Machining power supply for wire electrical discharge machine
    11.
    发明授权
    Machining power supply for wire electrical discharge machine 有权
    线材放电加工电源

    公开(公告)号:US07045735B2

    公开(公告)日:2006-05-16

    申请号:US10492592

    申请日:2002-04-22

    IPC分类号: B23H1/02

    CPC分类号: B23H7/04 B23H1/022

    摘要: Machining electrical power supply device for wire electrical discharge machining. Includes an electrical discharge state distinguishing circuit (6) for distinguishing at least two inter-electrode states, including electrical shorting and normal electrical discharge, between a wire electrode (E) and a workpiece (W), and an inter-electrode current waveform control means for supplying, and for switching between supply of, a triangular wave and a trapezoidal wave current to the electrodes. According to the inter-electrode state distinguished by the electrical discharge state distinguishing circuit (6), in cases where the inter-electrode state is that of electrical shorting (Y1), the inter-electrode current waveform control means supplies a triangular wave current (I) to the electrodes, and in cases where the inter-electrode state is that of normal electrical discharge (Y3), it supplies a trapezoidal wave current (I) to the electrodes. Breakage of the wire electrode (E) can be avoided and machining speed can be improved.

    摘要翻译: 加工用于电火花加工的电源装置。 包括用于区分线电极(E)和工件(W)之间的至少两个电极间状态(包括电短路和正常放电)的放电状态判别电路(6),以及电极间电流波形控制 用于向电极提供三角波和梯形波电流的供给和切换的装置。 根据由放电状态判断电路(6)区别的电极间状态,在电极短路(Y 1)的电极间状态的情况下,电极间电流波形控制装置将三角波电流 (I),并且在电极间状态为正常放电(Y 3)的情况下,向电极提供梯形波电流(I)。 可以避免线电极(E)的破损,并可以提高加工速度。

    Mesoporous silica, process for the preparation of the same, and use thereof
    12.
    发明申请
    Mesoporous silica, process for the preparation of the same, and use thereof 审中-公开
    介孔二氧化硅,其制备方法及其用途

    公开(公告)号:US20050126439A1

    公开(公告)日:2005-06-16

    申请号:US10988783

    申请日:2004-11-15

    IPC分类号: B41M5/52 C01B37/02 C09K3/00

    CPC分类号: B41M5/5218 C01B37/02

    摘要: The invention provides: (1) mesoporous silica characterized by having an average pore diameter in the mesopore region of from 1.5 to 10 nm, a nitrogen adsorption specific surface area determined by the BET method of from 500 to 1400 m2/g and a monolayer adsorption of water at 25° C of 1.7/nm2 or more; (2) a process for synthesizing the mesoporous silica characterized by mixing and reacting active silica with a neutral template and removing the neutral template from the thus formed complex; (3) ink absorbents characterized by containing mesoporous silica; (4) ink absorbent slurries composed of the above-described ink absorbent and a solvent; and (5) recording sheets characterized by containing the above-described ink absorbent.

    摘要翻译: 本发明提供:(1)介孔二氧化硅,其特征在于中孔面积的平均孔径为1.5〜10nm,BET法测定的氮吸附比表面积为500〜1400m 2 / SUP> / g,在25℃下的单层吸附为1.7 / nm 2以上; (2)一种用于合成介孔二氧化硅的方法,其特征在于将活性二氧化硅与中性模板混合和反应,并从由此形成的络合物中除去中性模板; (3)以介孔二氧化硅为特征的油墨吸收剂; (4)由上述吸墨剂和溶剂构成的吸墨浆料; 和(5)记录片材,其特征在于含有上述吸墨剂。

    Hollow steel pile, manufacturing method and pile driving method
    14.
    发明授权
    Hollow steel pile, manufacturing method and pile driving method 失效
    中空钢管,制造方法和桩驱动方法

    公开(公告)号:US5137394A

    公开(公告)日:1992-08-11

    申请号:US803703

    申请日:1991-12-03

    摘要: In the present invention are disclosed a hollow steel pile having an open extremity end with a helical projection composed of a round rod or rectangular rod of its height less than 20 mm arranged at an outer circumference of the pile or at both outer circumference of the pile and inner circumference of the pile at a length part less than ten times of s diameter of the pile, a method for fixing the inner circumferential projection and a pile execution method using such a pile as above. This hollow steel pile may preferably be used as a friction pile and a supporting pile, no vibration and noise are found during its execution of work, a better workalility is assured, a cost of execution of work is less expensive and this process is suitable for performing in a narrow site.

    Wire electric discharge machine with stored discharge energy threshold function
    16.
    发明授权
    Wire electric discharge machine with stored discharge energy threshold function 有权
    线放电机具有放电能量阈值功能

    公开(公告)号:US06781080B1

    公开(公告)日:2004-08-24

    申请号:US10149578

    申请日:2002-06-13

    IPC分类号: B23H704

    CPC分类号: B23H7/04

    摘要: A wire electric discharge machine includes storage means for storing threshold value data found from a relation between the normal electric discharge pulse energy and the electric discharge machining energy setting value corresponding to various electric discharge machining conditions; and a controller for controlling the electric discharge machining energy setting value so that the threshold value data can approach an operation point at which wire breakage occurs.

    摘要翻译: 线放电机包括存储装置,用于存储根据与各种放电加工条件相对应的正常放电脉冲能量与放电加工能量设定值之间的关系发现的阈值数据; 以及控制器,用于控制放电加工能量设定值,使得阈值数据可以接近发生断线的操作点。

    Power supply for wire electric discharge machining
    17.
    发明授权
    Power supply for wire electric discharge machining 失效
    电火花加工电源

    公开(公告)号:US06756557B1

    公开(公告)日:2004-06-29

    申请号:US10168178

    申请日:2002-06-19

    IPC分类号: B23H102

    CPC分类号: B23H7/04 B23H1/022 B23H7/34

    摘要: In a power source apparatus for wire electric discharge machining capable of applying voltages of both of positive and opposite polarities to a gap between a wire electrode (1a) and a workpiece (2), there is provided a controller (14) for applying a first voltage pulse to the gap for predetermined time T1 and then applying a second voltage pulse of a polarity opposite to the first voltage pulse for predetermined time T2a necessary for the gap voltage to become a predetermined voltage lower than or equal to a voltage Va capable of starting an electric discharge after a lapse of predetermined time t set for prevention of breakage of a switch. The apparatus is used in machining for performing at least two machining operations selected from machining in machining liquid, machining in mist and machining in gas. Wire electric discharge machining with high reliability suitable for high-accurate machining can be implemented.

    摘要翻译: 在能够向线电极(1a)和工件(2)之间的间隙施加正极性和极性两者的电压的电火花加工用电源装置中,设置有用于施加第一 电压脉冲到间隙预定时间T1,然后施加与第一电压脉冲极性相反的第二电压脉冲,以使间隙电压成为低于或等于能够启动的电压Va的预定电压 经过设定的预定时间t之后的放电,以防止开关断线。 该装置用于进行从加工液中的加工,雾化加工和气体加工中选择的至少两个加工操作的加工。 可以实现高可靠性的电火花加工,适用于高精度加工。

    Power supply system for applying a voltage of both positive and negative polarities in electric discharge machining
    18.
    发明授权
    Power supply system for applying a voltage of both positive and negative polarities in electric discharge machining 失效
    用于在放电加工中施加正负极性电压的电源系统

    公开(公告)号:US06727455B1

    公开(公告)日:2004-04-27

    申请号:US10048930

    申请日:2002-05-08

    IPC分类号: B23H102

    CPC分类号: B23H1/022

    摘要: In an electric discharge machining power supply system that can apply a voltage of both positive and negative polarities between an electrode and a workpiece, there is provided a controller that applies a first voltage pulse between the electrodes for a predetermined time T1, and then applies a second voltage pulse having a polarity opposite to the first voltage pulse for a predetermined time T2a required until the voltage between the electrodes is lowered to a predetermined voltage that is less than an electric discharge starting voltage Va, after a predetermined time t that is set to prevent breakdown of a switching circuit has lapsed. In electric discharge machining using this electric discharge machining power supply system, the stable machining having high machining quality can be accomplished by causing a remaining voltage between the electrodes to fall down quickly and remove.

    摘要翻译: 在能够在电极和工件之间施加正极性和负极性的电压的放电加工电源系统中,设置有在电极之间施加预定时间T1的第一电压脉冲的控制器,然后施加 第二电压脉冲具有与第一电压脉冲相反极性的预定时间T2a,直到电极之间的电压降低到小于放电起始电压Va的预定电压,在预定时间t被设置为 防止开关电路故障失效。 在使用该放电加工电源系统的放电加工中,通过使电极之间的剩余电压迅速下降并去除,可以实现具有高加工质量的稳定加工。

    Wire electrical discharge machining apparatus
    19.
    发明授权
    Wire electrical discharge machining apparatus 失效
    线放电加工机

    公开(公告)号:US06437277B1

    公开(公告)日:2002-08-20

    申请号:US09581745

    申请日:2000-06-16

    IPC分类号: B23H100

    CPC分类号: B23H7/101 B23H7/105 B23H7/107

    摘要: An upper guide and a lower guide are respectively disposed above and below a workpiece. The upper guide and the lower guide respectively has wire guides for guiding the wire electrode. A pair of electric supply dies are respectively provided in the upper guide and the lower guide and are adapted to come into contact with and energize the wire electrode. An internal nozzle and an external nozzle are provided in at least one of the upper guide and the lower guide. A first piping system supplies the working fluid to the internal nozzle and a second piping system supplies the working fluid to the external nozzle, where the second piping system is independent of the first piping system. The working fluid having lower temperature and higher pressure than the working fluid jetted out and supplied from the external nozzle is jetted out and supplied to the workpiece from the internal nozzle.

    摘要翻译: 上部导向件和下部导向件分别设置在工件的上方和下方。 上引导件和下引导件分别具有用于引导线电极的导线引导件。 一对电源模具分别设置在上引导件和下引导件中,并且适于与电线电极接触并使其通电。 内部喷嘴和外部喷嘴设置在上部引导件和下部引导件中的至少一个中。 第一管道系统将工作流体供应到内部喷嘴,第二管道系统将工作流体供应到外部喷嘴,其中第二管道系统独立于第一管道系统。 具有比从外部喷嘴喷出并供给的工作流体更低的温度和更高的压力的工作流体被喷出并从内部喷嘴供给到工件。