Results 1 to 10 of about 48 (46)

Influence of key parameters in steelmaking progress on the inclusion defects of rolled IF steel sheet [PDF]

open access: yes, 2017
Aiming at the steelmaking process of IF steel in Han-Steel, the relationship between key parameters and the defects of the rolled sheet was investigated, and the correlation among the parameters was also analyzed through the logic regression analysis ...
BAO Yan-ping   +6 more
core   +1 more source

Microstructure and texture of Hi-B steel produced by TSCR process [PDF]

open access: yes, 2016
The microstructure and texture evolution of Hi-B steel produced by thin slab casting and rolling (TSCR) process in the laboratory was studied by metalloscopy and scanning electron microscopy.
CHOU Sheng-tao   +4 more
core   +1 more source

Cluster analysis of strip flatness characteristics for ultra-wide cold rolling mills [PDF]

open access: yes, 2016
In order to master the flatness characteristics of strips with different widths for ultra-wide tandem cold rolling mills, taking the sufficient flatness detection data of 1900 mm strips from 2180 mm cold rolling mills as a research object and considering
BAO Ren-ren   +5 more
core   +1 more source

Deformation and recrystallization texture features of medium temperature reheated grain oriented silicon steel containing copper [PDF]

open access: yes, 2016
The unique texture evolution and secondary recrystallization behavior of medium temperature reheated grain oriented silicon steel containing copper were analyzed by comparison with those of conventional grain oriented silicon steel and high permeability ...
LI Hai-jiao   +3 more
core   +1 more source

用电化学阻抗谱研究提高锆基无铬化学转化膜耐蚀性的方法 [PDF]

open access: yes, 2018
采用含1.4%(质量分数)ZRT-955陶化环保处理剂的水溶液(pH=4.5),在20°C下对Q235钢板表面锆化处理12 min,通过测量所得锆化膜在0.35%(NH4)2SO4+0.05%NaCl的模拟汗液中的电化学阻抗谱(EIS),探索了烘干温度和缓蚀处理对膜层耐蚀性的影响。确定最佳烘干温度为180°C ...
徐子谦, 李明芳, 辛钢, 马鸿婷
core   +1 more source

冷弯方钢管标准试件高温下力学性能试验

open access: yesJianzhu Gangjiegou Jinzhan, 2021
由于冷成型钢材与传统热轧钢存在材料和制作工艺上的不同,导致二者在高温环境下具有不同的力学表现行为。探讨了一种冷成型钢材在不同温度下的力学性能,试件分别取自截面尺寸为600mm×16mm,700mm×20mm,800mm×22mm的方钢管,取件位置包括方钢管的平板区、转角区和焊缝处。试验采用稳态试验的方法分别将试件从常温至700℃的环境下拉断,试验共进行49组。试验获得的力学指标包括弹性模量、屈服强度、抗拉强度、极限拉应变、断裂应变以及几个特征强度 ...
刘红波   +3 more
doaj  

The YAG laser texturing technology and application with controllable disorder distribution [PDF]

open access: yes, 2011
The special morphology of spots isolated from each other could lead the laser texturing (LT) sheet to better stamping and coating properties, compared with shot Blast texturing (SBT) sheet and Electro-discharge Texturing (EDT) sheet. While the spots with
占剑, 杨明江, 王扬, 王红才
core   +1 more source

Inclusions in low carbon aluminum killed steel slabs at high casting speed [PDF]

open access: yes, 2016
Inclusions in the surface of low carbon aluminum killed steel slabs cast at high casting speed were analyzed by Aspex automated scanning electron microscopy in a large area.
JI Yun-qing   +4 more
core   +1 more source

冷轧圆端椭圆钢管压弯构件滞回性能研究

open access: yesJianzhu Gangjiegou Jinzhan, 2022
对不同轴压比和压弯方向的5个冷轧圆端椭圆钢管试件进行拟静力试验研究,得到各试件的滞回曲线并讨论了其破坏模式、屈服/极限荷载、延性和耗能能力。基于试验结果,建立1 080个圆端椭圆钢管压弯构件有限元模型,并开展参数分析,提出实用抗震设计方法。研究表明:柱脚的局部屈曲导致了试件的破坏,不同压弯方向的试件的局部屈曲破坏形态不同。试验中钢管截面的平直板段最先屈曲,且具有稳定的屈曲后性能。更大的轴压比会造成更早的局部失稳和更严重的柱底破坏,从而导致试件延性降低。绕强轴压弯试件的截面塑性弯矩可以得到更充分的发展 ...
吕兆华, 王朝阳, 张洁, 方成
doaj  

Effects of Controlled Rolling and Controlled Cooling on Microstructure and Mechanical Properties of Low-Alloy Steel Q355D Heavy Plates

open access: yesTeshugang, 2021
The 250 mm casting slab of steel Q355D bearing 0. 14% ~ 0. 18% C and 1.40% ~ 1.60% Mn is hot-rolled by the controlled rolling process. The results show that the microstructure of rolled plate is fine and uniform by rough rolling at 1050 - 1130 ...
吕晓芳, 孙伟, 杜慧起
doaj  

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