Temperature controlling system of holding furnace capable of continuously preparing aluminum alloy semi-solid state sizing agent

Abstract

The invention provides a temperature controlling system of a holding furnace capable of continuously preparing an aluminum alloy semi-solid state sizing agent. The temperature controlling system includes a furnace temperature controlling system, a heating system includes a heater, a controller and a power source, the controller is connected with the power source, and meanwhile the controller is connected with the heater to control the temperature of the heater; and the heater is composed of at least two heating elements, the heating elements are sequentially distributed from the top to the bottom in the vertical direction, the heating elements are correspondingly provided with thermocouples which are connected with the controller, and the controller performs PID regulation to the heating elements to enable the heating elements to be correspondingly heated to different setting temperatures. According to the temperature controlling system of the holding furnace capable of continuously preparing the aluminum alloy semi-solid state sizing agent, the multiple normal thermocouples are arranged at the center portions of the multiple heaters, the temperature controlling systems of the three heaters perform PID regulation according to the different setting temperatures, a water-supplying valve of cooling water is composed of a plurality of magnetic valves which are connected in paralleland provides various nonzero flows for a water-cooling ring, and the cooling accuracy for aluminum water is further improved.

Description

technical field [0001] The invention belongs to the technical field of light alloy semi-solid forming. Background technique [0002] The semi-solid slurry is vigorously stirred during the solidification process of the metal to break the dendrites, and a solid-liquid mixed slurry that uniformly suspends some spherical solid phase particles is obtained. It has good fluidity and can be used in high pressure casting and squeeze casting. When filling, the gas is not easy to get involved, its forming temperature is low, the mold life is long, the deformation resistance is small, and the production efficiency is high; when forming, high pressure is applied to cause plastic deformation of the solidified metal, and the unsolidified metal continues to solidify under high pressure. The parts have less shrinkage cavity and shrinkage porosity, compact structure, higher mechanical properties than ordinary castings and close to forgings, can be heat treated, no riser feeding, and high met...

AI Technical Summary

Problems solved by technology

[0003] Although the castings produced by semi-solid forming technology have many advantages, and there are many slurry preparation methods, the continuous preparation, storage and transportation of low-cost and high-quality slurry has always been a problem, which seriously restricts the promotion and application of this technology.

The existing holding furnace for semi-solid slurry preparation has poor temperature control effect, resulting in unstable solid-phase ratio of semi-solid slurry, which ultimately affects the quality of castings

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