Microwave Drying Equipment for Casting Sand Mold to Solve the Problem of Local High Temperature Fracture of Sand Mold

- May 03, 2019 -

Foundry sand mould microwave drying equipment has the characteristics of high heat utilization rate, stable and uniform temperature, large batch production, high automation, small floor area and low energy consumption. Principle of Microwave Dryer for Sand Core of Casting Sand Mold: Microwave is a form of energy, which can be converted into heat in the medium. When the material that can absorb microwave energy is placed in the high frequency alternating electric field, the ions in the material will change direction repeatedly, which will aggravate the collision and produce heat dissipation (or Joule heat). Therefore, microwave drying is a kind of dielectric drying. In the process of dielectric drying, heat is generated inside the material, and the driving force of mass transfer is mainly the vapor pressure gradient rapidly generated inside the material.

Sand mould drying equipment mainly uses magnetron attached to the high-power microwave heating chamber for heating, and uses high-power axial-flow fan for humidity evacuation. During the whole heating process, temperature and humidity have a great influence on the heating effect. It is very important to control the existence of temperature and humidity in the cavity with the optimal control method. Compared with ordinary electric meter drying kiln, the drying efficiency is higher, the drying speed is faster, the surface of the sand mold after drying is uniform, no bubbles, and the surface temperature returns quickly after discharging.

Casting Sand Mould Drying Equipment is an industrial-grade high-efficiency heating technology equipment. In the casting process, the sand mould must be dried by fast and efficient heating equipment after flow coating. The traditional method is to use electric meter dry kiln. This method consumes a lot of energy, and it is difficult to achieve uniform drying of sand mold surface. The local temperature of sand mold surface may be too high after discharge, which may lead to fracture of sand mold and even cause personal injury to operators. Microwave drying equipment for casting sand mould can solve the problem of local high temperature fracture of sand mould, and provide various types of microwave drying equipment selection scheme and budget quotation. This article is from the microwave drying equipment () network.

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