knife processing:
1 Water, raw powder milling balls are fed into a mixer-like device called a mill.

2 To create particles of uniform size, with diameters of approximately one micrometer (1 µm or 0.001 mm), raw materials are first mixed into a slurry - a fluid of water and ceramic powder in which the particles are blended.

3 A spray dryer dehydrates the raw materials in the slurry to make a granulated powder

4 The granulated powder is used to fill a knife-shaped mold.

5 Dry Press Process: The mold is placed under high pressure - 1 ton per cm2 (approx. 12,800 psi) - to solidify the powder into the desired shape.

6 Sintering Process: The material is then fired and sintered in a kiln, like conventional ceramics, but under precisely controlled temperatures. (1400°C for 48 hours)

7 Surface Grinding:During the firing process, the ceramic blade shrinks to 75% of its original, unfired size, while the volume shrinks by nearly half. These shrinkage rates are carefully calculated during the design process, so the finished size matches the design specifications.

8 Big & Small Edge Sharpening: The blade is then ground with a diamond wheel to produce a razor-sharp edge.

9 Inspection of sharpness.

10 Assembling & Packing:A handle is then attached to complete the process.