Method for preparing aluminum base foam material by utilizing negative pressure foaming
An aluminum-based foam material and negative pressure technology, which is applied in the field of porous metal materials, can solve the problems of effective control of the expansion process of foamed aluminum, and achieve the effect of saving the amount of foaming agent and improving the uniformity.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0050] A method for preparing an aluminum-based foam material with a target expansion rate of 315% by negative pressure foaming, the steps are as follows:
[0051] 1. Put 600g of industrial pure aluminum into a cylindrical steel crucible with a diameter of 100mm, place the crucible in an electric crucible furnace and heat it to melt the aluminum. Add calcium metal with a mass fraction of 2.5% aluminum in the molten aluminum, and stir for 10 minutes;
[0052] 2. Control the temperature in the furnace at 690°C, add titanium hydride with a mass fraction of 0.1% aluminum at a stirring speed of 1500 rpm, and continue stirring for 6 minutes; after the stirring is stopped, the expansion rate of the aluminum liquid is 113%. Under the continuous heat preservation, the expansion rate of aluminum liquid has no obvious change;
[0053] 3. Transfer the crucible to a stainless steel foaming chamber with a closed lid with a quartz observation window, use a laser rangefinder to measure the h...
Embodiment 2
[0057] A kind of target density is 0.65gcm prepared by negative pressure foaming -3 The method for the aluminum-based foam material member, the steps are as follows:
[0058] 1. Put A356 aluminum alloy with a mass of 700g into a steel crucible and heat it in an electric furnace to melt the aluminum alloy. At a constant temperature of 740°C and a stirring speed of 800 rpm, add a mass fraction of Aluminum 3.0% calcium metal, stir for 5 minutes;
[0059] 2. Control the temperature in the furnace at 710°C, add 0.4% titanium hydride with a mass fraction of aluminum at a stirring speed of 2000 rpm, and continue stirring for 6 minutes;
[0060] 3. Transfer the crucible to a stainless steel foaming chamber with a closed lid with a quartz observation window, use a laser rangefinder to measure the height of the melt through the quartz window, start the pumping device, and monitor the pressure in the foaming chamber at the same time and the height of the foam body, the pressure control...
Embodiment 3
[0065] A method for preparing an aluminum-based foam material with a target expansion rate of 321% by negative pressure foaming, the steps are as follows:
[0066] 1. Put 600g of industrial pure aluminum into a steel crucible, place the crucible in an electric crucible furnace to heat the aluminum to melt, and keep the constant temperature at 730°C; under the condition of a stirring speed of 1000 rpm, pour it into the molten aluminum successively Add 1.2g metal magnesium as the alloy composition and the copper-plated short carbon fiber whose volume fraction is 0.5% of aluminum, and continue to stir for 4 minutes;
[0067] 2. Control the temperature in the furnace at 700°C, add calcium carbonate with a mass fraction of 0.1% aluminum at a stirring speed of 1700 rpm, and continue stirring for 8 minutes; after the stirring stops, the expansion rate of the aluminum liquid is 110%. Under the continuous heat preservation, the expansion rate of aluminum liquid has no obvious change; ...
PUM
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