Thaum koj hnov TIAB SA 5387, thawj yam uas feem ntau los rau hauv siab yog tsuas yog lwm qhov kub-kub alloy spec ntawv. Qhov ntawd yog qhov cuab yeej cuab tam. Nyob rau hauv kev muaj tiag, kev soj ntsuam nrog cov specification no rau cobalt-raws li superalloys, tshwj xeeb tshaj yog Stellite 6, yog tsawg dua hais txog cov tshuaj muaj pes tsawg leeg cov lus thiab ntau ntxiv txog cov gritty, hands-on seev cev ntawm lub foundry thiab lub tshuab khw. Nws yog ib yam khoom uas cog lus zoo heev hnav thiab corrosion kuj mus txog li cas, 800 ° C? Tab sis cov lus cog tseg ntawm daim ntawv thiab ib feem ntawm koj txhais tes yog ob lub ntiaj teb sib txawv. Kuv tau pom ntau qhov project stumble los ntawm kev kho TIAB SA 5387 raws li kev hloov khoom siv yooj yim. Tsis yog. Tag nrho cov fabrication philosophy yuav tsum hloov.
Lub Foundry Floor Reality
Cia peb tham txog sab casting ua ntej. TIAB SA 5387 cov ntaub ntawv, feem ntau yog poured li Stellite 6, yog ib tug tsiaj nyaum mus nrum huv si. Cov ntsiab lus siab cobalt thiab chromium txhais tau hais tias nws yooj yim rau kev tsim nyuaj, nkig theem yog tias qhov cua txias tsis yog lawm. Peb kawm qhov no nyuaj heev xyoo dhau los ntawm lub rooj zaum valve project. Cov ntawv luam tau hu rau TIAB SA 5387, thiab peb tau txais cov hlau alloy. Lub plhaub pwm pwm pib ua haujlwm zoo meej-zoo nkauj tiav. Tab sis thaum lub sij hawm ntsuas siab, ntau qhov chaw tsim cov kab nrib pleb. Tsis pom tseeb, tab sis hom koj pom nrog dye penetrant. Qhov teeb meem? Peb lub rooj vag thiab rising system, zoo kawg nkaus tsim nyog rau cov qauv stainless hlau, tsis suav nrog cov hlau no ntau qhov nqaim zog ntau. Peb tau qhov tseem ceeb pub cov shrinkage tsis ncaj ncees lawm, tsim cov ntsiab lus kev ntxhov siab sab hauv.
Qhov no yog qhov uas tus foundry qhov kev paub ntev mus dhau los ua tsis muaj kev sib tham. Ib lub tuam txhab xws li Qingdao Qiangsenyuan Technology Co., Ltd. (QSY), nrog lawv peb lub xyoo caum hauv plhaub thiab peev casting, yuav muaj cov txheej txheem tsis-pwm preheat kub, ncuav ceev, tom qab-casting txias raws tu qauv-twb hu rau cov rhiab alloys. Nws tsis yog ib yam uas koj pom hauv spec. Nws yog pab pawg neeg paub txog ntawm lub khw hauv pem teb. Rau TIAB SA 5387, qhov sib txawv ntawm lub suab nrov thiab cov khoom seem feem ntau los ntawm qhov koj tswj cov thermal profile ntawm lub ladle mus rau chav txias. Koj tsis tuaj yeem tis nws xwb.
Lwm subtlety yog as-cast hardness. TIAB SA 5387 qhia txog ntau yam, tab sis lub xeev li-cam khwb cia feem ntau tsaws ntawm qhov kawg siab dua. Qhov ntawd yog qhov zoo rau kev hnav tsis kam, tab sis nws tam sim ntawd qhia txog kev sib tw rau theem tom ntej: machining. Yog tias koj tsis koom tes nrog kev ua haujlwm nyuaj nrog koj pab pawg machining, koj tab tom teeb tsa lawv rau lub ntiaj teb ntawm kev raug mob nrog cov cuab yeej siv ntxov ntxov. Nws yog ib tug classic handoff tsis ua hauj lwm ntawm departments.
Machining: Qhov twg Theory ntsib cov cuab yeej me ntsis
Qhov no yog qhov uas tus cwj pwm tiag tiag ntawm TIAB SA 5387 qhia. Machining Stellite 6 tsis zoo li machining 304 lossis txawm tias 17-4 PH stainless. Nws ua hauj lwm-hardens aggressively. Koj muab txiav, thiab qhov chaw koj nyuam qhuav nthuav tawm yuav nyuaj dua li cov khoom hauv qab. Yog tias koj cov khoom noj thiab cov nrawm nrawm, koj nyob nraum qhov tseem ceeb polishing thiab hardening ib feem nrog txhua qhov hla, ua rau muaj kev puas tsuaj rau cov cuab yeej tsis ua haujlwm. Qhov tseem ceeb yog kom tau nyob rau hauv qhov chaw ua hauj lwm-hardened txheej. Koj xav tau ib qho zoo rake, cov cuab yeej ntse - carbide lossis ceramic, tsis yog HSS - thiab koj yuav tsum tswj hwm tus nqi noj zaub mov zoo ib yam. Hesitation yog tus yeeb ncuab.
Kuv nco qab ib qho kev tivthaiv rau lub thermal ua fixture peb machined los ntawm ib TIAB SA 5387 casting. Cov geometry koom nrog cov phab ntsa nyias thiab cov hnab ris sib sib zog nqus. Peb qhov kev sim thawj zaug siv qhov kev saib xyuas, kev kub ceev milling zoo nrog me me stepovers. Nws yog kev puas tsuaj. Cov cuab yeej chipped tas li, thiab ib feem distorted los ntawm lub tshav kub input. Peb tau nqis rov qab, hloov mus rau cov cuab yeej nruj dua, txo cov ntxaiv ceev, thiab nce qhov pub rau ib tus hniav. Nws xav tias counterintuitive yuav nruj dua, tab sis nws ua haujlwm. Lub nti tsim tau hloov los ntawm cov plua plav, ci ntsa iab mus rau ib qho tuab, curled nti uas nqa cov cua sov mus. Qhov ua tiav thiab qhov seem stability tau zoo tag nrho. Zaj lus qhia? Cov khoom no xav tau kev hwm, tab sis tsis yog kev kho me nyuam-pob looj tes. Nws yuav tsum tau txiav txim siab, paub txiav.
Coolant yog lwm qhov kev sib cav. Qee cov lus cog tseg los ntawm kev kub siab los ntawm cov cuab yeej txias kom tswj cov cua sov thiab tawg cov chips. Lwm tus, kuv tus kheej suav nrog, tau txais txiaj ntsig zoo nrog lub luag haujlwm hnyav emulsion dej nyab cov dej txias, yog tias nws tau qhia zoo kawg nkaus ntawm kev sib tshuam. Lub hom phiaj yog thermal tswj thiab lubrication. Rau drilling thiab tapping TIAB SA 5387, txawm li cas los xij, kuv khov kho nyob rau hauv lub high-pressure coolant camp. Nws yog tib txoj hauv kev kom tshem tawm cov chips los ntawm qhov sib sib zog nqus thiab tiv thaiv lub cuab yeej los ntawm vuam mus rau qhov chaw ua haujlwm.
Kev Sib Tw Kev Sib Koom: Los ntawm Casting mus rau Qhov Kawg
Qhov no yog qhov tseem ceeb ntawm ntau yam tsis nco qab. TIAB SA 5387 tsis yog kev xaiv khoom xwb; nws yog qhov kev xaiv qhov system. Qhov kev vam meej ntawm ib qho kev sib koom ua ke ntawm kev ua haujlwm seamless los ntawm kev tsim qauv tsim txhua txoj hauv kev mus rau qhov kawg machining lag luam. Piv txwv li, yog tias koj paub tias koj muaj qhov tob tob rau lub tshuab, koj xav tau lub hauv paus rau qhov chaw txias rau hauv cov pwm pwm los kho cov qauv nplej hauv cheeb tsam tshwj xeeb, muab koj cov machinability zoo dua qhov koj xav tau. Qhov kev sib koom ua ke no yog qhov cais cov khoom lag luam los ntawm tus khub tsim khoom tiag.
Saib ntawm tus kws kho mob lub peev xwm holistically. Ib lub tuam txhab zoo li QSY, uas teev cov peev txheej casting thiab CNC machining rau cov ntaub ntawv suav nrog cobalt-raws li alloys, yog positioned los tswj tag nrho cov nqi ntws. Lawv tuaj yeem txhim kho cov txheej txheem casting rau machinability vim lawv kuj yog cov tuav cov cuab yeej txiav. Lawv tuaj yeem ntxiv cov khoom lag luam hauv cov cheeb tsam tseem ceeb, kho cov kaum sab xis kom zoo dua cov cuab yeej siv, lossis txawm hais tias muaj kev hloov pauv me ntsis kom tsis txhob muaj lub kaum sab hauv uas tsis tuaj yeem siv tau. Qhov kev tawm tswv yim sab hauv lub voj voog ntawm pawg casting thiab machining yog qhov tseem ceeb rau qhov nyuaj spec zoo li TIAB SA 5387. Koj zam qhov kev ua si liam ntawm cov neeg muag khoom sib cais.
Peb ib zaug muaj lub twj tso kua mis hnav lub nplhaib uas ua tsis tiav hauv kev sim teb. Nws tau teev tseg raws li TIAB SA 5387, thiab cov casting yog zoo, lub machining yog los luam. Qhov tsis ua hauj lwm yog nyob rau hauv ib tug ntse ces kaum ntawm lub hauv paus ntawm ib tug zawj. Lub casting, thaum lub suab, muaj ib tug me ntsis rounded internal fillet nyob rau hauv. Kev ua haujlwm machining, sim ntxuav nws mus rau lub kaum ntse ntse, sab laug lub micro-notch uas dhau los ua qhov kev ntxhov siab thiab pib taw tes rau kev tawg hauv qab thermal cycling. Yog tias qhov casting thiab machining nyob rau hauv ib lub ru tsev, cov txheej txheem yuav zoo li tau raug tshuaj xyuas tag nrho. Txoj kev daws teeb meem yuav tau hloov tus qauv tsim kom tso cai rau lub vojvoog, lossis hloov cov txheej txheem casting kom ua tiav qhov ze-net zoo nyob rau hauv lub ces kaum. Nws yog cov ntsiab lus sib cuam tshuam uas txhais tau tias muaj kev vam meej.
Kev Tshawb Fawb thiab Kev Tshawb Fawb
Tsis txhob xav tias qhov TIAB SA 5387 tag ntawm ib lub bar lossis ingot yog tag nrho zaj dab neeg. Cov spec suav nrog ntau yam, thiab kev hloov pauv me me hauv qhov ntau tuaj yeem cuam tshuam ob qho tib si castability thiab machinability. Cov ntsiab lus ntawm silicon, piv txwv li, cuam tshuam fluidity thaum pouring. Peb twb muaj batch uas cam khwb cia zoo nkauj thiab lwm tus los ntawm ib tug sib txawv yaj uas yog sluggish, yuav tsum tau hloov kho rau ncuav kub. Ib tus neeg muag khoom txhim khu kev qha nrog kev tswj xyuas zoo ib yam yog tsim nyog rau tus nqi. Nws txo cov txheej txheem sib txawv, uas yog tus yeeb ncuab tuag ntawm kev ntseeg siab superalloy qhov chaw.
Daim ntawv pov thawj yog rooj ceg txheem ntseeg. Koj xav tau cov ntawv pov thawj zeb, tab sis kuj xav txog kev khiav koj tus kheej cov ntaub ntawv pov thawj. Rau cov khoom tseem ceeb, peb feem ntau ua qhov ntsuas hluav taws xob nrawm lossis OES tshawb xyuas ntawm tus khiav lossis ib qho kev txiav tawm los ntawm cov casting ntau tsuas yog kom paub meej tias cov ntsiab lus tseem ceeb yog qhov uas peb xav kom lawv. Nws yog 15-feeb xyuas uas tuaj yeem txuag lub lis piam ntawm mob taub hau. Lub hardness ntawm cov ntaub ntawv raws li-cam khwb cia kuj yog ib tug zoo, ceev qhia ntawm seb cov kev kho cua sov (yog hais tias ib yam dab tsi tau thov tom qab-casting) tau ua kom raug thiab yog hais tias cov khoom yog nyob rau hauv kev cia siab rau machining.
Thaum kawg, nco ntsoov qhov ntawd TIAB SA 5387 feem ntau yog lub hauv paus. Ntau daim ntawv thov yuav muaj cov kev xav tau tshwj xeeb rau cov neeg siv khoom tshwj xeeb - siab dua qhov nyuaj dua, nruj NDE (xws li kev tshuaj xyuas hluav taws xob rau qhov casting), lossis kev kho qhov chaw tshwj xeeb. Cov add-ons no yuav tsum tau muab xam rau hauv qhov kev npaj thawj zaug. Koj tsis tuaj yeem tshuab ib feem rau daim iav tiav tsuas yog kom nws xa tawm mus rau txheej txheej uas yuav tsum muaj qhov ntxhib grit-blasted nto. Cov kab ke tseem ceeb.
Xaus Kev xav: Nws yog txheej txheem, tsis yog kev yuav khoom
Yog li, thaum koj tab tom qhia lossis tsim nrog TIAB SA 5387, koj nyob nraum tiag tiag qhia cov saw ntawm cov txheej txheem tshwj xeeb. Nws tsis yog khoom. Kev xaiv ntawm kev tsim tus khub yog qhov tseem ceeb raws li cov khoom xaiv nws tus kheej. Koj xav tau ib tus neeg uas nkag siab txog cov khoom siv tus cwj pwm los ntawm cov yaj mus rau qhov kev tshuaj ntsuam zaum kawg. Lawv xav tau lub hauv paus kev paub nyob rau hauv casting high-kev ua tau zoo alloys thiab lub machining prowess los tuav lawv. Nws yog hais txog kev nrhiav kev sib koom ua ke, cov khoom tsim tau ntau xyoo dhau los ntawm kev daws teeb meem ib yam li cov khoom siv no.
Thaum kawg, ua hauj lwm nrog specs nyiam TIAB SA 5387 yog dab tsi cais cov khw muag khoom los ntawm cov koom tes hauv engineering. Nws yog ib qho yooj yim los ua ib feem ntawm cov hlau me me. Ua kom muaj kev ntseeg siab, muaj txiaj ntsig zoo los ntawm superalloy yuav tsum muaj kev mob siab rau kev nkag siab thiab kev tswj hwm txheej txheem. Txhua kauj ruam, los ntawm kev tshuaj xyuas cov ntawv pov thawj alloy kom mloog lub suab ntawm kev txiav ntawm CNC zeb, yog ib feem ntawm kev txiav txim hu. Tsis muaj autopilot.
Tus nqi tiag tiag tsis yog nyob rau hauv kev xa ib feem uas ua tau raws li cov ntawv luam tawm, tab sis hauv kev xa ib qho uas yuav ua tau raws li qhov xwm txheej hnyav nws tau tsim los rau. Qhov ntawd yog cov lus cog tseg uas tsis hais tom qab TIAB SA 5387 kev xaiv, thiab nws yog cov lus cog tseg uas tau ua tiav ntawm lub khw hauv pem teb, tsis yog nyob rau hauv qhov chaw ua haujlwm.
