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Uniform heating apparatus and method for large-sized metal blank

A technology of uniform heating and metal billet, which is applied in the field of uniform heating device for large-sized metal billets, can solve the problems of uneven heating of billet surface, uneven temperature difference of billet, difficult control, etc. The effect of compact structure and safe operation

Active Publication Date: 2013-12-04
有研金属复材技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In fact, the uniform heating control of large-sized metal blanks is very important to the stability of the blank structure and the efficiency of industrial continuous production. It is difficult to control the heating accuracy of large-sized metal blanks during the heating process. Uneven, easy to flow soup, and at the same time, it is easy to produce "elephant foot" phenomenon in the later stage of heating, which brings many problems to the subsequent blank transfer, docking and forming process

Method used

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  • Uniform heating apparatus and method for large-sized metal blank
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  • Uniform heating apparatus and method for large-sized metal blank

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Embodiment 1

[0046] like figure 1 Shown is a uniform heating device for large-sized metal billets, which is mainly composed of three parts: induction heating mechanism, billet transfer mechanism and air cooling mechanism. The induction heating mechanism is composed of a single induction heating coil 2. The induction heating coil is placed vertically. The heating coil is made of a 15×15mm square copper tube with cooling water inside. The inner diameter of the coil is 280mm, and the coil height is 380mm. The induction heating power supply adopts IGBT power supply, and the power supply frequency is 1000Hz.

[0047] The transfer mechanism is composed of a cylinder 10, an insulating rod 9, a blank supporting plate 8 and an asbestos gasket 7. The blank is placed on the blank supporting plate 8 with the asbestos gasket 7, and is mainly driven by the up and down movement of the cylinder 10.

[0048] The air-cooled structure is mainly composed of a radially movable air-cooled coil 1 , a radially ...

Embodiment 2

[0052] like figure 1 Shown is a uniform heating device for large-sized metal billets, which is mainly composed of three parts: induction heating mechanism, billet transfer mechanism and air cooling mechanism. The induction heating mechanism is composed of a single induction heating coil 2. The induction heating coil is placed vertically. The heating coil is made of a 15×15mm square copper tube, and the cooling water is passed inside. The inner diameter of the coil is 350mm, and the coil height is 400mm. The induction heating power supply adopts silicon controlled rectifier power supply, and the power supply frequency is 1000Hz.

[0053] The transfer mechanism is composed of a cylinder 10, an insulating rod 9, a blank supporting plate 8 and an asbestos gasket 7. The blank is placed on the blank supporting plate 8 with the asbestos gasket 7, and is mainly driven by the up and down movement of the cylinder 10.

[0054] The air-cooled structure is mainly composed of a radially m...

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Abstract

The invention relates to a uniform heating apparatus for large-sized metal blank and a uniform heating method for large-sized metal blank and belongs to the metal material processing technical field. The apparatus is mainly composed of an induction heating mechanism, an air cooling mechanism and a blank transport mechanism, wherein the induction heating mechanism is an electromagnetic induction heating coil which is vertically arranged, the air cooling mechanism is composed of air cooling coils which are mounted at the periphery of the electromagnetic induction heating coil, and the blank transport mechanism is used for transporting the metal blank. The device and method of the invention are suitable for rapid and uniform heating of the large-sized metal blank, and can assist in avoiding the growth and coarsening of grains in heating and preventing the formation of outward-protruding / inward-recessed structures and collapse in a delivery transfer process; and the device and method of the invention can facilitate the delivery, butt joint and formation of the blank, and can satisfy a requirement of the large-sized metal blank for quickness in heating and uniformity in temperature, and are suitable for being used in thermoforming of metal materials; and at the same time, the device and method of the invention have the advantages of safe operation, compact structure, stable operation and easiness in automatic control.

Description

technical field [0001] The invention belongs to the technical field of metal material processing, and in particular relates to a uniform heating device and method for a large-size metal blank. Background technique [0002] The processing and forming technologies of metal materials mainly include forging, casting and emerging semi-solid forming technologies. The uniform heating of metal blanks is an important link in the hot forming process of metal blanks. Inaccurate temperature control and uneven temperature field will have a great impact on the subsequent forming process, the structure and performance of the workpiece. Therefore, the heating of the metal blank requires a high precision of the heating temperature control of the blank. At the same time, the heating of the blank is also required to have a certain speed to prevent the grain growth and coarsening during the heating process, and the heating time should not be too long. At the same time, in order to meet the req...

Claims

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Application Information

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IPC IPC(8): H05B6/10
Inventor 李豹张志峰徐骏刘建朝刘国钧
Owner 有研金属复材技术有限公司