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Seepage apparatus for manufacturing foam metal by seepage casting method

A technology of metal foam and casting method, which is applied in the field of metal product manufacturing, can solve problems such as difficult determination of seepage end time, insufficient seepage, and waste of metal raw materials, so as to avoid over-seepage, improve production efficiency, and avoid insufficient seepage Effect

Active Publication Date: 2007-08-08
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

The infiltration casting method has the advantages of short production cycle, low cost, and simple process, but the current infiltration casting method has the following disadvantages: (1) It is difficult to accurately control the production, and it is easy to produce defects such as insufficient infiltration and excessive infiltration, 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

Method used

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  • Seepage apparatus for manufacturing foam metal by seepage casting method

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Experimental program
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Effect test

Embodiment 1

[0020] Referring to Fig. 1, the infiltration device of the present invention includes a heating melting chamber (101) for heating molten metal and an infiltration chamber (301) for infiltration casting. A percolation chamber (301) is provided on the upper part of the heating and melting chamber (101), and the heating and melting chamber (101) communicates with the percolation chamber (301) through a flow guide part (201), and the flow guide part (201) is funnel-shaped. Between the heating and melting chamber (101) and the seepage chamber (301), the outlet (205) of the flow guide member (201) is provided with a seepage chamber (301) and communicated with it, and the inlet (204) of the guide member extends Into the heating and melting chamber (101), close to the bottom of the heating and melting chamber. The heating and melting chamber is connected with the pressurizing device (102) through the pressurizing pipe (104), and the heating and melting chamber (101) is provided with a...

Embodiment 2

[0028] Example 2: Semi-continuous infiltration production of metal foam

[0029] Step 1: Assemble the heating and melting chamber (101), flow guide member (201) and percolation chamber (301) in sequence, and at the same time connect the heating and melting chamber to the pressurizing device (102)—the air compressor; prepare A plurality of seepage chambers (301) identical to those shown in Figure 1 (301); the second step—filling the seepage particles into all the seepage chambers; the third step—preheating the heating melting chamber and the seepage chamber; Step 4—Pour the qualified melt from other melting furnaces into the heating and melting chamber (101) from the feeding port (103), and seal the feeding port; Step 5—After reaching the preparation conditions, start pressurization The device (102) presses the melt in the heating melting chamber evenly into the seepage chamber for seepage casting; the sixth step—after reaching the seepage height, lift the seepage chamber that ...

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Abstract

The filtration device making foam metal comprises heating smelt chamber with pressurization device, guide flow component and filtration chamber. Metal melt in the heating smelt chamber enters filtration chamber after pressurization. It can make bid size foam metal product with rarely seen insufficient filtration, over filtration and so on, also with the realization of semi continuous filtration production.

Description

technical field [0001] The invention belongs to the field of metal product manufacture, and in particular relates to a percolation device for preparing foam metal by a percolation casting method. Background technique [0002] The unique pore structure of through-hole metal foam makes it widely used in various high-tech fields and general industrial fields such as aviation, aerospace, transportation, electronics, military industry, chemical industry, environmental protection, energy, machinery, biology, etc. wider attention. At present, the preparation methods of through-hole metal foam mainly include powder metallurgy, investment casting and infiltration casting. Due to the high production cost, the powder metallurgy method is not suitable for the production of foamed metals used in general industrial fields. The investment casting method usually chooses a three-dimensional penetrating foam sponge material with a certain gap as the matrix, and then fills the sponge-like fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D23/04
Inventor 周向阳李劼刘宏专丁凤其衷水平尚保卫
Owner 元泰达新材料江苏有限公司