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Foam metal, preparation method thereof and cookware

A technology of metal foam and cooking utensils, which is applied in the field of metal foam, can solve the problems of complex pretreatment process, waste of precious metal catalyst, unfriendly environment, etc., and achieve improved coating coverage, simplified pretreatment process, and uniform distribution of pore structure Effect

Inactive Publication Date: 2016-09-28
FOSHAN SHUNDE MIDEA ELECTRICAL HEATING APPLIANCES MFG CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the existing metal foams are usually prepared by using porous foam as the base material for electrodeposition, and need to undergo pretreatment, chemical deposition, electrodeposition, incineration and thermal reduction processes to make metal foam materials.
Because degreasing, roughening, hydrophilicity, sensitization, activation, and degumming must be performed before chemical deposition, the pretreatment process is complicated and the process is difficult to control; and this preparation method is not friendly to the environment, and the cost is high. More precious metal catalysts need to be wasted

Method used

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  • Foam metal, preparation method thereof and cookware
  • Foam metal, preparation method thereof and cookware

Examples

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preparation example Construction

[0052] Such as figure 1 Shown, the preparation method of the metal foam that the embodiment of the first aspect of the present invention provides, comprises:

[0053] Step S20: placing the porous foam substrate in a vacuum chamber for metal coating to obtain a porous foam substrate with a conductive layer;

[0054] Step S30: placing the porous foam substrate with a conductive layer in an electroplating solution of metal ions for electroplating to obtain a porous foam substrate with a metal plating layer, and then drying it;

[0055] Step S40: Sintering the porous foam substrate with metal coating to obtain metal foam;

[0056] Wherein, the step S20 specifically includes:

[0057] Step S202: placing the porous foam substrate in a vacuum chamber for evaporation coating;

[0058] Step S204: placing the porous foam substrate obtained after evaporation and coating in a vacuum chamber for sputter coating to obtain the porous foam substrate with a conductive layer.

[0059] Prefe...

Embodiment 1

[0103] Soak the polyurethane foam material with a porosity of 90% in a degreasing solution at a temperature of 40°C for 8 minutes and then rinse it with distilled water;

[0104] Bake the polyurethane foam material to 130°C for 40 minutes;

[0105] Place the degreased polyurethane foam material in a vacuum chamber for evaporating copper plating. The process parameters for evaporating copper plating are as follows: the background vacuum is 1.0×10 -3 Pa, the evaporation current is 2A, and the evaporation time is 60s;

[0106] Place the evaporated polyurethane foam material in a vacuum chamber for sputtering copper plating. The process parameters of sputtering copper plating are as follows: the background vacuum is 1.0×10 -3 Pa, the sputtering power is 10kW, the argon flow rate is 200sccm, the film formation time is 20min, and the bias voltage is 50V;

[0107] First place the polyurethane foam material obtained after sputtering copper plating in the electroplating solution, pre...

Embodiment 2

[0111] Soak the polyurethane foam material with a porosity of 93% in a degreasing solution at a temperature of 50°C for 9 minutes and then rinse it with distilled water;

[0112] Bake the polyurethane foam material to 140°C for 35 minutes;

[0113] Place the degreased polyurethane foam material in a vacuum chamber for evaporating copper plating. The process parameters for evaporating copper plating are as follows: the background vacuum is 1.5×10 -3 Pa, the evaporation current is 4A, and the evaporation time is 45s;

[0114] Place the evaporated polyurethane foam material in a vacuum chamber for sputtering copper plating. The process parameters of sputtering copper plating are as follows: the background vacuum is 5.0×10 -3 Pa, the sputtering power is 15kW, the argon flow rate is 300sccm, the film formation time is 15min, and the bias voltage is 100V;

[0115] First place the polyurethane foam material obtained after sputtering copper plating in the electroplating solution, pr...

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Abstract

The invention provides foam metal, a preparation method thereof and cookware. The preparation method of the foam metal comprises the steps that S20, a porous foam substrate is placed in a vacuum chamber for metal coating, and the porous foam substrate with an electrical conductive layer is obtained; S30, the porous foam substrate with the electrical conductive layer is placed in an electroplating solution of metal ions for electroplating, and the porous foam substrate with a metal coating is obtained and aired; and S40, the porous foam substrate with the metal coating is subjected to sintering treatment, and foam metal is obtained. The step S20 specifically comprises the procedures that S202, the porous foam substrate is placed in the vacuum chamber for evaporation coating; and S204, the porous foam substrate obtained after evaporation coating is placed in the vacuum chamber for sputtering coating, and the porous foam substrate with the electrical conductive layer is obtained. According to the foam metal, the preparation method thereof and the cookware, the electrical conductive layer is prepared through vacuum evaporation coating and vacuum sputtering coating, so that the preparation process of the foam metal is simplified, and the quality of the foam metal is improved.

Description

technical field [0001] The invention relates to the field of metal foam, in particular to a metal foam, a preparation method thereof, and a cooking utensil filled with the metal foam. Background technique [0002] At present, soybean milk makers and electric kettles are noisy when in use, and noise needs to be reduced; cooking appliances such as rice cookers and electric pressure cookers need to improve heating uniformity. As a new multifunctional material, metal foam has good sound absorption performance and phase change heat transfer performance due to its porous characteristics, which makes metal foam have great applications in reducing noise and improving heating uniformity. [0003] However, the existing metal foams are usually prepared by electrodeposition using porous foam plastics as the base material, and need to undergo pretreatment, chemical deposition, electrodeposition, incineration and thermal reduction processes to make metal foam materials. Because degreasin...

Claims

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Application Information

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IPC IPC(8): C23C14/24C23C14/34C23C14/20C25D5/10C23C28/02
CPCC23C14/20C23C14/24C23C14/34C23C14/5873C23C28/023C25D5/10
Inventor 曹达华杨玲李康李洪伟李宁
Owner FOSHAN SHUNDE MIDEA ELECTRICAL HEATING APPLIANCES MFG CO LTD
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