Introduction to ion nitriding process for repairing alumina ceramics After repair and re ion nitriding, alumina ceramics can be put into use, greatly improving the service life of alumina ceramic stru

Introduction to ion nitriding process for repairing alumina ceramics

Ion nitriding of alumina ceramic structural components is one of the strengthening treatment processes, which can improve the corrosion resistance, wear resistance, thermal fatigue resistance, and adhesion resistance of the mold. After repair and re ion nitriding, alumina ceramics can be put into use, greatly improving the service life of alumina ceramic structural components.

The outstanding advantages of ion nitriding of alumina ceramics are that it significantly shortens the nitriding time, can control the nitriding layer structure of alumina ceramic structural parts through the adjustment of different gas components, reduces the surface brittleness of the nitriding layer, has small deformation, has a relatively stable hardness distribution curve, is not prone to spalling and thermal fatigue, and the permeable base material is wider than gas nitriding, non-toxic, does not explode, and is safe in production.

The appropriate temperature for ion nitriding of alumina ceramics should be controlled between 450~520 ℃. After 6~9 hours of treatment, the nitriding layer depth of alumina ceramic structural components is about 0.2~0.3mm. If the temperature is too low, the nitriding layer is too thin; If the temperature is too high, a loose layer may appear on the surface, reducing the ability to resist mold sticking. The appropriate thickness of the nitriding layer for ion nitriding is 0.2~0.3mm, and the worn aluminum oxide ceramic structural component mold.

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