一般的な耐摩耗性材料

Ordinary Wear-Resistant Materials and Their Limitations for Anchor Miners

Ordinary wear-resistant materials, 通常は低合金高張力耐摩耗鋼, often fail to meet the needs of anchor miners. This type of steel features a tempered martensite microstructure, providing high strength, 良好な靭性, そして耐摩耗性.

Composition and Characteristics

• Thickness and Welding Performance: The steel plates used in the loading mechanism are over 20 mm thick. The welding performance is assessed using the carbon equivalent (CE), calculated with the formula:CE=C+Mn6+Si24+Ni15+Cr5+Mo4+Cu13+P2\text{CE} = C + \frac{ん}{6} + \frac{そして}{24} + \frac{で}{15} + \frac{Cr}{5} + \frac{モー}{4} + \frac{銅}{13} + \frac{P}{2}CE=C+6Mn​+24Si​+15Ni​+5Cr​+4Mo​+13Cu​+2P​Using this formula, the carbon equivalent is 0.547%. To enhance wear resistance, wear-resistant welding rods can be used for local surfacing.
• 化学組成 (Mass Fraction %):
  • C: 0.24
  • そして: 0.28
  • ん: 0.78
  • P: 0.015
  • S: 0.006
  • 銅: 0.028
  • で: 0.36
  • Cr: 0.63
  • モー: 0.028
  • V: 0.04
  • B: 0.002
• 機械的性質:
  • 抗張力: 1084 MPa
  • 降伏強さ: ≥800 MPa
  • Elongation at Fracture: 14.93%
  • 硬度: 360–420 HB

In summary, this material offers high strength, 硬度, excellent anti-adhesive wear performance, strong toughness, and good welding and mechanical processing performance. しかし, in practice, its average service life is less than 2 million tons.

耐摩耗性複合鋼板

Wear-resistant composite steel plates consist of a wear-resistant composite layer welded onto the surface of ordinary steel plates. The composite layer is metallurgically bonded to the base metal, significantly enhancing surface wear resistance. High-chromium alloy welded wear-resistant composite steel plates are popular due to their superior mechanical properties and cost-effectiveness.

泰達江華金属 -17 年
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