Tuag Casting

Cov hauv qab no yog tsib qhov kev lag luam saum toj kawg nkaus uas tau txais txiaj ntsig zoo los ntawm kev siv cov khoom tuag-casting:
Automotive kev lag luam
Kev lag luam tsheb yog qhov loj tshaj plaws ntawm kev yuav khoom ntawm cov khoom siv tuag. Los ntawm 2026, nws tau kwv yees kom ncav cuag tus nqi lag luam ntawm usd 58.4 billion nrog rau kev loj hlob txhua xyoo (CAGR) ntau dua 6.19%. Cov khoom tseem ceeb xws li cov cav cav ua los ntawm cov hlau cam khwb cia lossis aluminium alloy muab lub zog thiab kev hloov hluav taws xob zoo uas xav tau rau cov tsheb ua haujlwm siab.
Kev tsim kho kev lag luam
Tuag-cam khwb cia qhov chaw yog dav siv nyob rau hauv kev tsim kho kev lag luam vim lawv lub zog thiab lub teeb yuag zog. Aluminium hlau castings yog siv nyob rau hauv lub qhov rais thav duab, ru tsev superstructures, lub tsev thav duab, txuas hniav, thiab skyscrapers. Cov khoom no muaj kev ruaj khov thaum txo qhov hnyav ntawm cov qauv.
Kev lag luam kho mob
Hauv kev lag luam kev noj qab haus huv, cov cuab yeej kho mob nyuaj cia siab rau qhov tseeb ntawm qhov tuag-cam khwb cia rau kev ua tau zoo thiab yoog raws. Ultrasound systems, pacemakers, dialysis equipments, thiab kho mob robots yuav tsum intricate Cheebtsam uas yuav ua tau zoo tsim los ntawm tuag-casting.
Zog sector
Die-cast Cheebtsam yog siv nyob rau hauv ntau yam kev siv nyob rau hauv lub renewable zog sector. Piping, drilling machinery, li qub, impellers rau cua turbines, thiab brackets rau hnub ci vaj huam sib luag yog tag nrho cov piv txwv ntawm qhov chaw ua los ntawm cov txheej txheem tuag-casting. Cov khoom siv no muab lub zog thiab kav ntev thaum ua tau raws li qhov kev thov rau cov khoom siv hluav taws xob ruaj khov.
Electronics kev lag luam
Kev lag luam hluav taws xob siv hluav taws xob feem ntau siv cov khoom siv tuag-cam khwb cia hauv cov khoom xws li 5G lub hauv paus chaw nres tsheb vaj tse, smartphones, drones, computers tus kheej, thiab cov khoom siv hauv tsev. Lub siab precision ua tiav los ntawm kev tuag casting kom ntseeg tau tias kev ua tau zoo thiab ua haujlwm ntev hauv cov khoom siv hluav taws xob no.

Muaj ntau yam alloys thiab hlau uas tuaj yeem siv rau hauv cov txheej txheem tuag-casting. Hom hlau siv cuam tshuam cov yam ntxwv kawg ntawm cov khoom tsim thiab cov khoom no muaj ntau yam kev siv thiab kev siv. Cov hlau feem ntau siv hauv cov txheej txheem yog zinc, aluminium, thiab magnesium. Txawm hais tias muaj ntau yam kev xaiv xws li tooj liab, txhuas, tooj dag, thiab tin muaj nyob, lawv tsis tshua muaj thiab tsuas yog siv rau cov haujlwm tshwj xeeb.

Aluminium tuag-casting
Aluminium yog qhov kev xaiv hlau nrov heev hauv kev tuag casting. Aluminium yog lub teeb pom kev zoo, uas yog qhov zoo tagnrho rau kev tsim cov khoom sib sib zog nqus nrog lub zog zoo. Aluminium kuj tseem tuaj yeem tiv taus qhov kub thiab txias thiab muaj ntau txoj kev ua tiav. Aluminium kuj yog ib qho yooj yim rau cam khwb cia thiab muaj kev pom zoo thermal thiab hluav taws xob conductivity. Tag nrho cov yam ntxwv no ua ke ua rau txhuas tuag-casting yog qhov kev xaiv zoo heev rau kev tsim cov khoom siv hauv tshuab, lub zog, tsheb, thiab kev lag luam aerospace feem.

Zinc tuag-casting
Zinc kuj yog piv rau txhuas nyob rau hauv cov nqe lus ntawm muaj koob meej. Nws yog tsuas yog siv rau hauv kev tsim cov tsheb thiab cov khoom siv kho mob. Zinc muaj qhov sib txawv zoo nkauj zoo nkauj thiab zinc alloy tuag castings yog zoo meej rau kev tsim cov khoom uas xav tau lub ntsej muag ntse. Zinc Cheebtsam kuj muaj qhov chaw du thiab tuaj yeem ua los yog pleev xim rau raws li qhov xav tau.
Zinc kuj tseem muaj cov ntsiab lus melting tsawg thiab muaj lub zog tsawg dua thaum tsim cov khoom siv thaum tseem txuas ntxiv lub neej tag nrho ntawm cov pwm siv los tsim cov khoom, ntxiv tus nqi rau tag nrho cov txheej txheem. Zinc kuj tseem muaj kev tiv thaiv corrosion siab thiab suav tias yog qhov ruaj khov, ruaj khov, thiab ruaj khov.

Magnesium tuag-casting
Ntawm peb qhov kev xaiv hlau nrov tshaj plaws, magnesium muab qhov yooj yim tshaj plaws ntawm machining. Qhov zoo kawg lub zog-rau-qhov hnyav piv nrog nws lub teeb ua rau nws yooj yim tshaj plaws alloy feem ntau siv hauv kev tuag-casting. Qhov zoo ntawm kev siv magnesium muaj xws li castability zoo dua, tsis kam mus rau hydrogen porosity, thiab zoo heev fluidity piv rau nws cov txhuas thiab tooj liab counterparts.
Cov hlau tseem paub txog nws cov EMI (electromagnetic cuam tshuam) thiab RFI (xov tooj cua zaus cuam tshuam) cov khoom tiv thaiv uas ua rau nws yog qhov kev xaiv zoo tshaj plaws rau cov khoom siv hluav taws xob thiab cov khoom sib txuas. Cov magnesium tuag casting hlau kuj tseem siv rau hauv kev tsim cov chaw kuaj thiab cov cuab yeej kho mob vim cov khoom no. Tsis tas li ntawd, magnesium yog kwv yees li 75% sib zog dua cov hlau thaum muaj lub zog zoo sib xws thiab kev ruaj ntseg zoo dua, ua rau nws yog qhov kev xaiv zoo rau kev siv cov net-shaped thiab nyias-walled casting daim ntaub ntawv.

Kev tuag casting suav nrog ntau cov txheej txheem sib txawv raws li lub ntsiab lus no, tab sis nws muaj peb txoj haujlwm tseem ceeb, uas yog cov pwm tas mus li, tseem hu ua lub ntiajteb txawj nqus tuag casting, tsis tshua muaj siab tuag casting, thiab siab-siab tuag casting. Qhov kev faib tawm no feem ntau yog nyob ntawm qhov sib txawv ntawm kev ua haujlwm los ntawm cov txheej txheem tuag casting kom yuam cov hlau molten ntws mus rau hauv cov kab noj hniav tuag. Tsis tas li ntawd, nrog rau txoj kev loj hlob ntawm casting technologies thiab cov ntaub ntawv sciences, kuj muaj ntau yam ntawm tuag casting txheej txheem tshwm sim nyob rau hauv kev lag luam los tsim txawv thiab tshwj xeeb casting Cheebtsam thiab cov qauv.

Permanent pwm casting
Permanent pwm casting, tseem hu ua lub ntiajteb txawj nqus tuag casting, yog ib tug tuag casting txheej txheem uas siv ib tug reusable pwm, lub thiaj li hu ua mus tas li pwm, feem ntau yog ua los ntawm cov khoom siv hlau. Nyob rau hauv cov txheej txheem casting no, lub ntiajteb txawj nqus ntawm molten hlau feem ntau yog ib qho tseem ceeb lub zog tsav lub molten hlau ntws, thiab cov solidification ntawm molten hlau tshwm sim nyob rau hauv atmospheric siab.
Tab sis nyob rau hauv lwm yam kev tuag-casting xws li centrifugal-casting txheej txheem, lub centrifugal quab yuam yog intently tsim los pab txhawb cov ndlwg ntawm molten hlau mus rau hauv lub complex kab noj hniav. Hauv kev nyem-casting, lub solidification tshwm sim nyob rau hauv ib qho kev thov sab nraud xws li cov txheej txheem ua ke qhov zoo ntawm casting thiab forging nyob rau hauv cov nqe lus ntawm cov khoom zoo, cov cuab yeej thiab cov txheej txheem muaj peev xwm los ua qhov zoo.

Tsawg-siab tuag casting
Nyob rau hauv low-pressure tuag casting (LPDC), molten hlau yog yuam kom ntws pab los ntawm cov cua tsis tshua muaj siab nrog lub siab ntau ntawm 20-100 kPa. Nyob rau hauv cov txheej txheem no, ib tug casting tuag yog ntsia saum lub qhov cub kaw uas muaj molten hlau. Lub raj refractory-lined riser txuas mus rau hauv qab ntawm qhov tuag mus rau hauv lub pas dej molten hlau thiab cov cua tsis tshua muaj siab yog ua haujlwm los tsav cov hlau molten nyob rau hauv lub cub tawg kom nce lub raj thiab nkag mus rau hauv qhov tuag kab noj hniav uas tsis tshua muaj turbulence.
Raws li solidification ntawm cov hlau molten, cov cua siab yog tso tawm thiab cov seem molten hlau nyob rau hauv lub riser raj ntog rov qab mus rau hauv lub cub tawg, ua raws li los ntawm qhib tuag thiab extraction ntawm casting raws li ib tug txaus txias thiab solidification. Daim ntawv thov ntawm cov txheej txheem no yog siv los ua axially symmetrical qhov chaw xws li lub log tsheb. Cov txiaj ntsig tseem ceeb suav nrog kev tswj xyuas qhov tseeb ntawm cov kab noj hniav tuag, cov hlau molten ntws sai thiab zoo los ntawm cov khoom noj khoom haus, txo cov oxide tsim thiab tiv thaiv porosity hauv cov castings. Piv nrog rau high-pressure tuag casting, lub ntsiab tsis zoo muaj xws li ntev casting voj voog thiab kuj thicker phab ntsa ntawm lub casting uas yuav ua tau.

High-pressure tuag casting
High-pressure tuag casting (HPDC) yog txheej txheem casting nyob rau hauv molten hlau poured rau hauv lub tes tsho txhaj tshuaj nyob rau hauv lub tuag casting tshuab yog sai sai txhaj rau hauv lub kaw tuag kab noj hniav nrog lub siab qhia los ntawm lub ceev ceev ntawm plunger los yog lub thiaj li hu ua piston raws. lub tes tsho txhaj tshuaj nyob rau hauv lub tshuab tuag casting.
Lub siab ua haujlwm feem ntau yog tshaj 7 MPa. Txij li thaum lub siab yog qhov siab thiab qhov ceev ntawm cov hlau molten ntws mus rau hauv qhov tuag kab noj hniav kuj zoo heev, lub sij hawm sau ntawm tag nrho cov txheej txheem casting yog luv luv, feem ntau nws yuav siv sij hawm ib feem ntawm ib tug thib ob xws li tsawg tshaj li 100 ms. Thaum cov kab noj hniav tuag lawm, lub siab tseem yog siv los ntawm kev txhaj tshuaj plunger xws li tias muaj ib qho kev siv zog ib txhij nyob rau hauv cov txheej txheem solidification. Nyob rau theem no, cov roj gas uas nyob rau hauv cov hlau thaum lub sij hawm ceev heev thiab turbulent kab noj hniav filling txheej txheem yuav raug squeezed tawm. Lub caij no, lub shrinkage ntawm cov hlau solidification tuaj yeem them nyiaj ib nrab vim tias ntau cov hlau raug thawb mus rau hauv qhov tuag kab noj hniav. Tam sim no, muaj ntau hom HPDC, xws li lub tshuab nqus tsev tuag casting, nyem casting thiab semisolid casting, thiab lwm yam.
HPDC yog dav siv los ua ntau yam qauv xws li lub cav thaiv los ntawm kev siv lub teeb alloys nrog rau txhuas thiab magnesium alloys. Qhov zoo tshaj plaws muaj xws li luv luv casting voj voog, haum rau nyias-walled Cheebtsam, thiab zoo nto zoo ntawm castings. Txawm li cas los xij, kuj tseem muaj qee qhov tsis zoo xws li kev nqis peev siab thiab cov nqi khiav lag luam, qhov nyuaj thiab kim tuag, thiab lub zog qis ntawm castings. Cov ntaub ntawv tseem ceeb siv rau txoj kev tuag casting no yog aluminium, zinc, magnesium thiab tooj liab-puag alloys.