Array type ceramic preform sintering unit monomer and high-flux pressureless sintering method

A prefabricated body and array-type technology, which is applied in the field of wear-resistant material preparation, can solve the problems of ceramic prefabricated body easy to collapse, low temperature strength of prefabricated body, and poor applicability, so as to achieve high-throughput pressureless sintering and improve interface bonding strength , The effect of saving the R & D cycle
CN112456980AActive Publication Date: 2021-03-09XI AN JIAOTONG UNIV +1
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
XI AN JIAOTONG UNIV
Publication Date
2021-03-09

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Abstract

The invention discloses an array type ceramic preform sintering unit monomer and a high-flux pressureless sintering method. The method comprises carrying out surface modification on ceramic particles,mechanically mixing with alloy powder, placing in a graphite mold to be pre-pressed to form a sintering monomer, and then sintering in a high-flux vacuum pressureless sintering furnace. Single-batchand high-flux ceramic particle preforms are prepared by controlling ceramic particle components, sizes, surface modification methods, alloy powder components and addition amounts in ceramic preform sintering unit monomers. The prepared prefabricated body can be widely applied to preparation of wear-resistant layers required by wear-resistant composite materials such as grinding rollers, plate hammers, hammer heads, bucket teeth, lining plates, impellers and reamer heads, and has the advantages of being simple to operate, low in cost and high in efficiency.
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Description

technical field

[0001] The invention belongs to the technical field of preparation of wear-resistant materials, and in particular relates to a sintering unit monomer of an array type ceramic preform and a high-throughput pressureless sintering method. Background technique

[0002] Iron-based composite materials are widely used in key sectors of the national economy such as metallurgy and mining, and ceramic prefabricated bodies are important reinforcements for iron-based composite materials. Conventional methods for preparing ceramic preforms usually use organic binders for bonding, and then solidify to form preforms, which have the disadvantages of low high-temperature strength of preforms and easy collapse of ceramic preforms during pouring of molten metal. Moreover, only the method of solidifying ceramic particles with an organic binder cannot improve the bonding characteristics of the interface between the ceramic particles and the iron matrix, such as wettability and in...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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