The wheel uses a few basic properties you need to know.
polishing flap disc_grinding wheel
First, the material type: A, WA, SA, PA, GC, C
A ——Brown fused alumina abrasive, the color is brown, high hardness and toughness. It is suitable for grinding high tensile strength metals such as carbon steel, alloy steel, malleable iron, hard bronze and so on.
WA—White corundum abrasive, the color is white, the hardness is higher than that of brown corundum, the abrasive grain is easy to be broken, the edge is sharp, the cutting performance is good, and the grinding heat is small. Suitable for grinding and quenching steel, alloy steel, high speed steel, high carbon steel, thin wall parts, etc.
SA——Single crystal corundum abrasive, the color is light yellow. Compared with A and WA abrasives, it has high hardness and toughness. It is a single-particle spherical crystal with strong resistance to breakage. It is suitable for grinding high-toughness, high-hardness materials such as steel, high-vanadium high-speed steel and workpieces with easily deformed burns.
PA——Chromium corundum abrasive, the color is rose or purple, the cutting edge is sharp, the edge retention is good, and the durability is high. It is suitable for workpieces with low surface roughness values such as grinding tools, measuring tools, instruments and threads.
GC——Green silicon carbide abrasive, the color is green, high hardness, brittleness, sharp abrasive, and certain thermal conductivity. Suitable for grinding cast iron, brass, lead, zinc and rubber, leather, plastic, wood, ore.
C——Black silicon carbide abrasive, the color is grayish black, high hardness, brittleness, sharp abrasive grain and good thermal conductivity. Suitable for grinding hard and brittle materials such as hard alloys, optical glass, ceramics.
polishing flap disc_grinding wheel
Second, the grinding wheel granularity
← Rough...20#, 24#, 30#, ...180#, 220#, 240#,... Fine →
Third, the hardness of the grinding wheel
←Soft E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T Hard →
Fourth, the wheel mark
The grinding wheel is marked as: WA46L5V351A350×40×127
The meanings of each letter code and data represent the following:
-WA-46-L-5-V-35-1A-350×-40×-127
WA→ Abrasive material for grinding wheel
46→granule size
L→Wheel hardness
5→Wheel wheel organization number
V→ grinding wheel is made of ceramic grinding wheel
35→Wheel uses line speed of 35M/S
1A→Shape shape
350→wheel diameter size
40→Wheel thickness dimension
127→Wheel hole size