Equipment wear and tear is a problem that all factories need to face, and the quality of the anti-wear treatment of the equipment will directly affect the production efficiency and personnel safety of the company. Types of equipment wear, analysis of factors affecting equipment wear and selection of anti-wear materials, etc.
Definition of wear type: Abrasive wear (also known as abrasive wear or sliding wear) refers to the friction caused by the extrusion of hard particles or hard asperities on the surface of the friction pair to the solid surface and the relative movement along the surface. A very common form of wear and tear due to loss or loss of material;
Impact wear: refers to the phenomenon that the material hits the surface of the material with a certain speed under the action of gravity or centrifugal force, resulting in local material loss or peeling;
Corrosion wear: During the friction process, the metal reacts chemically or electrochemically with the surrounding medium at the same time, causing corrosion and wear to work together to cause the loss of surface materials of parts. This phenomenon is called corrosion wear.
Factors affecting equipment wear:
The wall thickness of the worn part of the equipment is the main influencing factor. The thicker the wall thickness, the harder it is to wear;
The type and hardness of the material, in general, the wear intensity of solid is greater than that of liquid and gas, the greater the hardness, the greater the wear intensity;
The sharper the shape of the material, the easier it is to wear the surface of the equipment;
Whether the material is chemically aggressive;
External environmental humidity, flow rate, drop height, etc.;
Selection of anti-wear materials:
Selection of anti-wear materials:
The cost-effective wear-resistant material-alumina wear-resistant ceramics
Wear-resistant material suitable for very severely worn parts - ZTA zirconia ceramics
The high hardness of ceramics and the high toughness of steel are fully combined, suitable for parts with large impact wear-alloy ceramics
Wear-resistant ceramic material is suitable for anti-wear in high-temperature environments - high-temperature ceramic.
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