Avure Technologies Ab

Asea Aktiebolag

Flow International Corporation

Flow Holdings Gmbh (sagl) LLC

Quintus Technologies Ab

Lennart Svensson

Mohamed Ahmed Hashish

Chidambaram Raghavan

Olivier L Tremoulet, Jr

Stefan Sehlstedt

Keijo Hellgren

Carl Bergman

Staffan Elmgren

The present invention relates to a pressure vessel () for a high pressure press, wherein the pressure vessel comprising a first sub-cylinder (), a second sub-cylinder (), pre-stressing means (), and a securing member (). The first and the second sub-cylinders () are axially connected to form a cylinder body () for enclosing a high pressure medium. The first sub-cylinder () is in an outer wall provided with a first seat () for receiving a first part () of the securing member () and the second sub-cylinder () is in an outer wall provided with a second seat () for receiving a second part () of the securing member (). The securing member () is fitted in the first and second seats (). The securing member (), and the first and second scats () are arranged such that the securing member (), and the first and second scats () cooperate to prevent separating axial movement between the first and the second sub-cylinders (). The pre-stressing means () is provided around the envelope surface of the cylinder body () such that the cylinder body () is radially pre-stressed and such that the securing member () is locked in the first and second seats ().

Pressure vessel for a high pressure press

The present invention relates to a pressure vessel () for a high pressure press comprising at least a first sub-cylinder () and a second sub-cylinder (), which are axially connected to form a cylinder body () for enclosing a high pressure medium, and a sealing arrangement arranged at the inner wall of the cylinder body for sealing the joint () between the first and the second sub-cylinder () against leakage of the pressure medium. The sealing arrangement is comprising a ring shaped sealing band (), a first circumferential protruding flange (), which is arranged on the inner wall of the first sub-cylinder and which axially extends from the joint () and away from the second sub-cylinder (), and a second circumferential protruding flange (), which is arranged on the inner wall of the second sub cylinder () and which axially extends from the joint () and away from the first sub-cylinder (). The sealing band (), in mounted position, is located concentrically within the first and the second protruding flanges () such that it in a radially pre-stressed manner abuts against the first and second protruding flanges () and sealingly overlaps the joint () between the first and the second sub-cylinder (). The sealing arrangement further comprises a first circumferential mounting space (), which is arranged in the inner wall of the first sub-cylinder () and which axially extends from the first protruding flange () and away from the second sub-cylinder (), for facilitating exchange of components of the sealing arrangement.

An isostatic press is disclosed in which tunnel-like passages are formed between the envelope surface of a force absorbing body and a prestressing device. A method and a press are further disclosed, wherein a cylindrical element is prestressed simultaneously with obtaining a tunnel-like passage on the cylindrical element.

Press and a method for manufacturing a press

A high-pressure press includes a pressure vessel surrounded by a force-absorbing press frame. The high-pressure press also includes a detection structure for detecting changes in length of at least one column comprised in the press frame, the changes in length depending on the pressure inside the pressure vessel. The detection structure includes a limit switch, which is adapted to detect if the change in length of the column has reached a threshold value and, in that case, interrupt a pressing operation in progress and reduce the pressure inside the pressure vessel.

High-pressure press

Element for a superpressure static fluid seal

High-pressure static seals and pressure vessels with static seals for containing fluid at high pressures are shown and described. Embodiments of the invention allow a plug to be easily, manually inserted into and removed from the pressure vessel. A metallic ring in the seal is configured to expand under pressure to prevent an O-ring in the seal from being extruded into a gap between the plug and the vessel wall, but not to expand so much as to cause galling or similar damage when the seal moves with respect to the wall under elevated pressure.

Static fluid seals and seal assemblies for ultrahigh pressure fluid containment

A device and method for expansion forming of an article used in conjunction with an isostatic press comprising a pressure cell equipped with an elastomeric membrane. The expansion forming tool has at least one pressure intensifier and at least one molding cavity. A blank is arranged in the molding cavity and an elastomeric forming body is arranged inside the blank. The pressure intensifier is arranged such that it is acted upon by the elastomeric membrane and it exerts pressure on the elastomeric forming body inside the blank inside the molding cavity so that the blank is expanded into an article shaped according to the shape of the molding cavity.

Device and method for expansion forming

A press for shaping a sheet metal blank in a cavity with a forming tool which determines the shape of the finished product. The sheet is pressed against the tool by a diaphragm which is influenced by a pressure medium on the side facing away from the cavity. The forming tool consists of an inexpensive casting material supported in a cup-shaped container. The space between the bottom and sides of the container and the bottom and sides of the cavity is filled with an elastic material.

Cavity forming press

Sealing means useful in connection with cylindrical, elongated furnaces wherein materials are treated at high pressures and high temperatures. Such furnaces generally include a cylinder, end closures and a cooling plate structure carried by the end closure and disposed internally of the furnace. The sealing means comprises an attachment ring for retaining the cooling plate in position on the end closure and a number of annular seals disposed in sealing relationship with respect to the gap between the attachment ring and the cooling plate structure. A draining channel is provided to intercommunicate said gap and the atmosphere surrounding the furnace.

Growing community of inventors

Västerås, Sweden

Lennart Svensson