用高锰孕育灰铸铁生产纺机类配件的研究

来源 :热加工工艺 | 被引量 : 0次 | 上传用户:yan3134
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
在生产条件下,经随流孕育加锰处理能有效地改变石墨形态和尺寸,强化基体,获得良好的铸态组织。抗拉强度可提高50~150MPa。
其他文献
近年来就业难的趋势有明显转移,原本困扰妇联的4050就业难问题逐步得到解决,2030正在成为新的就业困难户。上海市妇联对青年女性失业率增高表示担忧,但更难的不是社会上缺失就业
本文用比色法,X射线粉末衍射法及原子吸收光谱法对以“NaNo_3+C(石墨)”为主要组元的铸造铝合金精炼剂在铝硅合金液中反应的气相产物、非气相产物及合金中的微量元素进行定量
With the advent of left-handed magnetic materials, it is desirable to develop high-performance wave devices based on their novel properties of wave propagation.
To reproduce the premature rupture process of metal sheet subjected to laser irradiation with subsonic airflow,which is an interesting phenomenon observed in th
Laboratory experiments were conducted to study the spallation behaviour of thermal barrier coatings(TBCs)on aero-engine turbine blades manufactured by the elect
The current structure-preserving theory,including the symplectic method and the multisymplectic method,pays most attention on the conservative properties of the
This work focuses on the study of the effect of hydrophobicity on the water flow in carbon nanotubes(CNTs)using a molecular dynamics(MD)approach for a wide rang
中组部、人口计生委、监察部等11部门联合发出通知,就加强人口和计划生育工作提出若干政策措施。新政策对违法生育的处罚做出明确规定,凡违法生育的,一律依法征收社会抚养费。要
Interface dislocations may dramatically change the electric properties,such as polarization,of the piezoelectric crystals.In this paper,we study the linear inte