Impact crusher is important to hammer wear-resistant parts, in the high speed rotating suffered strong impact and wear and tear of various materials and the consumption is very large, we must understand the causes of hammer head wear, to take reasonable measures to improve the hammer head wear and prolong service life.what are the factors influencing impact crusher hammer head wear?
First ,improper material selection: hammer hardness and wear resistance are neither alone, nor alone is associated with toughness, but mutual cooperate with high hardness and good toughness.The high manganese steel hammer head is commonly used material, if the hammer mill not under enough stress, generate enough hardening layer, due to the stability of austenitic manganese steel, high content of austenite in the organization, its surface hardness is low, its nature of abrasion resistance is not high.
Second,The influence of the actual working conditions, high strong steel hammer at work without effective hardening layer, make the hammer head work plays the hardness of performance are not up to the standard of the work required, so the hammer head is not wear-resisting, life is much lower than the design life expectancy.
Third,Hammer and material of the friction: in crushing homework, only a handful of materials can the whole piece into the strike zone, and most of the materials, especially large materials, only one end into the strike zone, so that sliding friction material and hammer head, and back plate adhesive powder causes friction is more serious, leading to their rapid wear.In thisituation, dahua suggest user as pretreatment for the material, as far as possible put into the materials in powder,dirt and water screen out in advance.
Fourth,Materials not broken equipment provision: the type of counterattack crusher with broken material, if the hardness of materials beyond the prescribed scope of the equipment, will increase with the degree of friction of hammer head, and the wear and tear hammer head.