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Automatic buffering gas foaming device used for preparation of foamed aluminum

A technology of gas foaming and foamed aluminum, which is applied in the field of foamed aluminum, can solve the problems of reducing the amount of bubbles in the melt and unqualified foamed aluminum, and achieve the effect of improving foaming quality, uniformity of bubbles, and improvement of bubble uniformity

Active Publication Date: 2017-09-26
嘉善凝溪建设有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical solution disclosed above adopts four layers of paddles to uniformly stir the inside of the melt. However, during the stirring process, part of the gas inside the melt overflows, reducing the amount of bubbles in the melt and producing unqualified hair. Bubble aluminum

Method used

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  • Automatic buffering gas foaming device used for preparation of foamed aluminum
  • Automatic buffering gas foaming device used for preparation of foamed aluminum
  • Automatic buffering gas foaming device used for preparation of foamed aluminum

Examples

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Embodiment 1

[0043] The embodiments are described below with reference to the accompanying drawings. The embodiments shown below do not limit the invention content described in the claims. required for the solution.

[0044] Such as figure 1 , 2 As shown, an automatic buffer gas foaming device for preparing foamed aluminum, including a foaming chamber 1, an air inlet pipe 2 fixed on the top of the foaming chamber 1, and an introduction pipe 3 located on the side of the air inlet pipe 2 . The output pipe 4 arranged at the bottom of the foaming chamber 1 and the control valve 5 installed on the output pipe 4 are characterized in that they also include:

[0045] Foaming mechanism 6, described foaming mechanism 6 is installed in the inside of described foaming chamber 1; Described foaming mechanism 6 comprises:

[0046] Air guide pipe 61, said air guide pipe 61 is hung vertically on the top of said foaming chamber 1, and its inside is hollow and provided with foaming gas from top to bottom;...

Embodiment 2

[0061] Components that are the same as or corresponding to those in the first embodiment use the reference numerals corresponding to those in the first embodiment. For the sake of simplicity, only the differences from the first embodiment are described below. The difference between this embodiment two and embodiment one is: as figure 1 , 6 As shown, the airflow guiding cover 7 is a bowl-shaped structure comprising:

[0062] The first curved surface 71, the opening of the first curved surface 71 faces upward, and there are symmetrically arranged aluminum liquid flow channels 711 on it; the opening of the first curved surface 71 faces upward, and the air duct 61 sprays air on its curved surface, generating a reaction force to cause it to swing At the same time, the foaming gas is diverged along the curved surface to improve the uniformity of the bubbles; when it swings to the position of the opposite curved surface, the air guide tube 61 is sprayed on the first curved surface 7...

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Abstract

The invention relates to an automatic buffering gas foaming device used for preparation of foamed aluminum. The automatic buffering gas foaming device comprises a foaming bin, an air inlet pipe arranged at the top end of the foaming bin, a guide-in pipe positioned on one side of the air inlet pipe, a delivery pipe arranged at the bottom of the foaming bin, a control valve mounted on the delivery pipe, a foaming mechanism and an air flow guide cover, wherein the foaming mechanism is mounted in the foaming bin; and the air flow guide cover is fixedly arranged in the foaming bin and positioned right below the foaming mechanism. According to the automatic buffering gas foaming device used for preparation of foamed aluminum, a foaming gas acts on the air flow guide cover through an air guide pipe, so as to generate a counter acting force on the air guide pipe, the air guide pipe generates deviation to drive swinging plates to change the inner pressure of melt and further generate a counter acting force on the foaming mechanism, the foaming mechanism is enabled to perform swinging movement, the swinging movement is in combination with the movement tracks of the swinging plates and a guide plate to change the flowing direction of gas in the melt, more gas flows in the melt to realize bubble supplement, and the technical problem that the bubble amount in the melt is reduced due to stirring is solved.

Description

technical field [0001] The invention relates to the field of foamed aluminum, in particular to an automatic buffer gas foaming device for preparing foamed aluminum. Background technique [0002] The existing manufacturing methods of foamed aluminum can be divided into: direct foaming method, precision casting method, bubble method, sintering method and electroplating method, etc. Among them, direct foaming method is the method commonly used in the production of foamed aluminum at present, and its basic principle It is to add a certain foaming agent into molten aluminum or aluminum alloy. The foaming agent decomposes at high temperature, releases gas, stays in the melt, and forms metal foam after solidification. The pores of the aluminum foam produced by this method are independent of each other and can be used as sound-absorbing cushioning materials, but its disadvantages are that the distribution of pores is poor and the size of the bubbles is too large. The time interval ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/08
CPCC22C1/08C22C1/086
Inventor 沈润良
Owner 嘉善凝溪建设有限公司