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Continuous production method for foamed metal casting and rolling

A foam metal, production method technology, applied in the direction of metal rolling, metal rolling, metal processing equipment, etc., to achieve the effect of continuous production, low cost, and good bonding strength

Inactive Publication Date: 2005-09-21
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among the two methods, the melt foaming method has the most industrial application prospect at present. The research on this method has been basically mature, but the large-scale and continuous production of this method is still in the exploratory stage.

Method used

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  • Continuous production method for foamed metal casting and rolling
  • Continuous production method for foamed metal casting and rolling
  • Continuous production method for foamed metal casting and rolling

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Example 1: Aluminum-foam aluminum-aluminum sandwich panel

[0040] The panel is made of pure aluminum, and the foam metal core is made of AlSi6 aluminum alloy, which are melted at 720°C and 650°C respectively, and metal calcium is added to the AlSi6 aluminum alloy melt (the dosage is 2% of the mass of AlSi6 aluminum alloy, and the particle size is 1-1.5 mm), stir and thicken with a stirrer (rotating speed 500 rpm, time 15 minutes), then add 200 mesh titanium hydride (consumption is 1.2% of AlSi6 aluminum alloy quality), carry out foaming agent uniform mixing and stirring with a stirrer (speed 1000 rpm, time 120 seconds). Pure aluminum and AlSi6 aluminum alloy mixed uniformly with thickening and foaming agent are poured into a vertical two-roll rolling mill with 4 gears (roll diameter 300 mm, roll body length 800 mm, roll gap 10 mm), using 3 tons of rolling force Rolling at a speed of 1 m / min, the rolling and post-rolling cooling strengths are 20°C / s and 50°C / s respecti...

Embodiment 2

[0041] Example 2: Steel-foam aluminum-steel sandwich panel

[0042] Use 45 steel for the panel and pure aluminum for the core as raw materials, melt at 1450°C and 720°C respectively, add silicon carbide (the amount is 2% of the Al mass, particle size is 200 mesh) into the pure Al melt, and stir with a stirrer Viscosification (rotating speed 600 rpm, time 12 minutes), then add 300 mesh calcium carbonate (consumption is 2% of Al quality), carry out foaming agent uniform mixing and stirring with agitator (rotating speed 1200 rpm, time 100 seconds ). 45 steel, (thickened and evenly mixed with foaming agent) pure aluminum poured into the 4th plate vertical two-roll mill (roll diameter 300 mm, roll body length 800 mm, roll gap 10 mm), using 5 tons of rolling Rolling force and speed of 1.2 m / min, the roller and post-rolling cooling intensity are 30°C / sec and 50°C / sec respectively, and the thickness of 10mm can be continuously obtained (the middle pure aluminum is 8mm, and the two ou...

Embodiment 3

[0043] Embodiment three: aluminum foam

[0044] Use pure aluminum as the raw material, melt it at 720°C, add silicon carbide (the amount is 2% of the mass of Al, particle size 300 mesh) into the pure Al melt, stir and increase viscosity with a stirrer (speed 600 rpm, time 12 minutes), then add 100 mesh titanium hydride (consumption is 1% of Al quality), carry out foaming agent uniform mixing and stirring (rotating speed 1300 rev / mins, time 150 seconds) with agitator, (through viscosifying, foaming agent Evenly mixed) pure aluminum is poured into a vertical two-roll rolling mill with 2 plates (roll diameter 300 mm, roll body length 800 mm, roll gap 10 mm), using 2 tons of rolling force and a rolling speed of 3 m / min. and the cooling intensity after rolling are 15°C / sec and 20°C / sec respectively, a foamed aluminum precursor strip with a thickness of 10mm and a width of 600mm can be obtained, and then the strip is foamed at a temperature of 720°C for 4 minutes to obtain Aluminum f...

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Abstract

The invention relates to a method for rolling series manufacturing the foam metal, belongs to the cellular foam metal material preparing field. The technique is: a) melting the metal, adding the tackifier and stirring, b) adding the blowing agent and mixing them evenly, c) casting and rolling to get the foam metal forerunner, d) sending the forerunner to the eddy-current heating oven, heating and foaming, then get the required foam metal which is semi-solid. The method can produce with low energy consumption and has the control of the structure, and can produce the foam metal and sandwich plate in scale and series in the same assembly line.

Description

1. Technical field [0001] The invention relates to a metal foam sandwich panel (a metal plate on the surface and a metal foam core) and a preparation and continuous production method of the foam metal, belonging to the field of porous metal foam material preparation. 2. Background technology [0002] Metal foam sandwich panels and metal foam have the characteristics of light weight, high specific rigidity, noise reduction, shock absorption, heat preservation, and heat insulation. They have huge markets in the fields of construction, decoration, aviation, ships, noise reduction shock absorbers, and sporting goods. potential. [0003] At present, the preparation process of the known foamed metal sandwich panels is obtained by the following two methods (1) powder rolling to obtain a powder plate, which is then foamed after being composited with a metal plate; (2) foam obtained by other methods It is obtained by processing metal into plates and then connecting them with metal p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B1/46B21B15/00
Inventor 左孝青周芸史庆南孙加林
Owner KUNMING UNIV OF SCI & TECH
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