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Heat treatment furnace and preparation process for producing high-strength metal rods using the heat treatment furnace

A technology for heat treatment furnaces and workpieces, used in heat treatment furnaces, heat treatment equipment, manufacturing tools, etc., can solve problems such as the improvement of magnetic normalizing performance is not too large, not enough to cover the cost of magnetic normalizing, and the influence of electromagnetic equipment cannot be ignored. , to achieve the effect of low production cost, low energy consumption and cost, and small layout impact

Active Publication Date: 2022-04-05
良启金属南通有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] And the research on magnetic normalizing has also been deepened more and more deeply: Sun Zhongji published "A Discussion on the Microstructure of Iron and Steel Materials by Magnetic Normalizing", expounding the significance of magnetic normalizing for enhancing the performance of workpieces. However, due to the need for magnetic normalizing The cost and power consumption of electromagnetic equipment required by the alternating magnetic field, as well as the problems that must be solved to prevent overheating of the equipment, lead to much higher cost and energy consumption of the equipment required for magnetic normalizing than permanent magnets for magnetic annealing, and the magnetic The part of the performance improvement brought by normalizing is not too big (about 10%-20% improvement), it is very likely that the price increase brought about by the performance improvement is not enough to cover the cost of magnetic normalizing
[0004] In addition, due to the large volume of the heat treatment furnace and a large number of additional equipment, it is not only limited by the volume and structure of the heat treatment furnace to install electromagnetic equipment that can generate a strong magnetic field around the main body of the heat treatment furnace, but also the impact of the electromagnetic equipment on the surrounding production equipment and electronic devices. The impact cannot be ignored, and it is likely to have an impact on the health of the surrounding staff; in addition, because the temperature will have a certain impact on the magnetic field strength of the electromagnetic equipment, it is necessary to prepare a temperature control device to cool the electromagnetic equipment, which is also a positive magnetic effect. One of the reasons why fire has not been used on a large scale

Method used

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  • Heat treatment furnace and preparation process for producing high-strength metal rods using the heat treatment furnace
  • Heat treatment furnace and preparation process for producing high-strength metal rods using the heat treatment furnace
  • Heat treatment furnace and preparation process for producing high-strength metal rods using the heat treatment furnace

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Effect test

Embodiment 1

[0038] Such as Figure 1-3 As shown, a heat treatment furnace can be used for magnetic normalizing, comprising a heat treatment furnace body 1, a workpiece placement frame 2 is arranged in the heat treatment furnace body; an annular permanent magnet conveying device group is provided at both ends of the heat treatment furnace body; The permanent magnet conveying device group includes the first annular permanent magnet conveying device 3 and the second annular permanent magnet conveying device 4 which are symmetrically arranged at both ends of the heat treatment furnace body, and the first annular permanent magnet conveying device and the second annular permanent magnet The conveying device is connected with the inner cavity of the heat treatment furnace body; the ring-shaped permanent magnet conveying device group is located on the extension line of the length direction of the workpiece placement frame, that is, the ring-shaped permanent magnet moves horizontally;

[0039] A p...

Embodiment 2

[0054] Similar to Embodiment 1, the difference is that the ring-shaped permanent magnet delivery device group is on the perpendicular bisector of the workpiece placement frame, that is, the first ring-shaped permanent magnet delivery device and the second ring-shaped permanent magnet delivery device are installed At the upper and lower ends of the heat treatment furnace, the ring-shaped permanent magnet moves up and down, which is more suitable for small heat treatment furnaces. The single roll of rolled material is laid flat, and the ring-shaped permanent magnet can pass through the middle of the rolled material preferentially.

Embodiment 3

[0056] Such as Figure 4 As shown, similar to Embodiment 1, the difference is that the plurality of ring-shaped permanent magnets are arranged concentrically, and the plurality of ring-shaped permanent magnets can be nested with each other when they are between the first sealing door and the bottom of the cylindrical housing. The pie-shaped arrangement can also save the conical cooling seat, which can further reduce the necessary volume of the first annular permanent magnet conveying device or the second annular permanent magnet conveying device, but the result of this setting is that the cooling area is reduced, and more cooling is required. It takes a long time to cool the annular permanent magnet, so it is best to use spray cooling.

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Abstract

The invention relates to a heat treatment furnace and a preparation process for producing high-strength metal rods by using the heat treatment furnace. The ring-shaped permanent magnet is circulated between the first ring-shaped permanent magnet conveying device and the second ring-shaped permanent magnet conveying device. The change of the magnetic field can be realized by the movement of the magnetic field, and the magnetic normalizing can be realized at a lower cost. The magnetic field strength is large, and the magnetic normalizing effect is good; The ring-shaped permanent magnet passes through the heat treatment furnace, the distance between the ring-shaped permanent magnet and the normalizing part is greatly reduced, and the magnetic field strength that can affect the normalizing part is also much larger, which reduces energy consumption and enhances the magnetic properties. Normalizing effect.

Description

technical field [0001] The invention belongs to the technical field of metal processing, and in particular relates to a preparation process of high-strength metal rods and a heat treatment furnace used in the processing. Background technique [0002] The application of magnetic fields in metal processing has become more and more; for example, magnetic annealing can effectively eliminate internal stress, locally induced anisotropy, etc., and form induced uniaxial magnetic anisotropy, so that inorganic (metal) materials Static magnetism has been improved. Magnetic annealing usually places a huge strong magnet symmetrically on the annealing furnace, so that it is easier to provide a stable magnetic field. Due to the annealing furnace, the strong magnet is far away from the annealing piece, and a strong magnetic field is needed to complete the magnetic annealing. [0003] And the research on magnetic normalizing has also been deepened more and more deeply: Sun Zhongji publishe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21D9/00C21D1/28C21D1/04
CPCC21D9/0018C21D9/0075C21D1/04C21D1/28C21D9/0062
Inventor 陈红卫胡爱民胡锦梅张建国刘冬冬王恩瑞
Owner 良启金属南通有限公司