1. After quenching, the hardness of the coating at the general RC ≤ 43, no coating at the part of the RC ≥ 60.

2. Thermal stability is good, more than 900 ℃ for 6 hours to heat up the coating is complete and does not flow.

3. Metallographic examination without the presence of osmosis, the surface organization of quartzite plus a small amount of ferrite.

Second, the use of

This coating consists of solid material powder and mixing agent, according to 1:0.3 equipped.

Before using the powder with a liquid mixing agent into a thin paste, the workpiece can be cleaned directly after the brush coating, coating thickness of 0.3-0.9mm, generally 0.6mm is appropriate; drying can be used in the furnace, the fine threads and other easy-to-stick coatings should be used to brush the first 0.2mm thick refractory clay (clay requirements of 180 mesh or more than 25% of the alcohol mixing into a thin paste) after cooling, then coated with the coating, and then the coating, and then the coating. Then apply the coating. The workpiece treated with this coating can be quenched or air-cooled directly after discharge.

Northern Heat Treatment Materials Technology Co.