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煤矿机械生产条件恶劣,煤矿机械若润滑不到位,致使磨损失效,情况严重会影响设备的使用寿命,甚至会引起安全事故。镶嵌式固体自润滑轴承,结合金属基体与固体润滑剂的各项性能,在低速、重载、高温的环境中表现出良好的自润滑特性,为煤矿机械设计、制造中的润滑不佳部位提供有效的解决方案,同时节能环保,减小污染,与绿色煤机设计制造技术理念一脉相承。 相似文献
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该文简要介绍了乳化液的品质、配制用水、使用方法对煤矿液压系统工作性能的影响 ,并提出在应用中应进一步加强油品管理 ,改善设备运行状态 ,延长设备使用寿命。 相似文献
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计算机辅助设计是利用计算机及其图形设备帮助设计人员进行设计工作,其应用范围非常广阔。随着我国煤炭工业的飞速发展,煤矿生产机械化程度不断提升,在煤矿机械的零件之中,通过应用计算机辅助设计,提高设计效率以及科学性,成为了当前一个大的发展趋势。分析了计算机辅助设计技术在煤矿机械设计中应用的基本意义,以煤矿机械中常用零件凸轮为例,探讨计算机辅助设计在煤矿机械零件中的开发以及应用。 相似文献
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油品中机械杂质的快速测定方法 总被引:1,自引:0,他引:1
0 前言存在于油品中所有不溶于规定溶剂的杂质叫做机械杂质.油品中的机械杂质是在贮运、保管和使用过程中混入的,如泥沙、灰尘、铁锈和金属粉末等.燃料中含有这些机械杂质,会堵塞油路和滤清器,甚至会严重磨损油泵和喷油嘴.润滑油中的这些机械杂质则会磨损机件,增大残炭和灰分数量.变压器油中的这些机械杂质,会严重降低它的绝缘性能.该厂大量使用各类润滑油用于采煤机及机械加工设备.所以这些机械杂质在油品使用前必须测定出其含量,并加以清除.防止使用劣质油造成设备损伤.清除的办法可使用沉淀或过滤等去除这些机械杂质. 相似文献
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煤矿机械电气设备项目是一种科技含量比较高,集多种专业技术和多种学科知识于一体的复杂系统工程项目,如果该项目中的任何一个环节的设备出现相关故障问题,都将影响到整个设备的安全稳定运行。论述了煤矿机械电气设备自动化调试的意义与控制模式,通过差动保护实验方法具体分析了煤矿机械电气设备自动化调试技术的应用,提出了相关配套措施。 相似文献
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煤矿机械设计及交流涉及到诸多零部件及设备模型,借助建模技术构建煤矿机械模型库可以为技术交流提供极大便利。文章首先对煤矿机械模型库所涉及的内容进行介绍,在此基础上对煤矿机械模型库系统结构以及所应用到的关键技术进行了全面阐述。 相似文献
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Gao Wei 《中国稀土信息(英文版)》2014,(11)
正1.Status of rare earth polishing powder Rare earth polishing powder with high content of cerium oxide began to replace iron oxide for glass polishing and became one of the key materials in glass polishing process since 1940.Compared with traditional iron oxide,rare earth polishing powder has many advantages,such as fast polishing rate,high polishing quality and long service life.It can achieve good surface quality and improve operation conditions.For example,in lens polishing,the polishing work that cerium 相似文献
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YANG Li 《中国稀土信息(英文版)》2014,(6)
<正>Chinese rare earth-related listed companies have published their 2013 annual reports.It can be understood from their reports that production and operation activities of Chinese rare earth-related companies were still heavily affected by macro economy and industrial policies.They basically followed the steps of national economy.In 2013,world economy recovered slowly but the economy 相似文献
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《中国稀土信息(英文版)》2014,(8)
正Pyrometallurgy Laboratory of Baotou Research Institute of Rare Earths had independently developed a new preparation technology of rare earth alloy for NdFeB.The alloy can remarkably enhance the coercivity of NdFeB magnet but also evidently reduce the production cost of the magnet.The new master alloy was prepared in the kA pilot-scale electrolytic cell by the independent technology.The rare earth master alloy can be used as the raw material for NdFeB.Compared 相似文献
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<正>Rare earth luminescent material is one of the most important application sectors of rare earths.China enjoys the exceptional advantage to develop rare earth luminescent material for its abundant rare earth resources.After several decades'endeavor,China's rare earth luminescent material industry,headed by rare earth phosphor for lamp and LED and high efficient rare earth energy-saving light source,has been gradually developed into a scale industry.China has become a major production base of rare earth phosphor for lamps and rare earth 相似文献
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《中国稀土信息(英文版)》2014,(6)
正June 1~10,2014Rare earth market remained weak.Quoted price of rare earth products was similar to that in May.There was no sign of recovery in downstream market.The market of NdFeB magnetic materials and phosphor was depressed.Catalyst,polishing powder and ceramic industries remained inactive.Demand from downstream industry was soft.Consumers purchased on their needs.Suppliers had strong intention to sell.Prices of rare earth products 相似文献
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《中国稀土信息(英文版)》2014,(10)
<正>Developing ecological lighting source The world is facing the big problem of energy shortage today and the contradiction between economy development and environmental protection is worsened.Therefore,people are more likely to choose an ecological light source that is more energy efficient and environmental friendly.The choice provides great opportunity for the development of rare earth optical material industry in China.The concept of green lighting positions rare earth luminescent material as a leading player in illumination market.The light source of both rare earth luminescent lamp and LED lamp is ecological and energy saving.This is why 相似文献
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《中国稀土信息(英文版)》2014,(8)
正Galaxy Magnet announced its financial results for the first half of 2014 on August 14.For the first six months ended on 30 June 2014,Galaxy Magnet achieved operation income of RMB 182.3 million,up8.40% over the same period of 2013,and the net profit attributable to the shareholders of the listed company of 34.02 million yuan,increasing 35.49% over the same period of last year.Stable performance increase was led by development of new customers and application market of magnets. 相似文献
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<正>China has rich rare earth resources.Output of rare earth and steel in China ranks the top first in the world.However,there is still certain distance between the steel produced in China and developed countries from the point of varieties and quality.China still has to import some types of steel.Improving the quality should be emphasiZed in future development of steel industry in China.Rare earth can be used to upgrade traditional steel 相似文献
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《中国稀土信息(英文版)》2014,(12)
正November 21~30,2014Due to weak demand from downstream industries,transactions of rare earth in Chinese domestic market were inactive.It was difficult to sell any rare earth products except for dysprosium oxide and terbium oxide.Suppliers lost confidence in recent market.Demand for rare earth products was soft.Consumers continued to take a wait-and-see attitude.Rare earth export market remained slow. 相似文献
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分析了近年来国内外稀散金属产业的生产、应用、资源与市场状况.铟锡氧化物靶材、砷化镓晶片、锗红外材料、铼高温合金和硒在电解锰及玻璃的应用等已成为稀散金属的主要应用领域.稀散金属的产量快速增长达到历史高位而导致了市场的失衡.以GaInP_2/GaAs/Ge,CIGS和CdTe为代表的非硅系太阳能电池是稀散金属的新兴应用领域,将给稀散金属带来日益增长的需求. 相似文献