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Use of steel sand as abrasive and counterweight to use wear degree

2020-04-27 16:23:49 administrator 0

  Steel sand is a kind of product that can be used as abrasive and counterweight. It varies according to shape and size when it is worn. What is the big change? You can see this in the following article.

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

  On the other hand, if the load and hardness are constant, the contact area is also 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 value of.4/4 of a sphere is usually smaller than that of a pyramid or cone, so the wear rate of a sharp abrasive particle is higher than that of a round blunt abrasive particle, especially since the cone has a larger depth f, which tends to exceed t. (critical indentation depth), causing the initiation and propagation of cracks.

  It is difficult to calculate the wear rate quantitatively according to the size and shape of the abrasive under actual working conditions, although it is still being explored. Because in any environment the size of the abrasive is always in a certain range, size, shape and orientation are not uniform, and in the wear process of the abrasive there are cracks, and the abrasive contact area is usually only 10 to 30 o% of the total area. The wear rate not only depends on the size, shape and orientation of the abrasive, but also on the properties of the material surface and the friction coefficient. Some researchers have proposed models that express wear in terms of energy. The abrasive wear coefficient of the material can be expressed in the following formula.

  This is the case with regard to the wear of steel sand as an abrasive and counterweight, and the root shape and size are related.