Double action die set for closed forging
    2.
    发明授权
    Double action die set for closed forging 失效
    双作用模具用于封闭锻造

    公开(公告)号:US4977773A

    公开(公告)日:1990-12-18

    申请号:US403489

    申请日:1989-09-06

    CPC分类号: B21J9/20 B21J5/02 B21J9/12

    摘要: A double action die set for closed forging to be equipped in a reciprocating press consisting of a stationary base and a slide. Each die is equipped with one set of a metal mold and a punch. A stationary side die is fixedly secured to the stationary base, while a movable side die is fixedly secured to the slide. Each one of the stationary side die and the movable side die comprises therein a metal mold supporting outer piston of hollow shape, a punch supporting inner piston slidably engaged with a hollow space in the outer piston, and a common oil chamber for supporting the outer piston and the inner piston with a same hydraulic pressure.According to this invention such advantages as to reduce the height of the die set and to move the pressurized oil only within the same oil chambers can be obtained.

    摘要翻译: 一种用于封闭锻造的双作用模具组装在由固定基座和滑块组成的往复式压力机中。 每个模具都配有一套金属模具和冲头。 固定侧模具固定地固定到固定基座,而可移动侧模具固定地固定到滑块。 固定侧模具和可动侧模具中的每一个包括支撑中空形状的外活塞的金属模具,与外活塞中的中空空间可滑动地接合的冲头支撑内活塞,以及用于支撑外活塞的公共油室 和具有相同液压压力的内活塞。 根据本发明,可以获得这样的优点,即减小模具的高度并且仅在相同的油室内移动加压油。

    Surface cutting method and apparatus for hot-rolled steel products
    4.
    发明授权
    Surface cutting method and apparatus for hot-rolled steel products 失效
    热轧钢产品表面切割方法及装置

    公开(公告)号:US5951220A

    公开(公告)日:1999-09-14

    申请号:US809554

    申请日:1997-03-21

    摘要: A surface cutting method for a hot-rolled steel product that includes a joint portion having a predetermined breaking strength includes a step of clamping the steel product between a pair of milling cutters that are arranged on top and bottom surfaces of the steel product, while the steel product is conveyed in a longitudinal running direction. The top and bottom surfaces of the steel product are subjected to cutting by rotating the milling cutters in a rotating direction. A cutting resistance applied to the milling cutters during the cutting is determined based on parameters including type of steel, width, thickness, surface temperature and conveying speed of the steel product, as well as circumferential speed and cutting depth of the milling cutters. The cutting resistance is controlled by adjusting the cutting depth of the milling cutters by actuators connected to the milling cutters, such that a tension lower than the breaking strength of the joint portion is applied to the steel product by the cutting resistance, so as to prevent breakage of the joint portion during the cutting.

    摘要翻译: PCT No.PCT / JP96 / 02058 Sec。 371日期1997年3月21日 102(e)1997年3月21日PCT PCT 1996年7月23日PCT公布。 公开号WO97 / 03778 日本特开1997年2月6日,包括具有预定断裂强度的接合部的热轧钢制品的表面切割方法包括将钢制品夹在一对铣刀之间的步骤,该对铣刀布置在 钢产品,而钢产品沿纵向运行方向输送。 通过沿旋转方向旋转铣刀对钢制品的顶面和底面进行切割。 根据钢种的种类,宽度,厚度,表面温度和钢材输送速度以及铣削刀具的圆周速度和切削深度等参数,决定切削时施加在切削刃上的切削阻力。 通过调节与铣刀相连的致动器的切削深度来控制切削阻力,使得通过切削阻力将低于接头部分的断裂强度的张力施加到钢制品上,以防止 切割期间接头部分断裂。

    Device for driving multi-drum coiler or un-coiler
    7.
    发明授权
    Device for driving multi-drum coiler or un-coiler 失效
    用于驱动多鼓卷取机或脱卷机的装置

    公开(公告)号:US4663986A

    公开(公告)日:1987-05-12

    申请号:US623764

    申请日:1984-06-20

    摘要: A device for driving two winding drum shafts which are rotatably supported by the body of a coiler or un-coiler that acts to wind or unwind rolled material. A casing constituting a ring gear frame is disposed at the center of the body, which is revolved in a circle. Two ring gears each of which has external teeth and internal teeth are rotatably held to the casing. Two pinions mate with the internal teeth of these two ring gears. Two motors are provided to drive their respective drum shafts. When rotatory motion produced by each of these motors is transmitted to the drum shafts via the ring gear mechanisms, the mating engagement of the pinions with the ring gears results in a high reduction gear ratio. Another motor is also provided to revolve the body of the machine in a circle.

    摘要翻译: 用于驱动两个卷绕鼓轴的装置,其由用于卷绕或展开轧制材料的卷取机或脱卷机的主体可旋转地支撑。 构成环形齿轮架的壳体设置在以圆圈为中心旋转的主体的中心。 两个齿圈中的每一个具有外齿和内齿可旋转地保持在壳体上。 两个小齿轮与这两个齿圈的内齿配合。 提供两个电动机来驱动它们各自的鼓轴。 当由这些电动机产生的旋转运动通过齿圈机构传递到鼓轴时,小齿轮与齿圈的配合接合导致高的减速比。 还提供另一个电动机以使机器的机身旋转一圈。