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Metal and/or metal-based composite material microwave heating method

A composite material, microwave heating technology, applied in the field of microwave heating of metal and/or metal matrix composite materials, can solve the problem of inability to absorb microwave heat effectively, and achieve the effect of improving structure and performance

Active Publication Date: 2016-06-08
潍坊国科经贸有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, microwaves are selective to the material to be heated. Since metals and / or metal matrix composites reflect microwaves and cannot effectively absorb microwave heat, microwave heating of metals and / or metal matrix composites has not been possible.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] (1) Use 280, 320, 400 mesh sandpaper to polish the surface of Ti alloy (TC-4) (size: 50mm×50mm×50mm) until the surface is smooth, and then use artificial washing method to polish it with oil After the surface of the Ti alloy is degreased.

[0051] (2) Applying the microwave absorbing paint on the surface of the Ti alloy pretreated in the step (1) with a brush. The microwave absorbing coating includes a binder and a microwave absorber, the binder is water glass with a modulus of 2 and a mass concentration of 35%, and the microwave absorber is ferrite powder of 2 μm; wherein the microwave absorber The mass percent of the microwave absorbing coating is 60%.

[0052] (3) Use a vacuum dryer to dry and solidify the Ti alloy coated with a microwave-absorbing coating on the surface obtained in step (2). The drying and curing temperature is 60° C. and the time is 10 minutes to form a cured coating with a thickness of 2 mm. Floor.

[0053] (4) Using a microwave workstation to ...

Embodiment 2

[0055] (1) Grind the surface of the Mg alloy (AZ91D) (size: 40mm×40mm×50mm) with 280, 320, and 400-mesh sandpaper in sequence until the surface is smooth, then immerse the polished Mg alloy in gasoline, and use The surface of the polished Mg alloy is degreased by means of mechanical stirring.

[0056] (2) Applying the microwave absorbing paint on the surface of the Mg alloy pretreated in the step (1) with a brush. Described microwave absorbing coating comprises binding agent and microwave absorbing agent, and described binding agent is the water glass that modulus is 2.3, mass concentration is 35%, and microwave absorbing agent is the carbonyl iron powder of 8 μm; Wherein, microwave absorbing agent accounts for The mass percentage of the microwave absorbing coating is 80%.

[0057] (3) Use a vacuum dryer to dry and solidify the Mg alloy coated with microwave-absorbing coating on the surface obtained in the step (2). The drying and curing temperature is 70° C., and the time is...

Embodiment 3

[0060] (1) Use 280, 320, 400 mesh sandpaper to polish the surface of Cu alloy (H65) (size: 50mm × 40mm × 15mm) until the surface is smooth, then immerse the polished Cu alloy in oil, and use The surface of the polished Cu alloy is degreased by means of mechanical stirring.

[0061] (2) Coating the microwave absorbing paint on the surface of the Cu alloy pretreated in the step (1) with a brush. Described microwave absorbing paint comprises binding agent and microwave absorbing agent, and described binding agent is the water glass that modulus is 2, mass concentration is 40%, and microwave absorbing agent is the metallic iron powder of 15 μm; Wherein, microwave absorbing agent accounts for The mass percentage of the microwave absorbing coating is 70%.

[0062] (3) Use a vacuum dryer to dry and solidify the Cu alloy coated with a microwave-absorbing coating on the surface obtained in step (2). The drying and curing temperature is 65° C. and the time is 10 minutes to form a cured...

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PUM

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Abstract

The invention provides a metal and / or metal-based composite material microwave heating method. The surface of metal and / or a metal-based composite material is subject to pretreatment, and the pretreated surface of the metal and / or the metal-based composite material is coated with a microwave absorption coating including a binding agent and a microwave absorption agent; then, drying curing is carried out, and after drying curing is completed, microwave heating is carried out; and compared with a traditional heating method, the method has the beneficial effects that a main heat transfer mechanism is changed, thermal radiation and thermal convection are converted into heat conduction, microwave rapid heating of the metal and / or the metal-based composite material can be achieved, within 5 min to 8 min, the temperature of the metal and / or the metal-based composite material rises to above 800 DEG C from the room temperature, and therefore the basis is provided for improvement of structures and performance of the metal and / or the metal-based composite material.

Description

technical field [0001] The invention relates to the technical field of heat treatment of metal materials, in particular to a microwave heating method for metal and / or metal matrix composite materials. Background technique [0002] With the development and progress of modern industry, the rapid growth of productivity puts forward new requirements for materials. In addition to the development of new materials, the potential for existing metal materials, especially high-end metal materials with high cost, and metal matrix composites The full development of performance is also an important focus of material research in the 21st century. Grain refinement can significantly improve the properties of materials such as hardness and strength, and the heat treatment method of materials has an important impact on the size of grains, which in turn affects the properties of materials. The traditional heat treatment method is to transfer heat from the outside to the inside of the material...

Claims

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Application Information

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IPC IPC(8): C21D1/34C21D1/70
CPCC21D1/34C21D1/70
Inventor 崔岩邵健杨越刘峰斌曹雷刚
Owner 潍坊国科经贸有限公司
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