Txhim kho hnyav thiab kev ntseeg ntawm Machinery Castings

Txhim kho hnav txoj haujlwm thiab kev cia siab ntawm Machinery Castings

Txhawm rau kom siv lub tshuab cuab yeej casting khoom kom siab zog, siab tawv txhav, thiab ntxiv txhim kho kev coj ntawm lub cuab yeej siv tshuab thiab kev siv kev cia siab, kev loj hlob thiab kev siv ntawm ib tug xov tooj ntawm cov ntaub ntawv tshiab nyob rau hauv xyoo tsis ntev los no:

(1), HT300 muaj zog ua rau cov tub ntxhais muaj plua plav hlau. Machinery Castings Qhov sib ntxiv ntawm cov pa ua kua ntawm 1450 ℃ rau 1470 ~ 1520 ℃, qhov kev faib seem ntawm cov khoom seem hauv kev sau nqi (ntxiv 40% ~ 50%), kev siv C-si, Ca-Ba thiab CaMnSi-bi inoculants, thiab lwm yam Kev ntsuas kev ntsuas, hauv CE ≥ 3.5% raws li cov kev nkag mus rau HT350 qib.

(2), siab Si / C grey cam khwb cia hlau. Raws li qhov sib npaug ntawm CF = 3.4% ~ 3.8%, qhov sib ntxiv ntawm qhov seem yog nce, qhov sib piv Si / C yog nce los ntawm 0.4 ~ 0.5 mus rau 0.7 ~ 0.8, qhov kub ntawm hlau yog nce mus rau siab tshaj 1450 ℃, Tensile zog yuav tau nce los ntawm 20 ~ 30mpa. E0 tus nqi tseem nce siab, qhov casting muaj qhov me me rau deformation. Txawm li cas los xij, rau cov thickness castings xws li tshuab cuab yeej, nce Si / C nqi nce cov ntsiab lus ferrite ntawm seem ntu, tab sis txo lub zog. Lub sij hawm no yuav tsum ntxiv Cr, Ca, Sb thiab Sn thiab lwm yam kev sib txeeb, txhim kho lub tshuab ntawm qhov seem ntawm pearlite cov ntsiab lus, Machinery Castings txo qhov nyuaj ntawm qhov kev sib tshooj, ntxiv kom muaj tseeb ntawm cov cuab yeej siv twj thiab kev ruaj ntseg.

Kev ntsuam xyuas hauv tsev siv vibration aging, txo thiab txo qhov kev ntxhov siab nyob rau hauv lub Nras Machinery Castings. Nws cov nyhuv rau seem kev nyuab siab. Vim tias muaj peev txheej ntawm qhov hloov ntawm cov khoom siv tom qab kev sib tw, kev tiv thaiv kev povhaum ntawm kev pov thawj nce, qhov peev xwm tiv thaiv qub yog nce ntxiv ntawm 30%, thiab kev tiv thaiv kev tiv thaiv yog nce ntawm 100% ~ 300%.