Methods to improve the quality of inner electroplate of connector with small and deep holes;
提高小孔、深孔接触件电镀中孔内镀层质量的方法
Type selection of ф3.40m large diameter and deep hole drilling equipment for No 3 main tower pier of Wuhan Tianxingzhou great Yantze River bridge;
武汉天兴洲长江大桥3号主塔墩ф3.40m大直径深孔钻孔设备选型
By fundamentals analysis of linearity surveyor of domestic and international and relatively surveyor, design deep-hole linearity surveying system based on relatively surveyor, and study structure and software of that system, for linearity examination have certainly actual significance in deep-hole machining.
在分析国内外直线度测量方法和相对比较测量法原理的基础上,设计出了基于相对比较测量法的深孔直线度测量系统,对于解决深孔零件加工中的直线度检测具有实际意义。
The thesis simply expounds the construction experience of the face deep-hole through bedrock weathering zone,and insures the quality of perfect engineering.
本文简要介绍了复杂地质条件下,工作面深孔通过基岩风化带,并且保证优质工程的施工经验。
This paper introduced the mechanism of vibration in the process of deep hole boring,developed a dynamic modal of the damping boring bar,optimizing the parameters of the damping system,analyzed the transient dynamic and harmonic response of the damping boring bar.
介绍了深孔镗削加工过程中产生振颤的机理,建立了减振镗杆的动力学模型,在此基础上优化减振系统的参数,并且对减振镗杆进行瞬态动力学和谐响应分析,分析结果表明该减振系统具有良好的减振性能。
Based the characteristic of deep hole boring chatter,a dynamic model of magnetorheological(MR) intelligent boring was established by means of equivalent linearization technique.
针对深孔镗削过程中的颤振问题,提出了一种基于磁流变液的智能镗杆构件,并根据深孔镗削颤振的特点建立了磁流变智能镗杆切削系统的动力学模型。
Research of deep hole step burst CAD system;
深孔台阶爆破CAD系统研究
Research the application of the ultra-deep hole blasting technique;
超深孔爆破技术及应用研究
Application of bench caving with medium-length hole method in Xinhua Molybdenum Mine;
中深孔阶段崩落法在新华钼矿的应用
The way of improving medium-length hole blasting effect in mine stope;
提高采场中深孔爆破质量的途径
Application of medium-length hole non-electric blast system in underground;
井下中深孔非电起爆系统的应用
The calculation of surface deep-hole blasting parameters of Paishanlou gold mine in Liaoning;
辽宁省排山楼金矿露天深孔爆破参数的计算
Discussion on the rock fragmentation of deep-hole blasting for Guishan quarry;
龟山料场深孔爆破的岩石破碎块度问题的探讨
To lower blasted boulder yield is one of the most important technical considerations in deep-hole blasting operations of mine.
降低深孔爆破落矿大块率是矿山凿岩中的一个重要课题。
The deep-hole near-dry machining system and the structure design of deep-hole cutter were introduced.
结合干式切削和深孔加工的特点,提出一种亚干式深孔加工解决方案,介绍了亚干式深孔加工系统以及深孔刀具的结构设计。
The conventional methods have limitation in the small deep hole drilling with the increasing of the demands of accuracy and efficiency.
在机械加工中,对孔的加工质量和加工效率要求不断地提高,若再加上在不断出现的难加工材料上进行孔的钻削加工,这就使采用传统的钻削工艺加工小深孔越加显出其局限性。