Metal-ceramic gradient composite armor and manufacturing method thereof
An armor and gradient technology, applied in armor, protective equipment, ceramic molding machines, etc., can solve the impact of composite armor on the ability to resist multiple bullets, the mismatch of sound resistance between layers and stress concentration, and the cracking of the bonding surface of the panel and the back panel, etc. problem, to achieve the effect of solving the problem of bond strength, simple manufacturing process, and improving the protection factor
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[0030] Such as figure 2 , the preparation method of the gradient composite armor of the metal casting ceramic ball of the present invention, comprises the following steps:
[0031] (1) Ceramic surface pretreatment stage:
[0032] 1. Degreasing: After soaking in anhydrous ethanol solution for 15 minutes, place the ceramic ball in deionized water for ultrasonic cleaning for 10 minutes and dry naturally.
[0033] 2. Coarsening: Use analytical pure hydrofluoric acid and distilled water to prepare a HF solution with a mass fraction of 25%, and soak ceramic balls in it for 30 minutes for roughening treatment.
[0034] 3. Sensitization: with SnCl-containing 2 ·H 2 Soak in the sensitizing solution of O and HCl at room temperature for 5 minutes.
[0035] 4. Activation: with PdCl-containing 2 Soak in the activation solution of HCl for 3 minutes.
[0036] 5. Reduction: use NaH 2 PO 2 ·H 2 Soak in the reducing solution of O for 2 minutes to reduce the residual Pd on the surface ...
Embodiment 1
[0050] Soak silicon carbide ceramic balls with diameters of 5mm, 4mm, 3mm, and 2mm in absolute ethanol solution for 15 minutes to remove oil, then place them in deionized water for ultrasonic cleaning for 10 minutes and dry naturally. Use analytical pure hydrofluoric acid and distilled water to prepare a HF solution with a mass fraction of 25%, and soak ceramic balls in it for 30 minutes for roughening treatment. with SnCl 2 ·H 2 Soak in the sensitizing solution of O and HCl at room temperature for 5 minutes. with PdCl 2 Soak in the activation solution of HCl for 3 minutes. with NaH 2 PO 2 ·H 2 Soak in the reducing solution of O for 2min. After washing with deionized water, let it dry naturally. Take an appropriate amount of silver paste and apply it on the screen printing plate, place the ceramic ball under the screen printing plate, and use a brush to evenly print the silver paste on the surface of the ceramic ball through the screen. Place the printed ceramic balls...
Embodiment 2
[0060] Alumina ceramic balls with diameters of 20 mm and 19 mm were soaked in absolute ethanol solution for 15 minutes to remove oil, then placed in deionized water for ultrasonic cleaning for 10 minutes and dried naturally. Use analytical pure hydrofluoric acid and distilled water to prepare a solution with a mass fraction of 25% HF, and soak the ceramic balls in it for 30 minutes for roughening treatment. with SnCl 2 ·H 2 Soak in the sensitizing solution of O and HCl at room temperature for 5 minutes. with PdCl 2 Soak in the activation solution of HCl for 3 minutes. with NaH 2 PO 2 ·H 2 Soak in the reducing solution of O for 2min. After washing with deionized water, let it dry naturally. Take an appropriate amount of silver paste and apply it on the screen printing plate, place the ceramic ball under the screen printing plate, and use a brush to evenly print the silver paste on the surface of the ceramic ball through the screen. Place the printed ceramic balls in an...
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Abstract
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