Foundry-txoj kev thev naus laus zis thiab txheej txheem kev faib tawm

Foundry molding txheej txheem:

1. Lub ntiajteb txawj nqus Casting: Xuab Zeb Casting, Zog Casting. Lub hlau hlau muab nchuav mus rau hauv cov kab noj hniav los ntawm qhov sib tsoo ntawm cov hlau nws tus kheej.

2. Siab casting: tsis tshua muaj siab casting, siab nrum casting . Molten hlau yog nias nrawm nrawm rau hauv txoj kev lag luam casting los ntawm kev kub siab ntxiv.

Txheej txheem casting:

(1) Kev npaj ntawm cov pwm ua pwm (ua kua hlau ua ib lub thawv rau cov khoom siv dag) tuaj yeem muab faib ua cov xuab zeb pwm, hlau pwm, pwm pwm, av pwm thiab graphite pwm raws li cov khoom siv, thiab tuaj yeem faib ua cov pwm pov tseg, semi-ruaj khov pwm thiab pwm mus tas li raws li cov lej ntawm lub sijhawm siv. Qhov zoo ntawm kev npaj casting yog qhov tseem ceeb uas cuam tshuam rau qhov zoo ntawm kev ua haujlwm pov.

(2) Melting thiab nchuav cov khoom siv ntawm cov khoom siv hlau, cov khoom siv hlau ua hlau (casting alloys) feem ntau suav nrog ntau yam ntawm cov hlau cam khwb cia, cam khwb cia steel thiab cam khwb cia tsis siv cov hlau thiab alloys;

(3) Casting kev kho thiab tshuaj xyuas, suav nrog kev tshem tawm ntawm lub cev txawv teb chaws los ntawm cov tub ntxhais thiab pob zeb ntawm kev nrum, tshem tawm ntawm kev sib tw ntawm cov risers, kev nplij siab thiab cov nplauv, kev kho cua sov, kho lub ntsej muag, kev tiv thaiv xeb thiab kev txhim kho.

Cov tshuab nrum tshuab tuaj yeem muab faib ua peb qhov yooj yim, namely, casting hlau npaj, siv hlau ua kev npaj thiab casting kev kho mob. Foundry hlau yog hais txog cov khoom siv hlau siv hauv casting ntau lawm. Nws yog cov alloy tsim ntawm ib hom hlau thiab lwm cov hlau lossis cov hlau tsis muaj. Nws yog ib txwm hu ua casting alloy, feem ntau yog nrum hlau, nrum hlau thiab nrum tsis-ferrous alloy.

Kev sib tsoo hlau tsis yog tsuas yog cov txheej txheem melting yooj yim xwb, tab sis kuj tseem yog cov txheej txheem zom zaws, kom cov hlau muab hlau nchuav rau hauv cov pwm ua tau raws li qhov xav tau nyob rau hauv kev ntsuas kub, tshuaj lom neeg muaj pes tsawg leeg thiab huv. Yog li, hauv cov txheej txheem zom zaws, txhua yam kev tshuaj xyuas thiab ntsuas yuav tsum tau nqa tawm los txhawm rau txhawm rau tswj tau qhov zoo, thiab cov kua hlau ua kua tuaj yeem tso cia tsuas yog tom qab ua tiav cov hom phiaj tshwj xeeb. Qee zaum, txhawm rau ua kom tau raws li qhov yuav tsum tau ua ntau dua, cov kua hlau yuav tsum tau kho sab nraum qhov cub tawg tom qab nws tso tawm, xws li desulfurization, nqus plua plav, ua kom zoo sab nraum qhov cub tawg, inoculation lossis cuam tshuam tsis zoo. Cov khoom siv dav dav siv rau kev ua rau smelting yog cupola, hluav taws xob arc rauv, induction rauv, ua haujlwm rauv taws, rov ua kom sov, thiab lwm yam.