In this paper, relationship between full-decarbonisation temperature of high-carbon steel on surfaces and their phase structures have been explained with phase rule and Fe-Fe_3C phase diagram. 用相律解释了由实验得出的表面高碳钢发生全脱碳的温度与其金相组织的对应关系。
Planning and Scheduling the Production of Steel Tubes with Balance-based Rule 基于均衡排产规则的钢管生产计划调度
Steel tape rule with control button in plastic case 带控制按钮的塑料壳钢卷尺
The steel liquid superheat, velocity and rule of secondary cooling are important process parameters influence on billet internal quality. 钢水过热度、拉速和二冷制度是影响铸坯内部质量的重要工艺参数。
The elastic-plastic increment equilibrium equation of the node in the steel frame is obtained by using the stability function element, the space yield surface equation and the plastic flow rule. 针对结构中的钢框架,采用稳定函数单元模型、空间屈服面方程及塑性流动法则,建立了钢框架结构节点的弹塑性增量平衡方程;
Finite element analysis method of steel plasticity adopted, the drawing process of the head with thick wall was simulated with ANSYS software and the change rule of formed wall thickness was analyzed. 采用钢塑性有限元法,使用ANSYS有限元分析软件模拟了半球形厚壁封头冲压成形的整个过程,分析了成形后封头壁厚的变化规律。
According to the speciality of the great steel structure, the good painting rule and program are worked out, the cause of defect in the working process is found out, the working quality is controlled to meet the demand of technical specification and the contract. 根据大型钢结构的特点,制订合理的涂装方案和涂装工序,找到施工中容易产生缺陷的原因,寻找能解决方案,进行施工质量控制,以达到技术要求。
In the process of friction testing in which the TRIP steel with transformation characteristics is continuously sliding in unilateralism, variety rule of the friction noise intensity was studied. 在销盘摩擦磨损试验机上建立了一套摩擦噪声测试系统,研究了具有相变特征的TRIP钢在单向连续滑动的摩擦试验过程中,摩擦噪声的强度的变化规律。
The paper studies some problems of steel wire damage, it includes the analyse of detection principle, the design of sensor, analyse method of signal and the characteristic and of the varied rule of detection signal. 本课题就检测钢丝绳损伤中的一些问题进行了研究,其中主要包括检测原理分析、传感器的设计、检测信号的处理方法以及钢丝绳不同损伤状况下的检测信号特点及其变化规律。
US Patented Tooling Technology& KEVRON Steel Rule Die 美国专利制模技术&KEVRON新型钢带落料模
Improving conventional testing methods, the device got the wire-feed-speed signal by using digital sensor-photoelectric encoder instead of steel rule and stop watch. 装置硬件改进了传统的送丝装置性能测试方式,采用数字式光电编码器来测试送丝速度,提高了测试精度;研制了新的利用行走小车机构,同时采用压力传感器来测试送丝阻力的方法。
It was studied that the effect of the quantity of steel slag and silica fume on concrete strength and fluidity as well as the rule of the strength of concrete with steel slag and silica fume. 研究了钢渣、硅粉掺量对混凝土强度与流动性的影响以及钢渣、硅粉混凝土强度规律。
The analysis obtains this bridge in the surface the rigidity to be bigger than outside the surface the rigidity, conforms to the steel pipe concrete arched bridge to inspire the rule. 利用有限元模型对彩虹大桥进行了理论模态分析,计算出该桥理论自振频率和振型,分析得出该桥的面内刚度大于面外刚度,符合钢管混凝土拱桥振型规律。
According to the structure and the joint forms of steel tube modular falsework system, this paper also gives the stability and load capacity rule of scaffolds, setting up the mechanic model and puts forward the calculate methods of structural internal forces and stability. 根据钢管支架模板支撑系统的结构及连接形式,确定了支架稳定及承载力准则,建立了力学模型,提出了结构内力和稳定性计算方法。
The frequency spectrum of these steel shells without destructive shows the characteristics of clear spectrum and comb-like distribution of peak points. This is in accordance with the feature of musical tone rule. 无损的钢壳结构的频谱具有谱图清晰、峰点分布呈梳齿状等特征,这与乐音准则法中乐音准则的特征相符。
The test used three same steel shells. Through the vibration test, the spectral distribution rule of these shells has been obtained. 用三个相同的钢质壳体结构进行试验,通过振动测试获得了三个钢壳的频谱分布规律。
Continuous metal cast process is a new technology of liquid steel directly casting into billet steel, which ultimately changes the rule position of the die casting in metallurgy. 连铸技术是将钢水直接浇注成钢坯的一项新工艺,它的出现从根本上改变了铸模工艺在冶金技术中所占据的统治地位。
Cross position between cross ribs and longitudinal beam of orthotropic steel bridge decks with open-shaped ribs in steel truss bridges most easily appears fatigue crack. Stress concentration at every intersegmental cross following decline first and then increase rule. 钢桁梁桥中正交异性钢桥面板的横肋翼缘与纵梁交叉处最容易出现疲劳裂纹,并且在每个节间交叉处应力集中值遵循先减小后增大的规律。
Through controlling the axial compression ratio, shear span ratio, match steel form, loading direction main factors, such as mechanics analysis of component classification comparison and analysis, and optimize the design, get rule. 通过控制轴压比、剪跨比、配钢形式、配钢量、加载方向等主要影响因素,对构件进行受力分析,并进行分类对比分析,得到一定的规律便于设计的优化。