SP轧制过程及侧压模块受力的测试研究及有限元分析

针对SP轧制过程,通过有限元模拟和现场测试认为,框架内部间隙、轧制负荷是引起模块振动、衬板受力不均和侧压不同步的主要原因,分析了轧制板坯头部和中间部位时板坯的变形规律和侧压模块的受力,给出了轧制狗骨的产生机理。同时定量模拟了当模块的垂直度出现偏差时产生向下分力的大小,这是加剧衬板损坏的一个原因。通过与实测结果的比较,证明建立模型的正确性和计算结果的可靠性。     

60 kg/m钢轨万能轧制过程有限元模拟研究

以鞍钢大型厂60 kg/m钢轨轧制过程为研究对象,通过MSC.Marc软件,建立三维弹塑性热-机耦合有限元模型,模拟分析了万能轧机轧制生产过程中轧件的变形和受力情况。模拟结果与实际结果吻合较好,应用所建立的有限元模型对万能轧制机组轧制过程进行模拟,获得了轧制过程轧件变形、受力以及速度等参数的分布情况。     

三连拉和盘拉工序的数值模拟

建立了铜管流动芯头拉拔过程的弹塑性有限元模型.通过有限元模拟,综合分析了某一规格空调管中三连拉和盘拉过程中拉拔力的变化情况,以及由理论计算验证了模拟的准确性,并对模具进行了受力分析.     

铝锭推进式加热炉料垫受力分析与设计

利用I-DEAS软件对料垫受力进行了分析；通过建立实体几何模型、确定边界条件、建立有限元模型等分析研究，得到分析结果指导和验证料垫的设计。     

步进梁式加热炉炉底机械牵引框架有限元分析

根据有限元理论,在大型非线性有限元软件ABAQUS建立了牵引框架有限元模型,并根据牵引框架的特点施加边界条件、载荷,进行了有限元受力分析,得出其各个位置应力应变等情况,为炉底机械牵引框架的优化设计提供了参考依据。     

鱼雷式铁水罐车大桥架强度分析

通过对某大型鱼雷式铁水罐车大桥架建立了三维模型,对其主要结构、受力、强度、刚度进行了有限元分析。     

干熄焦衬板的热应力分析

干熄焦焦罐衬板承受着较大的热载荷,属于经常更换的易损件,延长衬板的寿命,可以降低生产成本,提高生产效率。采用有限元方法,定量地分析了衬板的热应力,并提出了降低热应力的措施,所作工作为提高衬板寿命提供了理论依据。     

φ15～70mm液压管材矫直机机架工作状态有限元研究

φ15 ～ 70mm液压管材矫直机为十二辊矫直机,采用有限元方法分析矫直过程中机架受力变形情况.研究建立了矫直机机架的三维模型,用最大理论矫直力作为工作载荷,对机架的形变进行有限元仿真分析研究.得出了机架的各单元、节点的变形值及应力值,找到了机架的应力和位移分布规律,并据此提出了机架的改进措施,为保证矫直精度打下基础.     

颚式破碎机衬板的制造方法

本项发明公开了一种颚式破碎机衬板。包括动颚衬板和定颚衬板，在所说的每块动颚衬板和定颚衬板的中、上部位把原来三角形的条形齿改变为一个个独立的圆锥形齿，利用这样的衬板工作时，由于减少了衬板与石块的挤压时的受力面积，而大大的增大了衬板对石块的压强的同时，相应的使偏心轴的抗力得到大大降低，最大优点是能够大大的减少了断轴，轴承损块，机体断裂等等恶性事故的发生，可为各企业直接的或间接的提高经济效益创造条件。     

初轧机滑块式万向接轴叉头应力应变分析及计算机图形显示

本文采用ＡＬＧＯＲＦＥＡＳ微机有限元分析软件包对滑块万向联轴器中的关键受力部件－叉头进行了有限元分析。采用了切线矢量加载和边界单元的约束方法建立分析模型。由于采用了有限元分析的前后处理技术，计算模型和分析结果实现了自动生成和计算机图形显示。     

熔炼次数对M17返回料合金成分、组织和性能的影响

实验结果表明,M17铸造高温合金(%:0.16C、8.79Cr、5.79A1、4.93Ti、3.29Mo、15.20Co、0.78V、0.015B、0.073Zr、0.002S、0.001P、0.001 1O、0.001 0N)经25 kg真空感应炉返回重熔后,Si含量随重熔次数的增加而略有增加,合金中主要元素和其它杂质元素S、P、H的含量变化不大,而氧、氮略有增加;合金中初生碳化物由新合金中的草书体逐渐向返回合金块状转变,初生碳化物的遗传性堵塞合金凝固时的补缩通道,使返回料合金的疏松倾向增大,高温塑性下降较大。     

China's Major Non-ferrous Metals Imports & Exports

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Zinc Production by Province in 2014

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80% of Chinese Firms Purchasing Overseas Mines Ended up in the Red

<正>Minmetals Resources acquired the world’s largest copper mine under construction for USD5.85 billion.One after another,listed companies Jien Nickle,China Molybdenum and Chihong Zinc and Germanium raised money to get involved in overseas mining projects…SOEs and private enterprises are engaged in a frenzy of overseas mine purchasing.A reporter with Economic     

Copper Processing Profit Dropped Sharply,Copper Consumption Will Face Impact in the Second Half of the Year

正Judging from China’s copper consumption field,the biggest consumption unit is electric power,which accounts for 47%of total consumption;it is followed by light industry sector,including household electrical appliance,machinery,durable goods and hardware etc,which accounts for 22%of total consumption;followed by transportation field,     

Central Geological Prospecting Fund Newly Added 16.47 Million Tonnes of Bauxite in 2013

正In 2013,the Central Geological Prospecting Fund(CGPF)Project newly discovered 15 ore fields,including 3 large above ore fields,and 5medium sized ore fields.The reporter learned from the recently published"Annual Report of Central Geological Prospecting Fund Project(2013)"that,from 2006 to 2013 the CGPF     

Manufacturers of Copper Tube for Central Air Conditioner Use Face Mounting Pressure in the Final Quarter of the Year

正This year,the investment growth rate of real estate industry continued to slow down,sold area of commercial housing also dropped significantly,which brought huge pressure to the domestic air conditioning manufactures.In the first half of the year,by relying on high growth in national financial expenditure,along with investment in public infrastructure     

Xinjiang Ranks No.1 in Production of Primary Aluminum in China

正Kang Yi,Honorary Chairman of China Nonferrous Metals Industry Association,said recently at the Forum on Development of the Non-ferrous Metals Industry in Central and Western China held in Zhengzhou that,as more and more electrolytic aluminum factories in Xinjiang came into operation,the electrolytic aluminum output of Xinjiang had reached2,275,000 tons in the first 7 months this year,     

Shenhuo Coal Industry and Electricity Power Completed800,000 t/a Aluminum Project in Xinjiang

正"Xinjiang project has been completed according to schedule,but total completion and total start of production are two different concepts,after completion it still needs a gradual process of reaching production target."On the morning of November 3,Shenhuo Coal Industry and Electricity Power told investors the above statement on the investor interaction platform.     

Guangdong Metal Transaction Center has Become the Second Largest Precious Metal Transaction Platform Nationwide

正The reporter learned from Guangdong Province Precious Metal Transaction Center that in 2013the Center maintained healthy development momentum,and had become the second largest precious metal transaction platform in China in terms of market size;currently Guangdong is quickening steps of financial innovation for the Center,aiming to build a transaction center with international core competitiveness.