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    • 3. 发明授权
    • Process for producing a grain-oriented silicon steel sheet or strip
having excellent magnetic properties
    • 具有优异的磁特性的晶粒取向硅钢板或带材的制造方法
    • US4437909A
    • 1984-03-20
    • US381878
    • 1982-05-25
    • Kensuke MoriHiromi MatsumotoYozo SugaTadashi NakayamaFumio Matsumoto
    • Kensuke MoriHiromi MatsumotoYozo SugaTadashi NakayamaFumio Matsumoto
    • C22C38/00B21B3/02C21D8/12H01F1/16H01F1/04
    • B21B3/02C21D8/1222
    • The present invention relates to a process for producing a grain-oriented silicon steel sheet or strip, wherein the crystals of the steel sheet or strip have an orientation of {110} and, further, the steel is easily magnetized in the rolling direction.Since the slab-heating temperature for a grain-oriented silicon steel is considerably higher than that for low carbon steel grades, coarsening of the crystal grains is likely to occur during heating, and the coarse crystal grains are elongated during hot-rolling in the rolling direction and remain in the hot-rolled steel sheet as portions of the grain-oriented silicon steel strip or sheet, where secondary recrystallization becomes incomplete, or as so-called streaks.It is an object of the present invention to provide a novel hot-rolling technique capable of preventing the generation of streaks and capable of enhancing the magnetic flux density of the final product in terms of the B.sub.8 value even in a case where the tendency of streaks to form is small.The present invention is characterized in that during hot-rolling a silicon steel slap is subjected to at least one pass in which the axial lines of the top working roll and the bottom working roll are non parallel, and as a result of these working rolls being non parallel, the grain-oriented electromagnetic steel sheet or strip has no streaks and has a high magnetic flux density.
    • 本发明涉及一种晶粒取向硅钢板或带材的制造方法,其中钢板或钢带的晶体取向为{110} <001>,此外,钢在轧制中易于磁化 方向。 由于晶粒取向硅钢的板坯加热温度显着高于低碳钢,所以在加热时可能会发生晶粒粗大化,轧制时的热轧时的粗晶粒细长 并且作为部分晶粒取向硅钢带或片材残留在二次再结晶变得不完全的条件下,或作为所谓的条纹残留在热轧钢板中。 本发明的目的是提供一种能够防止产生条纹并且能够根据B8值增强最终产品的磁通密度的新型热轧技术,即使在条纹趋势的情况下 形成很小。 本发明的特征在于,在热轧期间,对硅钢板进行至少一次通过,其中顶层工作辊和底部工作辊的轴线不平行,并且由于这些工作辊是 不平行,晶粒取向的电磁钢板或带材没有条纹并具有高的磁通密度。
    • 5. 发明授权
    • Process for producing a grain-oriented electrical steel sheet
    • 晶粒取向电工钢板的制造方法
    • US4563226A
    • 1986-01-07
    • US442084
    • 1982-11-16
    • Munetsugu MatsuoFumio MatsumotoTadashi Nakayama
    • Munetsugu MatsuoFumio MatsumotoTadashi Nakayama
    • C21D8/12H01F1/04
    • C21D8/1227
    • Conventionally, the silicon content of a grain-oriented electrical steel is approximately 3% at the maximum, since cold-rolling is difficult if the silicon content is high. Although conventional warm-rolling can occasionally mitigate the poor workability of a silicon steel having a high silicon content, it is impossible to control the texture of a cold-rolled strip and to completely prevent brittleness.The present invention provides a novel rolling method in which, due to the heating of a steel strip prior to the carrying out of cold-rolling, a desirable texture can be formed and rupture of the cold-rolled strip can be prevented. The strip is heated to within a temperature range, in which both the minimum temperature which is at least 200.degree. C. and at least equal to T.sub.L (.degree.C.)=(x-3.0).sup.2 .times.100, x being the silicon content in weight percent, and the maximum temperature which temperature range being is not more than 400.degree. C. and not more than T.sub.H (.degree.C.)=-200.times.log (1/y), y being the strain rate (second.sup.-1) during the cold rolling are determined so as to satisfy the temperature of the first cold rolling pass.
    • 通常,晶粒取向电工钢的硅含量最大为3%左右,因为如果硅含量高,则难以进行冷轧。 虽然常规的热轧可以偶尔减轻硅含量高的硅钢的可加工性差,但是不可能控制冷轧带材的质地并且完全防止脆性。 本发明提供一种新的轧制方法,其中由于在进行冷轧之前对钢带进行加热,可以形成所需的组织,并且可以防止冷轧带材的断裂。 将条带加热到温度范围内,其中最低温度至少为200℃,至少等于TL(℃)=(x-3.0)×2x100,x为重量的硅含量 百分比,该温度范围的最高温度不超过400℃,不大于TH(℃)= - 200xlog(1 / y),y为冷时的应变速率(秒-1) 确定轧制以满足第一冷轧道次的温度。
    • 8. 发明授权
    • Photometering method in photographic printer
    • 照相打印机中的测光方法
    • US4769677A
    • 1988-09-06
    • US037783
    • 1987-04-13
    • Fumio Matsumoto
    • Fumio Matsumoto
    • G03B27/32G03B27/72G03B27/73G03B27/80
    • G03B27/735
    • A photometering method in a photographic printer where color balance and density are adjusted by a color compensation filter and where a photoprint may be made by irradiating light on an original film through a mirror box, including the steps of: setting the color compensation filter to a photometering position so as to allow the light quantity per unit area of an image information detector including an image sensor to be within a predetermined area, photometering the original film with the image information detector, and then setting the color compensation filter to an exposure position for automatic photoprinting.
    • 一种照相打印机中的测光方法,其中通过色彩补偿滤光片调节色彩平衡和浓度,并且可以通过经由镜盒对原始胶片照射光进行照相印刷,包括以下步骤:将色彩补偿滤光片设置为 测光位置,以允许包括图像传感器的图像信息检测器的每单位面积的光量在预定区域内,用图像信息检测器对原始胶片进行测光,然后将色彩补偿滤光器设置为曝光位置 自动照相打印。
    • 9. 发明授权
    • Photographic printer and method for detecting and positioning frames
    • 摄影打印机和检测和定位框架的方法
    • US4727399A
    • 1988-02-23
    • US791997
    • 1985-10-23
    • Fumio Matsumoto
    • Fumio Matsumoto
    • G03B27/46G03B27/62G03B27/52
    • G03B27/6285G03B27/462
    • A photographic printer according to the present invention can automatically print films of an arbitrary size by directly and automatically detecting image data of a film negative to discriminate whether the firm negative is of a full or half size, and switches the conveying direction of the film based upon the result of the above discrimination, and adjusts the aperture of the mask at a printing unit. The method according to the present invention can detect and position frames at a high speed and high accuracy and yet with a simple structure which includes the steps of detecting image data of an original film, and determining a feeding length with the size data and edge detection of the original film and positioning imaged frames.
    • 根据本发明的照相打印机可以通过直接和自动地检测胶片负片的图像数据来自动打印任意尺寸的胶片,以区分牢固的负片是否为全尺寸或半尺寸,并且基于胶片的输送方向切换 在上述判别结果的基础上,调整打印单元的面罩的孔径。 根据本发明的方法可以以高速和高精度检测和定位框架,而且具有简单的结构,其包括检测原始胶片的图像数据的步骤,以及使用尺寸数据和边缘检测确定进给长度 的原始电影和定位成像帧。