Prepn process of pore forming agent for porous magnesium alloy and porous aluminium and its pore forming method

A technology of porous magnesium and porous aluminum, which is applied in the preparation of porous magnesium alloy and porous aluminum pore-forming agent and the field of pore-making

Inactive Publication Date: 2007-06-06
CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] The purpose of the present invention is to solve the technical problem that there is no effective preparation method that can simultaneously implement manual control on the pore size, through-porosity and pore wall thickness in the current metho...

Method used

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  • Prepn process of pore forming agent for porous magnesium alloy and porous aluminium and its pore forming method
  • Prepn process of pore forming agent for porous magnesium alloy and porous aluminium and its pore forming method
  • Prepn process of pore forming agent for porous magnesium alloy and porous aluminium and its pore forming method

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Experimental program
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Embodiment 1

[0038] The particle size of the calcium carbonate powder used is above 150 mesh. At the same time, the decomposition temperature range of the powder raw material is analyzed with a thermal analyzer. The starting point and the end point of the thermal decomposition temperature of the calcium carbonate powder raw material should be 650°C and 780°C. The particle size of the yttrium-rich mixed rare earth carbonate powder used is also above 150 mesh. At the same time, the weight percentage of the yttrium-rich mixed rare earth carbonate powder in the yttrium-rich mixed rare earth carbonate powder is: Y is 58.01%, La is 2.17%, and Ce is 0.69%, Pr is 1.10%, Nd is 5.44%, Sm is 3.68%, Eu is 0.20%, Gd is 6.8%, Tb is 1.41%, Dy is 9.08%, Ho is 1.86%, Er is 5.03%, Tm is 0.62%, Yb is 3.63%, Lu is 0.48%; the sum of the percentages of each single rare earth in the mixed rare earth is 100%.

[0039] Mix the purchased calcium carbonate powder and yttrium-rich mixed rare earth carbonate powder thorou...

Embodiment 2

[0049] The rest is the same as in Example 1. The difference is: ①The formula of the pore former, as shown in the specific data in Table 1. ②The preparation conditions of the pore former are shown in the specific data in Table 2. ③The pore-forming conditions of the porous magnesium alloy are as shown in the specific data in Table 3. ④ The density of the synthesized pore former particles and the density of the porous magnesium alloy intermediate material containing the particles are shown in Table 4 for the specific data. ⑤ The main indicators of the obtained porous magnesium alloy material are shown in the specific data in Table 5.

Embodiment 3

[0051] The rest is the same as in Example 1. The difference is: ①The formula of the pore former, as shown in the specific data in Table 1. ②The preparation conditions of the pore former are shown in the specific data in Table 2. ③The pore-forming conditions of the porous magnesium alloy are as shown in the specific data in Table 3. ④ The density of the synthesized pore former particles and the density of the porous magnesium alloy intermediate material containing the particles are shown in Table 4 for the specific data. ⑤ The main indicators of the obtained porous magnesium alloy material are shown in the specific data in Table 5.

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Abstract

The present invention relates to pore forming agent, and is especially pore forming agent for porous magnesium alloy and porous aluminum alloy and with controllable pore size, porosity and pore wall thickness and its preparation process and pore forming method. The pore forming agent is prepared with light calcium carbonate, RE carbonate, etc as material and through an extruding and pelletizing process. When it is used, the granular pore forming agent is used as the support and molten magnesium alloy or aluminum alloy is made to seepage flow into the pore forming agent so as to obtain porous magnesium alloy or aluminum alloy after treatment. The porous magnesium alloy and aluminum alloy preparing process can control the pore size, porosity and pore wall thickness effectively, and the alloy is used for sea water cell anode, metal rubber and other porous light metal product.

Description

Technical field [0001] The present invention relates to a method for preparing a pore former for porous magnesium alloy and porous aluminum and a method for forming pores, and in particular to a method for preparing porous magnesium alloy and porous aluminum that is easy to manually control the pore size, the degree of through-hole and the thickness of the pore wall at the same time. The preparation method of the pore agent and its pore making method. Background technique [0002] Metal rubber is a porous composite material obtained by compounding metal and rubber. The material has been gradually expanded to many civilian fields from its previous application in the lunar lander aerospace and military fields. Use metal porous materials instead of traditional stainless steel wires to be compounded with rubber, especially the light metal magnesium, aluminum or their alloys are made into porous magnesium, aluminum or their alloys with large pores, through holes, thick pore walls, and...

Claims

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Application Information

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IPC IPC(8): C22C1/08B22D23/04
Inventor 吴耀明董龙祥王立民文辉王建利彭秋明王立东
Owner CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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