Magnetic material sintering elevator furnace of optimization circulation system

Abstract

The invention discloses a magnetic material sintering elevator furnace of an optimization circulation system and belongs to production equipment of magnetic materials. The magnetic material sintering elevator furnace of the optimization circulation system mainly comprises a furnace body, wherein an elevator system is arranged at the bottom of the furnace body, a load bearing plate is arranged under the furnace body, and the elevator system controls the load bearing plate. The magnetic material sintering elevator furnace further comprises a cooling circulation system A which comprises a circulation fan A, and the circulation fan A is connected with a hearth through a ventilation pipe. Air boxes are arranged on the left and right sides of the furnace body, and the ventilation pipe is connected with the hearth through the air boxes. Three or more air outlet devices are arranged on two sides inside the hearth. Each air outlet device comprises an air outlet pipe, a cavity and a circulation air hole which are sequentially connected, wherein the air outlet pipe is connected with the corresponding air box, and the circulation air hole is connected with the inside of the hearth. The internal air circulation convection is good, temperature, furnace pressure and atmosphere are uniform, and the glue discharging effect at the low temperature stage is largely improved. The magnetic material sintering elevator furnace of the optimization circulation system is mainly used for producing magnetic materials.

Description

technical field [0001] The invention belongs to a production equipment of magnetic materials, and in particular relates to a bell furnace for firing magnetic materials with an optimized circulation system. Background technique [0002] Nitrogen protection electric firing kiln is the key equipment for the production of magnetic materials. During use, due to the inherent quality indicators of fired products (magnetic permeability, spectrum, impedance, Curie temperature, Q value, second peak value, winding ratio, etc.), appearance quality (cracking, deformation, size expansion and contraction, bright spots , polycrystalline, density and other firing defects) requirements, put forward higher requirements for firing equipment. Debinding is a key link in the firing process of magnetic kilns. Due to the large proportion of magnetic parts (generally 4.5g / cm 3 Above) In addition, individual varieties are large in size, and it is very difficult to remove glue. If the organic matter...

AI Technical Summary

Problems solved by technology

In the case of kiln in the prior art without pre-degumming, product defects often cause the internal quality and appearance quality of the product to fail to meet the expected goals. However, pre-degumming requires additional degumming furnaces, which increases the investment in equipment for the enterprise and the labor intensity of employees, reducing work efficiency and increasing the process flow

Secondly, due to the poor gas circulation and convection inside the kiln, the cooling speed of the kiln is slow, which often fails to meet the requirements for rapid cooling. A series of physical and chemical reactions produced by the magnetic parts during the cooling process do not meet the product performance requirements, making the product The internal quality of the product seriously falls short of the expected goal

Images