Method for producing resolvable hollow deformed foam aluminium alloy by secondary foaming
A foamed aluminum alloy and aluminum alloy technology, which is applied in the field of secondary foaming to prepare dissolvable hollow special-shaped foamed aluminum alloys, can solve the problems that foamed aluminum special-shaped parts have not been reported, and achieve low cost, uniform pore structure, and method simple effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0020] The solid dissolvable preform preparation material is sintered from industrial salt (NaCl) or clay.
[0021] Example a, using saturated potassium carbonate solution as a binder, agglomerating industrial salt powder into a mold with a specific inner cavity, sintering at 200-350 degrees, and demoulding to form a solid dissolvable preform. The bonding effect is better when using saturated solution of potassium carbonate. Cracking is avoided when heating, and the surface of the prefabricated part is smooth, which is conducive to immersion in the foamed aluminum melt.
[0022] In Example b, a similar method can be used to agglomerate and sinter the clay with water to achieve the same effect.
Embodiment 2
[0024] Step 1: Heat the aluminum alloy to melt, add calcium equivalent to 0.5% to 5% of the weight of the aluminum alloy to the molten aluminum alloy, stir evenly for 20 to 800 seconds to increase viscosity; then add calcium equivalent to the weight of the aluminum alloy Stir 0.5% to 5% titanium hydride at a speed of 800 to 5000r / m for 20 to 400 seconds, so that the titanium hydride is evenly mixed in the melt, and then put out the stirring blade;
[0025] The second step: quickly place the dissolvable ball in the foamed aluminum alloy melt and ensure that it is completely submerged in the melt to form a closed body. Rapid cooling of the primary foamed aluminum alloy melt with built-in salt balls to obtain a secondary foamed aluminum alloy prefabricated part with a porosity lower than 65.5%;
[0026] Step 3: Heat the secondary foamed aluminum alloy preform with built-in dissolvable balls to a temperature of 300°C to 650°C for 10 to 50 minutes, so that the aluminum alloy prefor...
Embodiment 3
[0030] Step 1: Heat the aluminum alloy to melt, add calcium equivalent to 0.5% of the weight of the aluminum alloy to the molten aluminum alloy, stir evenly for 20 seconds to increase viscosity; then add 0.5% of the weight of the aluminum alloy to titanium hydride , stirring at a speed of 800r / m for 20 seconds, so that the titanium hydride is evenly mixed in the melt, and then put out the stirring paddle;
[0031] The second step: quickly place the dissolvable ball in the foamed aluminum alloy melt and ensure that it is completely submerged in the melt to form a closed body. Rapid cooling of the primary foamed aluminum alloy melt with built-in salt balls to obtain a secondary foamed aluminum alloy prefabricated part with a porosity lower than 65.5%;
[0032] Step 3: Heat the secondary foamed aluminum alloy preform with built-in dissolvable balls to a temperature of 300°C for 10 minutes so that the aluminum alloy preform can avoid the phenomenon of uneven pore size and porosity...
PUM
Property | Measurement | Unit |
---|---|---|
diameter | aaaaa | aaaaa |
pore size | aaaaa | aaaaa |
pore size | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com