Posted by: Zhou HanPing2021-10-21Comments Off on Aluminum Anodizing Sealing Process
List of Contents
Aluminum Anodizing Sealing Process
The aluminum oxide film is a porous film. Regardless of whether it is colored or not, it must be sealed before being put into use, so as to improve its corrosion resistance and weather resistance.
Aluminum Anodizing Sealing Process
There are three types of treatment methods, namely high temperature hydration reaction sealing, inorganic salt sealing and organic sealing.
(1) High temperature water seal
This method uses the hydration reaction of aluminum oxide film and water to change the amorphous film into a hydrated crystalline film:
The hydration reaction can be performed at normal temperature and high temperature, but at high temperature, especially at the boiling point, the resulting hydrated crystalline film is a very stable and irreversible crystalline film. Therefore, the most commonly used aluminum oxide film sealing treatment is boiling water. Process or steam process.
(2) Sealed by inorganic salt
The inorganic salt method can improve the fastness of organic coloring dyes, so it is commonly used in chemical coloring methods.
1. Acetate method
2. Silicate method
(3) Organic closed method
This is to immerse the aluminum oxide film by oil immersion, varnishing, or painting, etc., because the cost is higher and the process is increased, it is not widely used. Most of the two methods are used, and the first high temperature Hydration is mainstream.
Reprint Statement: If there are no special instructions, all articles on this site are original. Please indicate the source for reprinting:https://www.cncmachiningptj.com/，thanks！
PTJ® provides a full range of Custom Precision cnc machining china services.ISO 9001:2015 &AS-9100 certified. 3, 4 and 5-axis rapid precision CNC machining services including milling, turning to customer specifications,Capable of metal & plastic machined parts with +/-0.005 mm tolerance.Secondary services include CNC and conventional grinding, drilling,die casting,sheet metal and stamping.Providing prototypes, full production runs, technical support and full inspection.Serves the automotive, aerospace, mold&fixture,led lighting,medical,bicycle, and consumer electronics industries. On-time delivery.Tell us a little about your project’s budget and expected delivery time. We will strategize with you to provide the most cost-effective services to help you reach your target,Welcome to Contact us ( [email protected] ) directly for your new project.
2021-12-27Sponsored ContentComments Off on 3D printed high-strength titanium alloy comes out
Metal Additive Manufacturing (MAM) is revolutionizing production methods in many industries, especially in the aerospace, automotive, and biomedical fields. However, there are still many technical pro...
2021-12-27Sponsored ContentComments Off on Converting 4D printing materials underwater
The Tibbits Self-Assembly Laboratory of the Massachusetts Institute of Technology proved that specific geometric shapes can generate self-organized sandbanks and beaches through research conducted in ...
2021-12-26Sponsored ContentComments Off on The most complete 3D printing material in history
1. New 3D printing materials created by metallurgy for reference In the journal Nature in January 2019, scientists from Imperial College London and the University of Sheffield in the UK reported how t...
Among all the materials that can be 3D printed, glass is still one of the most challenging materials. However, scientists at the Research Center of the Swiss Federal Institute of Technology in Zurich ...
2021-12-25Sponsored ContentComments Off on Conductive folding metal materials come out!
According to foreign media New Atlas, when talking about flexible robotic equipment, some devices that are as soft as rubber or foldable like origami may come to mind. Due to the use of conductive fol...
2021-12-24Sponsored ContentComments Off on A new alloy that will overcome the difficulty of producing super engineering plastics
Heat-resistant, wear-resistant and corrosion-resistant plastic parts in heavy vehicles or industrial machinery are called super engineering plastics. Their more powerful performance comes from a compl...
2021-12-24Sponsored ContentComments Off on Can be used as a 3D printing support medium to self-repair milky glass
On May 13, 2020, Antarctic Bear learned from foreign media that researchers from Taiwan’s National Central University have developed a self-healing emulsion glass that is resistant to ultraviolet rays...
2021-12-23Sponsored ContentComments Off on Alumina coating can protect the positive electrode of lithium-ion battery
According to foreign media reports, Rice University postdoctoral researcher Anulekha Haridas used the constructed lithium-ion battery to test the impact of alumina coating on the positive electrode. T...
2021-12-23Sponsored ContentComments Off on Ultra-high stability nanocrystals found in metals
Nanometals have poor stability due to the introduction of a large number of grain boundaries. Generally speaking, the crystal grain growth temperature of nanocrystals is much lower than the recrystall...
According to foreign media Techspot, researchers at the Applied Photonic Device Laboratory (LAPD) of the Faculty of Engineering at the Federal Institute of Technology in Lausanne (EPFL) in Switzerland...