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, China) Abstract: Ag-10Ni and Ag-5Fe alloy powders were prepared by ultrasonic arc spray atomization process. The microstructure of the rapidly solidified alloy powders was investigated...) matrix, and β(Ni) and β(Fe) particles with larger diameter contain dispersed α(Ag) particles. Key words: Ag-Ni; Ag-Fe; ultrasonic arc spray atomization; rapid solidification texture  ......
and characteristics of dust producing. In the 12 kinds of nozzles of hollow and solid conical nozzle spray field, the optimum nozzles which have the best atomization performance (including atomization angle... mechanized coal face; mist spraying between truss frames; atomization; ejector; dust removal 综采面是煤矿生产过程中产尘的主要场所,由于工作面产尘点具有分散,移动的特点,且产尘强度大,使作业空间充满高浓度粉尘,部分地点粉尘浓度甚至高达10g/m3[1-3].目前,国内外综采面采取的除尘措施主要有煤体预注水,喷......
, Northeastern University, Shenyang 110819, China Received 19 February 2019; accepted 15 November 2019 Abstract: Ti-6Al-4V alloy powder was processed by electrode induction melting gas atomization... alloys manufactured by LMD typically exceed those of their cast or wrought counterparts. Key words: Ti-6Al-4V powder; high pressure gas atomization; particle size; flowability; 3D printing capability 1......
are a result of the eutectoid decomposition during cooling. Particles with different particle sizes have experienced different cooling rates during atomization. Various cooling rates cause different martensitic transformation temperatures and routes of the TiNi powders; in particular, the transformation temperature decreases with decreasing particle size. Key words: atomization; plasma rotating electrode......
Trans. Nonferrous Met. Soc. China 24(2014) 208-216 Criterion of gas and solid dual-phase flow atomization crash in molten metal Gang CHEN, Xian YANG, Bin SU, Chuan-jun TU College of Materials Science and Engineering, Hunan University, Changsha 410082, China Received 4 July 2013; accepted 30 September 2013 Abstract: A self-invented atomization process, in which molten metal is atomized into powder......
160kA预焙槽加料技术的改进 丁罗昌1 (1.中国铝业青海分公司,青海,西宁,810108) 摘要:我公司160kA预焙电解槽气动插板式加料技术在生产中暴露出许多问题,无法将槽Al2O3浓度控制在1.5%~3.0%的高效率区,不适应工艺条件的要求.采用加料精准的筒式定容下料器,改进传统的加料技术,缩短加料间隔,增加加料次数后,成功地将预焙槽Al2O3的浓度控制在1.5%~3.0%. 关键词:预焙槽; Al2O3浓度; 加料技术; 改进; [全文内容正在添加中] ......
155kA预焙槽寿命探讨 周文田1 (1.白银铝厂,甘肃白银,730900) 摘要:重点探讨长寿命槽的生产工艺和延长槽寿命的生产实践,指出合理的槽内衬,较好的焙烧启动方法,平稳的生产过程,精细的操作和不断优化的工艺技术条件是延长槽寿命的关键所在. 关键词:槽寿命; 生产工艺; 预焙槽; [全文内容正在添加中] ......
生产优质预焙炭阳极的探讨 刘凤琴1,陈喜平1 (1.郑州轻金属研究院,) 摘要:通过控制原料质量,选择合适的焙烧工艺参数,优化生产工艺,可生产优质预焙炭阳极. 关键词:优质预焙炭阳极; 原料质量; 焙烧工艺参数; [全文内容正在添加中] ......
自焙槽电解铝厂技改方案探讨 熊焱1,龚涛1 (1.贵阳铝镁设计研究院,贵州,550004) 摘要:面对竞争日趋激烈的铝市场和国家越来越高的环保要求,针对我国众多的自焙槽电解铝厂来说,寻找一种技术上可行,经济上合理的技术改造方案,已成为我国铝工业界亟待解决的重要课题.面对不景气的铝市场和资金面偏紧的中,小型电解铝厂来说,选择将小自焙槽直接改造成小预焙槽的技术改造方案无疑更具有现实意义. 关键词:自焙槽; 预焙化; 环境保护; [全文内容正在添加中] ......
186kA预焙电解槽技术及生产实践 王有来1,刘卫东1 (1.贵州铝厂,贵阳,550058) 摘要:介绍了贵铝186kA技改槽采用的点式下料,四点大面进电,窄炉面结构,单围带摇篮架式槽结构,氟化铝自动添加等技术,适应于该槽型的"五低一高"工艺制度及应用于系列生产并取得较好运行效果的智能模糊控制技术.此外还介绍了技改槽系列通电,焙烧,启动到生产的实践经验及达到的技术经济指标. 关键词:预焙阳极电解槽; 技术性能; 实践经验; 生产指标; [全文内容正在添加中] ......