shrinkage kab noj hniav nyob rau hauv ib qho tseem ceeb phab ntsa, tsis pom mus txog thaum koj txiav qhov qhib. Tias yog vim li cas cov txheej txheem tswj nyob rau hauv lub foundry tsis yog ib tug nqi; nws yog txoj cai tuav pov hwm rau tag nrho cov kev pab cuam lub neej.
Kev nqis peev casting ua rau koj los ze zog rau net zoo nrog zoo dua nto tiav, uas yog qhov zoo rau cov geometry nyuaj hauv cov khoom muaj zog zoo li turbine hniav los yog impellers. Tab sis ntawm no, lub rooj vag system tsim thiab tus nqi cua txias dhau los ua qhov sib txawv tseem ceeb. Tau txais qhov kev sib tw ua kom muaj zog tsis raug, thiab koj qhia txog kev ntxhov siab sab hauv lossis microstructural inconsistencies uas tsis muaj qhov kev kho cua sov tuaj yeem kho tag nrho. Nws yog ib qho kev kos duab me me. Koj tsis yog tsuas yog nchuav hlau rau hauv lub plhaub ceramic; koj tab tom qhia yuav ua li cas nws hloov los ntawm cov kua mus rau ib qho khoom, nplej los ntawm nplej. Cov qauv ntawd yog lub hauv paus ntawm nws lub zog.
Thiab cov alloys lawv tus kheej-qhov no yog qhov uas 30 xyoo los txog. Tsiv ntawm tus qauv 316 stainless mus rau qib los nag-hardening zoo li 17-4PH, los yog mus rau hauv lub cheeb tsam ntawm nickel-raws li alloys xws li Inconel 718, hloov tag nrho cov kev ua si. Cov ntaub ntawv no tsawg dua kev zam txim. Lawv siab zog muaj peev xwm raug kaw tom qab cov txheej txheem kho cua sov tshwj xeeb. Piv txwv li, nrog 17-4PH, qhov sib txawv ntawm H900 thiab H1150 tempers tsis yog ob peb ksi; Nws yog qhov ua tiav ntawm kev hloov pauv hauv daim ntawv thov profile - ib qho nyiam lub zog siab tshaj plaws, lwm qhov zoo dua corrosion kuj thiab toughness. Pom zoo qhov tsis yog vim nws yog tus qauv yog qhov yuam kev classic. Koj yuav tsum nug: dab tsi yog qhov chaw ua haujlwm? Puas yog nws cov khoom siv hluav taws xob ntshiab, lossis puas muaj thermal cycling, corrosion, puas? Qhov yuav tsum tau muaj zog siab yog yeej tsis nyob hauv lub tshuab nqus tsev.
Machining Dance: Tshem cov khoom tsis muaj kev cuam tshuam kev ncaj ncees
Qhov no yog theem uas ib tug zoo casting ua ib qho zoo heev, los yog puas lawm. CNC machining rau cov khoom muaj zog Nws tsis yog qhov yooj yim ntawm kev khiav ib qho program. Qhov kev ntxhov siab seem nyob rau hauv cov khoom nyoos los yog forged dawb paug yog daim ntawv qhia zais. Siv cov txiav hnyav hauv qhov tsis ncaj ncees lawm, thiab koj tuaj yeem rub tawm ntawm qhov zoo li koj tab tom ua nws, lossis phem dua, ua rau muaj kev ntxhov siab tshiab uas yuav cuam tshuam tom qab thaum kho cua sov. Peb kawm qhov no nyuaj heev xyoo dhau los ntawm ib pawg ntawm cov khoom siv hlau loj loj blanks. Machined lawv zoo nkauj, xa lawv tawm. Lawv rov qab los tom qab kev kho cua sov, tawm ntawm kev ua siab ntev los ntawm ob peb tus koj nyob rau hauv lub bore. Kev ntxhov siab los ntawm lub cub tawg cia cov khoom txav mus rau qhov sib npaug tshiab. Tam sim no, peb siv cov txheej txheem kev sib tw, tawm cov khoom sib npaug, thiab feem ntau suav nrog lub voj voog kev ntxhov siab ua ntej qhov kawg machining dhau. Nws ntxiv ib kauj ruam, tab sis nws txuag tag nrho batch.
Kev xaiv cov cuab yeej thiab cov tswv yim coolant ua qhov tseem ceeb nrog cov alloys nyuaj. Khiav ib tug generic carbide ntxig rau ntawm cobalt-raws li alloy yuav hlawv lub cuab tam nyob rau hauv feeb thiab ua hauj lwm-harden rau saum npoo, ua rau lub tom ntej pass txawm nyuaj thiab tej zaum yuav ua rau cov khoom ntawm subsurface qauv. Koj xav tau kev teeb tsa nruj, qhov zoo rake geometries, qee zaum txawm tias CBN lossis PCD cov cuab yeej. Thiab coolant tsis yog rau txias xwb; nws yog rau nti khiav tawm. Ib qho kev txhim kho los yog cov nti recut tuaj yeem ua rau saum npoo, tsim kom muaj lwm qhov kev ntxhov siab me me. Rau ib lub tuam txhab xws li QSY, tuav lub tsev qiv ntawv sib sib zog nqus ntawm cov cuab yeej cuab tam thiab cov khoom siv sib txawv - los ntawm cov hlau cam khwb cia rau Inconel - tseem ceeb npaum li cov tshuab lawv tus kheej. Nws yog tacit kev paub tsim los ntawm ntau txhiab teev nyob rau hauv pem teb, tsis yog los ntawm phau ntawv. Koj tuaj yeem nrhiav qee qhov ntawm peb txoj hauv kev rau cov teeb meem no tau sau tseg hauv cov ntaub ntawv tshawb fawb ntawm peb qhov chaw ntawm https://www.tsingtaocnc.com.
Tom qab ntawd muaj cov lus nug ntawm cov yam ntxwv. Ntse sab hauv ces kaum yog yeeb ncuab ntawm cov khoom muaj zog. Lawv yog cov zoo meej kev ntxhov siab concentrators. Peb siv sijhawm ntau hauv kev tshuaj xyuas kev tsim qauv, tawm tswv yim rau cov dav dav fillet radii, txawm tias nws nyuaj rau txoj kev siv. Qee lub sij hawm tus neeg siv khoom tus qauv CAD qhia tau hais tias zoo nkauj, ntse kaum uas yog theoretically ua tau rau tshuab nrog me me kawg zeb. Peb yuav tsum thawb rov qab: lub ces kaum yuav yog qhov tsis ua tiav. Cia peb lub vojvoog nws, txawm tias nws tsuas yog R0.5mm. Nws yog ib qho kev sib tham tas mus li ntawm kev tsim qauv zoo tagnrho thiab cov khoom tsim tau, txhim khu kev qha kev muaj tiag.
Kev kho cua sov: Alchemy ntawm lub zog
Yog tias machining yog cov duab puab, kev kho cua sov yog cov kab ke uas coj nws mus rau txoj sia. Qhov no yog qhov uas cov khoom siv tshwj xeeb tau ua tiav. Thiab nws nyob deb ntawm lub teeb thiab tsis nco qab nws lub voj voog qhov cub. Quenching media - roj, dej, polymer, huab cua - muaj qhov sib txawv loj heev. Quenching ib tug complex-puab siab zog nrawm dhau, thiab koj yuav raug tawg lossis tawg loj heev. qeeb dhau, thiab koj tsis tau txais qhov xav tau martensitic hloov pauv hauv cov hlau, ua rau koj muaj cov tub ntxhais mos.
Peb koom tes nrog cov khw muag khoom kub tshwj xeeb, tab sis peb tsis yog xa tawm cov duab kos. Peb muab cov ncauj lus kom ntxaws txheej txheem raws li ib feem ntawm geometry thiab cov alloy. Rau qhov tuab-section low-alloy steel feem, peb yuav qhia kom muaj kev cuam tshuam los yog marquench txheej txheem los txo cov thermal shock. Rau nag lossis daus-hardening stainless, lub sij hawm-kub nkhaus rau kev laus yog dawb huv; qhov sib txawv ntawm 10 ° C lossis 15 feeb tuaj yeem hloov qhov hardness thiab toughness. Kuv nco qab txog qhov project rau marine tivthaiv qhov twg ntsev-txhaj tshuaj tiv thaiv corrosion yog ib qho tseem ceeb raws li lub zog tawm los. Tus qauv H900 npau taws rau 17-4PH tau muab peb lub zog tab sis sab laug ntawm kev tiv thaiv corrosion ciam teb. Peb yuav tsum tau sim nrog cov neeg muaj hnub nyoog tshaj (ze dua rau H1150) thiab tom qab ntawd kho cov nyiaj ua haujlwm machining kom suav rau cov khoom siv sib txawv me ntsis tom qab kho. Nws yog ib qho kev sib npaug, tab sis nws tau xa ib feem uas ua haujlwm.
Kev pov thawj yog tsis sib tham. Cov ntawv pov thawj los ntawm cov kws kho cua sov yog qhov pib, tab sis rau lub hom phiaj tseem ceeb, peb feem ntau ua peb tus kheej qhov chaw kuaj xyuas-kev sim hardness hla ntau ntu ntawm cov qauv, lossis tseem xa tawm daim coupon los ntawm tib lub tshav kub ntau rau kev kuaj tag nrho. Koj ntseeg, tab sis koj paub tseeb. Tus nqi ntawm qhov ua tsis tiav hauv kev pabcuam dwarfs tus nqi ntawm qhov kev mob siab ntxiv no.
Case nyob rau hauv Point: Ib Gear Hub uas yuav luag tsis yog
Ob peb xyoos dhau los, ib tus neeg siv khoom tuaj rau peb nrog lub tshuab ua tsis tiav los ntawm lub tshuab ua haujlwm hnyav. Tus thawj yog ib tug fabricated weldment uas tawg ntawm lub tshav kub-cuam tshuam cheeb tsam. Lawv xav tau monolithic, siab zog hloov. Qhov tshwj xeeb hu ua ASTM A ductile steel (90 ksi tensile) nrog kev cuam tshuam siab toughness ntawm qhov kub thiab txias. Lub casting nws tus kheej, siv plhaub molding rau qhov ntev stability, yog ncaj nraim rau peb ntawm QSY. Qhov kev sib tw yog machining thiab cov khoom kawg.
Ib feem muaj qhov loj, nyias flange. Peb qhov pib machining ib ntus, raws li tus qauv kev coj ua, ua rau me ntsis tab sis qhov tsis txaus ntseeg tom qab qhov kev sib tw dhau los. Peb yuav tsum rov qab mus, rov tsim kho qhov kho kom zoo los txhawb lub flange thoob plaws hauv cov txheej txheem, thiab siv lub tswv yim qeeb, sib npaug ntau dua. Tom qab ntawd tuaj kho cua sov. Yuav kom ua tiav qhov tawv tawv, xav tau kev quench thiab tempered, tab sis peb tau txhawj xeeb txog qhov flange distorting. Peb tau ua hauj lwm nrog cov kws kho cua sov los tsim ib qho kev cai fixture uas yuav tuav ib feem ntsug thaum lub sij hawm quench los xyuas kom meej uniform txias. Nws yog ib kauj ruam ntxiv, tus nqi ntxiv, tab sis nws ua haujlwm. Cov khoom tau ntsib tag nrho cov neeg kho tshuab specs thiab tau khiav tsis muaj teeb meem. Txoj haujlwm ntawd, zoo li ntau lwm tus, tau sau tseg hauv peb cov ntaub ntawv ntawm Qingdao Qiangsenyuan Technology Co., Ltd.(QSY) lub vev xaib. Nws yog ib qho piv txwv zoo ntawm kev muaj zog siab npaum li cas yog txoj kev taug kev, tsis yog qhov chaw koj mus txog los ntawm kev xaiv cov khoom tawm ntawm daim ntawv teev npe.
Lub takeaway los ntawm qhov ntawd, thiab los ntawm suav tsis txheeb lwm qhov kev txiav txim, yog qhov kev xa tawm tiag tiag siab zog yuav tsum tau kho tag nrho cov hauj lwm-los ntawm cov yaj chemistry nyob rau hauv lub foundry mus rau qhov kawg kev soj ntsuam-raws li ib tug tib, integrated system. Ib qho tsis muaj zog hauv txhua qhov txuas cuam tshuam rau tag nrho cov saw hlau. Koj tsis tuaj yeem tshawb xyuas qhov zoo rau hauv ib feem; koj yuav tsum tsim nws nyob rau hauv, kauj ruam los ntawm kev tswj cov kauj ruam.
Tib neeg qhov xwm txheej thiab kev xav ntawm tus txheej txheem
Thaum kawg, muaj ib qho khoom tsis pom kev uas specs tsis ntes. Tom qab kaum xyoo hauv kev lag luam no, ntawm QSY thiab ua ntej, koj tsim ib qho kev xav. Ib tus kws kho tshuab uas paub txog tuaj yeem hnov qhov kev hloov pauv ntawm kev txiav - me ntsis kev sib haum xeeb - uas qhia nws tias lub cuab yeej pib npub lossis cov khoom muaj qhov nyuaj. Tus kws tshaj lij hauv kev tsim khoom tuaj yeem saib cov dej ntws ntawm cov hlau mus rau hauv pwm thiab kev nkag siab yog tias qhov kub thiab txias yog me ntsis tawm. Qhov no tsis yog mystical; nws yog tus qauv lees paub yug los ntawm txhais tes ntawm kev rov ua dua.
Qhov kev xav no qhia txog kev txiav txim hu xov tooj. Thaum qhov kev ntsuam xyuas ultrasonic qhia tau hais tias me me, cais tsis tu ncua nyob rau hauv qhov chaw tsis tseem ceeb ntawm qhov loj loj, koj puas tau khawb ib qho $ 10,000? Tus qauv yuav hais tau. Tab sis raws li qhov chaw, cov kev taw qhia kev ntxhov siab, thiab daim ntawv thov kev nyab xeeb, tus kws paub txog kev paub yuav pom zoo nrog daim ntawv, txuag qhov project. Conversely, ib tug zoo meej-saib nto tej zaum yuav raug tsis lees paub vim hais tias cov machining pub tus nqi siab dhau lawm, uas yuav ua rau subsurface puas. Cov kev txiav txim siab no yog qhov twg cov roj hmab tau raws li txoj kev. Lawv nyob nraum raws qhov tob, yuav luag instinctual to taub yuav ua li cas cov khoom muaj zog nyob thiab tuag nyob rau hauv lub ntiaj teb no tiag tiag, kev nkag siab tias QSY tau cog qoob loo dhau los ntawm nws txoj haujlwm ntev hauv casting thiab machining.
Yog li, thaum peb tham txog cov khoom muaj zog, peb tab tom tham tiag tiag txog lub tswv yim ntawm kev tswj hwm thiab kev nkag siab, siv hla cov saw hlau ntawm cov txheej txheem nyuaj. Nws yog hais txog kev txuas cov dots ntawm metallurgy, thermodynamics, mechanical engineering, thiab cov tswv yim hauv khw hauv pem teb. Cov ntaub ntawv yog cov lus cog tseg; txhua yam uas tshwm sim tom qab qhov kev txiav txim tau muab tso rau yog kev xa cov lus cog tseg ntawd. Thiab qhov kev xa khoom ntawd yeej tsis, tsis siv neeg.
