High-strength and soluble metal-based composite material and preparation method thereof
A composite material, metal-based technology, applied in the field of high-strength, soluble metal-based composite materials and preparation, can solve the problems of increased cost, low construction efficiency, small casing diameter, etc.
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Embodiment 1
[0078] In this embodiment, the aluminum metal powder, magnesium metal powder, binder, interface coupling agent, plasticizer, and reinforced carbon fiber are mixed evenly according to the mass ratio of 9:51:12:2:1:25, and then poured into the composite powder Add a small amount of polyvinyl alcohol solution with a mass concentration of 4% to the body slurry, and add 2ml of polyvinyl alcohol solution per 100ml of composite powder slurry. The mixture is heated in the barrel of the injection machine to become a rheological plastic material, and injected into the mold under an appropriate injection pressure. The extrusion port of the mold is a gap with an opening width of 0.3mm, and the extrusion pressure is 2.5MPa to obtain a thickness of 0.25mm. mm flake sintered precursor. Subsequently, the sintered precursor was dried in a tube furnace to remove the liquid medium, and the drying temperature was 140°C for 4 hours. The dried sintered precursors are laminated into a mold, followe...
Embodiment 2
[0080] The reinforcement carbon fiber is added in the anionic surfactant (the anionic surfactant is preferably one or more of sodium hexametaphosphate, sodium lauryl sulfate, sodium lignin sulfonate, sodium cetylbenzene sulfonate species compound), the mass ratio of reinforced carbon fiber to anionic surfactant is 5:1, ultrasonically dispersed for 1.5 to 3 hours, and then centrifugally cleaned with ethanol to obtain modified reinforced carbon fiber. Mix aluminum metal powder, magnesium metal powder, binder, interfacial coupling agent, plasticizer, and modified reinforced carbon fiber according to the mass ratio of 10:50:14:2:2:24, and pour into the composite powder Add a small amount of polyvinyl alcohol solution with a mass concentration of 4% to the slurry, and add 2ml of polyvinyl alcohol solution per 100ml of composite powder slurry. The mixture is heated in the barrel of the injection machine to become a rheological plastic material, and injected into the mold under an ap...
Embodiment 3
[0082] The aluminum-magnesium metal powder and the reinforced carbon fiber are evenly mixed into the binder with the composition of 35% polyurethane, 40% methylcellulose and 25% polyethylene glycol to obtain a premix. Mix aluminum, magnesium metal powder, carbon fiber, binder, interfacial coupling agent, and plasticizer in the premix evenly according to the mass ratio of 8:52:14:2:2, and mix it on the mixer at a temperature of 70°C After mixing for 1 hour, it becomes a uniform feeding material; after the feeding material is granulated, it is injected and molded on an injection molding machine at a temperature of 170°C and a pressure of 90 MPa for 60 seconds to obtain a corresponding molded body; the molded body is thermally debonded by extraction After curing, sintering was carried out at 1100°C under vacuum conditions and kept for 1.5 hours to obtain the corresponding metal-based magnesium-aluminum composite material.
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