Finishing Of Alumina Ceramic Roller Surface Finish And Strengthening Of Its Mechanical Strength

Time:2018/5/24 17:23:56 Click on:

In order to improve the accuracy of the product, most of the alumina ceramic rollers need further finishing after the sintering process is completed, so as to achieve a higher surface finish. However, after all, alumina ceramic is not an ordinary material. How does it finish better?

 

Because of the better hardness of alumina ceramic rollers, it is necessary to finish it with harder polishing and polishing brick materials, such as SIC, B4C, or diamond drills; and in the course of finishing, alumina ceramic rollers must be improved in advance. Surface lubricity.

In the finishing of alumina ceramic rollers, the more common method is to grind progressively from coarse to fine abrasives, and then during surface polishing, polishing can be performed with Al2O3 or diamond paste less than 1 μm micron for polishing, of course, laser Machining and ultrasonic processing can also achieve the purpose of grinding and polishing alumina ceramic roller.

The above is for the purpose of improving the finishing of the alumina ceramic roller surface finish, and subsequently also for the enhancement of the mechanical strength of the alumina ceramic roller, namely the alumina ceramic strengthening technology. In fact, alumina ceramic roller are tempered by advanced processes such as electron beam vacuum coating, sputtering vacuum deposition or chemical vapor deposition.

In these methods, a layer of silicon compound film may be plated on the surface of the alumina ceramic, and the aluminum oxide ceramic may be tempered only by heat treatment at a temperature of 1200°C to 1580°C. The fact proves that the mechanical strength of the reinforced alumina ceramic roller can be greatly increased on the basis of the original, and the alumina ceramic roller with ultra-high strength are obtained.

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