This paper analyzes the deviation of cambered form witch is composed of batten and sheet in concrete construction,and then educes a relationship between width of sheet,deviation of cambered form and curvature radius of camber,in order to solve the problem of assemble spline formwork and increase construction quality of concrete curved surface.
分析了用板条和铁皮组装而成的曲面模板在曲面混凝土施工中的误差情况,同时给出了施工中板条宽度、曲面误差、曲面曲率半径之间的关系,以解决好拼装样条模板的问题,从而提高混凝土曲面的施工质量。
Genesis and Countermeasures of Hot Rolled Strip Steel Scale;
热轧带钢氧化铁皮的成因及对策
Improvement of Pickling Quality of SPHC Hot Rolled Strip Scale at Meigang;
梅钢SPHC带钢氧化铁皮酸洗质量改善
Preventing of Scale Defect Formation of Hot Rolled Coil Using Quality Management Method;
运用质量管理方法控制热轧卷氧化铁皮的发生
Studies on the Optimum Technology for Extraction of Polysaccharides from Suspension-cultured Protocorms of Dendrobium candidum;
铁皮石斛原球茎多糖提取最佳工艺研究
In vitro Propagation of Dendrobium candidum from Axenic Nodal Segments;
铁皮石斛茎节离体培养的研究
Antioxidant activity of crude and purified polysaccharide from suspension-cultured protocormns of Dendrobium candidum in vitro;
铁皮石斛原球茎多糖粗品与纯品的体外抗氧活性研究
The microstructure of iron oxide scales,as one of the essential factors,is important to pickling quality of the hot rolled strips.
氧化铁皮的显微结构是决定热轧带钢酸洗性能的本质因素之一。
With the utilization of the X-ray diffractometer and scanning electron microscope in the iron oxide scale on the surface of the steel sheet.
利用X射线衍射仪与扫描电镜对薄板表面氧化铁皮进行观察分析,以探讨其形貌、微区成分、物相 结构及含量对氧化铁皮与基体结合力的影响。
The detection of chemical composition,physical property,metallurgical structure,surface iron oxide scale of the products leads to quantified performance index differences,which helps identify the means to improve product quality.
分析了国内外几个厂家生产的帘线钢线材产品质量,对其产品的化学成分、物理性能、组织形态、表面氧化铁皮进行全面检测,找出不同产品各项性能指标的定量差异,明确了产品质量改进的途径。
The causes of difficult pickling of oxide scale of SPHC hot rolled strip were analyzed from chemical composition of strip,thickness of oxide scale,roughness of interfacial between oxide scale and strip,pickling technology,etc.
从SPHC带钢的成分、氧化铁皮厚度、氧化铁皮与基体结合面的粗糙度、酸洗试验、氧化铁皮的相结构分析入手,剖析了氧化铁皮酸洗困难的原因;在不影响带钢供冷轧所要求的力学性能和冷轧轧制力的情况下,通过调整热轧生产工艺,改善了SPHC带钢的酸洗质量。
The results showed,the black spots are in fact the oxide scale formed during hot rolling and remained after pickling;the black spots are primarily composed from Fe3O4 and FeO;and the higher the temperature,the thicker the scale is,the higher .
针对冷轧酸洗钢板黑斑缺陷问题,对Q195、STl3钢在不同试验温度下进行了氧化铁皮的生成、冷却、酸洗试验,对试验后的试样和生产现场钢板的表面进行了微观分析。
At the same time,the effect of the oxide scale on the heat transfer was also discussed.
均热炉的加热过程模拟系统是CSP生产线组织性能预报软件的重要组成部分 ;介绍了珠钢均热炉加热过程模拟系统所采用的板坯温度场模型、奥氏体晶粒长大模型及其实际模型效果 ,同时探讨了氧化铁皮对传热的影