Thaum koj hnov 'steel xuab zeb casting,' daim duab tam sim no feem ntau yog ib qho ntxhib, hnyav, thiab qee qhov hnyav. Qhov ntawd yog thawj qhov kev xav tsis zoo. Nws tsis yog hais txog kev pov tseg cov hlau molten rau hauv lub thawv xuab zeb. Qhov tseeb yog cov txheej txheem nuanced qhov kev xaiv ntawm cov xuab zeb, khi, thiab qhov rooj tsim qauv txiav txim seb koj puas tau txais ib feem siv tau lossis ib pawg ntawm seem. Ntau tus xav tias nws yog qhov ' pheej yig thiab qias neeg' kev xaiv, tab sis hauv cov ntawv thov xws li cov tshuab hnyav, lub cev loj, lossis qee yam khoom siv hauv hiav txwv, feem ntau yog tib txoj kev siv nyiaj txiag thiab kev lag luam rau cov khoom ntim qis rau nruab nrab. Qhov ua kom yuam kev tsis yog ua ib qho casting xwb; nws ua ib qho uas txo cov machining tom ntej thiab kav ntev hauv kev pabcuam.
Lub hauv paus ntawm txheej txheem: Xuab zeb tsis yog Xuab zeb xwb
Wb tau granular. Cov 'xiav' hauv steel xuab zeb casting tsis tshua muaj silica los ntawm lub puam. Rau cov hlau, uas nchuav rau ntawm qhov kub ntau dua li hlau lossis txhuas, koj xav tau kev ncaj ncees refractory. Peb feem ntau siv cov xuab zeb chromite los yog zircon xuab zeb rau qhov chaw tseem ceeb lossis cov seem hnyav los tiv thaiv kev kub nyhiab thiab nkag mus rau qhov tsis xws luag. Nws yog kim dua, tab sis tus nqi ntawm qhov tsis xws luag uas yuav tsum tau siv sij hawm sib tsoo los yog ua rau txoj hauv kev xau hauv qhov chaw ruaj khov yog siab dua. Kuv tau pom tej yaam num ua tsis tau vim lawv sim txuag $0.50 ib kilo ntawm xuab zeb, tsuas yog siv kaum zaus ntawm rework.
Lub binder system yog lwm qhov kev sib ntaus sib tua. Furan resin, phenolic urethane, sodium silicate nrog CO2 - txhua tus muaj nws tus kheej kev lag luam tawm ntawm lub zog, collapsibility (tseem ceeb kom tsis txhob kub kua muag hauv cov hlau), thiab kev txhawj xeeb txog ib puag ncig / tsw. Nrog furan, yog tias cov ntsiab lus nitrogen tsis tswj hwm qib ntawm cov hlau koj tab tom nchuav, koj tuaj yeem tau txais cov pa phem porosity hauv qab ntawm daim tawv nqaij, uas tsuas yog tshwm sim tom qab machining. Kawm paub tias txoj kev nyuaj ntawm ib pawg ntawm cov twj tso kua mis xyoo dhau los.
Kev tsim qauv yog qhov chaw theoretical ntsib cov tswv yim. Rau cov hlau, cov nyiaj shrinkage yog nyob ib ncig ntawm 2% - ntau dua hlau. Tab sis nws tsis yog uniform. Qhov ntev, txwv geometry tuaj yeem txo qis dua, thaum seem dawb-lub voos xwmfab rub ntau dua. Koj them nyiaj nrog kev paub dhau los, qee zaum ntxiv 'shrink rulers' rau cov qauv. Rau ib lub tuam txhab xws li Qingdao Qiangsenyuan Technology Co., Ltd. (QSY), nrog rau lawv cov keeb kwm 30 xyoo, cov qauv database no muaj nuj nqis heev. Lawv tau pom tias cov qib steel sib txawv coj li cas hauv lawv lub khw hauv pem teb, uas yog qhov kev paub tsis raug cai. Koj tsis tuaj yeem tau txais qhov ntawd los ntawm tus qauv CAD ib leeg.
Qhov twg Steel Sand Casting ua rau kev nkag siab (Thiab qhov twg nws tsis)
Nws tsis yog ib qho kev daws teeb meem universal. Rau siab-precision, nyias-walled, los yog loj heev nyob rau hauv geometries, peev casting los yog plhaub molding tej zaum yuav zoo dua. Tab sis rau qhov hnyav ntawm 50kg mus rau ob peb tons, nrog cov duab yooj yim los yog nruab nrab, xuab zeb casting yog huab tais. Xav txog ib qho counterweight rau excavator, los yog lub ntsiab ncej rau hydraulic xovxwm. Cov cuab yeej siv (ntoo lossis urethane qauv) tus nqi qis, thiab cov qauv kev hloov pauv tau yooj yim rau kev haum.
Kuv nco qab txog qhov project rau cov chaw tsim khoom siv mining. Lawv xav tau cov iav loj loj, txog 800kg txhua, hauv 4140 hlau. Thawj qhov kev xav yog forge lawv, tab sis lub sij hawm ua cov hmoov txhuas thiab cov nqi rau kev tuag yog txwv tsis pub rau qhov ntau. Peb mus nrog cov xuab zeb casting, siv cov xuab zeb chromite rau kev tiv thaiv kom ua tiav qhov zoo dua li-cam khwb cia saum npoo tiav ntawm iav OD. Qhov tseem ceeb yog kev pub noj thiab nce kev tsim kom muaj suab nrov hauv ntu hub, uas yuav tom qab nqa cov hniav iav. Nws ua haujlwm, thiab tus nqi tsev yog kwv yees li 40% qis dua li cov lus hais forged.
Qhov kev txwv, ntawm chav kawm, yog nto tiav thiab qhov ntev ntev. Koj tab tom saib ntawm qhov raug roughness ntawm Ra 12.5-25 μm, thiab kam rau ua raws li ISO 8062 CT 10-13 ntau yam, nyob ntawm qhov loj me. Qhov ntawd txhais tau tias koj yuav tsum npaj rau machining nyiaj pub rau ntawm qhov tseem ceeb datum nta thiab sealing nto. Txhua tus neeg uas xav kom muaj cov duab zoo nkauj tiav ncaj qha los ntawm cov xuab zeb pwm yog teeb tsa lawv tus kheej rau kev poob siab thiab yuav thuam cov txheej txheem tsis ncaj ncees.
Qhov Txuas Tseem Ceeb: Los ntawm Casting mus rau qhov kawg
Qhov no yog qhov uas ntau qhov chaw tsim khoom poob qis, thiab qhov chaw muab khoom siv sib xyaw ntxiv tus nqi tiag tiag. Ib qho xuab zeb-cam khwb cia hlau yog yuav luag tsis yog cov khoom kawg. Nws xav tau machining, feem ntau kho cua sov, thiab kuaj. Muaj lub peev xwm machining hauv tsev, lossis hauv kev sib koom ua ke zoo li QSY ua nrog lawv CNC machining division, tshem tawm ib txheej loj ntawm logistics, liam-shifting, thiab zoo ambiguity.
Thaum tib lub koom haum uas pours lub casting kuj tshuab nws, lawv muaj ib tug vested txaus siab kom tau lub casting txoj cai. Lawv paub qhov twg cov cheeb tsam yuav shrinkage yog, yog li lawv tuaj yeem kho cov khoom lag luam raws li. Lawv nkag siab txog qhov muaj peev xwm rau qhov nyuaj ntawm qhov txias txias, yog li lawv tuaj yeem npaj cov cuab yeej txoj hauv kev thiab xaiv cov ntxig ntxig rau nws. Kuv tau nyob hauv ntau qhov xwm txheej uas lub chaw tsim khoom tau cem tus kws kho tshuab rau 'tsis tu,' thiab tus kws kho tshuab ua haujlwm rau qhov chaw tsim khoom rau 'qhov nyuaj thiab qhov khoob.' Nws yog lub voj voog lom uas tua cov haujlwm.
Rau cov ntaub ntawv zoo li stainless hlau los yog cov alloys tshwj xeeb QSY hais txog - nickel-based lossis cobalt-based - qhov kev sib koom ua ke no tseem ceeb dua. Cov alloys no nyuaj rau tshuab thiab kim. Ib qho kev tsis xws luag uas rhuav tshem ib feem tom qab 80% ntawm lub tshuab ua tiav yog qhov poob nyiaj txiag loj heev. Lub hauv paus kev xav yuav tsum txuas ntxiv mus los ntawm tag nrho cov khoom muaj nqis.
Common Pitfalls thiab Yuav Ua Li Cas Rau Lawv
Txias kaw thiab mistruns yog cov teeb meem classic nrog hlau hauv cov xuab zeb pwm. Hlau poob cua sov sai. Yog hais tias lub qhov rooj kaw lus ntev dhau los yog nyias, los yog qhov kub thiab txias yog tawm los ntawm cov npoo me me, cov hlau tuaj yeem khov ua ntej sau pwm. Cov tshuaj tsis yog tsuas yog cranking qhov kub thiab txias - uas tuaj yeem ua rau lwm yam teeb meem xws li shrinkage ntau dhau thiab pwm yaig. Nws yog hais txog kev tsim ib lub rooj vag nrog rau qhov chaw choke, siv ntau lub ingates, thiab qee zaum txawm tias cua sov cov pwm rau loj heev, complex castings.
Shrinkage porosity yog lwm yam tsiaj nyaum loj. Steel muaj ib tug siab volumetric shrinkage. Koj xav tau cov risers (feeders) uas loj txaus thiab muab tso rau kom raug rau cov kua hlau rau cov khoom sib zog kom txog thaum lawv muaj zog tag nrho. Khoos phis tawj simulation pab tam sim no, tab sis nws tseem xav tau kev lees paub. Peb ib zaug simulated lub cev valve, thiab software hais tias peb xav tau peb risers. Raws li txoj haujlwm yav dhau los zoo sib xws, peb tau siv plaub qhov me me hauv ntau qhov chaw. Lub cev casting yog suab; lub simulation tau me ntsis misjudged lub txias dynamics ntawm ib tug tshwj xeeb xuab zeb core. Kev paub tseem trumps txoj kev xav ntshiab.
Dimensional drift tshaj ib tug ntau lawm khiav yog ib tug hloov maj mam killer. Cov qauv ntoo tuaj yeem nqus dej noo thiab o. Cov txheej txheem molding nws tus kheej tuaj yeem muaj qhov sib txawv - xuab zeb compaction, core hloov. Rau kev ua haujlwm ntev, nws yog qhov tsim nyog los teem sijhawm kuaj xyuas ib ntus ntawm 'thawj-tawm' casting qhov tseem ceeb ua ntej machining tag nrho cov khoom. Nws cawm lub ntiaj teb kev mob.
Saib daim duab loj dua
Yog li, yog steel xuab zeb casting ib tug tuag kos duab? Tsis yog kiag li. Nws yog evolving. Lub hauv paus ntawm kev hloov hluav taws xob thiab kev sib koom ua ke tsis hloov, tab sis cov cuab yeej nyob ib puag ncig lawv ua. Zoo dua xuab zeb reclamation systems ua rau ib puag ncig thiab kev lag luam. 3D luam ntawv ntawm cov xuab zeb pwm thiab cov cores yog qhib qhov rooj rau prototyping thiab complex geometries uas ib zaug ua tsis tau nrog cov qauv ib txwm, tab sis rau high-volume ntau lawm, kev lag luam tseem nyiam cov cuab yeej siv.
Tus nqi tiag tiag, hauv kuv qhov kev xav, nyob hauv cov chaw tsim khoom lag luam uas kho nws raws li kev daws teeb meem tsis yog khoom muag. Nws yog hais txog kev nkag siab tag nrho cov lus ntawm ib feem, los ntawm CAD qauv mus rau qhov tiav, machined tivthaiv hauv cov neeg siv khoom sib dhos. Cov neeg muag khoom uas muab qhov ntawd, sib txuas cov txheej txheem xws li casting thiab precision machining nyob rau hauv ib lub ru tsev, muab kev ntseeg siab uas nyuaj rau kev sib tw. Thaum koj saib ntawm lub tuam txhab muab, zoo li lub plhaub pwm sib xyaw ua ke, peev casting, thiab CNC machining cov kev pabcuam tau piav qhia txog https://www.tsingtaocnc.com, nws taw qhia lub peev xwm los daws tsis yog lub ncuav xwb, tab sis kev paub txog kev ua haujlwm. Qhov ntawd yog qhov chaw ua lag luam mus.
Thaum kawg, ua tiav steel xuab zeb casting yog kev sib tham - nruab nrab ntawm tus tsim qauv thiab tus tsim engineer, nruab nrab ntawm metallurgist thiab machinist. Nws yog hais txog kev tswj cov kev cia siab, kev nkag siab txog kev tsis txaus siab, thiab siv ntau xyoo ntawm kev sib koom ua ke, qee zaum mob, kev paub dhau los ua cov hlau molten rau hauv ib yam dab tsi muaj zog thiab txhim khu kev qha. Nws yeej tsis yog hais txog cov xuab zeb xwb.
