公开(公告)号：US3927891A

公开(公告)日：1975-12-23

申请号：US46240274

申请日：1974-04-19

Applicant: ASEA AB

Inventor： LARKER HANS ,  NILSSON JAN

IPC: F16J15/28 ,  F16J15/56 ,  F16J15/16

CPC classification number: F16J15/56

Abstract: In a high 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.

Abstract translation: 在具有密封保持器的高压压机中，在高压缸壁与模具之间设置高压密封件，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， 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件保持器邻接的表面。 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：US3914981A

公开(公告)日：1975-10-28

申请号：US54347375

申请日：1975-01-23

Applicant: ASEA AB

Inventor： NILSSON JAN ,  SYVAKARI PERTTI

IPC: B21C23/00 ,  B21C25/02

CPC classification number: B21C25/02 ,  B21C23/007

Abstract: A composite die for hydrostatic extrusion is composed of a preforming portion with a conical inlet portion and an endforming portion, separated from each other along a radially dividing plane. A force-absorbing support ring surrounds that part of the end-forming portion which is in contact with and nearest the pre-forming portion. There is a gap on the outside of the part of the end-forming portion remote from the pre-forming portion. Separate rings surround and abut the calibrating endforming portion and the support ring.

Abstract translation: 用于静液压挤出的复合模具由具有锥形入口部分和端部形成部分的预成型部分组成，沿着径向分割平面彼此分开。 力吸收支撑环围绕与预成形部分接触并最接近的端部成形部分的部分。 在端部形成部分的远离预成形部分的部分的外侧上有间隙。 独立的环围绕并邻接校准端部形成部分和支撑环。

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：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：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：US3702556A

公开(公告)日：1972-11-14

申请号：US3702556D

申请日：1971-02-25

Applicant: ASEA AB

Inventor： LARKER HANS ,  NILSSON JAN

IPC: B21C23/00 ,  B21C23/08

CPC classification number: B21C23/007

Abstract: For hydrostatic extrusion, a press is provided having a yoke. One of the end pieces of the yoke carries a die receiving block having an extrusion passage therethrough. A pressure cylinder is mounted within the yoke for movement towards and from the die receiving block. Slidable in the cylinder of the high pressure cylinder is a billet holder which divides the space within the cylinder into two parts. The billet holder has a spring controlled valve which prevents passage of pressure fluid therethrough until a predetermined pressure differential exists between the chambers. A punch is provided for sliding into and out of the high pressure cylinder on the opposite side thereof from the die. The die and billet are first positioned between the high pressure cylinder and the die receiving block, after which the high pressure cylinder is moved to enclose the billet. Then pressure is applied in the high pressure cylinder on the side of the punch to move the billet holder against the billet and move the billet into engagement with the die. Then the pressure behind the billet holder is increased so that the fluid passes through the billet holder and thereafter further increased by advancing the punch into the high pressure cylinder so that the fluid exerts sufficient pressure on the billet to extrude it. Before opening the high pressure cylinder, the punch is withdrawn and cool pressure fluid is admitted into the end of the cylinder remote from the punch.

Abstract translation: 对于静压挤出，提供具有轭的压力机。 轭的一个端部带有具有穿过其中的挤出通道的模具接收块。 压力缸安装在轭架内以朝向和离开模具接收块移动。 在高压气缸的气缸中可滑动的是将气缸内的空间分成两部分的钢坯保持架。 坯料保持器具有弹簧控制阀，其防止压力流体通过，直到在室之间存在预定的压力差。 提供了用于在与模具相反的一侧滑入和流出高压缸的冲头。

公开(公告)号：US3559436A

公开(公告)日：1971-02-02

申请号：US3559436D

申请日：1968-10-28

Applicant: ASEA AB

Inventor： NILSSON JAN

IPC: B21C23/00 ,  B21C23/21 ,  F16J10/02 ,  B21C23/08

CPC classification number: B21C23/211 ,  B21C23/007 ,  F16J10/02

Abstract: A HYDRAULIC PRESS HAS A MAIN OPERATING CYLINDER WITH AN OPERATING PISTON SLIDABLE THEREIN AND AN EXTRUSION CYLINDER WITH A DIE AT ONE END AND AN EXTRUDING PISTON RIGID WITH THE OPERATING PISTON ENTERING THE OTHER END. THE EXTRUSION CYLINDER HAS A SHEATH WOUND AROUND IT, END PIECES ENCLOSING THE SHEATH AND SEALS BETWEEN THE END PIECES AND THE ENDS OF THE EXTRUSION CYLINDER. A RING ENGAGING THE UPPER END PIECE IS PRESSED DOWNWARD AGAINST IT BY AUXILIARY PISTONS SLIDABLE IN CYLINDERS FORMED IN THE OPERATING PISTON TO COMPRESS THE SEALS BETWEEN THE END PIECES AND THE ENDS OF THE CYLINDER.