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：US3904391A

公开(公告)日：1975-09-09

申请号：US53833566

申请日：1966-03-29

Applicant: ASEA AB

Inventor： LINDSTROM OLLE ,  LUNDBLAD ERIK

IPC: B24D18/00 ,  C09K3/14 ,  C23C5/00

CPC classification number: C09K3/1445 ,  B24D18/00

Abstract: Diamond grains coated with a metallic coating of a thickness of 0.5-25 microns are embedded in a synthetic resin to form a grinding material.

Abstract translation: 将涂覆有厚度为0.5-25微米的金属涂层的金刚石颗粒嵌入合成树脂中以形成研磨材料。

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*.