查询词典 piercing mill

In order to well control the apparent density of the atomized powder,the effects of the rod-mill's rod moving frequency,rod length,and the drawing-off pore width of sieve plate bottom of the rod mill system on apparent density of the atomized iron powders were studied.

为了更加合理有效地控制水雾化铁粉的松装密度，研究了水雾化铁粉棒磨系统棒头的转速、棒头的长度和筛底空隙宽度对粉末松装密度的影响。

The results showed that when 20% of BKP treated by PFI mill for 80 thousand revolutions added into HYP, tensile index of the hand sheet increased by 103%; z direction strength increased by 80%, and when 20% of BKP treated by PFI mill for 50 thousand revolutions added into HYP, tear index of the hand sheet increased by 120%. It indicated that BKP with rich fibrils can obviously improve the mechanical strength of HYP.

结果表明，在HYP中添加20%的经PFI磨8万转处理的BKP使手抄片的抗张指数提高了103%、z向强度提高了80%，添加20%的经PFI磨5万转处理的BKP使手抄片撕裂指数提高了120%，说明高度细纤维化的BKP能明显改善HYP的机械强度。

In order to meet the demand of the service life and improve the strength and stiffness of mill housing, as well as bring the property of materials into full play, this thesis studies the mill housing through modern design theory and method, which are based on through analysis of researches home and abroad.

本文以满足使用寿命要求为前提，以提高轧机机架的强度、刚度，充分发挥材料性能为目的，在对国内外研究现状进行了深入分析的基础上，对轧机机架应用现代设计理论与方法进行了研究。

Engineering, Procurement, Construction Management for SAG Mill with trommel including all auxiliaries like mill relining machine, bolt removal system, variable frequency drive, on line charge measuring system, automatic ball charging system etc.

对SAG磨机及滚筒筛的工程、采购与施工管理，其中包括所有辅件如磨机制动带机、螺栓拆除装置、变频机、在线装料检测系统与自动磨球装料系统等

Proceeded from the practice of the new type cold rolling mill with multi-array rolls and through the analysis of various factors in the production of tube cold-rolling mill, some improvements have been made with the raising productivity.

从设计和调试多排辊式冷轧管机的实践出发，以生产率计算公式为依据，分析了影响冷轧管机产量的各种因素，提出了一些相应的改进措施。

While analyzing the crackie of the ball mill, in order to forecast the expansion speed of the crackle and the surplus life-span of the ball mill tube, some relevant theory of fracture mechanics was combined with finite element analysis for the first time, this is a better way with practical innovation.

在分析球磨机裂纹时，首次将有限元分析的结果与断裂力学中相关理论结合起来，对球磨机筒体进行了裂纹扩展速度预测和剩余寿命预测，具有一定的实用创新性。

By means of finite element method, we analyze the stress distributing and fatigue state of tube mill hollow shaft of some factory applied self-produce FE soft ANSYS, provide the bases for estimating working circumstance of tube mill of running state.

利用有限元分析方法，应用自制的有限元软件ANSYS程序，对某厂管磨机出料中空轴的应力分布及疲劳状态进行分析研究，从而为判断运行状态中管磨机的工况提供依据。

In order to detect load in tumbling box correctly,the frequency band that could reflect information of mill ball load was obtained from the vibration signal collected from ball mill bearing block.The signal was analyzed by energy method based on wavelet transform,from which the frequency band signal was picked out to show the corresponding coal level in tumbling box.

为了更准确地检测料位，对球磨机轴承座振动加速度信号进行采集，从振动信号中提取了反映料位信息的特征频段，利用小波分析技术对信号进行了能量分析，分离出反映滚筒内存煤量信息的信号，为实现球磨机料位的自动控制提供了理论依据。

The paper introduces the development of the thickness control technology for strip mill, and reasons affecting thickness variation, and discusses the principle of AGC Control on cold mill, the algorithm and characters.

摘要介绍板带轧机厚度控制的发展及影响板带厚度波动的原因；分析、讨论冷轧机应用的各种 AGC 的控制原理、控制算法以及各自的特点。

Several projects were proposed in allusion to the problems which were reflected in the old walking beam heating-furnace hydraulic system in Si-steel mill, and the best of which were confirmed according to the principles proposed by workers in the mill.

文中针对武钢热轧厂硅钢步进梁式加热炉液压系统存在的问题提出了几种改造方案，并根据工厂提出的改造原则确定了最佳改造方案。

This paper designs the communication system of radio telescope FAST.

针对500m口径球面射电望远镜FAST分布式控制系统的特点完成了其通信系统的设计。

Political sheep's step-by-step a large number of fossils unearthed in the county soil Ma Ali after rural village in the middle of sallow pelitic siltstone.

步氏和政羊化石大量出土于广河县阿力麻土乡后山村，产于灰黄色泥质粉砂岩中。