Method for preparing metal ceramic-based composite material by induction heating auxiliary self-propagating reaction

A cermet-based and composite material technology, which is applied in the field of material processing engineering, can solve problems such as incomplete reaction, and achieve the effects of complete combustion, low preparation cost, and high heat utilization efficiency

Inactive Publication Date: 2010-05-12
江阴东大新材料研究院
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0015] The purpose of the present invention is to overcome the incomplete reaction of large-volume self-propagating preforms in the prior art, and provide a method for prepa

Method used

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Example Embodiment

[0036] The invention relates to an induction heating-assisted self-propagating reaction method for preparing cermet-based composite materials. The method includes the following processes:

[0037] Step 1. Prepare compound powder according to the requirements of stoichiometric ratio

[0038] The composite powder is composed of Ti, C, and Fe powders, with a particle size of 200-270 mesh of 128g Ti powder, 32g C powder and 40g Fe powder.

[0039] Step two, mixing

[0040] Put Ti powder, C powder and Fe powder directly into a mixer for dry mixing for 2 to 4 hours to prepare the required mixed powder.

[0041] Step three, pressing the preform

[0042] The mixed powder obtained in step 2 is placed in a mold and pressed on a press to form a preform.

[0043] Step 4: High-frequency electromagnetic induction heating assisted self-propagation (SHS) hot pressing

[0044] Using a high-frequency induction heating furnace, heating and igniting the preform with a current of 60A and a voltage of 220V to c...

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Abstract

The invention relates to a method for preparing a metal ceramic-based composite material by induction heating auxiliary self-propagating reaction. The method comprises the steps of taking two or more kinds of powder capable of carrying out self-propagating reaction by utilizing the self-propagating reaction principle, confecting the powder by chemometry, adding a certain proportion of metal powder to form composite material, evenly mixing the material to be pressed into prefabricated parts, adopting high frequency induction heating and igniting the prefabricated parts to enable self-propagating reaction to carry out on the prefabricated parts to produce metal ceramic-based composite materials, carrying out mould pressing 2-3 minutes after reaction to obtain the metal ceramic-based composite material. The invention has the advantages of complete combustion, high heat utilization efficiency, low preparation cost of the material, easy control, safety and reliability, and the prepared metal ceramic material has smooth and thick surface, high intensity and low porosity.

Description

(1) Technical field [0001] The invention relates to a method for preparing a metal-ceramic matrix composite material through self-propagating reaction assisted by high-frequency induction heating. It belongs to the technical field of material processing engineering. (2) Background technology [0002] In recent years, with the large-scale research and development of ceramic materials, ceramic processing technology has attracted more and more attention. [0003] Electromagnetic induction heating technology, referred to as IH (Induction Heating) technology, is developed on the basis of Faraday's law of induction and is an application form of Faraday's law of induction. It has the advantages of fast heating speed, high heating efficiency and no pollution, and is widely used in household appliances, quenching, welding and other fields. [0004] Electromagnetic induction heating technology uses the principle of high-frequency electric heating to convert alternating current into ...

Claims

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Application Information

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IPC IPC(8): C22C1/05
Inventor 陈威谭佃龙汤秀山刘礼华李吉峰朱磊练永明郑召全
Owner 江阴东大新材料研究院
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