Impact crusher wear parts analysis
Impact crusher wear parts is impacting rod and crushing cavity lining board. They are in the high frequency vibration in metal and material subjected to intense impact was gradually erosion, material hardness, abrasion and faster, higher, and slag in iron, dead burned block to break even can not be broken material increasing, wear consumption greater. The wear of the material requirements.
When the impact bar adopts 45 steel with fire, after treatment, quenching depth 8-1Omm, cumulative fine steel slag is not worth 2000 tons namely appear uneven abrasion and close to the residual rod; to 16Mn plate produced by the crushing cavity lining, in the cavity material buffer layer weak parts such as inlet, separator end also wear. To this, during the trial operation of the material and the assembly structure are the following improvement.
Impact rod and crushing cavity lining board adopts multicomponent alloy cast steel, by Hefei Cement Research and Design Institute of wear-resistant materials plant. According to slag high hard R ratio, on the burden to improve casting hardness and toughness, lining thickness from 5mm, was increased to 15mm, in order to strengthen the impact the wear ability.
Crushing cavity lining from the original plate instead of cast steel, the assembly structure, casting and the crushing chamber at both ends by a detachable structure, then dry lining in the grinding and grinding parts swap call and a regular supplement impact rod, so that the impact resistance and better, more convenient operation and maintenance.
Through the improvement, the impact of the wearing condition greatly improved. Since the installation operation to date, has accumulated nearly 8000 tons of fine steel slag, there is no obvious impact rod wear and deformation, easy wear parts lining board have not yet reached the exchange degree, then calculate the unit consumption of steel products is only about 60g/t products.
When the impact bar adopts 45 steel with fire, after treatment, quenching depth 8-1Omm, cumulative fine steel slag is not worth 2000 tons namely appear uneven abrasion and close to the residual rod; to 16Mn plate produced by the crushing cavity lining, in the cavity material buffer layer weak parts such as inlet, separator end also wear. To this, during the trial operation of the material and the assembly structure are the following improvement.
Impact rod and crushing cavity lining board adopts multicomponent alloy cast steel, by Hefei Cement Research and Design Institute of wear-resistant materials plant. According to slag high hard R ratio, on the burden to improve casting hardness and toughness, lining thickness from 5mm, was increased to 15mm, in order to strengthen the impact the wear ability.
Crushing cavity lining from the original plate instead of cast steel, the assembly structure, casting and the crushing chamber at both ends by a detachable structure, then dry lining in the grinding and grinding parts swap call and a regular supplement impact rod, so that the impact resistance and better, more convenient operation and maintenance.
Through the improvement, the impact of the wearing condition greatly improved. Since the installation operation to date, has accumulated nearly 8000 tons of fine steel slag, there is no obvious impact rod wear and deformation, easy wear parts lining board have not yet reached the exchange degree, then calculate the unit consumption of steel products is only about 60g/t products.
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