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公开(公告)号：US3871202A
公开(公告)日：1975-03-18
申请号：US46303974
申请日：1974-04-22
Applicant: ASEA AB
Inventor： CLAESSON HARRY
Abstract: A forging press includes a forging chamber into which a forging cylinder can be pressed. The forging cylinder is integral with a main piston arranged in a working cylinder to which pressure fluid can be supplied. The forging piston is slidable within an annular member which is fixed in an axially slidable sleeve, and which can be moved by pressure fluid supplied to either end thereof. Within the main piston is a pressure-equalizing chamber, into which fits a stationary back-pressure piston. Passages are provided connecting the pressure equalizing chamber with the forging chamber. The cross-section of the back-pressure piston is less than that of the forging piston. In the bottom part of the forging chamber there is arranged a groove which connects with a discharge passage. When pressure fluid is applied to the sleeve, it moves downwardly and the annular member engages the bottom of the forging chamber and closes the outlet groove so as to prevent the escape of fluid therefrom. Pressure in the main cylinder then pushes down the forging piston. As the cross-section area of the back-pressure piston is smaller than that of the forging piston, the increase in volume of the pressure-equalizing chamber will not be as great as the decrease in volume of the forging chamber. This in turn leads to an increase in pressure in both chambers. The relation between the cross-section areas of the back-pressure piston and the forging piston is chosen so that a suitable pressure increase is obtained in the chambers.
Abstract translation: 锻造压力机包括锻造室，锻造缸可以压入其中。 锻造气缸与布置在可供应压力流体的工作气缸中的主活塞一体。 锻造活塞可在环形构件内滑动，该环形构件固定在可轴向滑动的套筒中，并且可通过供应到其任一端的压力流体移动。 在主活塞内部是一个压力平衡室，其内装有固定的背压活塞。 提供了将均压室与锻造室连接的通道。 背压活塞的横截面小于锻造活塞的横截面。 在锻造室的底部设置有与排放通道连接的凹槽。 当压力流体被施加到套筒上时，其向下移动并且环形构件接合锻造室的底部并且关闭出口槽，以便防止流体从其中逸出。 主缸内的压力然后推下锻造活塞。 由于背压活塞的截面积小于锻造活塞的截面积，因此压力均衡室的容积增加不会与锻造室的体积减小一样大。 这又导致两个腔室中的压力增加。 选择背压活塞和锻造活塞的横截面积之间的关系，使得在腔室中获得合适的压力增加。
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192.发明授权
公开(公告)号：US3866306A
公开(公告)日：1975-02-18
申请号：US43765274
申请日：1974-01-29
Applicant: ASEA AB
Inventor： KORSELL TORSTEN , LARKER HANS , LUNDBLAD ERIK , NILSSON JAN
CPC classification number: B21C23/22 , B21C23/007 , Y10T428/12285 , Y10T428/12292 , Y10T428/12319 , Y10T428/12326
Abstract: In the hydrostatic extrusion of compound billets, in which the billet is formed of a core of one material and a casing surrounding the core of another material, and in which a gap is left during the assembly of the billet to allow for deformation of the casing, the core is provided with a point and the casing has an inwardly directed conical flange within which the point of the core rests. At the back end, the core is provided with a sealing device for preventing the entry of fluid into the space between the core and the casing. In order to prevent the compression of the air in the space between the core and the casing, the core is provided at its front end with passages which open into the point of the core and which communicate with the space between the core and the casing, providing an air escape arrangement.
Abstract translation: 在复合坯料的静压挤压中，其中坯料由一种材料的芯形成，围绕另一种材料的芯的壳体，并且在坯料组装期间留下间隙以允许壳体变形 芯部设置有点，并且壳体具有向内指向的圆锥形凸缘，其中芯部的位置在该凸缘内。 在后端，芯部设置有用于防止流体进入芯部和壳体之间的空间的密封装置。 为了防止芯部和壳体之间的空间中的空气的压缩，芯在其前端处设置有通向芯的点的通道，并且与芯和壳体之间的空间连通， 提供排气装置。
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公开(公告)号：US3850557A
公开(公告)日：1974-11-26
申请号：US42092473
申请日：1973-12-03
Applicant: ASEA AB
Inventor： DANIELI S , SUNDSTRAND A
Abstract: A container for manufacturing an alkali product by introducing powder into the container and sintering the container under pressure to form a solid body in a pressure furnace where it is subjected to high temperature and all-sided pressure, includes a pair of plates which at their outer parts form a forming space and at their center part form a disc-shaped central portion having a central opening and an annular wrinkle, and a discshaped gap extending between the central opening and the forming space through which powder introduced through the central opening may pass into the forming space under the action of centrifugal force.
Abstract translation: 一种用于通过将粉末引入容器并在压力下烧结容器以在其受到高温和全面压力的压力炉中形成固体的制造容器的容器包括一对在其外部的板 零件形成成形空间，在其中心部分形成具有中心开口和环形褶皱的圆盘形中心部分，以及在中心开口和形成空间之间延伸的盘形间隙，通过该形成空间通过中心开口引入粉末 在离心力的作用下进入成形空间。
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194.发明授权Thyristor rectifier having a device for self-ignition or recovery protection 失效具有自燃或恢复保护装置的THYRISTOR整流器
公开(公告)号：US3842337A
公开(公告)日：1974-10-15
申请号：US37075373
申请日：1973-06-18
Applicant: ASEA AB
CPC classification number: H02M1/092 , H02H7/1206 , H02M1/088
Abstract: A thyristor rectifier for high voltage includes a number of series-connected thyristors with a control device for each thyristor and a control circuit for the whole rectifier connected to the control devices. There is a control pulse emitter in each control device which emits an indicating pulse when the voltage over the corresponding thyristor in the conducting direction amounts to a certain value. A protection device is provided which emits a signal for the whole rectifier through a control pulse transmitter if a voltage grows in the conducting direction of the rectifier at a time when only an insufficient number of thyristors have regained their blocking ability. This protection device includes a memory circuit and a counter to register the indicating pulses from the emitters of the control devices and an output circuit connected between the counter and the control pulse transmitter which emits a signal for ignition of the whole thyristor in dependence on a predetermined number of indicating pulses.
Abstract translation: 用于高电压的晶闸管整流器包括多个串联连接的晶闸管，其具有用于每个晶闸管的控制装置，以及连接到控制装置的整个整流器的控制电路。 每个控制装置中有一个控制脉冲发射器，当导通方向上相应的晶闸管上的电压达到一定值时，发出指示脉冲。 如果在只有不充分数量的晶闸管已经恢复其阻挡能力的时候，如果在整流器的导通方向上的电压增加，则通过控制脉冲发射器发出用于整个整流器的信号的保护装置。 该保护装置包括存储器电路和计数器，用于对来自控制装置的发射器的指示脉冲进行寄存，以及连接在计数器和控制脉冲发射器之间的输出电路，其根据预定的发射信号发出整个晶闸管的点火信号 指示脉冲数。
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公开(公告)号：US3835232A
公开(公告)日：1974-09-10
申请号：US30871272
申请日：1972-11-22
Applicant: ASEA AB
Inventor： MARCHNER J
Abstract: A tilting arc furnace has a roof through which liftable electrodes are passed and to which furnace material charging tubes are applied, both the electrodes and the charging tubes requiring to be removed free from the roof to permit tilting of the furnace. The electrodes have lifting arms and the tubes pass through the arms and above the arms have carriers which during the lifting action of the arms, are engaged by the arms so that the tubes are simultaneously lifted, both the electrodes and tubes lifting free from the furnace roof for tilting of the furnace.
Abstract translation: 倾斜电弧炉具有屋顶，通过该屋顶可升降电极通过并且施加炉材料充电管，电极和充电管都需要从屋顶移除以允许炉的倾斜。 电极具有提升臂并且管通过臂并且臂上方具有在臂的提升动作期间由臂接合的载体，使得管同时提升，电极和管从炉中提升 炉顶倾斜炉
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Patent Agency Ranking196.发明授权Means for automatic control of batching when casting from a heat-retaining of casting furnace or ladle (crucible) 失效用于自动控制从铸造炉或铝合金（可破碎）的热保护铸造时的自动控制
公开(公告)号：US3834587A
公开(公告)日：1974-09-10
申请号：US30568472
申请日：1972-11-13
Applicant: ASEA AB
CPC classification number: B22D39/06
Abstract: For the automatic control of batching when casting from a heatretaining furnace or ladle, an arrangement is provided for tapping the ladle in batches into a batching ladle. An arrangement is provided for weighing the batching ladle and the output signal of the weighing arrangement is fed to a deriving device which gives an output signal dependent on the melt flow. The output signal of the deriving device is fed to a comparison device along with a signal representing a desired value. A control device for the tapping of the furnace is combined with the output signal of the comparison device to terminate tapping when a predetermined quantity of melt has been tapped.
Abstract translation: 为了在从保温炉或钢包铸造时自动控制配料，提供了将钢包分批进料到批料浇包中的装置。 提供了用于称重分批浇包的布置，并且称重装置的输出信号被馈送到导出装置，该导出装置给出取决于熔体流动的输出信号。 导出装置的输出信号与表示期望值的信号一起馈送到比较装置。 将炉子出料的控制装置与比较装置的输出信号相结合，以便在预定量的熔体被敲击时终止分流。
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公开(公告)号：US3821629A
公开(公告)日：1974-06-28
申请号：US37218973
申请日：1973-06-21
Applicant: ASEA AB
Inventor： LISS G
CPC classification number: H02M7/7575 , H02M1/081 , Y02E60/60
Abstract: A converter station is composed of two parallel static converters each provided with a control system including a current regulator which is adjusted in accordance with a predetermined load distribution over the two converters. Each of the control systems is provided with an upper and a lower limit value emitter for the control angle. In order to equalize the load distribution between the static converters in the event of a commutation fault in one of them, current sensitive and comparing members are provided which sense the current distribution between the converters. These members emit a signal in the least loaded static converter to the lower limit value emitter in the same static converter for temporarily reducing the lower limit value for the control angle, in response to deviation from the normal current distribution exceeding a certain value.
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公开(公告)号：US3806793A
公开(公告)日：1974-04-23
申请号：US35648873
申请日：1973-05-02
Applicant: ASEA AB
Inventor： LISS G
CPC classification number: H02M7/1557 , G01R25/00
Abstract: For measuring the delay angle in a static converter, a rampfunction generator is provided for each rectifier phase connected to the alternating current network. The ramp-function generator includes a timing device responsive to passage through zero of the commutation voltage derived from the network, and a connecting member which connects the ramp-function generator to a sensing and holding circuit. The connecting member is controlled by the control pulse device of the converter so that the signal stored in the sensing and holding circuit at any moment corresponds to the delay angle for the rectifier last ignited.
Abstract translation: 为了测量静态转换器中的延迟角，为连接到交流网络的每个整流器相位提供了斜坡函数发生器。 斜坡函数发生器包括响应于从网络导出的换向电压通过零的定时装置，以及将斜坡函数发生器连接到感测和保持电路的连接构件。 连接构件由转换器的控制脉冲装置控制，使得存储在感测和保持电路中的信号在任何时刻对应于最后被点燃的整流器的延迟角。
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公开(公告)号：US3792271A
公开(公告)日：1974-02-12
申请号：US3792271D
申请日：1972-06-30
Applicant: ASEA AB
Inventor： SANDBLOM H
CPC classification number: G01N21/5911
Abstract: An arrangement for determining moisture content, surface weight or other properties of travelling paper webs includes two detectors, at least one of which is arranged stationarily at one side of the path of the web, along with a comparison device to which the detectors are connected. Light is supplied to the fixed detector by a stationary mirror, and to the other detector by a mirror system which is movable across the web.
Abstract translation: 用于确定移动纸幅的水分含量，表面重量或其他性质的布置包括两个检测器，其中至少一个被固定地布置在幅材的路径的一侧，以及与检测器连接的比较装置。 光通过静止反射镜供应到固定检测器，并且通过可跨越幅材移动的反射镜系统提供给另一个检测器。
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公开(公告)号：US3786710A
公开(公告)日：1974-01-22
申请号：US3786710D
申请日：1972-06-01
Applicant: ASEA AB
Inventor： BACKLIN O
CPC classification number: B21D28/06 , B23D15/005 , Y10T29/49078 , Y10T83/4577 , Y10T83/461 , Y10T83/6486 , Y10T83/8773
Abstract: For cutting in sequence from a strip of sheet metal all the plates of a transformer core which are interleaved with separate yoke and leg plates, a number of shears are placed obliquely in relation to the feeding direction of the metal strip to cut off plates from the metal strip, along with a number of punches to make notches in the yoke plates for connection of the central leg to the yoke. A number of stops movable into and out of the path of the strip are provided to stop the strip in proper position before each cutting step.
Abstract translation: 为了从片状金属片顺序切割，与分离的轭和腿板交错的变压器芯的所有板，相对于金属带的进给方向倾斜放置多个剪切机，以将板从 金属带，以及多个冲头，以在轭板中形成凹口，用于将中心腿连接到轭。 提供可移入和移出条带路径的多个止动件，以在每个切割步骤之前将条带停止在适当的位置。
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