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High-manganese steel inset high-chromium cast iron jaw plate and manufacturing method thereof

A technology of high-chromium cast iron and high-manganese steel, applied in grain processing and other directions, can solve the problems of high operation requirements and difficult to achieve close coordination.

Inactive Publication Date: 2017-05-31
ZHEJIANG WUJING MACHINE MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The joint surface of the patented high-chromium cast iron layer and the high-manganese steel jaw plate body has high operational requirements due to structural reasons, and it is difficult to achieve a close fit during production.

Method used

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  • High-manganese steel inset high-chromium cast iron jaw plate and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1: as figure 1 As shown, a high-manganese steel inlaid high-chromium cast iron jaw plate includes a high-manganese steel casting base 1, and the high-manganese steel casting base 1 is provided with several tooth peaks arranged in parallel at intervals and interspersed between two adjacent tooth peaks. Tooth valley, each tooth crest is provided with a number of dovetail grooves 4 that are small in size and large in size, that is, a trapezoidal cavity, and each dovetail groove 4 is equipped with a trapezoidal high-chromium cast iron mosaic block whose volume is smaller than the cavity 3. Of the four sets of mating surfaces facing each other among the four trapezoidal side surfaces of the trapezoidal body of the high chromium cast iron mosaic block 3 and the trapezoidal cavity walls of the dovetail groove 4, at least one of the mating surfaces but at most three of them are matched The surfaces are veneer abutment, and there are at most three sets of mating surfa...

Embodiment 2

[0023] Embodiment 2: The rest is the same as Embodiment 1, the high chromium cast iron mosaic block 3 protrudes outside the dovetail groove 2 of the high manganese steel casting substrate 1 .

[0024] A method for manufacturing a high manganese steel inlaid high chromium cast iron jaw plate, comprising the following steps:

[0025] (1) One piece of prefabricated high manganese steel casting base, on which there are several tooth peaks arranged in parallel at intervals and tooth valleys interspersed between two adjacent tooth peaks, and each tooth peak is provided with several outer small The large inside is the dovetail groove with trapezoidal cavity;

[0026] (2) A number of prefabricated high-chromium cast iron mosaic blocks, the number of which is equal to the number of dovetail grooves on the base of the whole high-manganese steel casting. , but the height of each high chromium cast iron mosaic block is higher than the cavity of the dovetail groove, that is, the high chro...

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Abstract

The invention discloses a high-manganese steel inset high-chromium cast iron jaw plate and a manufacturing method thereof. Dovetail grooves and high-chromium cast iron inset blocks on the tooth face of a high-manganese steel casting base body are each made to be a big-end-down trapezoid; after a proper amount of epoxy resin is poured into the dovetail grooves, the high-chromium cast iron inset blocks are put into the dovetail grooves and pushed to one sides in the dovetail grooves; and wedge-shaped clearances between the dovetail grooves and the high-chromium cast iron inset blocks are utilized for constraining, the residual empty clearances of the high-chromium cast iron inset blocks and the dovetail grooves are filled with high-manganese steel plug strips, and finally high-manganese high welding rods are used for firm welding.

Description

technical field [0001] The invention relates to the technical field of jaw plates of crushers, in particular to a jaw plate embedded with high manganese steel and high chromium cast iron. Background technique [0002] At present, with the development of science and technology, the single matrix material of high manganese steel, which used to be the trump card wear-resistant material, can no longer meet the dual requirements of hardness and impact toughness in use. Wear-resistant material with higher hardness to improve working time. The purpose of inlay casting is to continue to use the traditional high-toughness and surface-hardening (hardness above HRC40) high-manganese steel as the matrix for the reliability of the overall casting, so as to ensure that the whole does not crack (break) during production and use; The second is to insert high-chromium cast iron with a hardness above HRC60 in the key parts that are easy to wear in the matrix, so that the wear-resistant servi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B02C1/10
CPCB02C1/10
Inventor 梁伟武刘国祥朱晓畅王志强郑晓峰金星星
Owner ZHEJIANG WUJING MACHINE MFG
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