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：US3914968A

公开(公告)日：1975-10-28

申请号：US51150974

申请日：1974-10-03

Applicant: ASEA AB

Inventor： KORSELL TORSTEN ,  LUNDSTROM STURE

IPC: B21C27/00 ,  F16J15/32 ,  B21D22/10

CPC classification number: F16J15/324 ,  B21C27/00

Abstract: In a high-pressure press in which a pressure piston or die projects into the high-pressure cylinder, a seal is provided between the pressure piston or die and the wall of the cylinder by inner and outer rings resting against seal holders at the end of the cylinder. The inner surface of the inner ring is provided with at least a tangentially extending groove which is connected by passages with the pressure space within the cylinder.

Abstract translation: 在压力活塞或模具突出到高压气缸中的高压压机中，通过内圈和外圈在压力活塞或模具与气缸的壁之间设置密封件，内圈和外圈在靠近密封件支架 气瓶。 内圈的内表面设置有至少一个切向延伸的凹槽，其通过与气缸内的压力空间的通道连接。

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*.