Heat-resistant inorganic fiber
An inorganic fiber and weight technology, applied in the direction of inorganic raw material artificial filament, mechanical equipment, heat exchange equipment, etc., can solve the problems of secondary processed parts adhesion and melting
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Embodiment 1
[0122] Embodiment 1~196, comparative example 1
[0123] Fibers having the compositions shown in Table 1 were produced by a melting method, and the heat resistance and alumina reactivity were examined by the following methods. The results are shown in Table 1.
[0124] In addition, Example 4, 11, 19, 33, 40, 41, 47, 51, 54, 58, 59, 62, 63, 76, 77, 87, 93, 94, 102, 107, 111, 124, 143 , 149, 158, 161, 168, 176, 180, 190 are shown in figure 1 middle.
[0125] (heat resistance)
[0126] The heat shrinkage rate was measured as an evaluation of the heat resistance of the fiber.
[0127] The heat shrinkage rate of the fiber is measured before and after firing at a predetermined temperature of 600° C. to 1400° C. for 8 hours by producing a fleece or a blanket (length and width 50 mm, thickness 5 to 50 mm) from the fiber.
[0128] Two or more platinum pins were driven into the surface of each prepared sample, the distance between the platinum pins was measured before and after heat...
Embodiment 197～216
[0156] The fiber compositions shown in Table 2 were investigated as follows.
[0157] First, raw materials were mixed so as to have the composition shown in Table 2, and press processing was performed to obtain a molded body. This molded body was heated and melted, and the obtained body was quenched and pulverized to obtain a sample. Evaluation was performed by the following method using this sample. The fiber of Comparative Example 1 used for comparison was also evaluated in the same manner. The results are shown in Table 2.
[0158] (biosoluble)
[0159] 1 g of the sample was added to an Erlenmeyer flask (volume 300 mL) to which 150 mL of physiological saline at pH 4.5 was added. The flask was placed in a thermostat at 37° C., and the horizontal vibration at 120 revolutions per minute was continued for 2.5 hours. Thereafter, the amount (mg) of each element contained in the filtrate obtained by filtration was measured with an ICP emission analyzer, and the total was used...
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Abstract
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