6063 extrusion

Aluminum alloy profile scrap is classified primarily based on its alloy grade, packaging, application field, and processing method. Here are some common classification methods:
1. By Composition: For example, 6063 profile scrap, 6061 profile scrap, and other grades of aluminum alloy profile scrap.
The most common profile material for doors and windows is 6063 aluminum, followed by 6061 aluminum. Generally, high-end door and window materials use a higher proportion of 6061.
2. By Packaging: Such as loose scrap, baled scrap, and palletized scrap.
Loose can involve cutting and boxing, bagging, or completely loose. The difference between palletizing and baling is that palletizing is generally loose, while baling is very compact.

3. By Application Field: Such as construction aluminum alloy profile scrap, automotive aluminum alloy profile scrap, aerospace aluminum alloy profile scrap, etc.
4. By Processing Method: Such as crushed aluminum alloy profile scrap, sorted aluminum alloy profile scrap, polished aluminum alloy profile scrap, etc.
5. By Surface Condition of Alloy: Such as unpainted (white or bare) aluminum alloy profile scrap, painted aluminum alloy profile scrap, mixed aluminum alloy profile scrap, etc.
   Each classification method has its characteristics and application scenarios, and you can choose the appropriate classification method based on actual needs.

The main sources of aluminum alloy profile scrap include several aspects:
1. Manufacturing Process: Scrap such as trimmings, sawdust, and shavings from the production or use of aluminum profiles are generated. They are significant sources of aluminum profile scrap.
2. Construction Waste: Used aluminum profiles that remain or are damaged during construction or renovation also become scrap.
3. Obsolete Products: Aluminum profile products that have reached the end of their life or are damaged and cannot be repaired, such as old doors, windows, furniture, car parts, and electronic devices, are also important sources of aluminum profile scrap.
These scraps contain substantial amounts of recyclable aluminum. Proper recycling and reuse can significantly conserve resources, reduce production costs, and contribute to environmental protection.
Aluminum alloy profile scrap production is concentrated in regions with developed industries and high aluminum usage. Globally, China is the largest producer and consumer of aluminum and aluminum alloys, thus generating a large amount of industrial scrap from aluminum alloy profiles. Particularly in the Pearl River Delta, Yangtze River Delta, and Bohai Bay areas, due to their industrial development in construction, automotive manufacturing, electronics, and other sectors, they produce a substantial amount of aluminum alloy profile scrap. In the United States, Europe, Japan, and South Korea, the high-end manufacturing industries such as automotive, aerospace, and electronics have a significant demand for aluminum, resulting in large amounts of aluminum alloy profile scrap. Aluminum alloy profile scrap is also abundant in household waste, typically requiring sorting for recycling and reuse to achieve effective resource utilization.

To enhance or assess the value of a batch of aluminum profile scrap, consider the following steps:
1. Sorting and Cleaning: Sort the collected aluminum scraps by series or grade, which aids in subsequent recycling. Additionally, remove as much as possible any attachments other than aluminum, such as iron screws, gaskets, and seals. This can increase the value of aluminum profile scraps.
2. Thickness Evaluation: The thickness of the profile directly determines its metal recovery rate, which is a critical factor in its value. Pure scrap without any impurities and with a thickness of 1-3mm has an ordinary metal recovery rate of 93%-95%, while scrap with a thickness of 4-6mm and above has a metal recovery rate of 95%-98%.
3. Proper Storage: Store aluminum profile scrap in a dry and safe place to prevent it from being washed by rain, which can lead to material oxidation. Also, avoid long-term accumulation that causes dust pollution, which might lower its value.
The presence of attachments and impurities in aluminum profile scrap can be detected through several methods:
1. Visual Inspection: This is the most direct method. You can manually check if there are any visible attachments in the scrap, such as screws, rivets, brackets, or other metallic or non-metallic foreign objects. Experienced staff can not only discover these foreign objects but also estimate their overall impurity content.

2. Magnetic Testing: Attachments made of ferrous metals (such as iron or steel) can be detected using a magnet. Aluminum is non-magnetic, so any part that is attracted by the magnet may be a ferrous impurity.

3. X-ray Fluorescence (XRF) Analysis: XRF analyzers can identify the composition of materials down to the elemental level, which is very useful for detecting attachments or impurities in scrap. However, it is less efficient for large quantities of aluminum profiles.
4. Fracture Testing: In some cases, it may be necessary to cut or break aluminum profile scrap to fully inspect the content of its attachments.

Handling aluminum profile scrap involves several steps:
1. Collection: First, collect aluminum profile scrap. This scrap may come from aluminum profile manufacturing processes, construction sites, end-of-life products, or various other sources. The larger the amount collected, the higher its value.
2. Sorting: Then sort the scrap by different aluminum series and grades. This is typically done manually by experienced workers, but it can also be automated with machinery.
3. Cleaning and Disassembly: Clean the sorted aluminum profile scrap to remove contaminants such as dirt, paint, and remove other non-aluminum materials like iron screws, rubber, and plastic strips. This can be accomplished through various methods such as chemical cleaning, grit blasting, or thermal treatment.
4. Crushing and Decontamination: Intact profiles are difficult to completely remove non-aluminum attachments, so aluminum profile scrap is crushed or crushed into smaller fragments, making it easier to remove strips, screws, etc. The decontamination process can be done by hand or through magnetic separation, flotation, and other automated sorting, which is easier to handle. This processing step is often used for handling large volumes of aluminum profile scrap, compared to manual disassembly, which can significantly improve efficiency.
5. Melting: Melt the aluminum profile scrap in a furnace, adjust the elemental content, and finally process it into aluminum ingots or molten aluminum. Aluminum scrap produced aluminum ingots (rods) are broadly divided into two major categories: standard ingots (rods) and non-standard ingots (rods). Standard aluminum ingots (rods) meet the criteria of a certain grade; whereas, non-standard aluminum ingots (rods) have varying elemental content that needs to be carefully checked, especially for the content of minor elements after the third element.

The inspection methods for aluminum alloy profile scrap include:
Handheld Spectrometers: Accurate in determining the elemental content of aluminum alloys, used frequently. When used, scrape off the paint and plating of aluminum to avoid surface coating interference, and maintain the format unchanged.

The matching direction for aluminum profile scrap is very broad. For instance, aluminum profile scrap can be supplied to various aluminum rod manufacturing plants or aluminum alloy door and window factories, directly utilized in the production of 6061/6063 series aluminum rods, which is a high-value recycling utilization.
If it's downgraded matching, aluminum scrap can often be processed into aluminum ingots with grades of 95/96/97/98, which can then be adjusted for elemental content for upgraded use or used to produce low-end aluminum alloy products.
In the international market, the price of aluminum alloys in China is relatively high due to the significant demand for recycled aluminum alloys. However, it is worth noting that there are punitive tariffs on aluminum profile scrap originating from the United States when exporting to China, so aluminum scrap from the United States can seek prices in markets outside of China.

1. Aluminum profile scrap is generally marked with a 98/2 or 95/5 notation to indicate the presence of impurities, such as 98/2 meaning that the scrap contains 98% aluminum and 2% impurities. Before trading, specify as much as possible in the contract with the supplier regarding the agreed terms.
2. Have as many pictures as possible, especially detailed pictures to judge the degree of impurities in a batch of aluminum scrap, especially cross-sectional photographs.

3. For aluminum alloy profile scrap imported into China, the degree of painting must be clearly and accurately communicated. Aluminum with a high amount of paint and coating is not allowed to be imported into China. If the goods do not meet standards during customs inspection, they may face high penalties for return or even fines. Try to import unpainted (bare) material.