Method for preparing carbon fiber-sewed hard plate thermal insulation material
A technology of thermal insulation material and carbon fiber, which is applied in the field of hot field material accessories for high-temperature furnaces. It can solve the problems of easy delamination, easy delamination of felt body, and poor processability of products, so that it is not easy to fall off and has good bonding performance. , Excellent anti-airflow erosion ability and anti-oxidation ability
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[0033] Example 1
[0034] Step 1: Use PAN-based carbon felt as the main raw material, and control the density of soft felt at 0.06g / cm 3 , The thickness is 4mm.
[0035] Step 2: Longitudinal sewing of carbon fiber, carbon fiber is PAN-based carbon fiber, the number of tows is 1K, the foam board tooling 1 is placed on the bottom layer, and then 12 layers of PAN carbon felt 2 are laid, and barbed needle 3 The carbon fiber 4 is vertically inserted into the soft felt in the longitudinal direction, and each layer of the carbon fiber soft felt is connected with carbon fibers to form a whole.
[0036] Step 3: Configure the resin impregnating liquid, the resin is furan resin, the solvent is alcohol, the resin and the solvent are mixed in a weight ratio of 1:2, and stirred evenly.
[0037] Step 4: Immerse the sewn carbon fiber felt in the resin impregnating solution prepared in step 3. The impregnation time is 2h until the resin impregnating solution completely submerges the carbon fiber felt....
Example Embodiment
[0044] Example 2
[0045] Step 1: Using PAN-based graphite felt as the main raw material, the density of the soft felt is controlled at 0.08g / cm 3 , The thickness is 10mm.
[0046] Step 2: Longitudinal sewing of carbon fiber, carbon fiber is PAN-based carbon fiber, the number of tows is 3K, the foam board tooling 1 is placed on the lowest layer, and then 6 layers of PAN-based graphite felt 2 are laid, using barb needles 3 The carbon fiber (4) is vertically and vertically inserted into the soft felt, and each layer of the carbon fiber soft felt is connected with carbon fibers to form a whole.
[0047] Step 3: Configure the resin impregnating liquid, the resin is phenolic resin, the solvent is acetone, the resin and the solvent are mixed in a weight ratio of 1:6, and stirred evenly.
[0048] Step 4: Immerse the sewn carbon fiber felt in the resin impregnating solution configured in step 3. The impregnation time is 6 hours until the resin impregnating solution completely submerges the ca...
Example Embodiment
[0055] Example 3
[0056] Step 1: Using viscose-based carbon felt as the main raw material, the density of soft felt is controlled at 0.14g / cm 3 , The thickness is 15mm.
[0057] Step 2: Longitudinal stitching of carbon fiber. The carbon fiber is PAN-based carbon fiber. The number of tows is 6K. Place the foam board tooling 1 and the same size on the bottom layer, and then lay 4 layers of viscose-based carbon felt 2, using barb stitches 3 Insert the carbon fiber 4 vertically and vertically into the soft felt, and connect the layers of the carbon fiber soft felt with carbon fibers to form a whole.
[0058] Step 3: Configure the resin impregnation liquid, the resin is phenolic resin, the solvent is alcohol, the resin and the solvent are mixed in a weight ratio of 1:15, and the mixture is evenly stirred.
[0059] Step 4: Immerse the sewn carbon fiber felt in the resin impregnating solution prepared in step 3. The impregnation time is 15h until the resin impregnating solution completely s...
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