公开(公告)号：US3698220A

公开(公告)日：1972-10-17

申请号：US3698220D

申请日：1971-05-20

Applicant: ASEA AB

Inventor： NILSSON JAN ,  LARKER HANS

IPC: B21C23/00

CPC classification number: B21C23/007

Abstract: A press for hot hydrostatic extrusion of a billet, has a stand, a pressure chamber axially movable in the stand to engage a die mounted in one end against a die support carried by the stand, a punch slidable in the pressure chamber to raise a pressure medium in the pressure chamber to extrusion pressure, and a billet holder slidable in the chamber for pressing the billet against the die during sliding movement of the pressure chamber to closing position. In order to prevent contact between the die support and the die until extrusion is about to begin, with consequent cooling of the billet which interferes with the extrusion, an annular canted spring is arranged in a groove in the face of the die support opposite the die so as to prevent contact therebetween during closing movement of the pressure chamber.

Abstract translation: 用于坯料的热静压挤压的压力机具有支架，可在支架中可轴向移动的压力室，以将一端安装在一端的模具抵靠由支架承载的模具支撑件;可在压力室中滑动的冲头，以提高压力 介质在压力室中以挤出压力，以及坯料保持器，其可在室中滑动，用于在压力室滑动到关闭位置期间将坯料压在模具上。

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

IPC: B21C23/00 ,  B21C23/22 ,  B21F19/00 ,  B21D39/04

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。

公开(公告)号：US3702555A

公开(公告)日：1972-11-14

申请号：US3702555D

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 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：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：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。