Device for preparing special-shaped metal-based porous composite material

A composite material and special-shaped metal technology, applied in metal processing equipment, casting molds, cores, etc., can solve the problems of waste of metal raw materials, insufficient seepage, difficult operation, etc., to avoid crystallization looseness and shrinkage cavity, and improve production efficiency , Improve the effect of mechanical properties

Active Publication Date: 2012-07-25
元泰达新材料江苏有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current infiltration casting method has the following disadvantages: (1) it is difficult to accurately control the production, and defects such as insufficient infiltration and excessive infiltration are prone to occur, resulting in a large amount of waste of metal raw materials; (2) the operation is difficult
For example, in the case of vacuum seepage, the vacuuming time is generally several seconds to more than ten seconds, which is difficult to control accurately; when the molten metal is poured into the mold, the filler particles are impacted, which is easy to form depressions and affect the shape of the product; seepage Not sure when it will end
(3) It is difficult to prepare large-sized seepage products; (4) Usually batch production
In order to avoid the casting defects of the existing infiltration method, the applicant of the present invention once applied for a patent

Method used

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  • Device for preparing special-shaped metal-based porous composite material
  • Device for preparing special-shaped metal-based porous composite material
  • Device for preparing special-shaped metal-based porous composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The device of the present invention is used to prepare a sandwich structure sandwich panel.

[0033]The sandwich structure sandwich panel described in this embodiment refers to the LY12 panel whose panel material is 1.26mm thick, the core material is aluminum / alumina hollow sphere composite material, and the particle size of the alumina hollow spheres used is 1.6-2.0mm , using 6063 aluminum alloy as the aluminum in the core material. attached figure 2 Schematic of the equipment used to prepare the materials for this example. The specific implementation of this embodiment includes the following steps:

[0034] (1) Grind the surface of the aluminum panel S12 with coarse sandpaper to remove the scale, and use a coarse steel wire wheel to grind out irregular lines with a depth of 0.1-0.3mm;

[0035] (2) The mold S11 is hoisted into the casting chamber S09, and a graphite paper gasket S17 is placed between the bottom of the mold and the casting chamber; a breathable part...

Embodiment 2

[0045] The through-hole foamed lead material is prepared by using the device of the present invention.

[0046] The pore-forming material used in this implementation is KCl particles with a particle size of 1.6-2.0 mm, and a Pb-Ag (0.8%) alloy is used as the matrix metal. attached Figure 5 Schematic of the equipment used to prepare the materials for this example. The specific implementation of this embodiment includes the following steps:

[0047] (1) Hang the mold S11 into the casting chamber S09, and place a graphite paper gasket S17 between the bottom of the mold and the casting chamber; place a breathable partition S13 on the bottom of the mold S11; then fill the KCl particles S10 into the mold S11 middle;

[0048] (2) Cover the mold cover plate S15 with air holes S16 on the top of the mold, then place several springs S14 on the mold cover plate S15, and then tightly connect the casting chamber sealing cover plate S04 to the casting chamber cylinder S07 through bolts S...

Embodiment 3

[0055] The device of the invention is used to prepare a sandwich structure arch door frame.

[0056] Sandwich arch door frame described in this embodiment, the surface material is 304 stainless steel with a thickness of 0.5mm, the core material is aluminum / alumina hollow sphere composite material, the particle size of the alumina hollow spheres used is 1.6-2.0mm, and 6063 aluminum is used alloy as aluminum in the core material. Figure 8 Schematic of the equipment used to prepare the materials for this example. The specific implementation of this embodiment includes the following steps:

[0057] (1) Weld a hollow arch door frame with stainless steel plate (see Figure 9 ), the upper part of the door frame has a charging port M01, the bottom of the door frame column is sealed with a bottom plate M03 with holes, and the aperture of the small hole on the bottom plate M03 is 1-1.5mm; the two door frame columns are sealed with refractory material M02. Alumina hollow balls are lo...

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Abstract

The invention discloses a device for preparing a special-shaped metal-based porous composite material. The device comprises a melt preparation system, a pressurization system, a diversion component, a casting system and a vacuumizing system, wherein the diversion component is communicated with the melt preparation system and the casting system, and a melting crucible in the melt preparation system is directly communicated with the pressurization system; and a casting chamber in the casting system is connected with the vacuumizing system. After negative pressure is formed in the casting chamber by vacummizing, a metal melt in the melting crucible enters a casting chamber mold filled with pore-forming particles through the diversion component; and after the melt in the casting chamber mold reaches the preset height, the melt in the casting chamber mold is condensed under the dual functions of the negative pressure in the casting chamber and the positive pressure in the melting crucible. By the method, complex special-shaped porous metal members can be prepared, and the defects of common insufficient seepage, excessive seepage and the like in the conventional casting method, and the defects of crystallization porosity inside castings and the like can be effectively overcome.

Description

technical field [0001] The invention relates to a device for preparing a special-shaped metal-based porous composite material substantially free of casting defects. Background technique [0002] Metal-based porous materials are a kind of composite materials with a large number of bubbles inside and the bubbles are distributed in the continuous metal phase to form a pore structure. It organically combines the metal characteristics of the continuous phase aluminum and the pore characteristics of the dispersed phase pores, making it It has the characteristics of light density, good energy absorption performance, unique acoustic and thermal performance, and excellent electromagnetic shielding, which also makes it have great application potential in the fields of construction, rail transit, machinery manufacturing, and aerospace. [0003] Since Soknics.B etc. added mercury to the molten metal in 1948 and obtained metal materials with holes, people have developed a variety of poro...

Claims

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Application Information

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IPC IPC(8): B22D18/06B22C9/22
Inventor 周向阳袁跃民杨娟高万明刘宏专何静
Owner 元泰达新材料江苏有限公司
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