Foamed aluminum paraffin plate type composite phase change material and preparation method thereof
A technology of composite phase change material and aluminum foam, which is applied in the field of aluminum foam paraffin sheet-like composite phase change material and its preparation, can solve the problems of difficult surface sealing, unsatisfactory strength and sealing performance, and unsatisfactory comprehensive thermal performance, etc., to achieve Improved thermal conductivity and excellent overall thermal performance
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[0025] The preparation method of the aluminum foam paraffin composite sheet-like phase change material comprises the following steps:
[0026] Step A: making a closed-cell foam aluminum plate, making a closed-cell foam aluminum plate with a foam hole porosity of 90.5% to 97.5%;
[0027] Step B: Machining forming holes vertically or inclined to the surface of the closed-cell foam aluminum plate, the distribution rate of the forming holes is 40-70%, and cutting the closed-cell foam aluminum plate into required sizes;
[0028] Step C: making a composite mold, using aluminum foil stamping to make a mold for controlling the composite forming of two materials;
[0029] Step D: making molten paraffin, putting the solid paraffin into a container for heating, the heating method is heating in a water bath; the temperature is controlled between 70-80°C until the solid paraffin is in a molten state;
[0030] Step E: Material compounding, put the closed-cell foamed aluminum plate into the...
Embodiment 1
[0035] Embodiment 1: A closed-cell foamed aluminum plate with a porosity of 97.5% and a size of 300*300*10mm is selected to make a foamed aluminum paraffin wax composite phase change material. The process steps are as follows:
[0036] 1. A closed-cell foamed aluminum plate with a porosity of 97.5% is produced through molten aluminum foaming technology and other specific processes, and the surface distribution of 40% of the formed holes is prepared. The hole diameter is 2mm and the hole depth is 4mm. The foamed aluminum plate is cut to size by wire cutting technology 300*300*10mm;
[0037] 2. Use stamping equipment to make aluminum foil materials into composite molds of corresponding shapes;
[0038] 3. Select 0.8-1.0kg of solid paraffin into a container, and heat the solid paraffin by heating in a water bath. The temperature is controlled between 70-80°C until the solid paraffin is in a molten state;
[0039] 4. Put the closed-cell foamed aluminum plate with a porosity of 97...
Embodiment 2
[0042] Embodiment 2: A closed-cell foamed aluminum plate with a porosity of 95.5% and a size of 300*300*10mm is selected to make a foamed aluminum paraffin wax composite phase change material. The process steps are as follows:
[0043] 1. A closed-cell foamed aluminum plate with a porosity of 95.5% is produced through molten aluminum foaming technology and other specific processes, and 50% of the surface is prepared to form holes with a hole diameter of 2mm and a hole depth of 4mm. The foamed aluminum plate is cut into sizes using wire cutting technology 300*300*10mm;
[0044] 2. Use stamping equipment to make aluminum foil materials into composite molds of corresponding shapes;
[0045] 3. Select 0.8-1.0kg of solid paraffin into a container, and heat the solid paraffin by heating in a water bath. The temperature is controlled between 70-80°C until the solid paraffin is in a molten state;
[0046] 4. Put the through-hole foamed aluminum plate with a porosity of 97.5% into the...
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Abstract
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