公开(公告)号：US5159168A

公开(公告)日：1992-10-27

申请号：US667021

申请日：1991-03-07

申请人： Niklaus Portmann ,  Alfonso D'Aniello ,  Peter Taiana ,  Werner Urech

发明人： Niklaus Portmann ,  Alfonso D'Aniello ,  Peter Taiana ,  Werner Urech

IPC分类号： B23K11/06 ,  B23K11/30 ,  H01R39/00

CPC分类号： B23K11/3045

摘要： A roller head (10) for a resistance seam welding machine has an internally located sliding contact current transmission device (24) between stator 12) and rotor (14) and is composed of a pair of circular ring-shaped discs (26, 26') which extend radially between rotor and stator, are fastened to the rotor on their outer circumferences, carry axial sliding contact rings (32,32') on their inner circumferences, and are flexible designed in their intermediate parts (28,28') between inner and outer circumferences. These sliding contact discs (26,26') are composed of a copper mesh, to which the axial sliding contact rings (32,32') are fastened. Thin-walled metallic diaphragms can also be used instead of the copper mesh. The roller head (10) can transmit high welding currents. As a result of the flexible design of the sliding contact discs (26,26') the contact presssure, which is created by a stack of plate springs (40), remains constant even with external mechanical influences.

摘要翻译： 用于电阻缝焊机的辊头（10）在定子12）和转子（14）之间具有内部定位的滑动接触电流传输装置（24），并且由一对圆形环形盘（26,26'）组成， ）在转子和定子之间径向延伸，在其外周上紧固到转子上，在它们的内周上承载轴向滑动接触环（32,32'），并且在其中间部分（28,28'）之间灵活地设计在 内外圆周。 这些滑动接触盘（26,26'）由铜网构成，轴向滑动接触环（32,32'）紧固在该铜网上。 也可以使用薄壁金属隔膜代替铜网。 辊头（10）可以传递高焊接电流。 由于滑动接触盘（26,26'）的灵活设计，由一堆板簧（40）产生的接触压力即使在外部机械影响的情况下也保持恒定。

公开(公告)号：US4795295A

公开(公告)日：1989-01-03

申请号：US110533

申请日：1987-10-16

申请人： Paul Opprecht ,  Werner Urech

发明人： Paul Opprecht ,  Werner Urech

IPC分类号： B21D51/44 ,  B21D51/38 ,  B65D17/34 ,  B65D17/36 ,  B65D17/38 ,  B65D17/40 ,  B21D51/26

CPC分类号： B65D17/20 ,  B21D51/383 ,  B65D17/22

摘要： A rupturable can member (10) of sheet metal has a pair of scorings (16) which define a tearing strip (18) laterally. Welded onto the tearing strip (18) is a tongue (20) which has a thickened portion (24) at its welded-on end (22). This thickened portion is formed by a margin folded back towards the other free end (26) of the tongue (20).

摘要翻译： 金属板的破裂罐构件（10）具有一对横向限定撕裂带（18）的刻痕（16）。 焊接在撕裂带（18）上的是在其焊接端（22）处具有加厚部分（24）的舌部（20）。 该加厚部分由朝向舌片（20）的另一自由端（26）折回的边缘形成。

公开(公告)号：US4712960A

公开(公告)日：1987-12-15

申请号：US885019

申请日：1986-07-14

申请人： Paul Opprecht ,  Werner Urech ,  Jurg Opprecht

发明人： Paul Opprecht ,  Werner Urech ,  Jurg Opprecht

IPC分类号： B21D51/44 ,  B21D51/26 ,  B21D51/38 ,  B23K11/00 ,  B23K31/00 ,  B65D17/36 ,  B65D17/38 ,  B65D17/40 ,  B21D51/28

CPC分类号： B21D51/2676 ,  B21D51/386 ,  B23K11/0033 ,  B65D17/168 ,  B65D17/22

摘要： A can body is rolled from a sheet-metal blank (28) and has outer and inner longitudinal edges (12 and 14 respectively) which are welded to one another in an overlapping manner. Extending round the can body transversely to the longitudinal edges (12, 14) are two circumferential scorings (16) which define a tearing strip (18) laterally. The tearing strip (18) is extended by a tongue (20) which is welded onto the outer longitudinal edge (12) and which can be gripped by a key and rolled up. In a welding zone (42) which is adjacent to a starting scoring (30), the tearing strip (18) is stiffened by the welded-on tongue (20) in such a manner that it tears away from the can body reliably along the circumferential scorings (16) during the rolling up of the tongue (20).

公开(公告)号：US4591687A

公开(公告)日：1986-05-27

申请号：US469033

申请日：1983-02-23

申请人： Werner Urech

发明人： Werner Urech

IPC分类号： B23K11/18 ,  B23K11/30 ,  B23K35/02 ,  B23K11/00

CPC分类号： B23K35/0205 ,  B23K11/3009 ,  Y10T428/12347

摘要： Spot- and projection-welding of aluminum sheets has always been connected with difficulties mainly because of the surface layers of aluminum oxide, and even by pickling, these difficulties could be only partly eliminated. The main difficulties have always been insufficient electrode life times, the unsatisfactory quality of the weld and especially the unsolved problem of achieving good quality welding and long electrode-life when using un-pretreated aluminum sheets. The problem has been solved in principle by using electrodes having profiled contact-surfaces, by means of which the layer of oxide is broken during pre-pressing and a direct contact between the electrode and unoxidized material of the workpiece is provided, the contact-resistance of which is lower than the portion of the overall resistance of the point of weld formed by the metal of the aluminum sheets to be welded together. In an appropriate welding machine, the means for switching-on the welding current are controlled in such a manner that the welding current is switched on only after a sufficiently large contact area and therewith a sufficiently low contact-resistance of this contact has been reached.

摘要翻译： 铝板的点焊和投影焊接一直与困难有关，主要是因为氧化铝的表面层，甚至酸洗，这些困难只能部分消除。 主要的困难一直是电极寿命不足，焊接质量不合格，特别是使用未经预处理的铝片时焊接质量好，电极寿命长的未解决问题。 原理上已经通过使用具有异型接触面的电极来解决该问题，通过该电极，在预压期间氧化层破裂，并且提供了工件的电极和未氧化材料之间的直接接触，接触电阻 其低于由待焊接在一起的铝板的金属形成的焊接点的整体电阻的部分。 在适当的焊接机中，接通焊接电流的装置以如下方式进行控制，使焊接电流只有在足够大的接触面积之后才被接通，从而达到该接点的足够低的接触电阻。