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Rectangular induction coil of tungsten-molybdenum sintering furnace

An induction coil, rectangular technology, applied in the field of rectangular induction coils, can solve the problems of low efficiency, low space utilization rate of circular coils, high energy consumption, etc., to improve product quality, reduce straightening and leveling processes, and reduce energy consumption Effect

Pending Publication Date: 2020-01-17
西安成航炉业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the problems of low space utilization rate of existing circular coils, high energy consumption and low efficiency during use, the invention provides a rectangular induction coil for a tungsten-molybdenum sintering furnace. The rectangular induction coil provided by the invention can increase the Utilization rate, low energy consumption, large production capacity

Method used

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  • Rectangular induction coil of tungsten-molybdenum sintering furnace
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  • Rectangular induction coil of tungsten-molybdenum sintering furnace

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Embodiment 1

[0024] In order to overcome the problems of low space utilization rate of existing circular coils, large energy consumption and low efficiency during use, the present invention provides such Figure 1-7 Shown is a rectangular induction coil of a tungsten-molybdenum sintering furnace. The rectangular induction coil provided by the present invention can increase the utilization rate of the furnace, and has less energy consumption and greater production capacity.

[0025] A rectangular induction coil for a tungsten-molybdenum sintering furnace, comprising a copper tube 1 and a bakelite column 2, the copper tube 1 and the bakelite column 2 form a rectangular induction coil, the inner size of the rectangular induction coil is 4910×1290 mm, and the copper tube 1 Wound into a coil shape through the mold, the coil turn spacing 4 between the coils is 15-50mm; the bakelite column 2 is evenly distributed in the vertical direction on the outer surface of the copper tube 1, and the bakelite...

Embodiment 2

[0040] Based on Example 1, in this example, the pitch of the bakelite columns 2 is 240-560mm.

[0041] Cooling water passes through the copper tube 1 .

[0042] The cooling water quality requirements: water inlet temperature ≤ 25±5°C, pH value between 6-9, resistivity 30×10³Ω.cm, hardness not greater than 10 degrees, wherein 1 liter of water contains 10 mg of oxidation Calcium, the total solid content does not exceed 250mg / L, and the outlet water temperature should be controlled below 45 degrees Celsius.

[0043] The four corners around the rectangular induction coil are rounded.

[0044] The inner dimension of the rectangular induction coil provided by the present invention is 4910×1290 mm, and is composed of a copper pipe 1 and a bakelite column 2 . Copper pipe 1 passes a special mold to make the section into Figure 7 The copper tubing shown is wound into Figure 4 coil shape shown, and guarantees that during winding, Figure 7 The copper tube 1 shown is not deformed. ...

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Abstract

The invention provides a rectangular induction coil of a tungsten-molybdenum sintering furnace. The induction coil comprises a copper pipe and bakelite stand columns, the copper pipe and the bakelitestand columns form the rectangular induction coil, and the inner size of the rectangular induction coil is 4910 * 1290 mm. The copper pipe is wound into a coil shape through a mold, and the coil turninterval between the coils is 15-50 mm. The bakelite stand columns are evenly distributed on the outer surface of the copper pipe in a vertical direction, and the bakelite stand columns are connectedwith the copper pipe studs. The outer surface of the copper pipe is connected with an extraction electrode, and the wall thickness of the copper pipe is 1.2-1.57 times of the current penetration depth. After a circular induction coil is changed into the rectangular induction coil, a sintered tungsten-molybdenum product can be flatly placed on a discharging bottom support, the bending deformation of a sintered material is improved to the maximum extent, a straightening and leveling process of the tungsten-molybdenum product is greatly reduced, and the product quality is improved. The rectangular induction coil provided by the invention can increase the utilization rate of a hearth, the energy consumption is small, and the productivity is high.

Description

technical field [0001] The invention belongs to the field of tungsten and molybdenum processing equipment, in particular to a rectangular induction coil of a tungsten and molybdenum sintering furnace. Background technique [0002] Medium frequency induction sintering furnace is an important equipment widely used in special metal processing industries such as tungsten and molybdenum. Induction heating is one of the good forms of electric heating. It uses Faraday's electromagnetic induction principle to convert electrical energy into heat energy, so that the three-phase power supply becomes intermediate frequency alternating current through the intermediate frequency induction power supply. When the alternating current passes through the induction coil, it is An alternating induction magnetic field is generated, that is to say an alternating magnetic flux Φ whose magnitude and direction change with time is generated. When a piece of conductive metal (that is, tungsten, molybd...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B6/36
CPCH05B6/36
Inventor 赵敏严磊但振坤冯小军
Owner 西安成航炉业有限公司
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