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Dab tsi yog aluminium alloy tuag-casting hom?

Sep 11, 2023 Tso lus

Nyob rau hauv cov txheej txheem ntawm txhuas alloy tuag castings, ntau yam tsis xws luag feem ntau inevitably tshwm sim, ib qho ntawm feem ntau complex thiab hloov tsis xws luag yog "strain".

Lub strain defect ntawmaluminium alloy tuag-casting qhov chawyog hais txog cov kab kab tawm kab uas tshwm sim hauv pwm qhib kev taw qhia thaum aluminium alloy tuag-casting qhov chaw raug cais tawm ntawm pwm. Cov cim no feem ntau muaj qhov tob. Hauv qhov xwm txheej hnyav, lawv tuaj yeem ua rau tag nrho qhov chaw tshwm sim. Lim tej yam kev mob.

 

aluminum alloy die-casting

Muaj ntau ntau qhov laj thawj rau qhov tsis xws luag hauv aluminium alloy tuag castings:

  1. Pwm nto puas: Kev puas tsuaj ntawm cov pwm kab noj hniav, xws li khawb los yog dents, yuav ua rau cov hlau molten tau yooj yim ua raws thaum txhaj rau hauv pwm, ua rau muaj qhov tsis xws luag.
  2. Cov pwm ejection kev taw qhia tsis muaj txoj kab nqes los yog txoj kab nqes me me dhau: Yog tias cov pwm ejection kev taw qhia tsis muaj qhov tsim nyog txoj kab nqes los yog txoj kab nqes me dhau, nws yuav ua rau muaj qhov cuam tshuam ntawm adhesion ntawm cov hlau molten thiab pwm nto, ua rau lim tsis xws luag.
  3. Unbalanced ejection force: Tsis sib npaug ejection quab yuam nyob rau hauv ntau qhov chaw yuav ua rau cov txhuas alloy tuag-casting qhov chaw yuav raug rau lub zog tsis sib xws thaum lub sij hawm de-molding txheej txheem, uas yog nquag strain.
  4. Looseness ntawm pwm: Looseness ntawm cov pwm thaum lub sij hawm tsim khoom yuav ua rau muaj qhov sib txawv los yog tsis sib xws ntawm cov pwm sab hauv ntawm cov pwm thiab cov kua txhuas, uas ua rau muaj qhov tsis xws luag. Qhov ua rau no feem ntau nyuaj rau kev txheeb xyuas.
  5. Pouring kub yog siab dhau los yog qis dhau: Txawm hais tias muaj qhov tsis zoo ntawm cov kab mob tshwm sim los ntawm qhov no, qhov kub thiab txias uas siab dhau yuav ua rau cov kua alloy ua raws li cov pwm pwm, ua rau muaj qhov tshwm sim ntawm cov pwm; Thaum lub sij hawm nchuav kub uas qis dhau lawm, cov kua txhuas txhuas ua kom khov sai heev, thiab cov kab mob tsis zoo kuj tuaj yeem tshwm sim.

 

Txhawm rau daws qhov teeb meem tsis xws luag ntawm aluminium alloy tuag castings, cov hauv qab no tuaj yeem siv tau:

  1. Kho qhov kev puas tsuaj ntawm cov pwm thiab xyuas kom meej qhov smoothness ntawm pwm kab noj hniav nto.
  2. Kho txoj kab nqes ntawm cov pwm kom txoj kab nqes hauv cov pwm ejection kev taw qhia ua tau raws li qhov yuav tsum tau ua, txo qhov adhesion ntawm cov hlau molten mus rau pwm nto, thiab txo qhov tshwm sim ntawm kev tsis haum.
  3. Sib npaug lub zog ejection los xyuas kom meej lub zog ejection sib txawv nyob rau hauv ntau qhov chaw kom tsis txhob muaj zog tsis sib xws thaum lub sij hawm de-molding txheej txheem, yog li txo qhov tsis xws luag.
  4. Fasten lub pwm los xyuas kom meej tias cov pwm tswj cov qauv ruaj khov thaum lub sij hawm tsim khoom thiab tsis txhob cuam tshuam cov teeb meem tshwm sim los ntawm xoob pwm.
  5. Tswj tsim nyog pouring kub thiab pwm kub. Raws li cov txheej txheem casting tshwj xeeb, tswj qhov kub thiab txias pwm nyob rau hauv qhov tsim nyog kom tsis txhob muaj teeb meem strain tshwm sim los ntawm qhov kub thiab txias dhau.
  6. Hloov tus neeg sawv cev tso tawm lossis siv cov tshuaj tiv thaiv kab mob. Xaiv tus neeg sawv cev tsim nyog thiab xyuas kom meej tias nws ua haujlwm zoo. Xwb, xav txog kev siv cov xim pleev xim los txo cov adhesion ntawm cov hlau molten rau pwm nto.
  7. Kho cov ntsiab lus hlau ntawm aluminium alloy. Nquag, cov ntsiab lus hlau yuav tsum tsis pub tsawg dua 0.8 feem pua ​​kom txo tau qhov tshwm sim ntawm cov kab mob.
  8. Kho lub sij hawm txias thiab tsim nyog tswj lub sij hawm txias raws li cov txheej txheem casting tshwj xeeb kom tsis txhob muaj teeb meem cuam tshuam los ntawm lub sijhawm txias dhau los lossis luv luv.
  9. Hloov kho lub rooj vag qauv, hloov cov kev taw qhia ntws ntawm molten aluminium, txo qhov adhesion ntawm molten hlau mus rau pwm nto, thiab txo qhov tshwm sim ntawm strain defects.
  10. Xyuas kom meej tias qhov parallelism ntawm lub tshuab tuag-casting ua tau raws li qhov yuav tsum tau ua kom tsis txhob muaj kev cuam tshuam los ntawm kev quab yuam tsis sib xws.

Yuav kom daws tau qhov teeb meem ntawm cov teeb meem tsis xws luag hauv aluminium alloy tuag castings, nws yog ib qho tsim nyog yuav tsum tau ua tib zoo xav txog cov ntsiab lus saum toj no thiab siv cov kev kho mob sib xws.

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