Full-automatic intelligent bell furnace

Abstract

The invention provides a full-automatic intelligent bell furnace. By providing a plurality of heating groups, 29 to 46 heating groups and 70 to 110 silicon carbon rods are preferably arranged, the height in a hearth of a main furnace body is 1.5-2.2 m, the conventional design method of a small hearth of an existing bell furnace is broken, the maximum loading of a furnace car is 3-8 t, the production efficiency is greatly improved, and the production cost is reduced; by using a negative pressure sintering forced air suction device to draw air through an induced draft fan to form a predeterminedvalue of negative pressure in the hearth, it is beneficial to discharge the water vapor, glue and impurities, removed during the ferrite sintering heating process, out of the furnace body in time; and meanwhile, a furnace car platform replaces conventional thick cotton felt with refractory bricks, so that a formed sintering fixing frame has better stability after being placed, the impurity inclusion phenomenon is not easy to occur, and the sintering precision of the product is improved.

Description

technical field [0001] The invention belongs to the field of ferrite sintering, in particular to a fully automatic intelligent bell furnace. Background technique [0002] Ferrite is a ferrimagnetic metal oxide. In terms of electrical properties, the resistivity of ferrite is much larger than that of elemental metal or alloy magnetic materials, and it also has higher dielectric properties. The magnetic properties of ferrites also show that they have high permeability at high frequencies. Therefore, ferrite has become a non-metallic magnetic material widely used in the field of high frequency weak current. Because the magnetic energy stored in the unit volume of ferrite is low, the saturation magnetic induction intensity Bs is also low, usually only 1 / 3 to 1 / 5 of pure iron, which limits its use in low-frequency strong electricity and high magnetic energy density that require higher magnetic energy density. Applications in high power fields. [0003] At present, the bell ja...

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Problems solved by technology

[0005] In order to solve the above-mentioned technical defects of the conventional bell jar furnace with small capacity, small loading capacity, long production cycle period and high production cost when large quantities of ferrite products need to be sintered, the present invention provides a fully automatic intelligent bell jar furnace, including Exhaust box, main furnace body, cooling device, furnace car, temperature control device, atmosphere control device, negative pressure sintering forced air extraction device, base platform, column; the bottom of the column is fixed and installed on the horizontal bottom surface by a fastening device , a base platform is installed on the top of the column; the lower end of the main furnace body is fixedly installed on the base platform, and the upper end is fixedly installed with an exhaust box, one end of the exhaust box is connected to one end of the condensing device, and the other end is connected to the main furnace body; The temperature control device and the atmosphere control device are fixedly installed on the main furnace body, and the furnace car is movably installed on the bottom of the main furnace body through slide rails; the negative pressure sintering forced air extraction device communicates with the inside of the main furnace body

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