Pulsed arc welding machine
    3.
    发明授权
    Pulsed arc welding machine 失效
    脉冲电弧焊机

    公开(公告)号:US5017757A

    公开(公告)日:1991-05-21

    申请号:US502774

    申请日:1990-04-02

    IPC分类号: B23K9/09 B23K9/10

    CPC分类号: B23K9/1056 B23K9/091

    摘要: In a pulse arc welding machine which is adapted to feed at a constant speed a welding wire as a waste electrode to turn the molten lump of the wire tip end into a spray state with a pulse current so as to effect a welding operation, the risetime and falltime of the pulse current influence the bead outer appearance, the gas shielding property and welding function and are varied independently of the other parameters controlled by the machine in accordance with the material quality of the welding wire, the wire diameter, and the wire feeding speed.

    摘要翻译: 在适于以恒定速度供给作为废电极的焊丝的脉冲电弧焊接机中,以将电极尖端的熔融状态以脉冲电流转变为喷射状态以进行焊接作业,上升时间 并且脉冲电流的下降时间影响焊道外观,气体屏蔽性和焊接功能,并且根据焊丝的材料质量,焊丝直径和焊丝进给而独立于由机器控制的其它参数而变化 速度。

    Arc welding and arc plasma cutting machines having improved DC
high-voltage generator
    4.
    发明授权
    Arc welding and arc plasma cutting machines having improved DC high-voltage generator 失效
    电弧焊和电弧等离子切割机具有改进的直流高压发生器

    公开(公告)号:US5852278A

    公开(公告)日:1998-12-22

    申请号:US773853

    申请日:1996-12-27

    IPC分类号: B23K9/10 B23K10/00 B23K9/067

    CPC分类号: B23K10/006 B23K9/1043

    摘要: An arc welding and arc plasma cutting machine having a dc high-voltage generator is provided. The dc high-voltage generator includes a first dc power source, a second dc power source, an one-way rectifier, and a voltage clamping circuit. The first dc power source applies a dc voltage through the one-way rectifier across an electrode and a work piece. The second dc power source is connected across the first dc power source and superimposes a dc voltage on the power produced by the first dc power source for developing an arc discharge across the electrode and the work piece. The voltage clamping circuit connected in parallel to the one-way rectifier to restrict a high-voltage applied to the one-way rectifier below a given level for protecting the one-way rectifier from breakage due to application of the high-voltage.

    摘要翻译: 提供具有直流高压发生器的电弧焊和电弧等离子切割机。 直流高压发生器包括第一直流电源,第二直流电源,单向整流器和电压钳位电路。 第一直流电源通过单向整流器跨越电极和工件施加直流电压。 第二直流电源连接在第一直流电源上,并将直流电压叠加在由第一直流电源产生的功率上,用于在电极和工件上形成电弧放电。 钳位电路并联连接到单向整流器,以将施加到单向整流器的高压限制在给定电平以下,以保护单向整流器由于施加高电压而损坏。

    Reduced-spatter pulse arc welding machine for use with a consumable
electrode
    6.
    发明授权
    Reduced-spatter pulse arc welding machine for use with a consumable electrode 失效
    用于消耗电极的减少脉冲电弧焊机

    公开(公告)号:US4889969A

    公开(公告)日:1989-12-26

    申请号:US185459

    申请日:1988-04-25

    IPC分类号: B23K9/09

    CPC分类号: B23K9/091

    摘要: A consumable electrode arc welding machine in which if a short circuit does not lasts beyond a predetermined first time limit, pulse current and base current outputs for the arc are alternated with each other in a basic pulse period. If a short circuit lasts beyond the first time limit, the welding output during the subsequent short circuit period is subjected to constant-current control along a predetermined first trace, and a second time limit begins from the start of arc regeneration. The welding output is controlled to be different from both the pulse current and base current during the second time limit to restore the operation of the welding within the basic pulse period.

    Arc welding power apparatus having plural selectable electrode feed
quantity settings
    7.
    发明授权
    Arc welding power apparatus having plural selectable electrode feed quantity settings 失效
    具有多个可选电极供给量设定的电弧焊电力装置

    公开(公告)号:US5168144A

    公开(公告)日:1992-12-01

    申请号:US722143

    申请日:1991-06-27

    IPC分类号: B23K9/067 B23K9/10 B23K9/12

    CPC分类号: B23K9/125 B23K9/067

    摘要: A power apparatus is used in an arc welding device to control a weld operation during a welding start time. An improved arc start performance is obtained in both a cooled condition of the welding wire tip end portion and a red heated condition thereof. A feed quantity of the consumption electrode during the weld start time is changed depending on whether the welding wire tip end portion is cooled or red heated from a prior arc welding operation.

    摘要翻译: 在电弧焊接装置中使用动力装置来控制焊接开始时间期间的焊接操作。 在焊丝前端部的冷却状态和红色加热状态两者中都能获得改善的电弧启动性能。 焊接开始时间期间的消耗电极的供给量根据焊丝前端部是否从现有的电弧焊接操作冷却或红色加热而变化。

    Vehicle seat with rotatable backrest
    8.
    发明授权
    Vehicle seat with rotatable backrest 失效
    带可旋转靠背的车座

    公开(公告)号:US4822093A

    公开(公告)日:1989-04-18

    申请号:US66540

    申请日:1987-06-26

    摘要: A vehicle seat comprising a horizontal seat cushion, a support shaft projecting upward from the seat cushion, and a rotatable backrest secured on the support shaft. The vehicle seat further comprises a mechanism for regulating the rotational movement of the backrest, which can be controlled in response to a detected driving state of the vehicle. The backrest may be immovably retained at a normal position relative to the seat cushion during the usual forward driving, and allowed to rotate to a suitable position during a stop, reverse, or cornering of the vehicle.

    摘要翻译: 一种车辆座椅,包括水平座垫,从座垫向上突出的支撑轴和固定在支撑轴上的可旋转靠背。 车辆座椅还包括用于调节靠背的旋转运动的机构,其可以响应于车辆的检测到的驾驶状态而被控制。 在通常的向前驾驶期间,靠背可以相对于座垫不可移动地保持在正常位置,并且允许在车辆的停止,反转或转弯期间旋转到合适的位置。

    Decorative paper/embossing plate in which uneven structure of vessel
perforation is reproduced, and preparing method and preparing apparatus
therefor
    10.
    发明授权
    Decorative paper/embossing plate in which uneven structure of vessel perforation is reproduced, and preparing method and preparing apparatus therefor 失效
    复制容器穿孔不均匀结构的装饰纸/压花板及其制备方法和制备装置

    公开(公告)号:US5792545A

    公开(公告)日:1998-08-11

    申请号:US532774

    申请日:1995-11-30

    摘要: On a surface of a decorative paper, vessel perforation of natural wood is reproduced by an offset groove (100) consisting of three steps of embossing grooves (110, 120, 130) of the nesting structure. Respective grooves are such that they are deeper according as positions thereof shift to the internal, and are disposed in a manner to be eccentric in a length direction. Within the groove, a convex bank portion (140) in which the bottom surface is linearly protruded is formed. An embossing plate for processing such an offset groove is prepared on the basis of a vessel cross section pattern inputted by using natural wood. The inputted plane vessel cross section pattern is replaced by an approximate elliptical figure. A three-dimensional virtual vessel perforation model is determined by calculation using the elliptical figure. Equi-depth lines for set predetermined depths are extracted from the three-dimensional model and contour figures of embossing grooves (110, 120, 130) are obtained. Patterning masks using respective equi-depth lines as contour lines are respectively prepared to repeatedly carry out patterning processing with respect to the plate material by successively using respective masks in order from shallower depths to thereby prepare an embossing plate.

    摘要翻译: PCT No.PCT / JP95 / 00139 Sec。 371日期:1995年11月30日 102(e)1995年11月30日日期PCT 1995年2月3日提交PCT公布。 出版物WO95 / 21060 日期:1995年8月10日在装饰纸的表面上,通过由嵌套结构的压花槽(110,120,130)的三个步骤构成的偏移槽(100)再现天然木材的容器穿孔。 相应的凹槽使得它们随着其位置移动到内部而更深,并且以沿长度方向偏心的方式设置。 在凹槽内形成有底部表面线性突出的凸形部分(140)。 基于通过使用天然木材输入的容器横截面图案来制备用于处理这种偏移凹槽的压花板。 输入的平面血管横截面图案由近似的椭圆形图形代替。 通过使用椭圆图的计算确定三维虚拟血管穿孔模型。 从三维模型中提取用于设定的预定深度的等深线,并且获得压花槽(110,120,130)的轮廓图。 分别准备使用相应的等深线作为轮廓线的图形掩模,以通过从较浅的深度依次使用相应的掩模重复地执行相对于板材的图案化处理,从而制备压花板。