高强低吸水性膨胀珍珠岩保温制品的研制

用膨胀珍珠岩与无机胶结料混合并加入适量的助熔剂研制高强低吸水性膨胀珍珠岩保温制品 ,试验结果表明 ,当在膨胀珍珠岩中掺入 30 %以上的无机胶结料并在 74 0℃左右焙烧时 ,可制得高强度低吸水性的膨胀珍珠岩保温制品     

非金属矿加工技术的国内专利

(上接本刊1992年第5期) 五、珍珠岩加工技术专利 几.塑料珍珠岩组合材料及其生产方法 (CNlo56296A) 2.憎水膨胀珍珠岩绝热制品及其制造方法 (CN一ossZosA) 3·烧结膨胀珍珠岩绝热制品(CN103叹04人) 4.生产珍珠岩磨料的磨碎方法(c Nlo33581A) 5.珍珠岩瓷釉及制造方法(GK86105099) a.珍珠岩胶结剂(GKs7一03592) 7.珍珠岩加热膨胀工艺及装置‘cK861o6ol6) 8.膨润土膨胀珍珠岩制品(GKssxo6一05) 9.小颗粒膨胀珍珠岩轻型建筑材料制造工艺 (GKs7loo452) 10.高温膨胀珍珠岩隔热保温材料 (CNlo378s7A) 六、硅藻土加工技术专利 1.硅藻土提…     

湖北沼山珍珠岩及应用研究

本文对湖北沼山珍珠岩进行了矿物、化学成分和膨化工艺研究,同时进行以水泥和水玻璃为粘结剂的膨胀珍珠岩制品的研制。其中以425、525号水泥为粘结剂的中试产品达到国家GB10303—89优等品的标准。本文所论及的方法和制品为该地区珍珠岩矿床评价提供了实验依据,也为沼山珍珠岩制品厂提高产品质量找到了有效途径。     

新型膨胀珍珠岩保温制品的研制

将膨胀珍珠岩与玻璃粉及少量的外加剂混合，经高温煅烧后可制成一种新型膨胀珍珠岩保温制品，该保温制品的各项技术指标不但符合国家标准，而且强度高、吸水率低。     

矿物聚合法制备膨胀珍珠岩保温材料的实验研究

以膨胀珍珠岩为主要原料，以富钾铝硅酸盐岩的焙烧熟料作配料，掺以少量的煅烧高岭石或粉煤灰制备新型膨胀珍珠岩保温材料，制品性能符合膨胀珍珠岩绝热制品的国家标准（GB/T10303-2001）350号合格品的技术指标。讨论了主要影响因素对制品性能的影响，得出了优化的工艺条件。实验开辟了制备膨胀珍珠岩保温材料新的技术途径。     

新型球形闭孔膨胀珍珠岩泡沫制品研究

主要研究以水泥为粘合剂，以球形闭孔膨胀珍珠岩为轻骨料，加入多种外加剂研制成的新球形闭孔膨胀珍珠岩泡沫制品。     

球形闭孔膨胀珍珠岩制品成型剂研究

根据球形闭孔膨胀珍珠岩的特点，研制出了一种新型成型剂。实验结果表明：利用这种成型剂制得的珍珠岩制品，具有密度小、强度大的特点，且生产工艺简单可行。     

水玻璃膨胀珍珠岩制品的生产工艺及质量管理

本文从生产实践经验出发,论述了水玻璃膨胀珍珠岩保温制品的物理特性、生产原料及其生产工艺过程,提出了制品生产时的简便易行的质量管理措施。可为同类生产厂家参考。     

珍珠岩对多孔吸声材料性能的影响

本文通过材料复合的方法选择珍珠岩等制备多孔吸声材料。研究了珍珠岩不同粒径、掺量对制品的力学性能、吸声性能的影响。结果表明粒径在1.18～2.36mm,掺量在25%时制得的多孔吸声材料具有较好的综合性能。以"惠更斯原理"和"共振吸声原理"为基础,分析了珍珠岩吸声的作用机理。     

利用粉煤灰中的漂珠研制绝热制品

利用粉煤灰中的漂珠研制绝热制品的试验表明:当在漂珠中加入4%～9%的胶结剂,并经550～600℃温度焙烧后,其制品的导热系数、抗压强度等物理指标均符合膨胀珍珠岩绝热制品的标准要求,该制品与同类型绝热制品相比还具有强度高、绝热性好、吸水率低及耐高温等性能。     

Current situation and future trend of China rare earth luminescent material industry

<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     

China rare earth market review

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     

Annual Report analysis of Chinese rare earth-related listed companies in 2013

<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     

Market opportunities and challenges for rare earth polishing powder

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     

Baotou Research Institute of Rare Earths developed a new RE alloy preparation technology

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     

矿用防爆轴流对旋主要通风机叶片ANSYS模态分析及应用

高效节能矿用防爆对旋主要通风机的叶片是主要通风机运行的关键部件,叶片在运行时不断受到气流的作用力,从而使叶片产生振动,当叶片振动的频率与叶片的固有频率接近时,容易产生共振从而导致叶片的断裂。一旦叶片断裂时,对主要通风机的安全运行产生致命的影响,从而导致矿山、化工等企业发生重大事故,将会产生不可估量的损失。基于有限元分析软件ANSYS,对高效节能矿用防爆轴流对旋主要通风机叶片进行模态分析及产生对应的六阶模态频率,对主要通风机叶片的运行频率、固有频率及产生的共振问题进行了原理分析,并且解决了叶片频率共振的问题,从而为主要通风机叶片结构设计提供理论依据,并对主要通风机叶片的安全运行提供保障。     

2013 NdFeB export analysis

<正>China totally exported nearly 24,000 tonsof NdFeB products during 201 3,including 18,825 tons of permanent magnet,valued USD 1.34 billion at an average price of 71.4 USD/kg;3,277 tons of NdFeB magnetic powder,valued USD 1 01 million at an average price of 30.9 USD/kg;1,334 tons of strip casting ribbon,with total export value of USD 74million at an average price of 55.3 USD/kg;and 586     

Market and recycling of NiMH battery

<正>Market status and future trend of NiMH battery1.Global market of small NiMH battery Global market size of small NiMH batteries declined year on year since 2011.The trend will continue to 2018,at the rate of 5%to 10%annually.Demand for small NiMH batteries will be stable gradually.Many electrical apparatuses are powered by the built-in lithium battery today,which is the main reason for the shrunk market of small NiMH batteries.But,for some products,small NiMH     

China rare earth market review

正September 1-10,2014 Affected by the National Day holiday,rare earth transaction was stagnant and the market showed a weak steady state.As there was no good news for downstream market,some products with flat demand would likely rally slightly for some time to     

唐口煤矿深部复杂开采工作面瓦斯分源涌出规律研究

研究工作面瓦斯涌出规律对工作面瓦斯治理有重要意义。为了得到唐口煤矿深部3号煤层复杂开采条件下工作面回采时期瓦斯涌出时空演化规律,选取6304工作面作为对象,采用实测方法研究6304工作面瓦斯涌出规律。结果表明:6304工作面瓦斯涌出量为6.534 m³/min,其中煤壁占34.27%,落煤占29.62%,采空区占36.11%;沿工作面倾向由低到高,瓦斯浓度整体为上升趋势,其中1—76号架工作面瓦斯浓度小于0.20%,76—102号架瓦斯浓度上升明显,最大为0.387%;上隅角的后部采空区是工作面的瓦斯主要涌出源,上隅角1号测点瓦斯浓度0.78%,上隅角周边3号、5号、7号、8号、9号测点瓦斯浓度平均为0.643%;周期来压时,上隅角瓦斯相对平时较高。研究为针对性的瓦斯分源监控与灾害防治提供基础。