• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Iron Steel Supplement 2005 vol.40: The Joint International Conference of HSLA Steels 2005 and ISUGS 2005 >High Strength Steel for the Truck Industry and Mining Equipment Operating in Arctic Environment
【24h】

High Strength Steel for the Truck Industry and Mining Equipment Operating in Arctic Environment

机译：北极环境中用于卡车行业和采矿设备的高强度钢

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In Russia, more than 10% of the products of the machine building industry are applied in Arctic environment, where temperatures below -40°C are common. This specifically applies to off-road vehicles, trucks and equipment needed for the mining industry. Traditional high strength steels or imported steels often do not have sufficient strength (needed for weight reduction) or toughness, or weldability. Therefore new steel grades have been developed based on the following principles: ①relatively low carbon content to improve low temperature toughness and weldability; ②high cleanliness achieved by reducing harmful non-metallic inclusions during an optimized steelmaking process; ③microalloying with niobium for grain refinement; ④using heat treatment operations quenching plus tempering; ⑤use naturally-alloyed pig-iron (made from chromium and nickel containing iron ores) in order to save expensive alloying elements.Two different high strength steel grades have been developed and are applied in the truck industry, guaranteeing the following properties: yield strength ≥ 690 or ≥ 1000 MPa; tensile strength ≥ 790 or ≥ 1100 MPa; elongation (δ5) ≥ 16 or ≥ 11 %; CVN toughness ≥ 50 (at -70°C) or ≥ 40 J/cm~2 (at -40°C).
机译：在俄罗斯，超过40％的机械制造业产品用于北极环境，在北极环境中温度通常低于-40°C。这特别适用于采矿业所需的越野车，卡车和设备。传统的高强度钢或进口钢通常没有足够的强度（减轻重量所需），韧性或可焊性。因此，基于以下原理开发了新的钢种：①相对较低的碳含量，以提高低温韧性和可焊接性; ②通过优化炼钢过程中减少有害的非金属夹杂物实现高清洁度; ③与铌微合金化以细化晶粒; ④采用热处理操作进行淬火加回火; ⑤使用天然合金生铁（由含铬和镍的铁矿石制成）以节省昂贵的合金元素。已开发出两种不同的高强度钢种，并在卡车行业中使用，保证了以下性能：屈服强度≥ 690或≥1000 MPa;抗拉强度≥790或≥1100 MPa;伸长率（δ5）≥16或≥11％; CVN韧性≥50（在-70°C时）或≥40 J / cm〜2（在-40°C时）。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号