A method of manufacturing a cone crusher liner

Abstract

The invention discloses a manufacturing method for a conical crushing machine liner plate. Through the provided scheme, the abrasion resistance and the toughness of the liner plate can be greatly improved. Trial data show that the abrasion resistance and the toughness are improved by about 50% than those in the prior art. Intercrystalline cracks do not occur to a liner plate structure through detection, thus, microcracks of the liner plate are avoided, and the service life of the liner plate is greatly prolonged. Meanwhile, molten metal is poured under gas protection, and the effect that the inclusion phenomenon of the liner plate does not occur is further ensured, so that the service life of the liner plate is prolonged. The defect that the thickness of a liner plate of an integral structure is same is overcome, the hardness of alloy columns distributed at multiple points is higher than that of other parts, meanwhile, the alloy columns become controlled cooling radiating points, the cooling speed of a liner plate casting is increased, thus, the purpose of refining crystal particles is achieved, the toughness of a high manganese steel liner plate body is further improved, and the service life of the liner plate is prolonged.

Description

technical field [0001] The invention relates to a crusher, in particular to a method for manufacturing a liner of a cone crusher. Background technique [0002] Liners used on cone crushers need to have high wear resistance and high toughness. Under normal circumstances, the liner of the crusher is selected from imported products with high service life or domestic products with low service life according to the different crushed objects. For this reason, in recent years, those skilled in the art have provided many solutions in terms of materials to improve the service life of the lining plate, such as increasing the content of chromium and manganese or mainly using high manganese steel, adding trace elements to high manganese steel, etc. In these schemes, it is not easy to avoid the phenomenon of shrinkage cavity porosity that is easy to occur in casting and lead to microcracks in the core, thus affecting the service life of the liner. Because the liner is a vulnerable part...

AI Technical Summary

Problems solved by technology

In these schemes, it is not easy to avoid the phenomenon of shrinkage cavity and porosity in the casting that leads to microcracks in the core, which will affect the service life of the liner.

Since the liner is a vulnerable part with a large volume and a lot of materials, and when a part of it is damaged, the whole liner will be scrapped, which makes the waste of materials particularly serious

And because the frequent replacement of lining boards is easy to bring more inconvenience to production, therefore, those skilled in the art have provided various solutions in recent years to expect to solve the above problems, but none of them have achieved the desired effect.

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