Preparation process of heat shield of storage battery
A preparation process and heat shield technology, applied in the field of auto parts, can solve the problems of poor oxidation resistance and water resistance, complicated preparation process, heat insulation of battery protective cover, general cold protection effect, etc., and achieve good cold protection effect , The preparation process is simple, the effect of light weight
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Embodiment 1
[0021] The preparation process of the battery heat shield provided by the present invention includes the following steps:
[0022] S1. The heat-insulating aluminum alloy material is rolled into a thin layer of heat-insulating aluminum alloy with a thickness of 0.2mm under an environment with a temperature of 600°C and a pressure of 32MPa, which is the outer layer of the battery heat shield;
[0023] S2. Take 0.2% of nano-titanium dioxide, 0.4% of nano-silica, 18% of hollow beads, 0.6% of adhesive, 30% of polypropylene, and the balance of polyurethane foam, and heat the above-mentioned weight percentage of raw materials at 170°C 40min, stirring and mixing while heating, the stirring speed is 400r / min, and the mixture is prepared;
[0024] S3. Inject the mixture obtained in step S2 into a calender, set the roller temperature to 180°C and the roller speed to 300r / min, and calender to obtain an inner layer of the heat shield with a thickness of 4mm;
[0025] S4. Lay the outer layer of the...
Embodiment 2
[0027] The preparation process of the battery heat shield provided by the present invention includes the following steps:
[0028] S1. The heat-insulating aluminum alloy material is rolled into a thin layer of heat-insulating aluminum alloy with a thickness of 0.15mm under an environment with a temperature of 800°C and a pressure of 25MPa, that is, the outer layer of the battery heat shield;
[0029] S2. Take 0.5% of nano-titanium dioxide, 0.3% of nano-silica, 20% of hollow microbeads, 0.3% of binder, 25% of polypropylene, and the balance of polyurethane foam, and heat the above-mentioned weight percentage of raw materials at 168°C 45min, stirring and mixing while heating, the stirring speed is 300r / min, the mixture is prepared;
[0030] S3. Inject the mixture obtained in step S2 into a calender, set the roller temperature at 165°C and the roller speed at 400r / min, and calender to obtain an inner layer of the heat shield with a thickness of 6mm;
[0031] S4. Lay the outer layer of the...
Embodiment 3
[0033] The preparation process of the battery heat shield provided by the present invention includes the following steps:
[0034] S1. The heat-insulating aluminum alloy material is rolled into a thin layer of heat-insulating aluminum alloy with a thickness of 0.25mm under an environment with a temperature of 500°C and a pressure of 35MPa, which is the outer layer of the battery heat shield;
[0035] S2. Take 0.1% of nano-titanium dioxide, 0.2% of nano-silica, 25% of hollow beads, 0.8% of adhesive, 40% of polypropylene, and the balance of polyurethane foam, and heat the above-mentioned weight percentage of raw materials at 175°C 30min, stirring and mixing while heating, the stirring speed is 600r / min, the mixture is prepared;
[0036] S3. Inject the mixture obtained in step S2 into a calender, set the roller temperature to 170°C and the roller speed to 320r / min, and calender to obtain the inner layer of the heat shield with a thickness of 4mm;
[0037] S4. Lay the outer layer of the h...
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