Impact crusher hammers is the main factor: wear hammerheads material, manufacturing quality and structure design, crusher, feeding and structure of the department.
The Impact crusher crusher hammers shading effects
Generally speaking, its wearability of hardness of the great hammer. Improve the hardness, wear resistance, hammers increased, but the hardness, impact resistant hammer will decrease. Therefore, how to have appropriate hardness and resistance to hammer, impact toughness increase the abrasion resistance hammer. Material: with the hammer of high manganese steel, high chromium cast iron, low carbon steel. High manganese steel toughness, good technology, cheap price, its main characteristic is in the huge impact and the contact stress, work hardening layer, it will soon produce than other materials, processing hardening exponent, 5-7 times, get bigger. But, if use towel or contact stress of impact is small enough, not as quick to production and processing, surface is able to bear or endure high manganese steel can fully. High chromium cast iron is a kind of excellent anti-wear properties, but toughness wear-resisting material, have low, brittle fracture. In order to make high chromium cast iron hammer head safety operation, people compound modification treatment, high chromium cast iron hammer out in high manganese steel hammer or low alloy steel and, or hammerheads working part adopts high chromium cast iron hammer handle part adopts steel, will both compound, hammer with high hardness and high toughness and into full play to one's own advantage, overcome the defects of two kinds of material, met a single material use hammer performance requirements. But its production technology complex and strict requirements. Mainly used for low carbon steel plate containing cr, molybdenum elements alloy steel, high hardness and toughness, matrix, bainite, or martensite organization bainite, + martensite organization. A hammer is wrong hardness 45 impact toughness d. P J / 15. Under the same conditions, the use of life than high manganese steel hammer at least improve my times above. But hammer is the key, quenching and tempering treatment, only after quenching and tempering treatment for heating the overall tensile strength, and requirements of 8.5 mpa fairly plasticity and toughness.
Hammer crusher hammers manufacturing quality
Hammer of manufacturing process is the key element of determine its service life. If the hammer surface or internal defects, such as manufacturing, cracks, porosity, not only in the crystal will decrease, even causing hammer hammer breaking. Therefore, in the auction the firstborn, reasonable casting heat treatment process. For example, high chromium cast iron hammer head should adopt the reasonable use, vertical cast iron, strict control temperature, cold measures, such as pouring molten can make hammer intact the curing shrinkage and density of internal organization, makes the coarse grains. Hammer heat treatment process, determine the mechanical properties and the distribution of carbon. The materials in a certain number of chromium alloy element and other, so how to make these alloy elements of the alloy, also difficult points effect, heat treatment process for a important factor. Anyhow, formulate rational production technology and strict quality testing method, ensure the performance of hammer head prerequisite.
Hammer crusher hammers structure designing
Different structure and the geometry of the hammer, the mechanics properties of internal heat in organization, have very big difference, and has great influence on the abrasion resistance, especially thickness, the effects of the size hammer is more prominent. Heavy hammer, much easier and more hard antiwear properties. Due to internal antiwear properties hammer significantly below the surface, therefore, ply is bigger, only hammer casting and heat treatment process reasonable: [to improve the situation, but the means to improve the hammer antiwear properties is limited, the best way is to not changing the hammer the energy and strength, the structure of the hammer, on the one hand, optimization design can improve the instrument equipment utilization hammer, on the other hand it can reduce the influence of heat-treatment property, avoid hammer of justice, the structure of the wear-resisting performance decline.
Hammer crusher technical parameters
A hammer and a life of the technical parameters, crusher is a major transfer speed and strength. These two parameters is directly reflected in linear and impact hammer, they are not only related production capacity, also influence the crusher hammers hardening relationshiop between degree. Good impact hardening hammer, life would be extended. The rotor speed is low, only production capacity is very low, low energy consumption, adverse influence; Hammer sclerosis wear-resisting performance, too, although can rotor speed to obtain good effect to hammer hardening, equipment, improve the productivity. But also caused hammer, grinding, lining plate hammer, strong wear service life and it increases the power consumption. Therefore, we should make sure reasonable speed, in order to improve the impact hammer antecedent work, reduce arteriosclerosis hammerheads of wear and tear.