Interstitial free steels and method thereof
    55.
    发明授权
    Interstitial free steels and method thereof 失效
    无间隙钢及其方法

    公开(公告)号:US5200005A

    公开(公告)日:1993-04-06

    申请号:US652872

    申请日:1991-02-08

    Abstract: The strength of interstitial free steels is increased by up to 100% and the ductile to brittle transition temperature is decreased by up to 100.degree. C. by warm finish rolling in the single phase ferrite region below A.sub.rl to effect ferrite dynamic recrystallization of the steel microstructure to a ferrite structure of grain size having a grain size of up to 5 .mu.m, and especially an ultra fine grain size of 1 to 2 .mu.m; the method may be employed in various hot working methods including strip and rod mills, planetary hot rolling and extrusion.

    Abstract translation: 无间隙钢的强度提高高达100%,延性至脆性转变温度通过在Arl以下的单相铁素体区域中的热精轧降低高达100℃,以实现钢微观结构的铁素体动态再结晶 涉及粒径高达5μm的粒径的铁素体结构,特别是1〜2μm的超细晶粒度; 该方法可以用于各种热加工方法,包括带钢和棒磨机,行星式热轧和挤压。

    Steel rolling using optimized rolling schedule
    56.
    发明授权
    Steel rolling using optimized rolling schedule 失效
    采用优化轧制计划进行轧钢

    公开(公告)号:US4840051A

    公开(公告)日:1989-06-20

    申请号:US55945

    申请日:1987-06-01

    CPC classification number: B21B1/32 B21B1/26 B21B2201/04 B21B2265/22 Y10T70/375

    Abstract: A series of thermomechanical workings such as temperature-controlled torsional strains are applied to a specimen of steel at strain and temperature levels and interpass times selected to simulate rolling mill conditions. The measured stress values are compared with the temperatures of the steel during the working periods during which the respective values were obtained. Thermomechanical working schedules are repeated at selected varying starting and terminating temperatures thereby to obtain a series of possible rolling schedules. These simulations are selected so that a varying number of reduction passes in the sequence occur at steel temperatures below temperature A.sub.r3. The value of a selected parameter of the worked steel, e.g. yield strength, is measured at ambient temperature. From the rolling mill analogue of possible rolling schedule simulations, an optimized rolling schedule is selected which will predictably impart to the steel a value of the selected parameter falling within a predetermined range. Linear regression analysis is applied to empirically obtained rolling mill data to derive one or more linear relationships between a selected property (e.g. yield strength) of the steel and rolling mill parameters thereby to permit selection of an optimum rolling schedule suitable to obtain a preselected value of the selected property of the steel.

    Abstract translation: 将温度控制的扭转应变的一系列热机械工作应用于钢的样品的应变和温度水平以及所选择的插层时间以模拟轧机条件。 将测量的应力值与获得各个值的工作期间的钢的温度进行比较。 在选择的变化的起始和终止温度下重复热机械工作时间表,从而获得一系列可能的轧制时间表。 选择这些模拟,使得在低于温度Ar 3的钢温度下,顺序发生不同数量的还原。 加工钢的选定参数的值,例如 屈服强度,在环境温度下测量。 从可能的轧制计划模拟的轧机模拟中,选择优化的轧制计划,其可预测地赋予钢所选参数的值落在预定范围内。 线性回归分析被应用于经验获得的轧机数据以导出钢的选定性质(例如屈服强度)与轧机参数之间的一个或多个线性关系,从而允许选择适于获得预定值 钢的选定属性。

    Aza-benzazolium containing cyanine dyes
    60.
    发明授权
    Aza-benzazolium containing cyanine dyes 有权
    含有氰基染料的氮杂 -

    公开(公告)号:US07871773B2

    公开(公告)日:2011-01-18

    申请号:US11756765

    申请日:2007-06-01

    Abstract: Unsymmetrical cyanine dyes that incorporate an aza-benzazolium ring moiety are described, including cyanine dyes substituted by a cationic side chain, monomeric and dimeric cyanine dyes, chemically reactive cyanine dyes, and conjugates of cyanine dyes. The subject dyes are virtually non-fluorescent when diluted in aqueous solution, but exhibit bright fluorescence when associated with nucleic acid polymers such as DNA or RNA, or when associated with detergent-complexed proteins. A variety of applications are described for detection and quantitation of nucleic acids and detergent-complexed proteins in a variety of samples, including solutions, electrophoretic gels, cells, and microorganisms.

    Abstract translation: 描述了包含氮杂 - 苯并唑鎓环部分的不对称花青染料,包括由阳离子侧链取代的花青染料,单体和二聚花青染料,化学反应性花青染料和花青染料的缀合物。 当在水溶液中稀释时,受试染料实际上是非荧光的,但当与核酸聚合物如DNA或RNA相关联时或当与洗涤剂复合的蛋白质相关时,它们显示出明亮的荧光。 描述了用于检测和定量多种样品中的核酸和洗涤剂复合蛋白质的各种应用,包括溶液,电泳凝胶,细胞和微生物。

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