Centrifugal atomization for producing zinc powder
    64.
    发明申请
    Centrifugal atomization for producing zinc powder 有权
    用于生产锌粉的离心雾化

    公开(公告)号:US20090263728A1

    公开(公告)日:2009-10-22

    申请号:US12148748

    申请日:2008-04-22

    摘要: A centrifugal impact atomization process for producing zinc or zinc alloy powder from molten zinc. A stream of molten zinc is injected onto the surface of a spinning disk contained within an atomization chamber. The disk has a cup shaped cavity having an open end, opposing closed end and integral side walls. The disk may have baffles protruding into the open cavity core within the disk. The baffles may have straight or curved side surfaces. The disk is rotated at high speeds between about 10,000 and 15,000 rpm (revolutions per minute). The oxygen content in the chamber is preferably between about 1 and 6 vol %. Zinc powder is produced having more smaller size particles. Zinc alkaline cells utilizing such zinc product as anode active material show improved performance, especially as power source in high discharge services such as digital cameras.

    摘要翻译: 用于从熔融锌生产锌或锌合金粉末的离心冲击雾化工艺。 将熔融锌流注入到雾化室内的旋转盘的表面上。 盘具有杯形空腔,其具有开口端,相对的封闭端和整体侧壁。 盘可以具有突出到盘内的开口腔芯中的挡板。 挡板可以具有直的或弯曲的侧表面。 盘以约10,000至15,000rpm(每分钟转数)的高速旋转。 室中的氧含量优选为约1至6体积%。 生产具有更小尺寸颗粒的锌粉。 使用这种锌产品作为阳极活性材料的锌碱性电池显示出改进的性能,特别是作为诸如数码相机的高放电服务中的电源。

    Apparatus for preparing inorganic spheroidized particle
    65.
    发明申请
    Apparatus for preparing inorganic spheroidized particle 有权
    无机球化颗粒的制备装置

    公开(公告)号:US20060112784A1

    公开(公告)日:2006-06-01

    申请号:US11288257

    申请日:2005-11-29

    IPC分类号: B29B9/00 B22F9/10 B22F3/08

    摘要: An apparatus for preparing an inorganic spheroidized particle, wherein an inorganic powder is fed from a feed pathway for an inorganic powder to a combustion flame in a powder melting furnace, and melted or softened and spheroidized, and wherein the apparatus comprises a powder dispersing plate in the feed pathway for an inorganic powder; and a process for preparing an inorganic spheroidized particle comprising the step of preparing inorganic spheroidized particles with the apparatus for preparing inorganic spheroidized particles as defined above. The inorganic spheroidized particle prepared by the above process and apparatus can be suitably used for a spherical molding sand, a filler, a pigment or the like, especially in the case where the inorganic spheroidized particle is a ceramics particle.

    摘要翻译: 一种无机球状粒子的制造装置,其特征在于,将无机粉末从粉末熔融炉的燃烧火焰供给到无机粉末的燃烧火焰中,并且熔融或软化并球化,其中,所述装置包括粉末分散板 无机粉末的进料路径; 以及制备无机球状粒子的方法,其包括用上述制备无机球化粒子的装置制备无机球状粒子的步骤。 通过上述方法和装置制备的无机球状颗粒可适用于球形型砂,填料,颜料等,特别是在无机球化颗粒为陶瓷颗粒的情况下。

    Magnetic powder and isotropic bonded magnet
    66.
    发明授权
    Magnetic powder and isotropic bonded magnet 失效
    磁粉和各向同性粘结磁铁

    公开(公告)号:US06951625B2

    公开(公告)日:2005-10-04

    申请号:US10337986

    申请日:2003-01-07

    摘要: Disclosed herein is a magnetic powder which can provide magnet having excellent magnetic properties and having excellent reliability especially excellent heat stability. The magnetic powder is composed of an alloy composition represented by Rx(Fe1-aCoa)100-x-y-z-wByMz (where R is at least one kind of rare-earth element excepting Dy, M is at least one kind of element selected from Ti, Cr, Nb, V, Mo, Hf, W, Mn, Zr and Dy, x is 7.1-9.9at%, y is 4.6-8.0at%, z is 0.1-3.0at%, and a is 0-0.30), and the magnetic powder being constituted from a composite structure having a soft magnetic phase and a hard magnetic phase, wherein when the magnetic powder is mixed with a binding resin and then the mixture is subjected to injection molding or extrusion molding to form a bonded magnet having a density ρ[Mg/m3], the maximum magnetic energy product (BH)max[kJ/m3] of the bonded magnet at a room temperature satisfies the relationship represented by the formula (BH)max/ρ2[x10-9J·m3/g2] ≧ 2.10, and the intrinsic coercive force HCJ of the bonded magnet at the room temperature is in the range of 400-760 kA/m.

    摘要翻译: 本发明公开了一种磁粉,其能够提供具有优异的磁性能并且具有优异的可靠性,特别优异的热稳定性的磁体。 磁性粉末由以下组成:合金组合物,由以下组成:由R x 1(Fe 1-a),(C 1 -C 10) (其中R是除Dy之外的至少一种稀土元素,M是选自Ti,Cr中的至少一种元素, Nb,V,Mo,Hf,W,Mn,Zr和Dy,x为7.1-9.9at%,y为4.6-8.0at%,z为0.1-3.0at%,a为0-0.30) 磁性粉末由具有软磁性相和硬磁性相的复合结构构成,其中当将磁性粉末与粘合树脂混合后,将该混合物进行注射成型或挤出成型以形成密度为 rho [Mg / m 3],粘合磁体的最大磁能积(BH)最大值[kJ / m 3] 室温满足由公式(BH)表示的关系。最大值/最小值/最小值3 / g / SUP> 2> = 2.10,而内在的更强 在室温下,粘结磁体的力C C 在400-760kA / m的范围内。

    Process for producing spherical metal particles
    67.
    发明授权
    Process for producing spherical metal particles 失效
    球形金属颗粒的制造方法

    公开(公告)号:US5917113A

    公开(公告)日:1999-06-29

    申请号:US680644

    申请日:1996-07-17

    申请人: Gozo Suzuki

    发明人: Gozo Suzuki

    IPC分类号: B22F1/00 B22F9/10

    摘要: A process for producing spherical metal particles comprises the step of spraying a molten metal in a chamber filled with a refrigerant gas through a centrifugal atomizer, wherein the refrigerant gas is a composition comprising nitrogen and oxygen gases or nitrogen gas and air and the concentration of the oxygen ranges from 3 to 600 ppm on the basis of the weight of the composition. The production process of the present invention permits mass-production of fluent, spherical metal particles having a smooth surface, in low cost and excellent in dispersibility in a dispersing medium, which is required when the particles are used as a component for pastes or paint and varnishes, while using a small-sized chamber.

    摘要翻译: 一种制造球形金属颗粒的方法包括通过离心式雾化器将熔融金属喷射到填充有制冷剂气体的室中的步骤,其中制冷剂气体是包含氮气和氧气或氮气和空气的组合物, 基于组合物的重量,氧的范围为3〜600ppm。 本发明的制造方法允许以低成本和低分散性在分散介质中大量生产具有光滑表面的流动的球形金属颗粒,当颗粒用作糊剂或涂料的组分时所需的, 清漆,同时使用一个小型的房间。

    Atomizer with liquid spray quenching
    68.
    发明授权
    Atomizer with liquid spray quenching 失效
    雾化器用液体喷雾淬火

    公开(公告)号:US5738705A

    公开(公告)日:1998-04-14

    申请号:US560711

    申请日:1995-11-20

    IPC分类号: B22F9/08 B22F9/10

    CPC分类号: B22F9/08

    摘要: Method and apparatus for making metallic powder particles wherein a metallic melt is atomized by a rotating disk or other atomizer at an atomizing location in a manner to form molten droplets moving in a direction away from said atomizing location. The atomized droplets pass through a series of thin liquid quenching sheets disposed in succession about the atomizing location with each successive quenching sheet being at an increasing distance from the atomizing location. The atomized droplets are incrementally cooled and optionally passivated as they pass through the series of liquid quenching sheets without distorting the atomized droplets from their generally spherical shape. The atomized, cooled droplets can be received in a chamber having a collection wall disposed outwardly of the series of liquid quenching sheets. A liquid quenchant can be flowed proximate the chamber wall to carry the cooled atomized droplets to a collection chamber where atomized powder particles and the liquid quenchant are separated such that the liquid quenchant can be recycled.

    摘要翻译: 制造金属粉末颗粒的方法和装置,其中金属熔体在雾化位置由旋转盘或其它雾化器雾化,以形成沿远离雾化位置的方向移动的熔融液滴。 雾化的液滴通过一系列薄的液体淬火片,其连续地布置在雾化位置处,每个连续的淬火片处于与雾化位置相距增加的距离。 雾化的液滴被逐渐冷却,并且当它们通过一系列液体淬火片时可选地钝化,而不会使雾化的液滴从其大致球形的形状变形。 雾化的冷却液滴可以被容纳在具有设置在一系列液体淬火片的外部的收集壁的腔室中。 液体淬灭剂可以在室壁附近流动,以将冷却的雾化液滴携带到收集室,其中雾化的粉末颗粒和液体淬火剂被分离,使得液体淬灭剂可以再循环。

    Process for manufacturing Alnico system permanent magnet
    69.
    发明授权
    Process for manufacturing Alnico system permanent magnet 失效
    制造铝镍钴永磁体的方法

    公开(公告)号:US5520748A

    公开(公告)日:1996-05-28

    申请号:US397180

    申请日:1995-03-09

    CPC分类号: C22C33/0292 H01F1/086

    摘要: A process for manufacturing an Alnico system permanent magnet is disclosed in which the alloy powder of the Alnico system having the proper composition is manufactured through a rapid solidification process, so that the crushability and the formability should be superior, the sintered density should be high, and the magnetic properties should be excellent, as well as cheap in its manufacturing cost and simple in its manufacturing process. An alloy of Alnico system is subjected to a rapid solidification with a spinning solidifier wheel speed of 6-40 m/sec, thereby manufacturing a microcrystalline rapidly solidified powder. The powder is ground into a finer powder, and then a press-forming is carried out. Then a sintering is carried out at a temperature of 1100.degree.-1350.degree. C. for 0.5-4 hours. Then based on a single heat treatment, an external magnetizing force of 1-15 kOe is applied in a temperature range of 600.degree.-1000.degree. C., thereby carrying out a heat treatment under a magnetizing force. Thereafter, an aging heat treatment is carried out at a temperature of 500.degree.-700.degree. C. for 1-10 hours, thereby magnetizing the formed body.

    摘要翻译: 公开了一种制造Alnico系永磁体的方法,其中通过快速固化方法制造具有适当成分的Alnico系统的合金粉末,使得可压碎性和成形性应优于烧结密度, 磁性能优异,制造成本低,制造工艺简单。 AlNico系统的合金以6-40m / sec的纺丝凝固轮速度进行快速凝固,从而制造微晶快速凝固的粉末。 将粉末研磨成更细的粉末,然后进行压制成型。 然后在1100〜-1350℃的温度下进行烧结0.5-4小时。 然后基于单次热处理,在600℃-1000℃的温度范围内施加1-15kOe的外部磁化力,从而在磁化力下进行热处理。 此后,在500〜700℃的温度下进行时效热处理1-10小时,从而使成形体磁化。

    Method of and apparatus for producing metal powder
    70.
    发明授权
    Method of and apparatus for producing metal powder 失效
    金属粉末的制造方法和设备

    公开(公告)号:US5482532A

    公开(公告)日:1996-01-09

    申请号:US238353

    申请日:1994-05-05

    摘要: The invention provides a method of producing metal powders which is less likely permit variations in cooling rate, ensures rapid solidification at a great cooling rate and readily gives fine particles, and a production apparatus for the method. The method comprises injecting a cooling liquid into a cooling tubular body (1) along an inner peripheral surface thereof to form a cooling liquid layer (9) moving toward a cooling liquid discharge end of the tubular body (1) while swirling along the inner peripheral surface of the tubular body (1); supplying a molten metal (25) to a space (23) inside the cooling liquid layer (9); applying a gas jet (26) as directed toward the cooling liquid layer (9) to the molten metal (25) to divide the molten metal and supply the divided molten metal to the cooling liquid layer (9); and discharging the cooling liquid containing a metal powder solidified in the liquid layer (9) from the cooling liquid discharge end of the tubular body (1) to outside.

    摘要翻译: 本发明提供一种生产金属粉末的方法,其不太可能允许冷却速度的变化,确保以很大的冷却速度快速凝固并容易得到细颗粒,以及该方法的生产设备。 该方法包括:将冷却液沿其内周面喷入冷却管体(1),形成冷却液体层(9),朝向管状体(1)的冷却液排出端移动,同时沿着内周 管状体(1)的表面; 向冷却液层(9)内的空间(23)供给熔融金属(25); 将熔融金属(25)上的朝向冷却液层(9)的气体喷射(26)施加到熔融金属上以将分割的熔融金属供应到冷却液层(9); 并将含有在液体层(9)中固化的金属粉末的冷却液从管状体(1)的冷却液排出端排出到外部。