The development situation of solar energy aluminum profiles

After more than two decades of development, solar aluminum profile manufacturing enterprises have generally realized that it is increasingly difficult for solar aluminum profile to survive, develop and grow by traditional production Technology and enterprise profit point. At present, the technical added value of the Product is still relatively low. To enhance the product competitiveness of building materials, it is necessary to break through the existing technological bottlenecks and start from aspects such as new product development, improving production efficiency, and strengthening the control and improvement of process technology, so as to enhance the core competitiveness of enterprises and products. The specific measures (referring to the solutions to the problem) are as follows:

Improve the design, processing and manufacturing level of molds

At present, the vast majority of solar aluminum profile manufacturers in China use single-hole die extrusion, and the application of multi-hole dies is limited to the production of small-section profiles by small-tonnage extruders. For ordinary architectural profile products, the output of a single cross-section is usually large and the batch size is large. Therefore, the conditions for using multi-hole die extrusion are met. This requires the innovative consciousness of die designers and the processing equipment and precision to reach a new level, thereby improving the efficiency of extrusion production. In this regard, there is a big gap between us and our counterparts in Europe and America.

2. Improve the melt Mass of the aluminum bar

For some aluminum production companies, due to insufficient attention paid to the quality of melting and casting products, the quality of ingots often accounts for about 50% of the product quality problems that occur during the extrusion production process. The titanium gold plating process for solar aluminum profiles is a coating technology. It is based on the conventional titanium plating process and adds pre-plating and electroplating process steps. The pre-plating process involves placing the activated plated parts in a water solution of salt and hydrochloric acid for chemical treatment. Solar aluminum frames are aluminum materials with different cross-sectional shapes obtained by hot-melting and extruding aluminum rods. The production process of aluminium profiles mainly includes three steps: melting and casting, extrusion and coloring. Among them, the coloring mainly includes processes such as oxidation, electrophoretic coating, fluorocarbon spraying, powder spraying, and wood grain transfer printing. In terms of the effect of equalizing the fire, the influence on the extrusion speed accounts for about 70%. It has been observed that the process control in the melting and casting workshops of most solar aluminum profile manufacturers is not ideal, the refining effect of the melt is poor, and not enough attention has been paid to the problem of "how to prevent (fang zhǐ) secondary pollution of the melt after the furnace".

3. Adopt advanced extrusion technology

Solar aluminum frames are aluminum materials with different cross-sectional shapes obtained by hot-melting and extruding aluminum rods. The production process of aluminium profiles mainly includes three steps: melting and casting, extrusion and coloring. Among them, the coloring mainly includes processes such as oxidation, electrophoretic coating, fluorocarbon spraying, powder spraying, and wood grain transfer printing. Luo Baihui believes that on the basis of optimizing the mold design, improving the performance of the mold material and the surface treatment effect, using high-quality aluminum rods that have been evenly tempered and rapidly heated can achieve the purpose of "low-temperature rapid extrusion". Under the condition of ensuring that the extrusion outlet temperature reaches above 500℃, the rod temperature can be controlled within a relatively low temperature range.