Method for controlling temperature of hot isobaric press and hot isobaric press

A technology of presses, heat, etc., applied in the field of presses, can solve the problems of preventing separation, no longer being able to achieve effects, incompleteness, etc., and achieve the effect of precise process control

Inactive Publication Date: 2011-12-14
克莱默热处理设备公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in pressure vessel systems, the heating element acts at the outer surface of the charge zone and thus cannot completely prevent separation inside the charge zone
In the embodiment according to WO 2003/070 402 A1, an active convective flow through the charging zone is used in a targeted manner, wherein

Method used

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  • Method for controlling temperature of hot isobaric press and hot isobaric press
  • Method for controlling temperature of hot isobaric press and hot isobaric press
  • Method for controlling temperature of hot isobaric press and hot isobaric press

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Embodiment Construction

[0026] The pressure vessel 1 shown in the figures has a generally inner charging zone 19 and a thermal insulation 8 arranged between the charging zone 19 and the outer wall of the pressure vessel 1 . In order to form the convection gap 28 , a convection sleeve 27 is arranged in the filling area 19 . The cooling process of the pressure vessel 1 as described above is explained below. Active heating with a heated fluid or by means of heating elements is within the purview of the person skilled in the art, possibly modified for the direction of convection. Furthermore, inside the insulation 8 there is a heating element 4 and a charging device 18 is usually arranged on a charging support plate not visible here or in the case of blocks by means of a material support (not shown) on the charging support board.

[0027] The pressure vessel 1 also has closing caps 2 and 3 which can be used for charging and discharging the pressure vessel 1 , but for the sake of simplicity of descripti...

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Abstract

A method for controlling the temperature of a hot isobaric press comprising a pressure vessel (1) having a charging zone (19) located inside and being arranged between the charging zone and the pressure vessel The heat insulator (8) between them, wherein, the heating element (4) and the charging area (19) with the charging device (18) are arranged in the heat insulator (8). Therein, in addition to at least one existing natural or activated convection for heating or cooling or for maintaining the temperature level, at least one swirl (23) is actively or passively formed in the pressure vessel (1). An independent or also suitable hot isobaric press for this method is characterized in that in the pressure vessel (1) there are arranged active or passive means for forming a swirl (23) which occurs essentially at an angle to the convection device.

Description

technical field [0001] The invention relates to a method of controlling the temperature of a hot isobaric press according to the preamble of claim 1 and a hot isobaric press according to the preamble of claim 10 . Background technique [0002] Hot isobaric presses (HIP) or high pressure boilers are used today in a wide range of applications. In this case, a solid workpiece or molding material consisting of powder is densified in a mold under high temperature and pressure conditions. In this case, materials of the same kind, but also different materials, can be combined with each other. Typically, the workpiece is placed in a furnace with heating means surrounded by a high pressure vessel. During or after heating, a fully isobaric pressure treatment is carried out by pressure in all directions of a fluid or an inert gas (usually argon) until the workpiece reaches optimum densification. This method is also used for redensification of components made of, for example, ceramic...

Claims

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Application Information

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IPC IPC(8): B30B11/00
CPCB22F3/15B30B11/002F27B5/16B22F2998/00F27B5/04B22F3/003
Inventor M·格拉夫
Owner 克莱默热处理设备公司
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