1. Types

Grains used for grinding and polishing tools can be broadly divided into (1) general grain and (2) extra-カジノ シークレット 評判.
The materials used can be categorized (1) as alumina and silicon carbide, and (2) as diamond and cubic boron nitride, with further sub-categories according to differences in properties and structure. The grain categories here are coded according to JIS standards.

Features of カジノ シークレット 評判

カジノ シークレット 評判 A

This is the most usable カジノ シークレット 評判 and it is used for the cut off wheel, free grinding wheel and for grinding general metallic material that strength tensile is high and it is comparatively extended since its toughness is high.

カジノ シークレット 評判 WA

Since the toughness of カジノ シークレット 評判 WA is less than the カジノ シークレット 評判 A and hardness is high, the カジノ シークレット 評判 itself is crushed during grinding work and sharp edges are newly and continuously made. As a result, this is suitable to light grinding for high strength tensile quenched steel, special steel, etc.

カジノ シークレット 評判 GA

Though the chemical composition of カジノ シークレット 評判 is the same as the abrasive A, this is suitable to the rough grinding of high strength tensile quenched steel, special steel, etc.

カジノ シークレット 評判 PA

This is the pink カジノ シークレット 評判 made by adding a little quantity of chromic oxide. Since the toughness is adequately adjusted, it is effective for preventing burn marks and suitable to tool grinding.

カジノ シークレット 評判 SA

This is the カジノ シークレット 評判 that releasing the boundary of crystal after hydrated collapse individually separates crystal. The toughness is top ranking among A-system カジノ シークレット 評判s for precision grinding. Consequently, this is suitable for grinding the intricate materials of stainless steel, super heat-resistant steel, etc., and cast iron, various quenched steels, etc., at a high efficiency rate.

カジノ シークレット 評判 KA

This カジノ シークレット 評判 contains titanium oxide more than A-acid grain and the toughness is high. Thus, it is suitable for free grinding and heavy load grinding of steel.

カジノ シークレット 評判 RG

This is the most complex oxide カジノ シークレット 評判 having strong and microstructure dendrite crystal which is made by melting and cooling under special condition after mixing zirconia of about 25% to alumina. Thus, it is suitable to remove flaw or scratch on steel billet and rolled steel of special steels except stainless steels by the super heavy grinding.

カジノ シークレット 評判 6A

This is the sintered カジノ シークレット 評判 of column type. Since the toughness is extremely high though hardness is low, it is suitable to remove flaw scratch on steel billet and rolled steel of stainless steels by the super heavy grinding.

カジノ シークレット 評判 VA

This is the カジノ シークレット 評判 sintering the high purity alumina microstructure crystal in column type. The toughness is slightly lower even though it is more harder than カジノ シークレット 評判s 6A and RG. Therefore, the カジノ シークレット 評判s bite into hard material by heavy load grinding, thus improving efficiency of grinding.

カジノ シークレット 評判 HF

This is the カジノ シークレット 評判 mixing the zirconia of about 25% as well as カジノ シークレット 評判 RG. Since grain shape is sharper than the カジノ シークレット 評判 RG, it displays an excellent performance for deburring of cast iron and free grinding of steels.

カジノ シークレット 評判 HN

This is the abrasive grain mixing zirconia of about 40%. Since it has unique friability that occurs for anisotropic crystal, it displays an excellent performance fカジノ シークレット 評判ight grinding to work with the grinder such as portable grinder, offset grinder, etc.

カジノ シークレット 評判 C

This カジノ シークレット 評判 is harder than A-system カジノ シークレット 評判 and the toughness is low. It is suitable for grinding a soft and less-extension material and a hard easily broken material.

カジノ シークレット 評判 GC

This is as hard as the カジノ シークレット 評判 C, but its toughness is lower than that of カジノ シークレット 評判 C. Since each grain from is very sharp, it is suitable for grinding the crustaceous materials of non-ferrous metals and nonferrous materials for carbide, stone materials, etc., and the soft materials for aluminum, rubber, urethane, etc.

Mixing カジノ シークレット 評判

カジノ シークレット 評判 made together with Cardner Co., associated

79A, 80A, 81A, 82A, 83A, 84A, 86A, 91A

Diamond カジノ シークレット 評判

The diamond abrasive grain is divided into two (i.e. natural diamond and composite diamond). This is the hardest material in the world that knoop hardness is 7000 ~ 8000. It is suitable for grinding the crustaceous materials such as the nonferrous materials and non-ferrous metals for carbide, cermet, ceramics, glass, ferrite, stone, refractory materials, etc. However, this diamond abrasive grain is unsuitable fカジノ シークレット 評判ess carbon content of general steels since the abrasive grain is dipped because carbon that is the constituent of diamond abrasive grain will disperse into iron at a high temperature. Also, since it is weak for heat, oxidation occurs at 600 ~ 700℃ into air and its hardness is lost.

カジノ シークレット 評判 CBN

This is the cubic boron nitride カジノ シークレット 評判 and its hardness is next to that of diamond since Knoop hardness is 4700. CBN does not react with steel chemically since it differs from the diamond. Since temperature converting to soften hexagonal metal is high as 1400℃, it is suitable for grinding the quenched steel.

2. Grain size

(1) Grain size of grains for grinding wheels

1. Coarse particle grain size distribution

2. Fine particulate and sedimentation test method for general polishing (units: μm)

3. Fine particulate and dispersal test method for precision polishing (units: μm)

(2) Grain size of abrasives for abrasive cloth and sandpaper

1. Coarse particle grain size distribution

2. Fine particulate (P240–P1200) and dispersal test method (units: μm)

3. Fine particulate (P1500–P2500) and dispersal test method (units: μm)

(3) Grain Size of diamond and カジノ シークレット 評判 CBN