According to the testing and studying,ultimate strength,elongation and shrinkage on cross section of two kinds of steel bar were determined.
通过测试研究还得到两种钢筋的极限强度、延伸率和断面收缩率等其他高温力学性能参数。
The brittleness temperature I of Q235G was 1300℃ to melting point and the brittleness temperature III 750~850℃, the range of brittleness temperature III was narrow, and the minimum reduction of area about 48%.
测试结果表明,Q235G钢铸坯的高温强度较小,600℃时抗拉强度约164MPa,屈服强度和抗拉强度均随测试温度降低而增大;铸坯具有良好的塑性,脆性区温度范围较窄,第I脆性温度范围为1300℃至熔点,第III脆性温度范围为750~850℃,在850~1250℃内,该钢种连铸坯的断面收缩率均大于85%。
By analyzing the states of two samples and smelting and rolling process, it was found out that the essential reason resulting in area reduction disqualification of Steel 45 was flake.
通过对45钢两种试样状态及冶炼、轧制工艺的分析,找出了白点是导致45钢断面收缩率不合的根本原因,钢中氢含量高是内因,轧后冷速过快是外因。
Effect of process parameters on axial parts with super large area reduction during twice cross wedge rolling;
工艺参数对楔横轧二次楔轧制超大断面收缩率轴类件的影响
The axial part with large area reduction was numerically simulated by three-dimensional software named DEFORM-3,which was based on three-dimensional rigid plastic theory.
利用有限元软件DEFORM-3D,基于三维刚塑性的有限元理论,对大断面收缩率轴类零件成形过程成功地进行了楔横轧二次楔轧制成形的数值模拟,模拟所得的轧件形状与实际零件基本相同,给出了楔横轧二次楔轧制过程的应力应变分布等重要信息。
Forming principle of heavy section shrinkage cross wedge rolling by single wedge
楔横轧一次楔大断面收缩率成形机理
RESEARCH OF IMPROVING THE REDUCTION OF AREA OF SWRH82B WIRE ROD
提高大规格SWRH82B线材断面收缩率研究
Analysis on rolling stability of heavy section shrinkage cross wedge rolling
大断面收缩率楔横轧稳定轧制问题分析
Research of Percentage of Area Reduction of Quench & Temper Wire Applied to Auto Damping Spring
汽车减震弹簧用油淬火回火钢丝断面收缩率分析
Experimental study on internal defect of heavy section shrinkage workpiece under one cross wedge rolling
大断面收缩率一次楔入轧件心部缺陷的实验研究
reduction in area
(挤压后) 断面减缩率
boil-off shrinkage
精练收缩[率],退浆收缩[率]
fabric shrinkage
织物缩水率，织物收缩率
Analytical Solution of Water Depth in Parabolic-Shaped Channel with Contracted Section
抛物线形断面渠道收缩水深的解析解
high shrinkage fibre
高缩率纤维，高收缩纤维
An Approximate Calculation Formula of Contracted Water Depth in Free Flow Circular Cross-section
无压流圆形断面收缩水深的近似计算公式
Study of strain rate imaging in evaluating the postsystolie shortening in ischemic myocardium
应变率成像评价缺血心肌收缩后收缩
testing method for shrinkage of spun yarn
精纺纱的收缩率试验法
testing method for drying and firing shrinkages of ceramic whiteware clays
陶瓷用粘土干燥收缩率和烧成收缩率测定方法
fabric shrinkage test
织物收缩率试验，织物缩水试验
Effects of egg yolk containing cholecystokinin-antibody on growth performance and nutrient digestibility of weanling piglets
含胆囊收缩素抗体卵黄粉对断奶仔猪生产性能及养分消化率的影响
The area contraction ratio has obvious influence on the flow pattern, discharge, wall pressure and air pressure inside level rotary flow.
研究发现面积收缩率对流态、泄流量、壁面压强和空腔内的气体压强均有较大的影响。
The initial shrinkage temperature and the shrinkage change little with the increase of heating rate.
升温速率增大,坯片开始收缩的温度及收缩率几乎不变。