公开(公告)号：US3902658A

公开(公告)日：1975-09-02

申请号：US25882372

申请日：1972-06-01

Applicant: ASEA AB

Inventor： MADSEN KRISTIAN DAHL

IPC: B04B5/08 ,  B04B15/02

CPC classification number: B04B5/08 ,  Y10S423/07 ,  Y10S494/90

Abstract: An ultra centrifuge cascade has centrifuge cascade groups mounted between horizontal upper and lower plates and enclosed by a common containment vessel for all of the centrifuges, the latter being positioned vertically and parallel to each other between the plates, all piping being also enclosed by the common or single containment vessel.

Abstract translation: 超级离心机级联具有安装在水平上下板之间的离心机级联组件，并由用于所有离心机的公共容纳容器封闭，后者在板之间垂直并且彼此平行，所有管道也被公共 或单个容器。

公开(公告)号：US3900695A

公开(公告)日：1975-08-19

申请号：US47060474

申请日：1974-05-16

Applicant: ASEA AB

Inventor： ANDERSSON CONNY ,  HANAS BERTIL ,  KORSELL TORSTEN ,  NILSSON JAN

IPC: H01F27/28 ,  B21C23/00 ,  B21C23/22 ,  H01B1/02 ,  H01F5/00 ,  H01F27/08 ,  H01F27/16 ,  H02K3/22 ,  H05B6/36 ,  H05B5/12

CPC classification number: H01F5/00 ,  B21C23/007 ,  B21C23/22 ,  H01B1/026 ,  H05B6/367

Abstract: An electric induction furnace has an inductor coil formed from a tubular conductor through which cooling water may be flowed, and which is made with an inner layer of corrosion-resisting copper or copper alloy and an outer layer of aluminum or aluminum alloy and which, although oxidizable in air, forms an electrically nonconductive oxide layer eliminating the risk of short-circuiting between the coil convolutions. Material costs are reduced by making the aluminum layer considerably thicker than the copper layer. The two layers are integrated under high mechanical pressure during the manufacture of the conductor, the electrical resistance between the interfaces of the two layers being negligible.

公开(公告)号：US3890834A

公开(公告)日：1975-06-24

申请号：US46173074

申请日：1974-04-17

Applicant: ASEA AB

Inventor： HENZE MICHAEL

IPC: B21B38/02 ,  G01L5/04 ,  G01L5/10

CPC classification number: G01L5/108 ,  B21B38/02 ,  G01L5/045

Abstract: An improved method of measuring physical quantities such as pressure, tensile force and so on in a material, such as the striplike material in a rolling mill, using a plurality of measuring devices side-by-side, each covering a zone, which devices provide an electrical output proportional to the pressure (strip stress) thereon, and in doing so assume that the whole of the sensor (zone) is covered by the strip being sensed, in which means are provided to correct the outputs of those sensors on the end which are not completely covered by the strip. Means are provided for determining the percentage of coverage of the sensors on the ends, and for multiplying the output of those sensors by a correction factor in order to obtain a corrected output which accurately reflects the physical quantity being measured.

Abstract translation: 一种改进的方法，用于测量材料中诸如压力，拉力等物理量的方法，所述材料例如是轧机中的条带状材料，其使用多个测量装置并排，每个覆盖区域，该装置提供 与其上的压力（条带应力）成比例的电输出，并且在这样做时，假设整个传感器（区域）被被感测的条带覆盖，其中提供了用于校正这些传感器的端部的输出的装置 这些不完全被条带覆盖。 提供了用于确定端部上的传感器的覆盖百分比的装置，并且用于将这些传感器的输出乘以校正因子，以便获得准确地反映所测量的物理量的校正输出。

公开(公告)号：US3886775A

公开(公告)日：1975-06-03

申请号：US45338874

申请日：1974-03-21

Applicant: ASEA AB

Inventor： KORSELL TORSTEN ,  LARKER HANS ,  LUNDBLAD ERIK ,  NILSSON JAN

IPC: B21C23/22 ,  B21C23/00 ,  B21C25/02

CPC classification number: B21C25/02 ,  B21C23/007

Abstract: A die for manufacturing rods of rectangular cross-section from a core of aluminium or an aluminium alloy and a casing of copper or a copper alloy by hydrostatic extrusion of a compound billet of such materials has a cup-shaped bottom which may be spherical, ellipsoidal, hyperbolic or parabolic in cross-section and a conical upper part. The bottom parts of the generatrices in axial section through the die form an angle which is between 120* and 180*, preferably between 150* and 170*, and a conical upper part has a cone angle between 40* and 120*.

公开(公告)号：US3883790A

公开(公告)日：1975-05-13

申请号：US44087374

申请日：1974-02-08

Applicant: ASEA AB

Inventor： HAMMARLUND BERTIL ,  JUHLIN LARS-ERIK

IPC: H02H7/12 ,  H02H7/26 ,  H02J1/00 ,  H02J3/36 ,  H02J3/46 ,  H02M7/162 ,  H02M7/757

CPC classification number: H02H7/268 ,  H02J3/36 ,  H02M7/1626 ,  H02M7/7575 ,  Y02E60/60

Abstract: A power transmission for high voltage direct current includes a direct current line and converter stations connected to the direct current line, with alternating current networks each connected to one of the converter stations. Each converter station includes at least two converters connected in parallel and is provided with a current control system to set the total current of the station as well as the current in the individual converters in accordance with a current order. Each station is provided with an arrangement for sensing the current and/or voltage on the d.c. line, which is connected to the current control system of the station and which reduces the current order set in the station in response to sudden interference in current and/or voltage. The station operating as an inverter is provided with an arrangement responsive to the disappearance of the current in one of the inverters of the station to limit the internal direct voltage of the other inverter to approximately zero.

Abstract translation: 用于高压直流的电力传输包括直流线路和连接到直流线路的转换器站，各交流电网络连接到转换站之一。 每个转换器站包括并联连接的至少两个转换器，并且设置有电流控制系统，以根据当前顺序来设置站的总电流以及各个转换器中的电流。 每个站都设有用于感测直流电流和/或电压的装置。 线路，其连接到站的当前控制系统，并且响应于电流和/或电压中的突然干扰而减小站中设置的当前顺序。 作为逆变器工作的站设置有响应于站中的一个逆变器中的电流消失的装置，以将另一个逆变器的内部直流电压限制为近似为零。

公开(公告)号：US3865387A

公开(公告)日：1975-02-11

申请号：US46240174

申请日：1974-04-19

Applicant: ASEA AB

Inventor： LARKER HANS ,  NILSSON JAN

IPC: F16J15/28 ,  F16J15/56

CPC classification number: F16J15/56

Abstract: In a high pressure pressure press which has a seal holder, a high pressure seal is provided between the wall of a high pressure cylinder and a die or an axially movable plunger projecting into the cylinder, which is composed of two sealing rings, one of which has an outer surface abutting the cylindrical wall and an end surface abutting the seal holder, while the other ring has a cylindrical surface abutting the plunger and a surface abutting the seal holder. The portion of the outer surface of the first ring abutting the cylindrical wall which is nearest to the seal holder is provided with generally longitudinally extending draining channels therein. The sealing ring which makes contact with the inner cylindrical wall of the chamber is prestressed and has a normal outer diameter which is more than 0.1 per cent greater than that of the high pressure cylinder, thus making contact with the cylindrical wall with a force dependent on the prestressing.

Abstract translation: 在具有密封保持器的高压压力机中，在高压缸壁与模具之间设有高压密封件，或者由两个密封环构成的两个密封环，该两个密封环由两个密封环组成， 具有邻接圆筒壁的外表面和与密封保持件邻接的端面，而另一个环具有邻接柱塞的圆柱形表面和与密封保持器邻接的表面。 邻近密封保持器的圆柱形壁的第一环的外表面的部分在其中设置有大致纵向延伸的排出通道。

公开(公告)号：US3857083A

公开(公告)日：1974-12-24

申请号：US43661974

申请日：1974-01-25

Applicant: ASEA AB

Inventor： LUNDSTROM H

IPC: H02H7/12 ,  H02H7/14

CPC classification number: H02H7/1206

Abstract: In convertor equipment which includes a plurality of convertor bridges connected in parallel on the AC side, the AC terminals of all the convertors are connected to the same AC source. Each convertor bridge is an unsymmetrical semi-controlled bridge, composed of two controllable and two non-controllable rectifiers. The bridges have their DC terminals connected to a common load, such as an armature of a DC motor. The AC terminals of the bridges are connected to the secondary winding of a transformer, the primary winding of which is connected to a feeding AC network. Fuses for protecting the rectifiers against overcurrents are provided in the AC leads which are connected to the connecting points between the two branches of each bridge which contains non-controllable rectifiers.

Abstract translation: 在包括在AC侧并联连接的多个转换器桥的转换器设备中，所有转换器的AC端子连接到相同的AC电源。 每个转换桥是一个不对称的半控桥，由两个可控和两个不可控整流器组成。 桥接器的直流端子连接到公共负载，例如直流电动机的电枢。 桥的AC端子连接到变压器的次级绕组，其一次绕组连接到馈电AC网络。 在连接到每个桥的两个分支之间的连接点的AC引线中提供了用于保护整流器免于过电流的保险丝，其中包含不可控整流器。

公开(公告)号：US3851090A

公开(公告)日：1974-11-26

申请号：US34236873

申请日：1973-03-19

Applicant: ASEA AB

Inventor： FOLGERO K ,  FREDRICKSON B

IPC: F27D11/06 ,  B22D41/01 ,  F27B3/08 ,  F27D3/18 ,  H05B6/20 ,  H05B5/00 ,  F27D3/14

CPC classification number: H05B6/20 ,  B22D41/01 ,  F27D3/18

Abstract: Apparatus for melting, holding and tapping metals or metal alloys, in which solid material is melted down in a channel-type induction furnace, the melt then being transferred to a second channel-type induction furnace to be kept hot, possibly overheated and stored, characterized in that the melting furnace is connected to the second furnace by way of a feeding channel and is located at a higher level than the second furnace and that the second furnace is in the form of a presssure furnace for pressure tapping through a spout.

Abstract translation: 用于熔化，保持和攻丝金属或金属合金的装置，其中固体材料在通道型感应炉中熔化，然后将熔体转移到第二通道型感应炉中以保持热，可能过热， 其特征在于，所述熔炉通过进料通道连接到所述第二炉，并且位于比所述第二炉更高的高度，并且所述第二炉为压力炉的形式，用于通过喷口 。

公开(公告)号：US3841128A

公开(公告)日：1974-10-15

申请号：US36710673

申请日：1973-06-05

Applicant: ASEA AB

Inventor： NILSSON J

IPC: B21C23/00 ,  B21C23/21 ,  B21C25/04

CPC classification number: B21C23/217 ,  B21C23/007

Abstract: A press for hydrostatic extrusion of tubes includes a high pressure cylinder axially displaceable in a press stand with a die insertable into the cylinder and a pressure generating punch insertable into the cylinder to generate the pressure for extrusion. A mandrel is carried by a rod which passes through the pressure generating punch. Seals are provided between the mandrel and the pressure generating punch and between the pressure generating punch and the pressure cylinder. These seals are so located that during the actual extrusion they are arranged in the same transverse plane.

Abstract translation: 用于静液压挤出管的压力机包括可在压力机架中轴向移动的高压气缸，其中可插入气缸的模具和可插入气缸中的压力产生冲头以产生用于挤压的压力。 心轴由穿过压力产生冲头的杆承载。 密封件设置在心轴和压力产生冲头之间以及压力产生冲头和压力缸之间。 这些密封件位于这样的位置，使得在实际的挤出过程中它们被布置在相同的横向平面内。

公开(公告)号：US3838319A

公开(公告)日：1974-09-24

申请号：US41487973

申请日：1973-11-12

Applicant: ASEA AB

Inventor： HAMMARLUND G ,  JOHANSSON A

IPC: H03K17/292 ,  H01H47/18

CPC classification number: H03K17/292

Abstract: An arrangement for achieving a short recovery time in a time lag relay, composed of static components in which the delay is determined by the charging time of a capacitor, includes two programmable unijunction transistors with the anode-cathode path in parallel with the capacitor and the control electrodes connected each to one voltage divider between the poles of the feeding voltage source. The voltage dividers are so designed and the control electrodes so connected to their voltage dividers that, during the charging of the capacitor, the voltage on the control electrode of the first transistor is higher than the voltage on the control electrode of the second transistor. If the charging process is interrupted before the relay has operated, the voltage on the control electrode of the first transistor falls more quickly than the voltage on the control electrode of the second transistor.

Abstract translation: 在由延迟由电容器的充电时间确定的静态分量组成的时滞继电器中实现短恢复时间的装置包括两个可编程单结晶体管，阳极 - 阴极通路与电容器并联， 控制电极分别连接到馈电电压源极之间的一个分压器。 分压器如此设计，并且控制电极连接到它们的分压器，在电容器充电期间，第一晶体管的控制电极上的电压高于第二晶体管的控制电极上的电压。 如果在继电器操作之前充电过程中断，则第一晶体管的控制电极上的电压比第二晶体管的控制电极上的电压下降得更快。