【摘要】：對球墨鑄鐵和灰鑄鐵鑄造曲軸試樣調(diào)質(zhì)預(yù)處理,制備成圓片狀試樣,預(yù)磨拋光處理后,進(jìn)行離子碳氮共滲工藝處理,加熱至570℃保溫6 h爐冷至室溫,制備成碳氮共滲試樣,對共滲前后試樣做金相和磨損性能試驗(yàn)結(jié)果表明:試樣共滲后表層有明亮層,滲層厚度為120~210μm,硬度明顯增加;試樣共滲后表面硬度的顯著提高,對耐磨損性能有較大的改善。對比試驗(yàn)結(jié)果證明:離子碳氮共滲后鑄鐵耐磨性有所提高,球墨鑄鐵比灰鑄鐵耐磨損性能有較大改善,提高顯著。
[Abstract]:The nodular cast iron and gray cast iron casting crankshaft samples were quenched and pretreated to prepare round sheet samples. After pre-grinding and polishing, the samples were treated by ion carburizing, heated to 570 鈩，

本文編號：2507654