Red granite type glass-ceramic and manufacture method thereof
A technology of glass-ceramics and a manufacturing method, applied in the field of building materials, can solve the problems of less red glass-ceramics, complex production process, difficult control of product color tone, etc., and achieves high mechanical and physical strength, good weathering resistance, and coloring elements. The effect of ion valence stabilization
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Embodiment 1
[0015] Embodiment 1: the composition ratio of the chemical composition weight part of this product is as follows: SiO 2 61.73 parts, CaO 13.02 parts, Al 2 o 3 6.96 parts, Na 2 O+K 2 O 5.22 parts, B 2 o 3 0.5 parts, BaO 4.56 parts, ZnO 6.73 parts, MgO 0.4 parts, Fe 2 o 3 0.14 parts, Cu 2 O+Sn 0.74 parts. According to this ratio, the raw materials are mixed evenly, put into the furnace, and the batch materials are melted under a weak reducing atmosphere at 1500 ° C. After clarification and homogenization, the glass liquid is water-quenched, dried, Grading to obtain particles with a particle size of 1 to 4mm. Then weigh 20kg of the dried material, put it into a mold with a size of 600mm×600mm×40mm, and put it into a shuttle kiln. It is carried out in a weakly oxidizing atmosphere with little wind. The first stage is the heating stage. The heating rate is raised to 650°C at a rate of 3.5°C / min, and the temperature is kept for 30 minutes. Then, the temperature is raised...
Embodiment 2
[0016] Embodiment 2: the composition ratio of the chemical composition weight part of this product is as follows: SiO 2 60.71 parts, CaO 12.24 parts, Al 2 o 3 6.83 parts, Na 2 O+K 2 O 5.41 parts, B 2 o 3 0.9 parts, BaO 6.63 parts, ZnO 6.26 parts, MgO 0.2 parts, Fe 2 o 3 0.09 parts, Cu 2 O+Sn 0.73 parts. According to this ratio, the raw materials are mixed evenly, put into the melting furnace, and the batch materials are melted in a weak reducing atmosphere at 1500 ° C. After clarification and homogenization, the glass liquid is water-quenched, dried, and classified to obtain 1-4mm grains. diameter particles. Then weigh 20kg of the dried pellets, put them into a mold with a release agent of 600×600×30mm in size, enter the shuttle kiln, and carry out under the atmosphere with more gas and less air supply. The first stage is In the heating stage, the heating rate is raised to 675°C at a rate of 3.5°C / min, and the temperature is maintained for 80 minutes, and then th...
Embodiment 3
[0017] Embodiment 3: the composition ratio of the chemical composition weight part of this product is as follows: SiO 2 61.24 parts, CaO 13.18 parts, Al 2 o 3 7.02 parts, Na 2 O+K 2 O 6.01 copies, B 2 o 3 0.8 parts, BaO 5.67 parts, ZnO 3.23 parts, MgO 0.35 parts, Fe 2 o 3 0.11 parts, Cu 2 O+Sn 2.39 parts. According to this ratio, the raw materials are mixed evenly, put into the melting furnace, and the batch materials are melted in a weak reducing atmosphere at 1500 ° C. After clarification and homogenization, the glass liquid is water-quenched, dried and classified. Particles with a particle size of 1 to 4 mm are obtained. Then weigh 20kg of the dried pellets, put them into a mold with a size of 600×600×30mm and equipped with a release agent, enter the shuttle kiln, and carry out in a weak oxidation atmosphere with more gas and less air supply. The first stage is the heating stage, with a heating rate of 3.8°C / min to 650°C, holding for 50 minutes, then raising th...
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Abstract
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