A complete set of equipment and method for preparing open-cell foam metal

Abstract

The invention relates to a complete set of equipment and method for preparing open-cell metal foam. The complete set of equipment is characterized by comprising a powder mixing machine, a mold concentric-square-shaped conveying device, a pressure device, an ejection device, a mechanical arm device, a pore former dissolving tank, a blast drying oven, a holding furnace, a cooling water pond and an operating platform. The operating platform comprises an upper table-board layer, a middle table-board layer and a lower table-board layer. The three table-board layers are sequentially distributed in a stair-step mode, and accordingly the operating platform is sequentially divided into a left region, a middle region and a right region from left to right by using the left edge and the right edge of the pressure device as the boundary. The upper table-board layer is provided with the powder mixing machine which is located at the left region. The pressure device is located in the middle region of the lower table-board layer, and the ejection device is located in the right region of the lower table-board layer. The mold concentric-square-shaped conveying device is composed of a mold charging area, a press forming area and a workpiece ejection area. The mold charging area is located below the powder mixing machine. The press forming area is located at the middle region and correspondingly arranged below a pressboard of the pressure device. The workpiece ejection area directly faces the ejection device and is located at the right region.

Description

technical field [0001] The invention relates to the technical field of open-cell alloy manufacturing, in particular to a complete set of equipment and a method for preparing open-cell foam metal. Background technique [0002] Open-cell metal foam is a new type of lightweight material that has developed rapidly in recent years. The special pore structure makes it have the characteristics of light weight, large specific surface area, high specific stiffness and specific strength, and good sound absorption and flame retardancy. At present, it has been widely used in transportation, architectural decoration, biomedicine and other fields. Because open-cell metal foam has so many excellent properties and wide applications, it has become a hot spot in the field of materials in recent years. [0003] At present, the preparation methods for open-cell aluminum foam mainly include powder metallurgy, investment casting and infiltration casting. The invention patent with the applicatio...

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Problems solved by technology

The invention patent with the application number CN201510368978.8 discloses a method for preparing a carbon nanotube reinforced aluminum foam composite material for vibration reduction and energy absorption. The method is based on urea (CO(NH 2 ) 2 ) is the powder metallurgy method of pore-forming agent to prepare open-cell foamed aluminum, its disadvantage is that the process flow of this method is complex, the production cost is high, the ammonia gas produced by urea decomposition is poisonous, affects human health, causes environmental pollution and this method cannot be applied For mass mechanization and continuous production

[0004] The industrial production of open-cell aluminum foam in my country is in its infancy. The lack of mechanized and continuous open-cell aluminum foam production equipment makes the current production basically in a manual or semi-manual operation state, resulting in large-scale open-cell aluminum foam pore structure. , Specific surface area, specific strength and specific stiffness are difficult to control, and the consistency of product performance cannot be guaranteed, which limits the promotion and application of products

Moreover, there is no continuity between the various equipment for producing open-cell aluminum foam by powder metallurgy, the process operation is scattered, the production process is discontinuous, and the production efficiency is low, resulting in high production costs.

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