Kev nkag siab zoo tshaj plaws thiab cov ncauj lus kom ntxaws txog kev siv tshuab casting! Koj puas tau sau nws?

Cov txheej txheem ntau lawm ntawm cov kua hlau tso rau hauv cov pwm kab noj hniav uas tsim nyog rau cov duab thiab qhov loj ntawm qhov, thiab tos kom nws txias thiab khov kom tau txais ib qho khoob los yog ib feem, feem ntau hu ua hlau ua kua los yog casting.
Txheej txheem khiav: kua hlau → filling → solidification shrinkage → casting

Cov yam ntxwv ntawm txheej txheem:
1. Nws tuaj yeem tsim qhov chaw nrog txhua yam duab, tshwj xeeb tshaj yog cov uas muaj cov kab noj hniav zoo nkauj.
2. Muaj zog adaptability, unrestricted alloy hom, thiab yuav luag unlimited casting loj.
3. Cov khoom siv dav dav, cov khoom pov tseg tuaj yeem rov qab tau, thiab cov cuab yeej siv peev nyiaj tsawg.
4. Cov khib nyiab siab, qhov chaw tsis zoo, thiab kev ua haujlwm tsis zoo.
Casting Classification:

(1) Sand casting
Xuab zeb casting: Ib txoj hauv kev los ua cov castings hauv cov xuab zeb pwm. Hlau, hlau, thiab feem ntau tsis-ferrous alloy castings tuaj yeem tau los ntawm txoj kev xuab zeb casting.
Txheej txheem khiav:

Xuab zeb casting txheej txheem ntws
Technical nta:
1. Haum rau kev ua cov blanks nrog cov duab complex, tshwj xeeb tshaj yog cov uas muaj complex puab kab noj hniav;
2. Kev hloov pauv dav dav thiab tus nqi qis;
3. Rau qee cov ntaub ntawv uas tsis zoo plasticity, xws li cam khwb cia hlau, xuab zeb casting yog tib txoj kev tsim rau kev tsim lawv cov khoom lossis qhov khoob.
Daim ntawv thov: Castings rau automotive engine lub tog raj kheej blocks, lub tog raj kheej taub hau, crankshafts, thiab lwm yam
(2) Kev nqis peev casting
Peev casting: feem ntau yog hais txog cov txheej txheem casting qhov twg pwm yog tsim los ntawm cov khoom fusible, thiab ob peb txheej ntawm cov ntaub ntawv refractory yog coated rau saum npoo ntawm pwm los ua lub plhaub. Tom qab ntawd cov pwm yog yaj thiab tawm ntawm lub plhaub kom tau cov pwm tsis muaj qhov sib cais. Tom qab kub kub calcination, nws tuaj yeem sau nrog xuab zeb thiab nchuav. Feem ntau hu ua "wax poob casting".
Txheej txheem khiav:

Kev nqis peev casting txheej txheem ntws
Cov yam ntxwv txheej txheem
Qhov zoo:
1. High dimensional thiab geometric raug;
2. High deg roughness;
3. Muaj peev xwm ntawm castings nrog cov duab nyuaj thiab tsis muaj kev txwv tsis pub cov hlau tsis muaj zog.
Qhov tsis zoo: cov txheej txheem nyuaj thiab cov nqi siab
Daim Ntawv Thov: Tsim nyog rau kev tsim cov khoom me me nrog cov duab nyuaj, cov kev xav tau siab precision, lossis nyuaj rau lwm yam kev ua, xws li turbine cav hniav.
(3) Tuag casting
Tuag casting: Nws yog kev siv lub siab ceev kom ceev cov hlau molten mus rau hauv kab noj hniav ntawm precision hlau pwm, thiab cov hlau molten txias thiab solidifies nyob rau hauv siab los tsim ib tug casting.
Txheej txheem khiav:

Cov yam ntxwv txheej txheem
Qhov zoo:
1. Thaum lub sij hawm tuag casting, cov hlau ua kua bears siab thiab muaj tus nqi khiav ceev
2. Cov khoom zoo, ruaj khov loj, thiab kev sib hloov zoo;
3. Kev ua haujlwm siab ntau lawm thiab nquag siv cov pwm tuag-casting;
4. Haum rau kev tsim khoom loj nrog cov txiaj ntsig zoo ntawm kev lag luam.
Qhov tsis zoo:
1. Castings yog nquag ua rau me me pores thiab shrinkage porosity.
2. Tuag castings muaj plasticity tsawg thiab tsis haum rau kev ua hauj lwm nyob rau hauv tej yam loads thiab vibrations;
3. Thaum siab melting point alloys yog tuag-casting, lub pwm lub neej yog tsawg, uas cuam tshuam rau expansion ntawm tuag-casting ntau lawm.
Daim ntawv thov: Tuag castings yog thawj zaug siv nyob rau hauv automotive thiab instrumentation industries, thiab tom qab ntawd maj mam nthuav mus rau ntau yam industries, xws li kev ua liaj ua teb machinery, tshuab cuab yeej kev lag luam, electronics kev lag luam, lub teb chaws tiv thaiv kev lag luam, computer, khoom kho mob, moos, koob yees duab, thiab cov khoom siv niaj hnub. .
(4) Tsis tshua muaj siab casting
Tsis tshua muaj siab casting: yog hais txog txoj kev sau cov pwm nrog kua hlau nyob rau hauv qis siab (0.02-0.06 MPa) thiab crystallizing nyob rau hauv siab los tsim ib tug casting.
Txheej txheem khiav:

Technical nta:
1. Lub siab thiab ceev thaum lub sij hawm nchuav tuaj yeem hloov kho, ua kom haum rau ntau yam pwm pwm (xws li pwm hlau, xuab zeb pwm, thiab lwm yam), casting ntau yam alloys thiab castings ntawm ntau qhov ntau thiab tsawg;
2. Kev siv hauv qab txhaj tshuaj molding, cov hlau ua kua filling yog du thiab tsis muaj splashing, uas tuaj yeem zam cov pa nkag thiab yaig ntawm cov pwm phab ntsa thiab cov tub ntxhais, thiab txhim kho qhov tsim nyog tus nqi ntawm castings;
3. Castings crystallize nyob rau hauv siab, nrog ib tug ntom microstructure, meej contours, du nto, thiab siab mechanical zog, ua rau lawv tshwj xeeb zoo rau casting loj thiab nyias-walled qhov chaw;
4. Tshem tawm qhov xav tau ntawm shrinkage risers, tus nqi siv hlau yog nce mus rau 90-98%;
5. Kev siv zog tsawg, kev ua haujlwm zoo, cov khoom siv yooj yim, thiab kev siv yooj yim ntawm kev siv tshuab thiab automation.
Daim ntawv thov: Feem ntau raws li cov khoom siv ib txwm muaj (lub tog raj kheej taub hau, lub log hub, lub tog raj kheej ncej, thiab lwm yam).
(5) Centrifuge casting
Centrifugal casting: Ib txoj kev casting uas cov hlau molten yog nchuav rau hauv cov pwm tig thiab ntim nrog lub zog centrifugal kom khov thiab tsim pwm.
Txheej txheem khiav:

Cov yam ntxwv txheej txheem
Qhov zoo:
1. Yuav luag tsis muaj hlau noj nyob rau hauv lub pouring system thiab riser system, kev txhim kho cov txheej txheem yield;
2. Thaum tsim cov hollow castings, cov tub ntxhais tsis xav tau, yog li cov hlau filling muaj peev xwm tuaj yeem txhim kho zoo heev thaum tsim cov tubular castings ntev;
3. Cov khoom siv ntom ntom ntom ntom ntom ntom, tsawg dua qhov tsis xws luag xws li pores thiab slag suav, thiab cov khoom siv hluav taws xob;
4. Ib qho yooj yim los tsim cov khoom sib xyaw hlau castings rau lub tog raj kheej thiab lub tes tsho.
Qhov tsis zoo:
1. Muaj qee qhov kev txwv thaum siv nws los tsim cov khoom tshwj xeeb zoo li cov castings;
2. Lub cheeb ntawm lub puab qhov nyob rau hauv lub casting yog tsis raug, nto ntawm lub puab lub qhov yog kuj ntxhib, qhov zoo yog tsis zoo, thiab muaj ib tug loj machining nyiaj;
3. Castings yog nquag rau kev sib cais tshwj xeeb.
Daim ntawv thov:
Centrifugal casting yog thawj zaug siv los tsim cov kav dej cam khwb cia, thiab nws tau siv dav hauv kev lag luam xws li metallurgy, mining, tsheb thauj mus los, dej thiab dej siv tshuab, aviation, tiv thaiv teb chaws, thiab tsheb ob leeg hauv tsev thiab thoob ntiaj teb los tsim cov hlau, hlau, thiab non-ferrous carbon alloy castings. Kev tsim cov castings xws li centrifugal cam khwb cia hlau kav, sab hauv combustion engine cylinder liners, thiab ncej tes tsho yog tshwj xeeb tshaj yog muaj.
(6) Lub ntiajteb txawj nqus tuag casting
Hlau pwm casting: yog hais txog ib txoj kev molding uas cov kua hlau tau ntim rau hauv cov pwm hlau nyob rau hauv qhov kev txiav txim ntawm lub ntiajteb txawj nqus thiab txias thiab solidified nyob rau hauv pwm kom tau ib tug casting.
Txheej txheem khiav:

Cov yam ntxwv txheej txheem
Qhov zoo:
1. Lub thermal conductivity thiab kub muaj peev xwm ntawm cov pwm hlau yog siab, qhov txias txias yog ceev, cov qauv casting yog ntom, thiab cov khoom siv kho tshuab yog li 15% siab dua cov xuab zeb pwm castings.
2. Castings uas tuaj yeem ua tiav qhov siab qhov tseeb thiab qhov tsis zoo ntawm qhov roughness, thiab muaj kev ruaj ntseg zoo.
3. Los ntawm tsis siv lossis tsis tshua siv cov xuab zeb cores, ib puag ncig zoo dua, cov plua plav thiab cov pa phem raug txo, thiab kev siv zog txo qis.
Qhov tsis zoo:
1. Cov pwm hlau nws tus kheej tsis muaj breathability, thiab tej yam kev ntsuas yuav tsum tau coj mus rau export huab cua nyob rau hauv lub pwm kab noj hniav thiab cov roj generated los ntawm cov xuab zeb core;
2. Cov pwm hlau tsis muaj cov khoom yielding thiab nquag tawg thaum lub sij hawm casting solidification;
3. Lub voj voog tsim ntawm cov pwm hlau yog ntev thiab tus nqi siab. Yog li ntawd, tsuas yog hauv kev tsim khoom loj tuaj yeem ua rau pom kev lag luam zoo.
Daim ntawv thov: Hlau pwm casting yog tsim rau huab hwm coj ntau lawm ntawm nonferrous alloy castings xws li txhuas alloys thiab magnesium alloys nrog complex duab, raws li zoo raws li rau zus tau tej cov castings, ingots, thiab lwm yam hlau hlau.
(7) Lub tshuab nqus tsev tuag casting
Nqus casting: txheej txheem tuag-casting siab heev uas tshem tawm los yog txo cov porosity thiab yaj gases nyob rau hauv tuag-casting pwm kab noj hniav thaum lub sij hawm tuag-casting txheej txheem, yog li txhim kho cov neeg kho tshuab zog thiab nto zoo ntawm cov tuag-casting qhov chaw.
Txheej txheem khiav:

Cov yam ntxwv txheej txheem
Qhov zoo:
1. Tshem tawm lossis txo cov porosity sab hauv hauv kev tuag castings, txhim kho cov khoom siv thiab qhov zoo ntawm cov tuag castings, thiab txhim kho cov txheej txheem kev ua haujlwm;
2. Txo qhov rov qab siab ntawm cov pwm kab noj hniav tuaj yeem siv cov hlau nplaum uas muaj qhov tshwj xeeb qis thiab kev ua haujlwm tsis zoo, thiab nws tuaj yeem siv cov tshuab me me los nrum loj dua;
3. Txhim kho kev ua kom zoo dua qub, muaj peev xwm tuag-casting thinner castings;
Qhov tsis zoo:
1. Cov qauv kev sib khi ntawm cov pwm yog qhov nyuaj, ua rau nws nyuaj rau kev tsim thiab nruab, ua rau cov nqi ntau dua;
2. Yog hais tias lub tshuab nqus tsev tuag-casting txoj kev tsis tswj kom zoo, cov nyhuv yuav tsis tseem ceeb heev.
(8) Squeezing tuag casting
Squeeze casting: Nws yog ib txoj hauv kev ntawm solidification thiab ntws ua kua los yog semi-khoom hlau nyob rau hauv siab siab, ncaj qha mus tau workpieces los yog blanks. Nws muaj qhov zoo ntawm kev siv siab ntawm cov kua hlau, cov txheej txheem yooj yim, thiab ruaj khov zoo, ua rau nws muaj peev xwm txuag hluav taws xob thiab muaj peev xwm hlau tsim tshuab.
Txheej txheem khiav:

Direct nyem casting: tshuaj tsuag txheej, ncuav alloy, pwm kaw, pressurization, siab tuav, siab nyem, pwm sib cais, dawb paug demolding, thiab resetting;
Indirect nyem casting: txheej txau, pwm kaw, pub mis, pwm filling, pressurization, siab tuav, siab nyem, pwm sib cais, dawb paug demolding, thiab resetting.
Technical nta:
1. tuaj yeem tshem tawm cov teeb meem sab hauv xws li porosity, shrinkage, thiab porosity;
2. Tsawg nto roughness thiab siab qhov tseeb;
3. tuaj yeem tiv thaiv qhov tshwm sim ntawm cov kab nrib pleb;
4. Ib qho yooj yim mus cuag mechanization thiab automation.
Daim ntawv thov: tuaj yeem siv los tsim ntau hom alloys, xws li txhuas alloys, zinc alloys, tooj liab alloys, ductile hlau, thiab lwm yam
(9) Poob ua npuas ncauj casting
Poob ua npuas ncauj casting (tseem hu ua tag nrho cov pwm casting): Nws yog ib txoj kev tshiab casting uas ua ke nrog cov qauv paraffin lossis ua npuas ncauj zoo ib yam li qhov loj thiab cov duab ntawm cov castings rau hauv cov qauv pawg, txhuam thiab dries refractory coatings, faus lawv nyob rau hauv qhuav quartz xuab zeb rau vibration molding, nchuav lawv nyob rau hauv qhov tsis zoo siab, vaporizes cov qauv, occupies pwm txoj hauj lwm nrog kua hlau, thiab cov ntaub ntawv castings tom qab solidification thiab txias.
Cov txheej txheem ntws: ua ntej foaming → foaming forming → txheej immersion → ziab → shaping → pouring → xuab zeb poob → tu

Technical nta:
1. High casting raug, tsis muaj xuab zeb core, txo lub sijhawm ua haujlwm;
2. Tsis muaj parting nto, saj zawg zog tsim, high degree ntawm kev ywj pheej;
3. Kev tsim khoom huv si, tsis muaj kuab paug;
4. Txo kev nqis peev thiab cov nqi tsim khoom.
Daim ntawv thov: Haum rau kev tsim ntau qhov ntau thiab tsawg ntawm precision castings nrog cov txheej txheem nyuaj, nrog cov hom tsis muaj kev txwv thiab cov khoom siv ntau lawm. Xws li grey cam khwb cia hlau cav casing, siab manganese steel khoov kav, thiab lwm yam.
(10) Nruam casting
Nruam casting: Nws yog ib txoj hauv kev zoo tshaj plaws casting uas txuas ntxiv cov hlau molten rau hauv cov pwm tshwj xeeb hlau hu ua crystallizer. Lub solidified (crust) casting yog txuas ntxiv rub tawm los ntawm lwm qhov kawg ntawm crystallizer, thiab nws tuaj yeem tau txais castings ntawm txhua qhov ntev lossis qhov ntev.
Txheej txheem khiav:

Technical nta:
1. Vim yog qhov txias txias ntawm cov hlau, cov khoom siv lead ua yog ntom, cov qauv zoo ib yam, thiab cov khoom siv kho tshuab zoo;
2. Txuag hlau thiab txhim kho cov txiaj ntsig;
3. Simplified cov txheej txheem, tshem tawm qhov xav tau ntawm styling thiab lwm yam txheej txheem, yog li txo kev siv zog; Qhov chaw tsim khoom tsim nyog kuj tau txo qis;
4. Nruam casting ntau lawm yog ib qho yooj yim mus cuag mechanization thiab automation, kev txhim kho ntau lawm efficiency.
Daim ntawv thov: Nruam casting tuaj yeem siv los nrum ntev castings nrog cov duab tsis hloov pauv, xws li ingots, slabs, tuav, kav, thiab lwm yam, xws li steel, hlau, tooj liab alloys, aluminium alloys, magnesium alloys, thiab lwm yam.