Stripable paint for laser impact treatment
A laser shock and coating technology, applied in the coating and other directions, can solve the problems of easy peeling of the coating, affecting the laser processing effect, metal surface ablation, etc., to achieve the effects of low cost, improved laser shock effect, and convenient spraying
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example 1
[0031] [Example 1] The proportioning of the components of the coating is fine particle carbon powder 10%, binding agent A55%, wherein water, polyvinyl alcohol, silicone oil, ethyl silicate, silicone resin and additive weight composition ratio 6:1:1:2:2:1, special self-drying thinner 32%, component weight ratio 2:2:3:1:1, additive 3%, of which self-carbon black is used as a reinforcing agent, 928 Tempered paint stabilizer, dolomite attapulgite as filler, calcium naphthenate as drier, water-based paint defoamer, the weight ratio of the components is 1:1:4:1:1, and the coating thickness is 100 μm. Its drying speed is 12 minutes at room temperature, and the laser power is 2.67GW / cm 2 The schematic diagram of the surface of the sheet after laser shock is shown in Figure-1. The laser passes through the constrained layer of water and acts on the coating of the energy absorbing layer. A high-pressure shock wave propagating to the metal sheet is generated, causing the sheet to deform...
example 2
[0032] [Example 2] The proportioning of the component of the coating is fine particle carbon powder 10%, binding agent B65%, wherein water, polyvinyl alcohol, formaldehyde, sodium hydroxide, magnesium chloride, borax and additive weight composition ratio are 5: 2:1:1:1:2:1, special self-drying thinner 23%, solvent weight ratio 2:2:3:1:1, additive 2%, of which white carbon black is used as a reinforcing agent, 928 tempered paint Stabilizer, dolomite attapulgite clay as filler, calcium naphthenate as drier, water-based paint defoamer, the weight ratio of the components is 2:1:4:2:1, and the coating thickness is 100 μm. Its drying speed is 10 minutes at room temperature, and the laser power is 2.67GW / cm 2 , the schematic diagram of the sheet metal surface after laser shock is shown in Fig. As the thickness of the energy absorbing layer increases, the laser-induced shock wave pressure increases, and the deformation of the sheet metal also increases. However, when the thickness o...
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