A liquid metal temperature control vacuum induction melting device and temperature control method

A vacuum induction smelting and liquid metal technology, which is applied to furnaces, furnace types, lighting and heating equipment, etc., can solve problems such as inaccurate temperature control, and achieve the effects of reasonable structural design and low replacement and maintenance costs

Active Publication Date: 2022-04-01
威镝精工科技(苏州)有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problem of inaccurate temperature control in induction smelting, the present invention proposes a liquid metal temperature-controlled vacuum induction smelting device. The present invention encapsulates the liquid metal in the liquid metal cavity, and the liquid metal is used as a temperature control element, and the induction coil generates current to make the The liquid metal in the liquid metal cavity is heated, and the liquid metal generates eddy currents in a circulating flow state, and the liquid metal remains liquid at 10-2200 ° C. The heat quickly makes the entire liquid metal cavity at a uniform and stable temperature in the form of thermal convection, and Accurately control the induction heating temperature through the temperature sensor to improve the uniformity of the metal smelting process

Method used

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  • A liquid metal temperature control vacuum induction melting device and temperature control method

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Effect test

Embodiment 1

[0033] Embodiment 1: as figure 1 As shown, a liquid metal temperature-controlled vacuum induction smelting device includes a smelting box 2 and a smelting container 16, the smelting container 16 is arranged in the center of the heat preservation chamber 4 of the smelting box 2, and the inner wall of the smelting box 2 is provided with a liquid The metal chamber 6, the liquid metal chamber 6 is filled with liquid metal 13, the outer wall of the smelting box 2 is covered with an induction coil 3, the bottom of the smelting box 2 is provided with a temperature sensor 15, the probe of the temperature sensor 15 is connected to the liquid metal The liquid metal 13 in the metal cavity 6 is in contact, the temperature sensor 15 is externally connected to a temperature controller, and the temperature controller is connected to the induction coil 3;

[0034] The inner wall of the thermal insulation cavity 4 is provided with an thermal insulation layer 5 bonded to the liquid metal cavity...

Embodiment 2

[0052] Embodiment 2: The temperature-controlled vacuum induction smelting device for liquid metal in this embodiment is basically the same as the temperature-controlled vacuum induction smelting device for liquid metal in Embodiment 1, except that the ceramic sealing gasket is silicon nitride sealing gasket or boronized Zirconium sealing gasket, the insulation layer is asbestos net, and the flange is fixedly connected with the cover plate through bolts 14.

Embodiment 3

[0053] Embodiment 3: In this embodiment, the liquid metal temperature-controlled vacuum induction melting device of Embodiment 2 is used to melt magnesium and aluminum alloys. The specific steps are as follows:

[0054] (1) The raw materials Mg, Al, Zn and Mn are respectively weighed according to the mass percentage content of Mg 88%, Al 10%, Zn 1.5% and Mn 0.5%, and then placed in a melting vessel (quartz crucible), and the melting vessel (quartz crucible) is placed in the center of the heat preservation cavity, and the quartz cover plate is connected with the quartz melting box through a flange connection, and the silicon nitride sealing gasket seals the device; the air inside the heat preservation cavity is extracted by a vacuum pump, so that The insulation cavity reaches a vacuum state;

[0055] The temperature controller controls the induction coil to heat the outer wall of the smelting box, and the outer wall of the smelting box conducts heat to the liquid metal Ga in th...

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Abstract

The invention relates to a temperature-controlled vacuum induction smelting device and a temperature control method for liquid metal, belonging to the technical field of smelting. The device includes a smelting box and a smelting container. The smelting container is set in the center of the heat preservation cavity of the smelting box. The inner wall of the smelting box is provided with a liquid metal cavity filled with liquid metal. The outer wall of the smelting box is The coating is provided with an induction coil, the bottom of the smelting box is provided with a temperature sensor, the probe of the temperature sensor is in contact with the liquid metal in the liquid metal chamber, the temperature sensor is externally connected to a temperature controller, and the temperature controller is connected to the induction coil. In the present invention, the liquid metal is used as a temperature control element, and the induction coil generates current to heat the liquid metal in the liquid metal chamber, and the liquid metal generates eddy currents in a circulating flow state, and the heat rapidly makes the temperature of the entire liquid metal chamber uniform and stable through thermal convection , the temperature is accurately controlled by the temperature sensor, and the uniformity of the metal smelting process is improved; the liquid metal is used as the heat source of the heat preservation cavity, and the temperature of the heat preservation cavity reaches the temperature of the liquid metal through heat radiation.

Description

technical field [0001] The invention relates to a liquid metal temperature-controlled vacuum induction smelting device and a temperature-controlling method, belonging to the technical field of smelting preparation. Background technique [0002] Induction smelting technology is one of the most widely used metal smelting technologies in the field of metallurgy. The principle is to put the metal material into the crucible, and the induction coil surrounds the crucible. When the current flows through the induction coil, the induced current will generate eddy current inside the metal charge in the crucible, and the metal has resistance to generate Joule heat. When the heat increases to a certain extent, the metal will melt from solid to liquid to achieve the purpose of smelting. In addition, the liquid metal in the crucible is interacted by electromagnetic force, which can automatically achieve stirring to make the composition more uniform. [0003] However, due to the relative...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F27B14/04F27B14/06F27B14/08F27B14/14F27B14/20
CPCF27B14/061F27B14/20F27B14/08F27B14/14F27B14/04F27B2014/045
Inventor 王恺钊胡劲陈天友王玉天
Owner 威镝精工科技(苏州)有限责任公司
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