查询词典 rolling friction
- 与 rolling friction 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The experiment and the research indicate that:(1) Through the Hot-Continuous-Rolling production technics under small reduction ratio of 4.04 and 5.08, the rectangular continuous-casting billet of 235×265mm can be used to produce big size steel stick of Φ140mm and Φ 125mm whose macrostructure and mechanical properties meet the standards, this technics is viable;(2) This rolling technics can make the deformation penetrate to the center of the billet by low temperture and low velocity and big roller diameter and large reduction quantity at every pass and optimum design and arrangement of rollers, which is the key of Hot-Continuous-Rolling technics under small reduction ratio;(3) The sending technics used in Xining Special Steel Co.,Ltd can not use waste-heat of billet adequately, but the sensitive temperature section of A1N or sulphides or inclusions separating out is avoided, creating a favorablecondition for insuring good surface quality of final rolled steel;(4) The Hot-Continuous-Rolling technics under small reduction ratio has a close relationship with the billet quality control and the hot sending process control and the cooling control after rolling.
通过实验研究表明:(1) 235×265mm矩形连铸坯分别采用4.04和5.08的小压缩比热连轧生产工艺,所生产的Φ140mm和Φ125mm的大规格棒材,其低倍组织和机械性能均符合标准要求,该工艺是可行的;(2)本实验所采取的低温低速、大辊径大道次压下量轧制工艺加上轧辊孔型的优化设计与配置,可以使加工变形渗透到铸坯的中心,这一点是实现小压缩比热连轧生产工艺的关键;(3)西宁特钢在红送过程中虽然铸坯余热未能得到充分的利用,但是有效地避开了A1N、硫化物的析出及夹杂物偏析的敏感温度区,为保证最终轧材良好的表面质量创造了有利的条件;(4)小压缩比热连轧生产与铸坯质量控制,热送过程控制以及轧后冷却控制密不可分。
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Though it is a long history of the research on static friction, many problems, such as relationship between static friction and static contact time, the relationship between static friction and load, and the prediction of static friction coefficient have not yet fully studied.
虽然静摩擦的研究历史很悠久,但仍有一些问题没有解决,如静摩擦与静止接触时间的关系,静摩擦与载荷的关系,以及静摩擦系数的预测等问题。
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Therefore, the torque required to open the gate valve required torque than the closure of large, in addition, for a pair of contact between the sealing surface, the Non Rising Stem Resilient Seated Gate Valves coefficient of static friction between them than the dynamic friction coefficient, to make them from the static state generate the relative movement is required to exert greater force to overcome the static friction; due to temperature changes, so that the sealing surface pressure between the larger, need to overcome the static friction force also will be bigger, so that when you open the valve on the stem nut on the sometimes increase the torque exerted a lot.
所以,开启闸阀所需的力矩比关闭闸阀所需的力矩大,此外,对于一对互相接触的密封面来说,它们之间的静摩擦系数也比动摩擦系数大,要使它们从静止状态产生相对运动,需施加较大的力以克服静摩擦力;由于温度变化,使密封面间的压力变大,需要克服的静摩擦力也随之变大,从而使开启闸阀时,对阀杆螺母上施加的力矩有时会增大很多。" Moment analysis of valve operation "是由中国闸阀网提供的国际阀门新闻,译文仅供参考。另外,中国闸阀网还提供相关产品搜索:闸阀型号、闸阀价格、闸阀技术、闸阀新闻、闸阀生产商等。
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The results indicate that as the value of fractal dimension is increased, the interfacial static friction coefficient first increases and then decreases; the interfacial static friction coefficient decreases as the fractal roughness parameter increases; while the inter-facial static friction coefficient increases as the material property or total normal load increases; the curve of static friction coefficient versus dimensionless total normal load is convex when the fractal dimension becomes smaller or fractal roughness parameter is larger or material property becomes smaller.
研究结果表明:界面的静摩擦因数首先随分形维数的增加而增加,然后随分形维数的增加而减小;界面的静摩擦因数随分形粗糙度参数的增加而减小,但随材料特性的增加而增加,也随总法向载荷的增加而增加;当分形维数较小或分形粗糙度参数较大或材料特性较小时,静摩擦因数-量纲一的总法向载荷曲线为凸弧。
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The friction performances of carbon face were investigated with an inertia friction tester.The torque curve of carbon face was ideal,the coefficient of static friction was lower than that of dynamic in 0.28 MPa,the friction coefficient of static and dynamic decreased with the braking pressure increasing.To the fiber face,the coefficient of dynamic fric...
结果表明:碳质层的摩擦力矩在制动初期上升较快,中间过渡区平稳,尾部翘起较小;在制动压力小于0.28 MPa时静摩擦系数小于动摩擦系数,且动、静摩擦系数均随制动压力增加而减小;相对纤维层而言,采用碳质层摩擦时摩擦力矩曲线形态更好,连续制动时摩擦系数波动较小,磨损率低且能够有效保护偶件,是1种静/动摩擦系数比较低且适用于高载荷工况条件下使用的摩擦材料。
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The results show that when the porosity of sample was higher, compressure rate was higher and resilience rate was lower, however resilient rate of sample with higher porosity were increased notably when pressure was increased, and it tended to accord with of sample with lower porosity. The friction coefficient was higher when porosity of paper-based friction material was higher, and the friction coefficient tended to reduce and stabilize when braking pressure was increased. The friction coefficient of sample with high porosity tended to reduce and stabilize in continuous braking cycles.
结果表明:在相同载荷下,随着孔隙率增大,材料的压缩率增加而回弹率降低,随着载荷增加,高孔隙率材料的回弹率先明显增大,而后趋于稳定;在相同比压和转速下,孔隙率越高,材料的摩擦系数越大,随着比压增加,孔隙率高的材料摩擦系数逐渐降低,且不同孔隙率材料的摩擦系数逐渐趋于一致;在连续循环制动时,高孔隙率材料的摩擦系数逐渐降低并趋于稳定。
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By friction round shape of the different levels can be divided into cylindrical friction wheel drive, cylindrical trough friction wheel drive, three kinds of cone friction wheel drive.
按摩擦轮形状的不同,可分为圆柱平摩擦轮传动、圆柱槽摩擦轮传动、圆锥摩擦轮传动三种。
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It is shown that the friction force and bulkhead thrust are the main factors of shield thrust setting, while the friction between the cutterhead and soil is the main factors of cutterhead torque setting. Friction force between shield and soil would make front soil of shield upheave, and subsidence of surface soil is induced by ground loss when the friction force between the cutterhead and soil results in the surface settlement asymmetrical distribution.
通过计算发现,盾构施工中盾壳摩擦和正面推力是盾构推力设置的主要因素,而刀盘与土体摩擦是刀盘扭矩设置的主要因素,盾构前方土体隆起主要由盾壳摩擦引起,刀盘摩擦作用主要引起地表沉降的非对称分布,地表沉降主要由盾尾空隙产生。
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Friction rubber draft gear, as one of high-capacity draft gears, is developed after friction steel spring draft gear. Rubber has energy absorption capability and non-linear rigidity capability, so the friction rubber draft gear's capacity is usually higher than the friction steel spring bumper.
摩擦式橡胶缓冲器是继摩擦式钢簧缓冲器之后开发的一种大容量缓冲器,这种缓冲器利用了橡胶自身具有吸收能量及非线性刚度的特性,因此其容量一般比摩擦式钢弹簧缓冲器高。
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The static friction and kinetic friction of cylinder are tested. The mathematical model of friction is presented. Then author proposes the mechanical method to improve the friction character of cylinder.
第二章研究了气缸摩擦力的特性,对静/动摩擦力进行了全面的测试,提出了摩擦力数学模型,并提出了改善气缸摩擦力特性的机械措施。
- 相关中文对照歌词
- Zero Friction
- Rolling Down My Face
- Friction
- Thanks To The Rolling Sea
- Friction
- Blue Smoke
- Fix Me
- Proud Mary
- The Cover Of The Rolling Stone
- I'm F%#k'd Up
- 推荐网络例句
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Listen,point and check your answers.
听,指出并且检查你的答案。
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Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.
但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例,经过临床的诊断后,其中施以温针治疗的48例,疗效显著,报道如下。1临床资料本组病例48
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Some known methods of remnant pump detection and automatic laser shut-down use communications, such as an OSC.
一些已知的残余泵浦检测和自动激光关断的方法利用诸如OSC的通信。