Process for the manufacture of compacts in a powder press
    1.
    发明授权
    Process for the manufacture of compacts in a powder press 失效
    在粉末压机中制造压块的方法

    公开(公告)号:US07211217B2

    公开(公告)日:2007-05-01

    申请号:US10225747

    申请日:2002-08-22

    IPC分类号: B22F1/00 B22F1/02

    摘要: A process for the manufacture of compacts, particularly cemented-carbide cutting blades, by compressing metallic powder and subsequently sintering the compacts wherein the compacts are formed in a powder press having a die-plate, an upper ram and at least one lower ram which are associated with a die-bore and are adapted to be actuated by a hydraulic press cylinder with the rams having associated thereto force-measuring devices and path-measuring devices to measure the compression forces during the ram feed motion up to the final positions, wherein the value of the energy to be applied by the upper ram is stored for a compact of predetermined geometry and dimensions and a predetermined material, that the overall energy to be applied by the upper and lower rams is further stored as a second value, that the feed motion of the upper ram is completed when the energy applied by the ram has reached the predetermined first value and the feed motion of the lower ram is effected depending on the application of the residual energy and is completed when the overall energy has reached the predetermined second value.

    摘要翻译: 一种用于制造压块,特别是硬质合金切割刀片的方法,通过压缩金属粉末并随后烧结压块,其中压块在具有模板,上压头和至少一个下压头的粉末压力机中形成, 与模孔相关联并且适于由具有与其相关联的压头的液压冲压缸致动力测量装置和路径测量装置来测量在柱塞进给运动期间的压缩力直到最终位置,其中 由上部压头施加的能量的值被存储为具有预定几何尺寸和尺寸和预定材料的压实体,使得由上部和下部柱塞施加的总能量被进一步存储为第二值,即进给 当由冲头施加的能量已经达到预定的第一值时,上冲头的运动完成,并且下冲头的进给运动根据第 e施加剩余能量并在总能量达到预定的第二值时完成。

    Method and apparatus for minimizing the spread of maximum compression forces in a powder press
    2.
    发明授权
    Method and apparatus for minimizing the spread of maximum compression forces in a powder press 失效
    用于最小化粉末压机中最大压缩力的扩散的方法和装置

    公开(公告)号:US07147820B2

    公开(公告)日:2006-12-12

    申请号:US10225604

    申请日:2002-08-22

    IPC分类号: B22F3/00

    摘要: A method for minimizing the spread of the maximum compression forces in compacting powder, specifically metallic powder, by means of a powder press which has a die-plate, an upper ram, and at least one lower ram which are associated with a die-bore and are respectively operable by a hydraulic press cylinder, and a charging shoe movable on the die-plate along a predetermined path for filling the die-bore with the powder, wherein the maximum compression force of at least the upper ram is measured upon arrival at a predetermined position, the charging shoe, the die-plate, the upper ram and/or lower ram are vibrated at a predetermined frequency and amplitude during the filling operation and/or at the beginning of the compression procedure and, in addition, the filling time or the course of charging shoe motion in time are predetermined, wherein the frequency distribution of the maximum compression force values is determined at intervals and the standard deviation is determined therefrom for the maximum compression force, the standard deviation is compared to a predetermined value, if desired, and the vibration parameters, the course of motion in time and/or the path of charging shoe travel are varied according to a predetermined program until the standard deviation has reached the predetermined value or a minimum.

    摘要翻译: 一种通过粉末压制机将压实粉末(特别是金属粉末)中的最大压缩力的扩散最小化的方法,所述粉末压制机具有与模孔相关联的模板,上压头和至少一个下压头 并且可分别通过液压缸和一个可沿着预定路径移动的模具板上的充填鞋,用于用粉末填充模孔,其中至少在上冲头的最大压力在到达时测量 在填充操作期间和/或在压缩过程开始时,预定位置,充电块,模板,上压头和/或下压头以预定的频率和振幅振动,此外,填充 预先确定时间或鞋子运动时间的过程,其中最大压缩力值的频率分布以间隔确定,并且由此确定标准偏差 r最大压缩力,如果需要,将标准偏差与预定值进行比较,并且根据预定程序改变振动参数,时间上的运动过程和/或充电靴行进路径,直到标准偏差 已达到预定值或最小值。

    Process for compacting powdered material
    6.
    发明授权
    Process for compacting powdered material 有权
    压实粉末材料的方法

    公开(公告)号:US06827889B2

    公开(公告)日:2004-12-07

    申请号:US10194581

    申请日:2002-07-13

    IPC分类号: B29C4302

    CPC分类号: B30B11/005

    摘要: A process for compacting powdered material to form a compact of a predetermined thickness and having at least one lateral oblique surface by means of a bore in a die bolster for receiving the powdered material and an upper ram and a lower ram, which are operable by means of a hydraulic power-exerting device and are positionable by means of a control device with respect to the die bolster, comprising the following steps: The deformations of the die bolster are measured or calculated for various compacting forces and the correlating values are filed as a table in a memory with the deformations forces being determined from the difference of the compacting forces of the two rams, and Deformation is determined during the compaction procedure by applying the deformation force measured to the table and the feed length of the upper and lower rams is corrected depending on deformation.

    摘要翻译: 一种用于压实粉末材料以形成预定厚度的压块并且具有至少一个横向倾斜表面的方法,所述至少一个横向倾斜表面借助于用于容纳粉末材料的模具中的孔,以及可通过装置操作的上部压头和下部压头 的液压动力装置,并且可通过相对于冲模的控制装置定位,包括以下步骤:测量或计算模枕的变形以用于各种压实力,并且将相关值作为 具有变形力的记录器的表格根据两个公柱的压实力的差异确定,并且在压实过程期间通过将测量的变形力施加到工作台来确定变形,并且校正上和下公柱的进给长度 取决于变形。

    Process for the manufacture of compressed articles by compacting metallic powder and subsequently sintering the compact
    7.
    发明授权
    Process for the manufacture of compressed articles by compacting metallic powder and subsequently sintering the compact 有权
    通过压制金属粉末并随后烧结该压块的方法制造压缩制品

    公开(公告)号:US06562291B2

    公开(公告)日:2003-05-13

    申请号:US09798802

    申请日:2001-03-02

    IPC分类号: B22F300

    摘要: A process for the manufacture of compressed articles, particularly cemented-carbide cutting blade inserts, by compacting metallic powder and subsequently sintering the compact, particularly cemented-carbide reversible cutting blade inserts, which have a seating surface and at least one cutting edge extending approximately in parallel with the seating surface which is at a predetermined distance from the seating surface, by means of a press having a die-plate and a top ram and a bottom ram, comprising the steps of: Charging a predetermined volume of metallic powder into the die-plate bore with the bottom ram taking a predetermined charging position in the die-plate bore, Displacing the bottom ram and the top ram to predetermined first and second positions, Displacing the bottom ram and, if need be, the top ram more while simultaneously measuring the compressive force at least for the bottom ram with the shift of the bottom ram or top ram being effected along a predetermined curve desired for the compressive force, Terminating the charging movement of the bottom ram and, if need be, the top ram when a predetermined value is reached for the compressive force.

    摘要翻译: 一种用于制造压缩制品,特别是硬质合金切割刀片插入件的方法,其通过压实金属粉末并随后烧结紧凑的,特别是硬质合金的可逆切割刀片刀片,其具有就座表面和至少一个大致在 通过具有模板和顶部压头和底部压头的压力机平行于与就座表面预定距离的座面,包括以下步骤:将预定体积的金属粉末装入模具中 板底孔,底部压头在模板孔中具有预定的充电位置,将底部压头和顶部压头移动到预定的第一和第二位置,同时更换底部压头,如果需要的话,顶部压头 至少对于底部压头的压力测量,其中底部压头或顶部压头的移动沿着期望的f的预定曲线来实现 或压缩力,当压缩力达到预定值时,终止底部压头的充电运动,如果需要的话,停止顶部压头。

    Method for operating a rotary press and concentrically running press
    8.
    发明授权
    Method for operating a rotary press and concentrically running press 有权
    操作旋转压力机和同步运行压力机的方法

    公开(公告)号:US08337741B2

    公开(公告)日:2012-12-25

    申请号:US11411278

    申请日:2006-04-25

    IPC分类号: B29C59/02

    CPC分类号: B30B15/32 B30B11/08

    摘要: A method for operating a rotary press, comprising a rotor rotatably driven about a vertical axis that has a die-plate and upper and lower rams which, while being guided vertically in guides of the rotor, interact with holes of dies in the die-plate wherein at least one compression station is provided and has an upper and a lower pressing roller past which the presser rams run along and by which they are moved towards the die-bore for the purpose of compacting the material in the die-hole, wherein the upper and lower rams are lifted subsequent to the compression procedure, causing the lower ram to eject a compact from the die and the compact to be stripped by a stripper in the direction of a discharge chute, characterized in that while an compact ejection procedure is under way the upper ram stands upright on top of the compact and is lifted therewith and the stripper seizes the compact laterally while the upper ram is still standing upright on top of the compact.

    摘要翻译: 一种用于操作旋转压力机的方法,包括围绕具有模板的垂直轴可旋转地驱动的转子以及在转子的引导件中垂直引导的上下游凸轮与模具板中的模具孔相互作用 其中至少一个压缩站被设置并且具有上压辊和下加压辊,所述压紧机构通过所述上挤压辊和下挤压辊,所述压紧凸起沿着模具孔移动,并且由此挤压工位朝向模孔移动,以压实模孔中的材料, 上压杆和下压杆在压缩过程之后被提升,导致下压头从模具中弹出压实件,并且压块通过剥离器在排料槽的方向上被剥离,其特征在于,紧凑喷射过程在 方式是上压脚直立在压块的顶部上并且被提升,并且剥离器横向抓住压块,同时上压脚仍然直立在压块的顶部上。

    Method for operating a rotary press and concentrically running press
    9.
    发明申请
    Method for operating a rotary press and concentrically running press 有权
    操作旋转压力机和同步运行压力机的方法

    公开(公告)号:US20060255506A1

    公开(公告)日:2006-11-16

    申请号:US11411278

    申请日:2006-04-25

    IPC分类号: B29C51/00

    CPC分类号: B30B15/32 B30B11/08

    摘要: A method for operating a rotary press, comprising a rotor rotatably driven about a vertical axis that has a die-plate and upper and lower rams which, while being guided vertically in guides of the rotor, interact with holes of dies in the die-plate wherein at least one compression station is provided and has an upper and a lower pressing roller past which the presser rams run along and by which they are moved towards the die-bore for the purpose of compacting the material in the die-hole, wherein the upper and lower rams are lifted subsequent to the compression procedure, causing the lower ram to eject a compact from the die and the compact to be stripped by a stripper in the direction of a discharge chute, characterized in that while an compact ejection procedure is under way the upper ram stands upright on top of the compact and is lifted therewith and the stripper seizes the compact laterally while the upper ram is still standing upright on top of the compact.

    摘要翻译: 一种用于操作旋转压力机的方法,包括围绕具有模板的垂直轴可旋转地驱动的转子以及在转子的引导件中垂直引导的上下游凸轮与模具板中的模具孔相互作用 其中至少一个压缩站被设置并且具有上压辊和下加压辊,所述压紧机构通过所述上挤压辊和下挤压辊,所述压紧凸起沿着模具孔移动,并且由此挤压工位朝向模孔移动,以压实模孔中的材料, 上压杆和下压杆在压缩过程之后被提升,导致下压头从模具中弹出压实件,并且压块通过剥离器在排料槽的方向上被剥离,其特征在于,紧凑喷射过程在 方式是上压脚直立在压块的顶部上并且被提升,并且剥离器横向抓住压块,同时上压脚仍然直立在压块的顶部上。