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Factors Affecting Wear Resistance of Grinding Wheels

Abrasion resistance refers to the ability of a material to resist mechanical wear. Wear is a common phenomenon in the industrial field and daily life. The causes of this phenomenon are many physical and chemical and mechanical aspects, mainly abrasive wear, adhesive wear, fatigue wear, corrosion and wear, which is a loss of materials and energy. important reason.

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  1. standard cut off wheel for metalHardness: The wear resistance of a metal material can be measured by the hardness of the material. This is mainly because the hardness of the material reflects the ability of the material to resist the intrusion of the material into the surface. The hardness of the material is shallower to the surface of the material, and the grinding volume produced by the cutting is small, that is, the wear is small and the wear resistance is high.
    2, the crystal structure of the mutual solubility: densely arranged hexagonal lattice metal material, even if the friction surface is very clean, the friction factor is still 0.2-0.4, the wear rate is also low.
  2. Temperature: The temperature is mainly to change the wear resistance of the metal material by the influence of hardness, crystal structure transformation, mutual solubility and increasing oxidation rate. The hardness of a metal generally decreases as the temperature rises, so the temperature increases and the wear rate increases.
  3. Plasticity and toughness: high plasticity and toughness indicate that the material can absorb large energy, cracks are not easy to form and enthalpy, and the material has large deformation ability, and it is not easy to form fatigue flaking, that is, good wear resistance.
  4. Strength: During the wear process, the metal matrix has high strength, can provide good support against the hard phase, and fully exerts the anti-wear hard phase resistance to wear, so that the wear-resistant material exhibits excellent wear resistance.
  5. Metallurgical defects such as inclusions: Metallurgical defects such as non-plastic inclusions in steel have a serious impact on fatigue wear.
  6. Surface roughness: Under the condition of a certain contact stress, the smaller the surface roughness value, the higher the anti-fatigue and wear resistance. When the surface roughness is small enough, the effect on fatigue wear resistance will be reduced.
    Considering the factors affecting the wear resistance of the grinding wheel from multiple angles to meet the need of material to reduce wear

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