浅析不等数量钢丝绳芯输送带接头硫化

一般情况下,硫化作业是对相等数量钢丝绳芯输送带进行的,而对不等数量钢丝绳芯输送带进行硫化作业是在生产过程中出现的新问题。要确保不等数量钢丝绳芯输送带接头的硫化质量,硫化工艺是关键。文章针对不等数量钢丝绳芯输送带接头的硫化工艺进行了探讨。     

提高钢丝绳芯输送带硫化接头使用寿命的工艺研究

钢丝绳芯输送带作为带式输送机的主要部件,最大的隐患就是输送带硫化接头黏合强度低,易出现接头处钢丝绳蠕动、拉脱造成断带、损伤设备及人员的安全事故。本文从钢丝绳芯输送带硫化接头的制作及运转滚筒的选取等方面来提高钢丝绳芯输送带硫化接头的使用寿命。     

钢丝绳芯输送带接头强度与预成型芯胶技术研究

钢丝绳芯输送带是带式输送机的牵引和运载构件,接头破坏是引起钢丝绳芯输送带故障的主要原因。为了提高输送带的接头强度和接头硫化效率,基于现有接头硫化工艺,提出了一种预成型芯胶敷设技术,以ST1 600型钢丝绳芯输送带接头为研究对象,对该技术的应用进行了理论分析和试验研究。首先,建立输送带接头力学模型并进行受力分析,通过ANSYS Workbench软件研究钢丝绳水平、垂直间距不均匀性对接头强度的影响,然后,提出预成型芯胶敷设方法,通过芯胶流固耦合分析对比了填充式芯胶与三角形、梯形和半圆形芯胶凹槽对限制钢丝绳偏移的作用效果。最后,通过接头预成型芯胶硫化试验研究了该技术对输送带胶体粘合强度、接头硫化效率以及接头强度的影响。研究表明：输送带接头处钢丝绳的受力与其纵向位移有关,由于传统接头硫化作业中无法实现钢丝绳的均匀分布从而引起钢丝绳受力不均,影响接头强度,而钢丝绳水平间距相较垂直间距的变化对钢丝绳等效应力的影响尤为显著,更易引起接头钢丝绳的破坏。预成型芯胶敷设技术能够有效减少钢丝绳的偏移量,其中半圆形芯胶凹槽效果最优,水平方向减少70%,垂直方向减少86.9%。在相同硫化条件下,与填充式芯胶相...     

钢丝绳芯输送带接头的一种连接方式

<正> 钢丝绳芯输送带一般都制成100m 长,用户使用时将数段胶带连接起来。连接时接头要光滑平整,钢丝绳芯与橡胶要有较强的粘着力,输送带能保持原有挠性,耐疲劳强度和破断强度要高。目前输送带的连接方式通常采用对接-搭接法或搭接错位法,连接后进行硫化。对接-搭接法:接头处钢丝绳密度增大1/2     

输送带接头硫化工艺分析及维护方法

分析了钢绳芯输送带硫化原理、影响接头工艺质量的因素及提高接头可靠性的途径,介绍了现场接头硫化制作工艺、注意事项和日常维护内容     

钢丝绳芯输送带及硫化接头的管理

胶带与胶带接头的管理好坏是保证输送机正常运转的关键。本文详细地介绍了钢丝绳芯输送带的使用和维护方法 ,以及输送带硫化接头的管理办法     

钢丝绳芯输送带及硫化接头的维护与管理

胶带与胶带接头的管理好坏是保证输送机正常运转的关键。文章详细介绍了钢丝绳芯输送带的使用和维护方法,以及输送带硫化接头的管理办法。     

钢丝绳芯输送带接头硫化工艺分析及维护

通过对钢丝绳芯胶带结构、硫化接头原理、制作工艺的分析,探讨了硫化作业及现场运行维护应注意的问题,为胶带接头硫化提供了借鉴经验。     

钢丝绳芯输送带硫化接头方法浅析

分析了钢丝绳芯输送带硫化接头的工艺及如何保证硫化质量 ,对实际操作过程中有关事项作了说明     

钢丝绳芯输送带接头的硫化及操作法

钢丝绳芯输送带接头的硫化质量好坏与否,直接影响到胶带的正常运行和使用寿命,是保证企业原煤生产的关键。文章主要介绍了钢丝绳芯输送带的接头硫化工艺及具体操作方法,并强凋了操作的技术和安全要点,可做为本工作的岗位标准化作业的作业标准。     

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     

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     

2014 second batch of rare earth quota released

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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