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Hammer based on functional gradient composite material as well as preparation method of hammer

A composite material, functional gradient technology, applied in the direction of manufacturing tools, heat treatment equipment, furnaces, etc., can solve the problems of poor wear resistance and low service life of hammers, and achieve low production costs, improved hardness and wear resistance, and improved durability. The effect of abrasiveness and longevity

Inactive Publication Date: 2014-08-20
NANTONG HANKE NEW ENERGY DEV CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of the above-mentioned technical status, the object of the present invention is to provide a hammer and its preparation method to solve the problems of poor wear resistance and low service life of the above-mentioned hammer

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  • Hammer based on functional gradient composite material as well as preparation method of hammer
  • Hammer based on functional gradient composite material as well as preparation method of hammer

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Embodiment Construction

[0020] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with specific embodiments.

[0021] A hammer blade based on functionally graded composite materials, including a hammer substrate, such as figure 1 As shown, the working end 1 of the hammer is provided with a ceramic particle reinforced composite layer with a content of WC50% or more, which is a wear-resistant layer; the surface structure of the middle 2 of the hammer is fine needle-like tempered martensite plus fine-grained carbides, with carbon content 0.8%-1.0%; the transition layer structure is fine needle tempered martensite plus lath tempered martensite, the core structure is lath tempered martensite, carbon content 0.2%; hammer fixed Part of the pin hole structure is mainly tempered sorbite.

[0022] The hardness of the working end is 63-65HRC, the surface hardness of the middl...

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Abstract

The invention discloses a hammer based on a functional gradient composite material. The hammer based on the functional gradient composite material comprises a hammer base body, and is characterized in that the operation end of the hammer is provided with a ceramic particle reinforced composite layer with the content of WC being above 50% as a wear-resisting layer; the surface layer tissue in the middle of the hammer is composed of a fine-needle-shaped tempered martensite and fine carbide particles, wherein the carbon content is 0.8%-1.0%; the transition layer tissue is composed of the fine-needle-shaped tempered martensite and a lath-shaped tempered martensite, and the heart part tissue adopts a lath-shaped tempered martensite with the carbon content of 0.2%; the pin hole part tissue of the fixed end of the hammer mainly adopts a tempered sorbate. The invention also discloses a preparation method. The obtained hammer based on the functional gradient composite material has the advantages of high performance and long service life, is high in production cost and profit, a great number of steel materials can be saved for the crusher industry of China, energy consumption can be reduced, the energy conservation and environment protection in the industry can be promoted, and the core competitiveness can be improved.

Description

Technical field [0001] The invention relates to the technical field of the production of hammers for pulverizers, in particular to a hammer based on gradient functional composite materials and a preparation method thereof. Background technique [0002] Hammer mills are widely used in feed, grain, food, medicine, chemical and other industries. The hammer mill is a mechanical equipment that uses a high-speed rotating hammer to crush materials. The hammer is the core component of various types of mills. The high-speed rotation of the main shaft makes the end angular velocity of the hammer reach 50-100m / s. The peripheral screens and toothed plates constitute the crushing chamber. After the materials enter the crushing chamber from the feeding hopper, they are subjected to the impact of high-speed hammers, the impact of toothed plates and screens, and the friction between the screens and hammers. After being gradually crushed to a certain degree of fineness, it is discharged from the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B02C13/28C21D9/00
Inventor 华井兵金云学杨安祥曹月兰
Owner NANTONG HANKE NEW ENERGY DEV CO LTD
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