Method for producing fused silica ceramic crucible
A technology of fused silica and ceramic crucibles, applied in glass manufacturing equipment, manufacturing tools, glass molding and other directions, can solve the problems of low stiffness, difficult to control curing time, long drying cycle, etc., to simplify the operation process, save energy and production. time, the effect of ensuring uniformity
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[0018] Example 1
[0019] The first step is to prepare particle-graded fused silica ceramic powder
[0020] According to 100Kg of fused silica ceramic powder, weigh 5Kg of quartz powder with a particle size of 0.1μm~1.0μm, 45Kg of quartz powder with a particle size of 0.1μm~1.0μm, and 55Kg of fused silica powder with a particle size of 10μm~100μm. Dry mixing is carried out in the mixer, and the mixing time is 5 hours to obtain the fused silica ceramic mixed powder used for making the crucible, which is ready for use.
[0021] The second step is to prepare the premix
[0022] The premix is prepared according to 100Kg. The preferred formula is as follows: 35Kg of ethyl silicate, 30Kg of absolute ethanol, 2.5Kg of isopropanol, 10Kg of propylene glycol methyl ether, 22Kg of acidic silica sol, 0.5Kg of hydrochloric acid, and add the above chemical reagents to the mixing tank , Adopt a strong stirring method to mix the above chemical reagents uniformly to obtain a mixed solution, and ado...
Example Embodiment
[0027] Example 2
[0028] The first step is to prepare particle-graded fused silica ceramic powder
[0029] According to 100Kg of fused silica ceramic powder, weigh the quartz powder with a particle size of 0.1μm~1.0μm to 10Kg, the quartz powder with a particle size of 0.1μm~1.0μm to 45Kg, and the fused silica powder with a particle size of 10μm~100μm to weigh 45Kg. Dry mixing is carried out in the mixer, and the mixing time is 3 hours to obtain the fused silica ceramic mixed powder used for making the crucible, which is ready for use.
[0030] The second step is to prepare the premix
[0031] The premix is prepared according to 100Kg. The preferred formula is as follows: 35Kg of ethyl silicate, 30Kg of absolute ethanol, 2.5Kg of isopropanol, 10Kg of propylene glycol methyl ether, 22Kg of acidic silica sol, 0.5Kg of hydrochloric acid, and add the above chemical reagents to the mixing tank , Adopt a strong stirring method to mix the above chemical reagents uniformly to obtain a mixe...
Example Embodiment
[0036] Example 3
[0037] The first step is to prepare particle-graded fused silica ceramic powder
[0038] According to 100Kg of fused silica ceramic powder, weigh 20Kg of quartz powder with a particle size of 0.1μm~1.0μm, 60Kg of quartz powder with a particle size of 0.1μm~1.0μm, and 20Kg of fused silica powder with a particle size of 10μm~100μm. Dry mixing is carried out in the mixer, and the mixing time is 2 hours to obtain the fused silica ceramic mixed powder used to make the crucible, which is ready for use.
[0039] The second step is to prepare the premix
[0040] The premix is prepared according to 100Kg. The preferred formula is as follows: 35Kg of ethyl silicate, 30Kg of absolute ethanol, 2.5Kg of isopropanol, 10Kg of propylene glycol methyl ether, 22Kg of acidic silica sol, 0.5Kg of hydrochloric acid, and add the above chemical reagents to the mixing tank , Adopt a strong stirring method to mix the above chemical reagents uniformly to obtain a mixed solution, and adopt...
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