公开(公告)号：SE370027B

公开(公告)日：1974-09-30

申请号：SE7301245

申请日：1973-01-30

Applicant: ASEA AB

Inventor： KOERSELL T ,  LARKER H ,  LUNDBLAD E ,  NILSSON J

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

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.

公开(公告)号：SE363958B

公开(公告)日：1974-02-04

申请号：SE778272

申请日：1972-06-13

Applicant: ASEA AB

Inventor： LARKER H ,  ISAKSSON S ,  LINDBERG M ,  GRANBERG G

IPC: B22F3/15 ,  C21D1/74 ,  F27D11/02 ,  H05B3/02 ,  H05B3/62

公开(公告)号：SE363748B

公开(公告)日：1974-02-04

申请号：SE778372

申请日：1972-06-13

Applicant: ASEA AB

Inventor： LARKER H ,  ISAKSSON S ,  ADLERBORN J ,  LINDBERG R

IPC: B22F3/14 ,  B22F3/12 ,  B22F3/15 ,  B30B11/00 ,  C04B35/645 ,  B22F3/04

公开(公告)号：DK127355B

公开(公告)日：1973-10-22

申请号：DK460270

申请日：1970-09-08

Applicant: ASEA AB

Inventor： NILSSON J ,  LARKER H

IPC: B23K20/08 ,  B21D26/08 ,  B21F15/00 ,  H01R43/02

公开(公告)号：CA931112A

公开(公告)日：1973-07-31

申请号：CA113983

申请日：1971-05-26

Applicant: ASEA AB

Inventor： NILSSON J ,  LARKER H

IPC: B21C23/00 ,  B21C23/21

公开(公告)号：CA925472A

公开(公告)日：1973-05-01

申请号：CA105651

申请日：1971-02-17

Applicant: ASEA AB

Inventor： LARKER H ,  NILSSON J

IPC: B21C23/21 ,  B21C23/00

公开(公告)号：SE440222B

公开(公告)日：1985-07-22

申请号：SE7804991

申请日：1978-05-02

Applicant: ASEA AB

Inventor： ADLERBORN J ,  LARKER H ,  NILSSON J

IPC: G21C3/00 ,  C04B35/593 ,  C04B35/645 ,  G21C3/62 ,  C04B35/58

公开(公告)号：SE8300645D0

公开(公告)日：1983-02-08

申请号：SE8300645

申请日：1983-02-08

Applicant: ASEA AB

Inventor： ADLERBORN J ,  LARKER H ,  NILSSON J ,  MATTSSON B

IPC: B22F3/12 ,  B22F3/14 ,  B22F3/15 ,  C04B35/58 ,  C04B35/593 ,  C04B35/645

Abstract: An object is manufactured from a powdered material by isostatic pressing of a body, preformed from the powdered material, with a pressure medium, whereby the preformed body, in which at least the surface layer consists of a ceramic material in the form of a nitride, is surrounded by a casing which is rendered impenetrable to the pressure medium, before the isostatic pressing is carried out and the powder sintered. As the material in the casing there is used boron oxide or a glass containing boron oxide or a material forming glass while being heated, in which the content of boron oxide is sufficiently high for the glass-or the glass formed during heating-to be removable by water. The preformed body surrounded by the casing is subjected to a heat treatment for the formation of boron nitride on the surface of the preformed body, before the isostatic pressing is carried out. The casing is removed from the finished product by means of water or water vapor.

公开(公告)号：SE426114B

公开(公告)日：1982-12-06

申请号：SE8003699

申请日：1980-05-19

Applicant: ASEA AB

Inventor： LARKER H ,  TEGMAN R

IPC: G21F9/36

Abstract: A container for enclosing particulate or piece-formed radioactive material which is to be converted into a solid body by isostatic pressing at a high temperature and a high pressure. The container may have a corrugated sheath and suitably a plane lid and a plane bottom. The corrugation makes possible axial compression of the container prior to the pressing. The container may also have a cylindrical sheath and bellows projecting into the sheath and joining the sheath of the container to a lid and a bottom. The bellows make it possible to insert the lid and the bottom by gas pressure, so that the material present in the container is axially compressed.

公开(公告)号：SE423655B

公开(公告)日：1982-05-17

申请号：SE8003698

申请日：1980-05-19

Applicant: ASEA AB

Inventor： LARKER H ,  TEGMAN R

IPC: G21F9/36

Abstract: Method of converting a radioactive material in particle form into a dense block by enclosing the particulate material 6 in a redundant container. This is constructed of several sheet metal capsules 1, 7, 10, previously arranged one in the other and each one closed by a lid 1b, 7c, 10c. In order to provide suitable placement of weld seams 2, 8, 11 for remote-controlled welding, intermediate spaces 9 are formed between the lids of the capsules. These are filled with a powder, advisedly a spherical steel powder, or with appropriately configured pieces of steel, which reduce the deformations of the lid 1b, 7c, 10c and, thus, the risk of ruptures and leaks when the assembled capsule is put under pressure. The risk of leaks forming in all the capsules 1, 7, 10 is very low and so is the risk of contamination of the press equipment.