Method of manufacturing magnetic particle, magnetic particle and magnetic recording medium
    1.
    发明申请
    Method of manufacturing magnetic particle, magnetic particle and magnetic recording medium 审中-公开
    磁粉,磁粉和磁记录介质的制造方法

    公开(公告)号:US20040231462A1

    公开(公告)日:2004-11-25

    申请号:US10791669

    申请日:2004-03-03

    IPC分类号: B22F009/24

    摘要: There is provided a method of manufacturing a magnetic particle, which comprises: the alloy particle preparation step of preparing an alloy particle capable of forming a CuAu type or Cu3Au type hard magnetic ordered alloy phase and the magnetic particle formation step; wherein in the alloy preparation formation step, by using a mixing and reaction device which has a stirring vane rotating at a high speed in the interior of a mixer, a plurality of kinds of solutions for preparing the alloy particle are supplied to the interior of the mixer, where the plurality of kinds of solutions L1 and L2 are mixed together and caused to react with each other by a liquid phase process, and at the same time the plurality of kinds of solutions are mixed together and caused to react with each other so that the peripheral speed in a leading end portion of the stirring vane is not less than 10 m/second.

    摘要翻译: 提供一种制造磁性颗粒的方法,其包括:制备能够形成CuAu型或Cu 3 Al型硬磁性有序合金相的合金颗粒的合金颗粒制备步骤和磁性颗粒形成步骤; 其中在合金制备形成步骤中,通过使用搅拌叶片在混合器内部高速旋转的混合反应装置,将多种用于制备合金颗粒的溶液供应到 混合器,其中多种溶液L1和L2混合在一起,并通过液相方法彼此反应,同时将多种溶液混合在一起并引起彼此反应, 搅拌叶片的前端部的圆周速度不小于10m /秒。

    Method of manufacturing magnetic particle, magnetic particle and magnetic recording medium
    2.
    发明申请
    Method of manufacturing magnetic particle, magnetic particle and magnetic recording medium 有权
    磁粉,磁粉和磁记录介质的制造方法

    公开(公告)号:US20040231463A1

    公开(公告)日:2004-11-25

    申请号:US10792297

    申请日:2004-03-04

    IPC分类号: B22F009/24

    摘要: The solution I is spouted from a first nozzle into a mixing chamber as a high-pressure jet stream of not less than 1 MPa and as a turbulent flow having a Reynolds number of not less than 10000 during the flow into the mixing chamber, and the solution II having a lower pressure than the solution I is spouted from a second nozzle into the mixing chamber as an orthogonal flow which intersects the solution I almost at right angles. The two solutions are mixed together and caused to react with each other, with the result that a mixed reaction solution Z containing alloy particles Z is formed.

    摘要翻译: 将溶液I作为不小于1MPa的高压喷射流从第一喷嘴喷射到混合室中,并且在流入混合室期间以雷诺数不小于10000的湍流喷射, 具有比溶液I低的压力的溶液II从第二喷嘴喷射到混合室中,作为与溶液I几乎成直角相交的正交流。 将两种溶液混合在一起形成反应,结果形成含有合金粒子Z的混合反应溶液Z。

    Method and apparatus for forming silver halide emulsion particles and method for forming fine particles
    3.
    发明申请
    Method and apparatus for forming silver halide emulsion particles and method for forming fine particles 失效
    用于形成卤化银乳剂颗粒的方法和设备及形成细颗粒的方法

    公开(公告)号:US20030224308A1

    公开(公告)日:2003-12-04

    申请号:US10420926

    申请日:2003-04-23

    IPC分类号: G03C001/015

    摘要: The mixing state of static mixing is optimized, so that it is possible to form silver halide emulsion particles in small sizes with an excellent mono-dispersion characteristic. An aqueous solution of haloid salt is blown out from a first nozzle into a mixing chamber as a rectilinear flow of turbulent flow, and before eddy viscosity formed when the rectilinear flow is blown out from the first nozzle of a small diameter to the mixing chamber of a greater diameter reaches a maximum, or before a maximum flow speed of the rectilinear flow is reduced to {fraction (1/10)} or below, an aqueous solution of silver nitrate is blown out from a second nozzle as a crossflow of turbulent flow which crosses the rectilinear flow at a substantially right angle and is entrained by the rectilinear flow, so that the two solutions are allowed to mix and react with each other instantaneously, and a liquid resulting from the mixing and reaction is discharged from a discharge duct.

    摘要翻译: 优化静态混合的混合状态,从而可以形成具有优异的单分散特性的小尺寸的卤化银乳剂颗粒。 将卤素盐的水溶液从第一喷嘴吹入混合室,作为湍流的直线流动,并且在直线流从小直径的第一喷嘴吹送到混合室的混合室之前形成的涡流粘度 更大的直径达到最大值,或者在直线流量的最大流速降低到{分数(1/10或更低)之前,硝酸银的水溶液从第二喷嘴吹出,作为湍流的交叉流, 直线流以基本上直角流动并被直线流动夹带,使得两种溶液瞬间混合和反应,并且从混合和反应产生的液体从排出管排出。