Material Differences

Thermal spray is a mechanically bonded coating that is melted and sprayed at a high velocity toward a workpiece's substrate. after application, the coating cools and shrinks around the substrate, which creates the adhesion. The typical thermal spray materials SLM applies are nickel-based alloys and 316 or 420 stainless steels. Thermal sprays are often used as an alternative to chromium plating because of their corrosion resistance. however, their composition is not the same as wrought material of the same type. Because molten metal is atomized during delivery to the substrate, some oxide is created. these oxidized bits can have a higher hardness rating than surrounding material. The coating also tends to be a bit porousits microstructure resembling that of cast iron.

Although thermal spray thickness is theoretically limitless, it commonly ranges from 0.005 to 0.2 inch for SLM's standard applications. The spray thickness depends on how many times the roll has been repaired. A roll can continue to be repaired as long as its substrate remains in good condition, which, according to Mr. Stricker, can extend service life to more than 20 years.

Applications of resin bond  for thermal spraying:

Roll grinding and grinding of thermal spray coatings ( including tungsten carbide, chrome carbide and chrome oxide ), ceramics, carbides, chilled iron composites and other hard-to-grind materials.

Thermal spray coating process:

Thermal Spray technologies includ Flame wire spray, Arc spray, Plasma spray, HVOF or HVAF, Detonation Spray, Cold spray.

Thermal spraying technology is widely used in aerospace, aviation, machinery, metallurgy, chemical, petroleum, coal, railway, textile and many other departments.

the CASES of RESIN BOND DIAMOND GRINDING WHEELS:

1. 36'' (D914.4 mm) Big resin diamond grinding wheel:

2.  30'' (D750 mm ) Resin diamond grinding wheel for thermal spraying coating 
3. 24'' ( D600mm)  Resin bond diamond grinding wheel 
4. 4'' (D100 mm) resin diamond grinding wheel