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Soaking pressing method and apparatus

A pressurizing device and heat-soaking technology, applied in presses, lighting and heating equipment, presses for material forming, etc., can solve problems such as difficult temperature distribution, difficult temperature control of processed products, and increased temperature fluctuations of processed products

Inactive Publication Date: 2004-01-21
KOBE STEEL LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, in the control of the power supply to the heater, a temperature distribution that is difficult to control the temperature occurs.
Including this phenomenon, it is difficult to control the temperature of the processed product, that is, the temperature fluctuation of the processed product increases, and it is very difficult to ensure the mechanical properties required for the processed product composed of the material subjected to heat treatment

Method used

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  • Soaking pressing method and apparatus
  • Soaking pressing method and apparatus
  • Soaking pressing method and apparatus

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Embodiment Construction

[0031] Embodiments of the present invention will be described below with reference to the drawings.

[0032] Figure 4 It is a figure which shows an example of the high-pressure container 2 and the electric furnace 3 of the main part of the soaking pressurization apparatus (HIP apparatus) 1 of this invention, and the HIP apparatus 1 is the processing chamber 4 in the electric furnace 3 accommodated in the high-pressure container 2 It is a device that heats the processed product 5 inside, injects a pressurized medium gas into the high-pressure vessel 2 and raises the pressure, and heats and pressurizes the processed product 5 (HIP treatment).

[0033] The high-pressure container 2 is composed of a high-pressure cylinder 6 with an axis and an opening up and down, an upper cover 7 that blocks the upper opening of the high-pressure cylinder 6, and a lower cover 8 that blocks the lower opening of the high-pressure cylinder 6. The load applied to the upper and lower covers 7 and 8 ...

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Abstract

While a workpiece is heated and pressed by one of a pair of high-pressure vessels, a workpiece being pressed by the other high-pressure vessel is placed in a heated state. In the reducing process after termination of heating and pressing treatment of the workpiece by one high-pressure vessel, both the high-pressure vessels are placed in communication, and the pressure medium gas released from one high-pressure vessel is poured into the other high-pressure vessel. After pressures of both the high-pressure vessels have assumed a nearly balanced state, the pressure medium gas is sucked out of one high-pressure vessel by a compressor and pressed, and is poured into the other high-pressure vessel, and the workpiece is heated and pressed by the other high-pressure vessel. By the method as described, considerable shortening of cycle time of HIP treatment is achieved, and the HIP treatment can be carried out with high efficiency.

Description

technical field [0001] The present invention relates to soaking and pressing that can transport aluminum castings, magnesium castings, etc. under atmospheric pressure in a heated state, and can economically process a large amount of products whose soaking and pressing (HIP treatment) temperature is 600°C or lower The device (HIP device), in particular, relates to a method and device for shortening the operation cycle time and improving the economical efficiency of HIP treatment by combining two high-pressure vessels to perform pressurization and decompression in a short period of time. Background technique [0002] The problem of the present invention for industrial popularization of HIP treatment for castings of light alloy metal materials such as aluminum and magnesium is basically economical efficiency, that is, treatment cost. Among the costs of this HIP process, the cycle time may be long and the process cost may remain high. The present invention seeks to improve econ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B30B5/02B22F3/15C22F1/04C22F1/06F27B17/00
CPCC22F1/04C21D2241/02C22F1/06B30B11/002F17D1/07
Inventor 真锅康夫上舟惠生米田慎藤川隆男
Owner KOBE STEEL LTD
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