> The roller crusher is subject to harsh working conditions such as impact, wear, and extrusion. The roller skin often suffers from wear, tear, and deformation. The wear resistance depends on the material of the roller skin and the working conditions. , Gray cast iron roller skins are mostly used in ordinary coarse crushing roller machines, mainly for sticky raw materials. Due to their low value, they are commonly used in many small brick factories.
When the surface layer of white cast iron is made, die casting and surface rapid cooling processes are used to produce white cast iron on the surface layer, thereby increasing the hardness of the surface layer. Its disadvantages are that the high hardness layer is shallow and the impact resistance is poor. It is mainly used for coarse crushing roller machines and has better wear resistance in the initial use.
The outer layer of the Gaoge composite roller skin is made of high chromium alloy, and the inner layer is made of ductile iron. The surface hardness can reach up to The fineness of the industrial tailings brick making process is controlled, and at the same time, the molding performance is increased by rolling the mixed raw materials, and the clay raw materials with low plasticity or high porosity hollow bricks require fine processing of the raw materials. When selecting equipment, a roller ring grinder should be equipped to ensure its proper function and effect.
The cast steel outer pile of wear-resistant welding rod roller skin is wear-resistant, impact-resistant, and easy to repair. When the whole machine structure is configured as a fine crusher, it can complete the coarse crushing of raw materials, even when the fineness requirements are not very high. of finely chopped. The disadvantage is that it is difficult to ensure dimensional accuracy when the surface layer is welded. This type of material also works well when used for coarse crushing of rollers.
The multi-element alloy wear-resistant ductile iron roller skin was developed in my country at the end of the century on the basis of introduction and digestion and combined with national conditions. Its success lies in the hardness of the surface layer achieved through quenching, but this type of material also has the drawbacks of difficulty in completely eliminating the internal stress during production and poor impact resistance during use. This type of roller skin can be used for fineness control and plasticizing functions when the hardness of the raw material is low, such as when high content of fly ash, soft shale, coal rock and dry soil materials contain stiff stone.
Cast wear-resistant steel and wear-resistant steel are mainly austenitic manganese steel. Under certain conditions, low-alloy steel that has been appropriately heat-treated also has good results. Graphite steel is used for lubricating friction conditions. .
Zhengzhou Huayang Machinery Equipment Co., Ltd. specializes in the production of various crushing equipment. Its main products include various types of die plates, frames, jaw crushers, roller machines, hammer heads, roller skins, and side guards. , vibrating screen, hammer crusher (production and processing) mainly produces high manganese steel roller skins, tooth plates, hammer heads, high hardness, and various mining crushing equipment. Various ball mill accessories, rotary kiln accessories, impact crusher accessories, dryer accessories, large ring gear, pinion gear, plate hammer, jaw plate, idler roller, tug wheel, rolling belt, roller ring, coupling, eight-hole pad, Liners, crushers and other accessories
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