Paub qhov txawv ntawm kev txawj ntse
Nyob rau hauv cov nqe lus ntawm kev txawj ntse, cov kev qhia ntawm cov hlau ductile dav hlau nyob rau hauv lub teb chaws tus qauv yog QT400-15, QT400-18, thiab lwm yam, qhov twg QT yog lub abbreviation ntawm thawj daim ntawv capital ntawm ductile hlau, 400 hais txog lub zog tensile ntawm ib feem, 15, 18 hais txog elongation. Muaj ntau txoj hauv kev sawv cev ntawm cov hlau hlau hauv txawv teb chaws, EN-GJS-400-15/18 hauv European tus qauv, GGG40 / GGG40.3 / GGG50 hauv German tus qauv thiab lwm yam.
Txoj kev qhia dav dav ntawm grey cam khwb cia hlau nyob rau hauv lub teb chaws tus qauv yog HT150, HT200, HT250, thiab lwm yam., qhov twg HT yog cov ntawv luv ntawm thawj daim ntawv loj ntawm grey cam khwb cia hlau, 150 hais txog lub zog tensile ntawm ib feem, thiab cov lus qhia. txoj kev grey hlau qhov hauv German tus qauv yog GGG15 / GGG20 / GGG25 / GGG30 thiab lwm yam.
Lub graphite nyob rau hauv grey cam khwb cia hlau qauv muaj nyob rau hauv flakes, thiab cov graphite nyob rau hauv nodular cam khwb cia hlau qauv muaj nyob rau hauv ib tug kheej kheej; grey cam khwb cia hlau tsis muaj zog thiab yas (flaky graphite splits lub matrix, ua rau muaj kev ntxhov siab concentration), siab brittleness, thiab zoo vibration damping kev ua tau zoo. Nws yog tsuas yog siv los tsim qee qhov chaw uas tsis xav tau lub zog siab; Lub splitting nyhuv ntawm spherical graphite ntawm lub matrix yog minimized, thiab cov kev nyuaj siab concentration yog minimized, uas yuav muab tag nrho cov kev ua si rau lub matrix kev ua tau zoo, thiab muaj tej yam plasticity thiab zoo toughness.
