Deformation control method in rigid heat-insulating tile coating forming process
A molding process and deformation control technology, which is applied in the field of preparation of aircraft thermal protection materials, can solve the problems of deformation of the base material, the specific size and deformation of the sample are not given, and the deformation of the rigid heat insulation tile is not specifically mentioned. To achieve the effect of reducing thermal stress, reducing deformation, avoiding damage and destruction
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[0047] Example 1:
[0048] The thickness of the sample is required to be 10mm, and the high temperature sintering heat treatment adopts the overall sintering heat treatment method.
[0049] The ceramic matrix material of the rigid insulation tile is made of mixed fibers of 80% oxidized fiber and 20% mullite fiber, with a density of 0.33g / cm 3 , Processed into a 200×200×20mm sample, the mass ratio of each component in the coating slurry is: borosilicate glass powder: boron oxide: tantalum disilicide: clay: water = 60:30:8:2: 500, mixed with a ball mill for 3 hours, and coated on the upper surface (the upper and lower surface area is the largest) and side of the base material after coating, and the side is coated with 6mm, the surface density of the coating obtained after spraying and drying is 0.025g / cm 2 , Carry out integral sintering heat treatment at 1150°C in a high temperature furnace for 15 minutes. After cooling to room temperature, use a milling machine to process the formed ...
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[0050] Example 2:
[0051] The thickness of the sample is required to be 15mm, and the high temperature sintering heat treatment adopts the overall sintering heat treatment method.
[0052] The ceramic matrix material of the rigid insulation tile is made of mixed fibers of 80% oxidized fiber and 20% mullite fiber, with a density of 0.33g / cm 3 , Processed into a 200×200×20mm sample, the mass ratio of each component in the coating slurry is: borosilicate glass powder: boron oxide: tantalum disilicide: clay: water = 60:30:8:2: 500, mixed with a ball mill for 3 hours, and coated on the upper surface (upper and lower surface area) and sides of the base material after coating, and the side is coated with 10mm, the surface density of the coating obtained after spraying and drying is 0.025g / cm 2 , Carry out integral sintering heat treatment at 1150℃ for 15min in a high temperature furnace, after cooling to room temperature, final processing to a thickness of 15mm by a milling machine. Acco...
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[0053] Example 3:
[0054] The thickness of the sample is required to be 10mm, and the high temperature sintering heat treatment adopts single-sided heating treatment.
[0055] The ceramic matrix material of the rigid insulation tile is made of mixed fibers of 80% oxidized fiber and 20% mullite fiber, with a density of 0.33g / cm 3 , Processed into a 200×200×20mm sample, the mass ratio of each component in the coating slurry is: borosilicate glass powder: boron oxide: tantalum disilicide: clay: water = 60:30:8:2: 500, mixed with a ball mill for 3 hours, and coated on the upper surface (the upper and lower surface area is the largest) and side of the base material after coating, and the side is coated with 6mm, the surface density of the coating obtained after spraying and drying is 0.025g / cm 2 , The upper surface is sintered and heat-treated at 1150°C at the entrance of the high-temperature furnace for 15 minutes, cooled to room temperature, and finally processed to a thickness of 10m...
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