Immersion type energy-saving aluminum alloy melt heater

Abstract

The invention provides an immersion type energy-saving aluminum alloy melt heater. The immersion type energy-saving aluminum alloy melt heater comprises a silicon nitride protection tube, a pluralityof heating wires, a plurality of metal wires, a thermocouple and heat-conducting insulating ceramic powder. The plurality of heating wires and the plurality of metal wires are sequentially arranged inthe silicon nitride protection tube along the axial direction and are respectively and uniformly arranged on the inner wall of the silicon nitride protection tube, and the plurality of heating wiresand the plurality of metal wires respectively form a heating section and a non-heating section; one end of each heating wire is connected with one end of a metal wire, so that the heating section andthe non-heating section are connected into a whole; the thermocouple is arranged at the central position in the silicon nitride protection tube along the axial direction, respectively penetrates through the heating section and the non-heating section and is used for measuring the heating temperature in the silicon nitride tube; gaps formed among the inner wall of the silicon nitride protection tube, the heating wires, the metal wires and the thermocouple are uniformly filled with the heat-conducting insulating ceramic powder, so that a solid shape is formed in the silicon nitride protection tube.

Description

technical field [0001] The invention relates to an independent or auxiliary heating or heat preservation device for an aluminum alloy melt used in the field of aluminum alloy die-casting, in particular to an immersion type energy-saving aluminum alloy melt heater. Background technique [0002] Aluminum alloy die castings are widely used in the fields of automobiles, electronics, aerospace, and daily livelihood. In the actual production process, the aluminum alloy melt required for the preparation of aluminum alloy castings by die casting equipment is provided by a holding furnace with a certain heat preservation capacity. Yes, because the holding furnace inevitably dissipates heat outward, so to heat or maintain the temperature of the aluminum alloy melt, it must be ensured that the input of external heat is greater than or equal to the heat dissipated from the inside. In order to ensure that the aluminum alloy melts To keep the body at an appropriate temperature without coo...

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Problems solved by technology

However, the above-mentioned patents have complex structures, and in the actual production process, there are disadvantages such as complex production process, high production difficulty, low yield rate, and high cost.

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