Steel grit is a kind of product that can be used as abrasive and counterweight. When it is worn, it is different according to its shape and size. What is the big change?You can see this from the following passage.

The size, shape and orientation of steel sand have great influence on abrasive wear.They affect the load and stress from the elastic contact to the plastic contact and cause the critical fracture indentation size and groove size change.

As you can see, if the load and hardness are constant, the contact area is also a constant, depending on the size and shape of the abrasive.When the top Angle of the pyramid, the top Angle of the cone and the radius of the sphere decrease, the value of D /A increases.The.4/4 value of a sphere is usually smaller than that of a cone or cone, so the wear rate of a sharp abrasive particle is higher than that of a blunt abrasive particle, especially since the pressing depth of a cone, f, is larger and tends to exceed t.(critical indentation depth), causing the occurrence and propagation of cracks.

It seems very difficult to calculate the wear rate quantitatively according to the size and shape of the abrasive under actual working conditions, although it is being explored at present.Because the size of the abrasive in any environment is always within a certain range, size, shape and orientation are not uniform, and in the wear process abrasive and tablet crack, and abrasive contact area is usually only 10~ 3O % of the total area of performance.The wear rate not only depends on the size, shape and orientation of the abrasive, but also depends on the performance and friction coefficient of the surface of the material.Some researchers have proposed a model to express the wear amount in terms of energy.The abrasive wear coefficient of the material can be expressed in the following formula.

Feng erda is the profissional manufacturer of metal abrasive.In order to meet the needs of customers, we provide various types of steel grit ，high carbon angular steel grit and bearing steel grit.