Khoom Taw Qhia

Kev ntsuas thiab xam txoj kev ntawm graphite nodulation tus nqi ntawm nodular casting

Raws li tus qauv metallurgical ntawm ductile hlau, qhov kev ntsuas ntawm spheroidization tus nqi yog: Cov qauv yog polished tsis muaj erosion, kev soj ntsuam thiab kev ntsuas Kev ntsuas teb yog graphite nyob rau hauv txoj kab uas hla ntawm 70 hli, graphite txiav nrog lub voj voog sab nrauv tsis suav nrog. Kev ntsuas ntsuas, kev soj ntsuam thiab yees duab magnification yog 100 zaug, qhov kev soj ntsuam tsis yog ntsuas thaum lub cheeb ntawm lub graphite pob yog tsawg dua 2 hli, tus naj npawb ntawm graphite npas nyob rau hauv qhov kev pom tsis tsawg tshaj li 20, lub graphite pob. txoj kab uas hla yog tsawg dua 12mm los yog ntau dua 12mm, Qhov magnification tuaj yeem hloov tau raws li qhov tsim nyog, thiab cov graphite nyob rau hauv qhov pom kev pom feem ntau yog piv nrog tus qauv tswj thiab qib txiav txim siab.

Kev txheeb xyuas cov graphite hauv castings los ntawm optical microscopy

Thaum lub metallography ntawm nodular thiab grey hlau castings raug soj ntsuam los ntawm optical microscope, lub planar morphology ntawm graphite muaj ib tug uas tsis yog-hlau tsos, qhia lub anisotropy thiab reflection polychromism ntawm graphite. Nyob rau hauv lub teeb unpolarized, lub graphite tshwm lub teeb greyish xim av, thiab nyob rau hauv lub dav hlau polarized lub teeb, lub graphite tshwm lub teeb grey mus rau dub. Hauv cam khwb cia hlau, graphite theem tuaj yeem lees paub tsuas yog tom qab polishing thiab ua pov thawj nws cov optical anisotropy thiab muaj kev cuam tshuam polychromatism.

Thaum soj ntsuam graphite nyob rau hauv nodular casting thiab grey hlau casting nyob rau hauv lub ci teb unpolarized lub teeb, lub graphite yog tsis-directional thiab tsis tsim polarization nyhuv, lub graphite theem yog uniform thiab lub teeb grey, thaum soj ntsuam nyob rau hauv lub ci teb polarized lub teeb, lub graphite muaj pom tseeb. Polarization nyhuv, nyob rau hauv ib co kev qhia cov graphite muaj zog reflective muaj peev xwm thiab yog obviously ci, thaum nyob rau hauv lwm cov lus qhia cov xim yog tsaus, thiab tsaus nti teb technology kuj siv tau los xyuas cov graphite. Thaum pom nyob rau hauv cov xwm txheej ntawm qhov tsaus ntuj polarized lub teeb, lub graphite zoo li tus ntoo khaub lig zoo sib tshuam lub teeb thiab tsaus.

Txhim kho qhov zoo ntawm ductile casting

Yog hais tias keeb kwm ntawm txoj kev loj hlob ntawm cam khwb cia hlau yog tsav los ntawm lub zog siab, ces nws ntxiv kev loj hlob tseem yog li ntawd, uas muaj xws li cov hauv qab no:

Kev txhim kho ntxiv ntawm lub zog siab tshaj plaws ductile castings nyob rau hauv lub tshav pob cam khwb cia hlau; 2. Kev txhim kho ntxiv ntawm lub zog ntawm ntau yam cam khwb cia hlau (grey cam khwb cia hlau, malleable cam khwb cia hlau, Confucian cam khwb cia hlau, thiab lwm yam); 3. Nyob rau hauv lub tshav pob cam khwb cia hlau, qhov feem ntawm lub siab zog cam khwb cia hlau, tshwj xeeb tshaj yog muaj zog thiab siab toughness ductile cam khwb cia hlau, yog loj. Qhov kev faib ua feem ntawm cov ductile casting thiab steel casting nyob rau hauv Suav teb, nrog rau qhov feem ntawm cov hlau cam khwb cia hlau cam khwb cia hlau yog tsis tsim nyog, qhov dav siv ntawm ductile cam khwb cia hlau, thiaj li hais tias nws suav rau 15% -25% ntawm tag nrho. qhov hnyav ntawm cam khwb cia hlau, uas yog ib qho ntawm cov kev lag luam zoo tshaj plaws los txo qhov hnyav ntawm castings thiab txhim kho cov txiaj ntsig kev lag luam thiab kev lag luam. Hloov cov hlau nplaum rau cov hlau cam tuaj yeem txo nws qhov hnyav los ntawm 8% -12%, hloov grey cam khwb cia hlau nrog cov hlau ductile, lub zog tensile tuaj yeem nce los ntawm 1-2 zaug, thiab qhov hnyav ntawm cov casting tuaj yeem ua tau. txo los ntawm 15%-30%.

Zhongwei Precision muaj cov kev pabcuam hauv qab no

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Peb yog cov chaw tsim khoom ntawm "SG500 Slash / 7 Ductile Iron Parts", yog tias koj xav tau cov ntaub ntawv ntxiv thov hu rau peb!