A kind of preparation technology of solar cell glass
A technology of solar cell and preparation process, applied in glass manufacturing equipment, glass molding, manufacturing tools, etc., can solve problems such as fragility and fragility, low sunlight acceptance rate, affecting photoelectric conversion efficiency and service life of solar cells, etc. Achieve the effects of not being easily broken, improving the visible light transmittance, and improving the photoelectric conversion efficiency
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Embodiment 1
[0014] A preparation process of solar cell glass, the process comprises the steps of:
[0015] Step 1) Weigh raw materials: Weigh 0.1 part of lanthanum oxide, 0.1 part of yttrium oxide, 0.3 part of barium oxide, 3 parts of kaolin, 5 parts of Glauber's salt, 6 parts of calcite, 8 parts of alumina and 35 parts of quartz sand according to parts by weight. ;
[0016] Step 2) Pulverizing and ball milling: each raw material is crushed into particles with a particle size of less than 1mm, and then the raw materials are mixed evenly, sent to a ball mill, and ground to a powder with a particle size of more than 100 mesh;
[0017] Step 3) Preparation of glass: first place the corundum crucible in a silicon-molybdenum rod furnace, heat up to 1300°C at a rate of 15°C / min, then add the powder obtained in step 2) into the corundum crucible, keep it warm for 60 minutes, and then heat it up for 10 Heat up to 1500°C at a rate of °C / min, keep it warm for 30 minutes, cast the molten glass into ...
Embodiment 2
[0019] A preparation process of solar cell glass, the process comprises the steps of:
[0020] Step 1) Weigh raw materials: Weigh 0.2 parts of lanthanum oxide, 0.2 parts of yttrium oxide, 0.4 parts of barium oxide, 4 parts of kaolin, 6 parts of Glauber's salt, 7 parts of calcite, 10 parts of alumina, and 45 parts of quartz sand according to parts by weight. ;
[0021] Step 2) Pulverizing and ball milling: each raw material is crushed into particles with a particle size of less than 1mm, and then the raw materials are mixed evenly, sent to a ball mill, and ground to a powder with a particle size of more than 100 mesh;
[0022] Step 3) Preparation of glass: first place the corundum crucible in a silicon-molybdenum rod furnace, heat up to 1300°C at a rate of 15°C / min, then add the powder obtained in step 2) into the corundum crucible, keep it warm for 60 minutes, and then heat it up for 10 Heat up to 1500°C at a rate of °C / min, keep it warm for 30 minutes, cast the molten glass ...
Embodiment 3
[0024] The performance test of the glass prepared by the embodiment of the present invention 1-2:
[0025] The thickness of the glass prepared in Example 1 and Example 2 is 3.2mm; the thermal expansion coefficient is the value showing the relative expansion rate of the sample to the original length, and is measured according to the DIN51045 standard; the flexural strength is measured by a ceramic testing machine; The hardness was measured by a digital microhardness tester, using a Vickers indenter, with a load of 100g and a time of 30s. See Table 1 for details:
[0026] Table 1
[0027] group Vickers hardness (HV 0.1 / 30) Coefficient of thermal expansion (×10 -7 / K) Flexural strength Gpa Example 1 514 74.1 83.4 Example 2 512 73.0 84.2
[0028] 2. Taking the 3.2mm sample as an example, the test results of the Cary500 spectrophotometer are as follows in Table 2:
[0029] Table 2
[0030] group Visible light transmittance% Solar...
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