A device for producing arc-shaped parts by uniform heating with microwave energy

Abstract

The invention discloses a device utilizing microwave energy for even heating and production of arc parts. The device comprises waveguide, wherein the waveguide is an arc groove, the cross section of the arc groove is rectangular, the waveguide is 25 cm wide and 12 cm high, a top plate in the waveguide is provided with an upper supporting frame, a bottom plate in the waveguide is provided with a lower supporting frame, the upper supporting frame and the lower supporting frame are respectively an arc block the same as the waveguide in bending direction, the thickness of the position, close to a microwave inlet of the waveguide, of each supporting frame is smaller than that of the position, close to a microwave outlet of the waveguide, of the supporting frame, a mold is installed in an arc cavity between the upper supporting frame and the lower supporting frame, the mold is also an arc block the same as the waveguide in bending direction, a to-be-machined material cavity the same as the waveguide in curve radian is arranged in the mold, and the two end faces of the mold are respectively provided with an arc wave guide block. The device can effectively solve the problem of attenuation of microwave energy of a traditional device, and is also suitable for manufacturing the arc parts.

Description

technical field [0001] The invention relates to a device for uniformly heating arc-shaped materials to be processed by using microwaves in a microwave manufacturing process. Background technique [0002] Chinese patent application number 201220349243.2 discloses a device for uniform heating using microwave energy, including a waveguide (1) and a mold (4), and upper and lower support frames are respectively fixed on the top and bottom plates in the waveguide (1) (2,3), the left and right side plates of the mold (4) are respectively provided with Mitsubishi cylindrical waveguide blocks (4a), and the middle part of the mold (4) is provided with a placement cavity (4b) for materials to be processed ), the upper and lower support frames (2,3) are wedge-shaped blocks, a wedge cavity is formed between the upper and lower support frames (2,3), and the mold (4) is a wedge cavity Wedge blocks of the same size, the mold (4) is installed in the wedge cavity between the upper and lower ...

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Problems solved by technology

[0003] But the above-mentioned device can only be applicable to the material to be processed as a rectangular material

When the material to be processed becomes an arc-shaped material, such as automobile shock-absorbing spring steel, uniform heating cannot be guaranteed with the above device, because the propagation characteristic of microwave energy is that the energy in the center is the largest and gradually decreases to both sides. Therefore, the arc-shaped parts Uniform heating is not obtained in the unit

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