A.灰口鑄鐵 B.鑄造鋁合金 C.球墨鑄鐵 D.鑄鋼
A.45或40Cr B.QT700-02 C.ZG270-500 D.其余三項(xiàng)
A.對(duì)于碳鋼曲軸鍛件,為使其綜合機(jī)械性能好,應(yīng)進(jìn)行正火 B.對(duì)于合金鋼曲軸鍛件,應(yīng)進(jìn)行調(diào)質(zhì)處理 C.對(duì)于球墨鑄鐵曲軸,應(yīng)進(jìn)行正火 D.對(duì)于鑄鋼曲柄,應(yīng)進(jìn)行調(diào)質(zhì)處理