Wear part intended for a crusher and a method of manufacturing the same

A technology of wear-resistant parts and crushers, which is applied in the field of wear-resistant parts and can solve problems such as difficult and time-consuming machining

Inactive Publication Date: 2005-08-17
SANDVIK INTELLECTUAL PROPERTY AB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problem is that Hadfield steel will also be deformation hardened in this kind of machining which makes machining difficult and time consuming

Method used

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  • Wear part intended for a crusher and a method of manufacturing the same
  • Wear part intended for a crusher and a method of manufacturing the same
  • Wear part intended for a crusher and a method of manufacturing the same

Examples

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Embodiment Construction

[0037] FIG. 1 shows a rotary crusher 1 . The crusher 1 has a crusher shaft 2 mounted eccentrically at its lower end 3 . On its upper side, the crusher shaft 2 has a crushing head 4 . The crushing head 4 has an inner shell 5 which crushes the material supplied to the upper part 6 of the crusher against an outer shell 7 in the continuous rotation and vibration of the crusher shaft 2 . A crushing chamber 8 is formed between the inner casing 5 and the outer casing 7 . In principle, the functionality of the crusher 1 is determined by the gap S as the minimum distance between the inner shell 5 and the outer shell 7 of the crusher 1 . The crusher shaft 2 can move in the vertical direction under the action of the adjusting device 9 . Thus, the gap S of the crushing chamber 8 can be adjusted so that the relationship between the amount of material crushed by the crusher 1 and the size of the crushed material can be set in a desired manner.

[0038] Figure 2 shows an inner shell 5' a...

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PUM

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Abstract

A wear part (5) for detachable mounting on a supporting part in an impact-type multi-action crusher is at least partly manufactured by hot isostatic pressing. The wear part (5) has a body (19) for mounting of the wear part (5) on the supporting part and a crushing layer (20) which is attached to the body (19) and which is adapted to be brought, during operation of the crusher, into repeated contact with a raw material that is to be crushed. The body (19) is made of a substance which is easy to machine to narrow tolerances, and the crushing layer (20) is made of a material (27, 28) of high abrasive resistance. In a method of manufacturing the above wear part (5), the following steps are carried out: introducing at least one powder material (27, 28) into a capsule, degassing and sealing the capsule, subjecting the material (27, 28) in the capsule to hot isostatic pressing to form a crushing layer (20), and then after treatment of the wear part (5).

Description

technical field [0001] The invention relates to a wear part for detachably mounting on a support in an impact multi-action crusher. The invention also relates to a method of manufacturing such a wear part. Background technique [0002] Impact multi-action crushers such as rotary crushers and jaw crushers crush raw materials such as stones, ore blocks, concrete or bricks, etc. by repeatedly moving their wear parts toward the raw material to press the raw material against the reaction body. The wear part is supported by supports for transmitting the necessary forces from the motor, moment arm, shaft etc. to the wear part. The crushing operation causes wear of the wear parts, which from time to time must be removed from the support and replaced. [0003] For maximum life, wear parts are made of materials with maximum wear resistance. Wear parts are usually cast from a material known as Hadfield steel. These steels are eg described in US 5,069,871 and EP 0 692 548 as austeni...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B02C1/10B02C2/00B02C2/04
CPCB02C2/005
Inventor 佩尔·奥尔松·阿特伯格安德斯·尼尔松皮埃尔·兰登
Owner SANDVIK INTELLECTUAL PROPERTY AB
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