Yinglong (HeroHome) Superhard Materials Manufactory is a factory which has more than 40 years experience of producing CBN Grinding wheels. We have the full confidence that we can provide the best CBN for our customers. We will use the first class abrasive and bond, Choosing the most suitable grit, concentration and formula. Here I’d like to share you some technical information about CBN grinding Wheel.

 

CBN (Cubic Boron Nitride) is a kind of Abrasive. It is artificial abrasive made from water and its hardness just lower than diamond abrasive. So it is widely used in grinding industry. Abrasive and bond can be made a grinding wheel through pressed and sintering. CBN grinding wheel means this wheel is made by CBN abrasive.      

 

There are many factors affecting the use of grinding wheel. Main includes: abrasive quality, grit size, concentration, binding agent quality, etc.

 

1. Abrasive quality (CBN): Even though they're all CBN, they can be categorized into First class CBN, Second class CBN, Third class CBN, and so on. The higher the level, the better the particle performance, the more uniform Grain, the longer using life of the grinding wheel, the better the grinding effect. 

 

PS: The CBN also has a different kind. As some CBN features are harder but more brittle, some CBN sharp. Depending on the requirements of use, we will choose the appropriate CBN abrasive.

 

2. Grit size: For every Grinding, There is a range of granularity that can be applied to meet grinding requirements. In this range, the finer particles, the slower the efficiency, the better the finish, the longer life; the coarser the particles, the faster the efficiency, the less smooth, the shorter life (Other factors of grinding wheel remain unchanged).

 

3. Concentration: Concentration is the main factor affecting the grinding effect, Price, and using Life. When other conditions remain the same, Low concentration of grinding wheel refer to low cost, but short life; While, That doesn't mean that the higher the concentration is always better. If the concentration is too high, the abrasive is too much and the binding agent is not enough, Then the binding cannot stick to the abrasive(CBN), which will lead that when using grinding wheel, the abrasive will fall off, even it has not work yet.   

 

The Different combinations have the most appropriate concentration requirements:

For CBN and resin binding agents, General selection 75%-100% concentration;

For CBN and Metal Bond, general selection 75%-150% concentration;

For CBN and Vitrified Bond, general selection 200% concentration;

For Electroplating process CBN grinding wheel, 200% is the best concentration.

 

4. As we said about Bond, it is also very import for grinding wheel. Such as (Resin Bond, Vitrified Bond, Metal Bond, Electroplated. Different combinations have different properties suitable for different grinding situation. The same kind of bond can be divided into First class, Second Class…The higher the level, the better the performance. High - performance bond should ensure that it is firmly adhered to the abrasive to make it work and not to fall off easily; meanwhile, it also can ensure that in the current abrasive grit is going to be done, the remaining part can not be in function, it should timely falls off with this currently grit layer, revealing the next grit layer, and ensure it can be used again, needn’t be dressed by our hand.