Comparison of Tribological Properties of Manganese Phosphate Conversion Coating and Ferrous Sulfide Coating 磷酸锰转化涂层和硫化亚铁涂层的摩擦学性能对比
Machinability of P/ M sintered steels with manganese sulfide and calcium fluoride additives is investigated and analyzed by experiments of sintering and cutting on milling machine. 通过烧结和在铣床上切削加工的实验,研究了添加硫化锰和氟化钙的烧结钢的加工性。
The mutual solution behavior and shape character of calcium manganese sulfide, both synthesized and formed in steel, have been investigated by using electrolysis extraction, X-ray diffraction, EPMA and SEM-EDAX. 应用电解抽取、X线衍射、电子探针、扫描电镜等分析技术,研究了合成物和钢中生成的钙锰硫化物的互溶特征与形态,明确了以下方面。
Theoretical Analysis on Controlled Element of Ostwald Ripening Process of Manganese Sulfide in Steels 硫化锰在钢中的Ostwald熟化过程的控制性元素的理论分析
Chromium and manganese are mainly in sulfide and iron-manganese oxides. Cr和Mn主要与硫化物和铁锰氧化物结合;
To improve the homogeneity of manganese sulfide and calcium fluoride, the machinability could be enhanced. 改善硫化锰和氟化钙的分布,将会改善切削加工性。
According to Ostwald ripening theory of second phases in dilute solution, the effect of relative content of sulfur and manganese in steel on controlled element of the Ostwald ripening process of manganese sulfide has been theoretically analyzed and calculated. 根据稀溶体中第二相的Ostwald熟化的理论,分析计算了钢中硫、锰元素的相对含量对硫化锰在钢中的Ostwald熟化过程控制性元素的影响。
The manganese sulfide inclusions to a different degree make the resistance curves of crack propagation move up or down, but there is not obvious influence on the slops of resistance curves of crack growth. 不同程度的硫化锰夹杂使得裂纹扩展阻力曲线上下移动,而对阻力曲线的斜率无明显影响;
Based on fundamental of chemical precipitation, the superfine manganese sulfide was prepared by designed different technologies and conditions. 本文基于化学反应沉淀法的基本原理,通过设计不同的工艺路线和工艺条件制备硫化锰微细粉末。
The results show that superfine manganese sulfide powder with, uniform size distribution, high purity and good dispersity prepared by ultrasonic chemical method meets the requirements for powder metallurgy additive. 检测结果证明,超声化学法制备的硫化锰粉末颗粒微细、粒度分布均匀、分散性好、化学纯度高,满足粉末冶金添加剂的使用要求。
This paper studies the effects of different degrees of manganese sulfide inclusions, grain sizes and other metallurgical factors in three types of medium carbon manganese steels on the characteristics of crack propagation resistance. 本文研究了三种中碳锰钢中不同程度的硫化锰夹杂和晶粒尺寸等冶金因素对材料裂纹扩展阻力特性的影响。
The results show that the anisotropy of characterstics of crack propagation resistance of the materials are caused not by banded structure but by manganese sulfide inclusions strips distributed along the rolling direction. 结果表明:造成材料裂纹扩展阻力各向异性的主导因素是沿轧向分布的条片状硫化锰夹杂,而不是通常所认为的带状组织;
Self-lubrication alloys containing sulphide with different contents of manganese were prepared by a induction melting and casting process. The formation of sulfide in these alloys and their fracture were researched both with a scanning electron microscope and microstructure analysis. 文章利用中频感应炉炼制2种锰含量不同的硫化物自润滑合金,通过SEM观察断口并结合组织分析,研究合金中的硫化物形成以及合金的断裂行为。
The results show that the manganese sulfide inclusion can be controlled to precipitate in austenite with size less than 100 nm while it is difficult at present condition for the alumina inclusions to completely precipitate in solid iron. 结果表明,硫化锰是有可能控制使之在奥氏体中以100nm以下尺寸沉淀析出;
Experimental study on Synthesis of superfine manganese sulfide 微细硫化锰合成技术实验研究
The Utilization of Wasted Acid from Titanium White Production with Manganese Dioxide Ore and Iron Sulfide to Produce Electrolytic Manganese Metal 利用钛白粉废酸、二氧化锰矿和硫铁矿制取电解金属锰的研究与开发