Skip to main content

Posts

Showing posts with the label Aluminium profile

Analysis on Production Process of Aluminium Alloy 6063 Extruded Profiles (Part 2)

https://haluminium.com/ Homogenizing Treatment In Alloy 6063, the dissolving temperature of Mg2Si is 520 ℃, and Al-Mg-Si three-phase eutectic temperature is 595 ℃, the actual burning temperature is lower than 595 ℃, so homogenization should be treated between 520-595 ℃. After homogenization, the following changes occurred in Alloy 6063 structure: 1), Coring Segregation disappeared. 2), Mg2Si is dissolved in α (Al12Fe3Si2), and unbalance eutectic disappeared. 3), The acicular β(Al9Fe2Si2) is transformed into a spherical α (Al12Fe3Si2), and the iron-containing phase particles are refined. Through the above changes, the extrusion performance and aluminium profile quality will be greatly improved: The disappearance of coring segregation will reduce the inhomogeneity of metal flow during extrusion and improve the surface finish of extruded profiles; The decrease and refining of large unbalance phase Mg, Si particles and Al-Fe-Si phase particle in the structure, will redu...

Analysis on Production Process of Aluminium Alloy 6063 Extruded Profiles (Part 1)

The 6××× series aluminium alloy extruded profile is widely used in construction, transportation, electronics and other industries due to its good corrosion resistance and comprehensive strength. Among them, alloy 6063 belongs to Al - Mg - Si system is not sensitive to stress corrosion of aluminium alloy, with moderate strength, excellent compression performance, good corrosion resistance, weldability and good processability, become the most widely used building material materials. Chemical Composition Analysis of Alloy 6063 For the chemical composition of alloy 6063, I have had two previous articles devoted to this discussion:  Chemical Composition is the Determinant of Aluminium Profile Performances Optimal Control of Aluminium Alloy 6063 Chemical Composition In fact, the core points have the following three aspects: 1. Selection of Mg2Si quantity. 6063 aluminium alloy heat treatment strengthening effect is increased with the increase of Mg2Si quantity increase...

Aluminium Price Forecast For The First Quarter 2018

In 2017, the investment and construction order of China's aluminium smelting industry was further standardized, and the momentum of production capacity growth was clearly contained. The overall performance of aluminium consumption has been relatively stable, but the real estate and other sectors have weakened the traditional consumption of aluminium, the aluminium exports have declined, and the electrolytic aluminium stocks remain high. The average price of aluminium products rose sharply from a year ago, and the industry was making a big profit, but the profit level fell back in the fourth quarter. In the first quarter of 2018 is facing the traditional consumption off-season, together with the trade friction cases of aluminum foil, aluminum plate will affect parts of aluminum exports, and the effects of policy factors on the supply side has appeared, so electrolytic aluminium a glut on the market will remain in the short term, but benefit from control policy continuity, capac...

How does the time affect the quality of oxide film when anodising?

We talked about two factors that affect the quality of oxide film: Electric Current Density and Temperature , now, we talk about the third factor -- Time. Under the same conditions of solution concentration and other processing technology, with the extension of anodic oxidation time, the generated oxide film will also be gradually thickening (within a certain range), the aperture gap (or pore space) will increase too which is good for dyeing. Under the same process conditions, on the contrary, if the anodic oxidation time is shortened, the generated oxide film will be thin, and the aperture gap (or pore space) becomes less and has trouble dyeing dark. Most of aluminium manufacturers’ anodic oxidation time is less than 20 minutes; except for some special situation, electrochemical polishing (Click on the link to learn more about electrochemical polishing) for example, shortens the anodic time to maintain brightness after anodizing. It’s necessary to extend the anodic time when ...

Electrophoresis of Aluminium Profiles

1. The principle of electrophoresis technology The electrophoresis is basically the same as the traditional light and transparent electrophoresis. The anode electrophoresis is carried out under the action of direct current.With the action of the electric field, the coated particles with charge are moved to the coated workpiece, which precipitates the electrophoresis coating deposited on the surface of the aluminum profile, forming a layer of film.The difference lies in the different types of coatings and the slightly different devices. The electrophoretic coating includes acrylic resin, melamine resin, pigments, solvents, neutralizing agents, additives and other ingredients. Through the application of thermal fixing in the viaduct layer in the particle, the shape of the micro-concave coating during the process of baking was basically unchanged in the baking process, and the appearance of the film was formed uniformly.The degree of extinction can be adjusted by the ratio of high ...