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    • 35. 发明公开
    • HYDRAULIC FAST FORGING UNIT
    • 液压快速锻造装置
    • EP3290718A1
    • 2018-03-07
    • EP17748373.2
    • 2017-01-12
    • Zhongjuxin Ocean Engineering Equipment Co., Ltd
    • The designation of the inventor has not yet been filed
    • F15B1/02F15B1/033B21J9/12
    • B30B15/161B30B15/163B30B15/22
    • The present invention relates to a high-speed hydraulic forging press. The high-speed hydraulic forging press includes a forging hammer, a movable beam, a main hydraulic cylinder, a single-rod elevation hydraulic cylinder, a plurality of main hydraulic pumps, a high-pressure energy accumulator, an intermediate-pressure energy accumulator, a oil tank, a programmable logic controller, and a valve-regulated system that is disposed on a pipe. During a backhaul of the forging hammer, hydraulic oil in the single-rod elevation hydraulic cylinder is supplied by the main hydraulic pumps, and trapped oil in the main hydraulic cylinder is discharged into the intermediate-pressure energy accumulator. During a fast drop in an idle stroke of the forging hammer, hydraulic oil in the main hydraulic cylinder is independently supplied by the intermediate-pressure energy accumulator, trapped oil in the single-rod elevation hydraulic cylinder is discharged into the oil tank, and the main hydraulic pumps supply oil to the high-pressure energy accumulator. During rolling of the forging hammer, hydraulic oil in the main hydraulic cylinder is supplied by the main hydraulic pumps and the high-pressure energy accumulator at the same time, and if a pressure in the main hydraulic cylinder reaches a first specified value, the high-pressure energy accumulator stops supplying oil, and the hydraulic oil in the main hydraulic cylinder is supplied by the main hydraulic pumps. Compared with the prior art, the present invention has advantages of a simple structure, low equipment investment, and high energy utilization.
    • 高速液压锻压机技术领域本发明涉及一种高速液压锻压机。 该高速液压锻压机包括锻锤,活动梁,主液压缸,单杆升降液压缸,多个主液压泵,高压蓄能器,中压蓄能器, 油罐,可编程逻辑控制器以及设置在管道上的阀门调节系统。 在锻锤回程中,单杆升降液压缸内的液压油由主液压泵供应,主液压缸内的积油排入中压蓄能器。 在锻锤的空行程快速下降过程中,主液压缸内的液压油由中压蓄能器独立供油,单杆升降液压缸内的截留油排入油箱, 主液压泵向高压蓄能器供油。 在锻锤的滚动过程中,主液压缸内的液压油同时由主液压泵和高压储能器供应,如果主液压缸内的压力达到第一规定值,则高压 压力储能器停止供油,主液压缸中的液压油由主液压泵供应。 与现有技术相比,本发明结构简单,设备投资少,能源利用率高。
    • 37. 发明公开
    • HYDRAULIC FORGING PRESS DEVICE AND METHOD FOR CONTROLLING SAME
    • EP3216539A4
    • 2017-11-22
    • EP15856208
    • 2015-10-29
    • JAPAN AEROFORGE LTD
    • KUWANO HIROAKIISHIGAI SHINYA
    • B21J9/12B30B1/34B30B15/22
    • B21J9/12B30B1/34B30B15/163B30B15/22
    • Provided herein are a hydraulic forging press machine and a method for controlling the same, whereby surging of the forging load or dead zones where the forging speed goes to zero can be suppressed, and forging can be performed with high precision throughout a wider range than in the prior art from a low load to a high load. The present invention is characterized by including a plurality of pressure cylinders (pressure cylinder group (2)), the pressure cylinder group (2) having a main pressure cylinder (21) configured so that working fluid can always be supplied thereto during forging, and a plurality of secondary pressure cylinders (22-25) configured so that supplying and stopping of the supply of working fluid thereto can be switched in response to the forging load, head-side hydraulic chambers (22h-25h) of the secondary pressure cylinders (22-25) being connected to a head-side hydraulic chamber (21h) of the main pressure cylinder (21) via electromagnetic switching valves (2a), and the present invention being configured so that only the main pressure cylinder (21) is used until the forging load exceeds a predetermined set load, and the number of secondary pressure cylinders (22-25) used is sequentially increased as the forging load increases after the forging load exceeds the set load.
    • 38. 发明公开
    • PROCESS FOR UPSET FORGING OF DRILL PIPE
    • VERFAHREN ZUM ANSTAUCHEN EINESBOHRGESTÄNGESIM GESENK
    • EP3055086A1
    • 2016-08-17
    • EP14851894.7
    • 2014-09-30
    • Hunting Energy Services Inc.
    • KIRBY, Klane EdwardADKINS, Gregory Lynn
    • B21D41/00B21J5/08B21J9/12
    • B21J5/08B21D41/00B21J9/08B21K21/12E21B7/046E21B17/042
    • Shown is a method for manufacturing horizontal directional drilling pipe having internally and externally upset pipe ends. The forging is done by heating the green tube ends and applying pressure using a closed die hydraulic forging press to form the upsets. One end of a steel tube is worked by upsetting and pressing to form an external upset portion having an outer taper being shaped by upset forging. That portion is then pressed by an internal upset die so as to displace the outer taper to an internal upset portion having an inner taper. Internal upset forging is then carried out by an internal upset die to produce the finished part. The process allows the manufacturer to produce a thicker upset horizontal directional drilling pipe, where the ratio of the outside diameter to the inside diameter of the upset can be on the order of 3.5, or even greater.
    • 示出了具有内部和外部不连接管端的水平定向钻管的方法。 锻造通过加热绿色管端并使用封闭模具液压锻压机施加压力来形成混乱。 通过镦锻和压制来加工钢管的一端,以形成具有通过锻造锻造成形的外锥形的外部镦锻部分。 然后将该部分由内部镦锻模具压制,以将外锥度移位到具有内锥度的内部镦锻部分。 然后通过内部镦锻模具进行内部镦锻,以生产成品。 该过程允许制造商生产较厚的不平直的水平定向钻井管,其中外径与镦锻的内径之比可以在3.5或甚至更高的数量级上。