Supporting plate for rotating seat
A support plate and aluminum alloy technology, which is applied in the field of alloy materials, can solve problems such as poor strength and toughness, low stress, and poor toughness, and achieve the effects of eliminating microscopic defects, good interface bonding force, and excellent mechanical properties
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Embodiment 1
[0028] 3D printing silicon carbide skeleton: the silicon carbide powder, phenolic resin powder and acetone are ball-milled and then dried, and printed in a selective laser sintering molding equipment; wherein, the ball milling time is 10 h; the drying temperature is 60 ° C, and the drying time is 24 h The mass ratio of the silicon carbide powder to the phenolic resin powder is 2:1; the scanning distance in the selective laser sintering molding equipment is 0.1mm, the laser power is 17W, the layer thickness is 0.1mm, and the scanning speed is 1500mm / min. Body preheating temperature 20°C;
[0029] Curing and impregnation: After the silicon carbide skeleton is cured, it is immersed in the resin solution; the curing temperature is 180°C, and the curing time is 45 minutes;
[0030] Galvanizing: electroplating zinc layer on the impregnated silicon carbide skeleton and performing passivation treatment; the concentration of sulfuric acid in the electroplating solution is 25mL / L, and t...
Embodiment 2
[0034] 3D printing silicon carbide skeleton: the silicon carbide powder, phenolic resin powder and acetone are ball-milled and then dried, and printed in a selective laser sintering molding equipment; wherein, the ball milling time is 10.5h; the drying temperature is 62°C, and the drying time is 24.2h; the mass ratio of silicon carbide powder and phenolic resin powder is 2.05:1; the scanning distance in the selective laser sintering molding equipment is 0.105mm, the laser power is 17.2W, the layer thickness is 0.105mm, and the scanning speed is 1520mm / min, powder preheating temperature 25°C;
[0035] Curing and impregnation: After the silicon carbide skeleton is cured, it is immersed in the resin solution; the curing temperature is 185°C, and the curing time is 46 minutes;
[0036] Galvanizing: electroplating zinc layer on the impregnated silicon carbide skeleton and performing passivation treatment; the concentration of sulfuric acid in the electroplating solution is 26mL / L, a...
Embodiment 3
[0040] 3D printing silicon carbide skeleton: the silicon carbide powder, phenolic resin powder and acetone are ball-milled and then dried, and printed in selective laser sintering molding equipment; wherein, the ball-milling time is 11 hours; the drying temperature is 65°C, and the drying time is 24.5 h; the mass ratio of silicon carbide powder and phenolic resin powder is 2.1:1; the scanning distance in the selective laser sintering molding equipment is 0.11mm, the laser power is 17.5W, the layer thickness is 0.11mm, and the scanning speed is 1550mm / min , the powder preheating temperature is 30°C;
[0041] Curing and impregnation: After the silicon carbide skeleton is cured, it is immersed in the resin solution; the curing temperature is 190°C, and the curing time is 46.5 minutes;
[0042] Galvanizing: electroplating zinc layer on the impregnated silicon carbide skeleton and performing passivation treatment; the concentration of sulfuric acid in the electroplating solution is...
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