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Vertical vacuum heavy pressure gas quenching furnace with rotatable material rest

A high-pressure gas and vacuum furnace technology, applied in the direction of quenching agent, quenching device, heat treatment equipment, etc., can solve the problem of difficulty in ensuring consistent heating of workpieces, and achieve the effect of uniform heating and guaranteed performance

Inactive Publication Date: 2008-12-10
SHENYANG HENGJIN VACUUM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the vacuum high-pressure gas quenching furnace currently used, the workpiece is still in the furnace during high-temperature and high-vacuum operations. Due to the deviation of the furnace temperature, it is difficult to ensure consistent heating of the workpiece.

Method used

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  • Vertical vacuum heavy pressure gas quenching furnace with rotatable material rest
  • Vertical vacuum heavy pressure gas quenching furnace with rotatable material rest
  • Vertical vacuum heavy pressure gas quenching furnace with rotatable material rest

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Embodiment Construction

[0017] Vertical vacuum air quenching furnace with rotatable material rack, its structure is shown in figure 1 : Including the control system mainly based on industrial computer and PLC, the equipment adopts a vertical bottom-opening, bottom-loading vacuum furnace, the heating chamber is installed in the upper furnace body 13, and the upper part of the upper furnace body 13 has a cooling fan 14 and an evacuation The pipeline 15 communicates with the vacuum equipment. The heating chamber is composed of a cylindrical shape in the middle and an upper and lower circular insulation layer. It is characterized by a fixed rotating platform support 9 inside the inner circle of the lower furnace door 10, and the support 9 is coaxially installed and rotated. Disc 6, material rack 8, large gear 5 coaxially installed on the lower part of the rotating disc 6, eccentrically arranged rotary drive mechanism 1, which drives the main shaft 19 to fix the pinion 3, and the pinion 3 meshes with the b...

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Abstract

The invention discloses a vertical vacuum high-pressure gas-quenching furnace with a rotatable material rest, which is a bottom charging type vacuum furnace with a vertical downward-acting door and comprises a control system taking an industrial control computer and a PLC as main parts. The vertical vacuum high-pressure gas-quenching furnace is characterized in that: an inner circle of the inner side of a lower furnace door is provided with a rotating platform support which is coaxially provided with a rotating disc and the material rest, the lower part of the rotating disc is coaxially provided with a big gear, a pinion which is eccentrically arranged on a rotating driving mechanism is engaged with the big gear circumferencially to drive the rotating disc to rotate further to ensure that the material rest bearing workpieces can rotate around a vertical central axis; the root of the material rest is provided with a thicker thermal insulating layer, a lower shielding thermal insulating layer of a heating chamber is of a ring shape, and a ring platform shaped clearance is reserved between the thicker thermal insulating layer and the lower shielding thermal insulating layer; the rotating disc, the thermal insulating layer and the material rest on the rotating disc, and the rotating driving mechanism lift along with a furnace door; the vacuum furnace is controlled by adopting a PLC technology, and various actions, the temperature in the furnace and the rotation of the material rest are controlled interlockingly. The equipment can ensure that workpieces at various positions are uniformly heated, and the performances such as vacuum, positive pressure, dynamic seal, heat preservation, cooling and so on, are better assured.

Description

technical field [0001] The invention relates to a high-pressure gas quenching furnace in metallurgical equipment, in particular to a vertical vacuum high-pressure gas quenching furnace with a rotatable material rack. Background technique [0002] In the fields of military industry, aerospace and other processing technologies, the requirements for the uniformity of heating of the workpiece in the heat treatment process are getting higher and higher. However, in the vacuum high-pressure gas quenching furnace currently used, the workpiece is still in the furnace during high-temperature and high-vacuum operations. Due to the deviation of the furnace temperature, it is difficult to ensure consistent heating of the workpiece. Contents of the invention [0003] The object of the present invention is to provide a vertical vacuum high-pressure gas quenching furnace with a rotatable material rack, so that the workpiece can be rotated during heating, which can ensure the heating unif...

Claims

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Application Information

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IPC IPC(8): C21D1/62C21D1/613C21D1/773
Inventor 杨建川石岩曲绍芬张晓东赵建业顾景文
Owner SHENYANG HENGJIN VACUUM TECH
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