Abstract
In this paper efforts have been made to explain the manufacturing method of Manganese-Zinc (Mn-Zn) soft ferrites in detail along with its uses and applications. The same method is applicable to Nickel-Zinc (Ni-Zn) and Lithium Titanium (Li-Ti or Microwave) ferrites also. A process flow chart is shown. The manufacturing steps like-mixing of powders, calcination of powder, grinding of powder, granules making, pressing of components, sintering in tunnel kiln or box furnace and machining on rotary table grinding machine, have been explained. Effect of atmosphere (oxygen), when the components are sintered at high temperature, is discussed. The temperature profiles of muffle furnace and tunnel kilns have also been discussed. The variation in temperature within the muffle furnace (900×900×800 mm) has been studied with the help of a sliding thermocouple. Temperature gradient within the furnace volume has been plotted on graph. A mathematical relation has been found using curve fitting equation. Actual and mathematical results have been compared.
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