High-efficiency refining agent (white tablet) is a specialized refining agent for the purification of aluminum and aluminum alloy melts. It appears as white blocks, with a standard weight of 500 grams per block. It is primarily designed for the degassing and refining processes of pure aluminum and various commonly used aluminum alloys on the market. At melting temperatures of 710–730℃ and above, it can rapidly and stably exert its purification effect. The recommended addition amount is 0.2%–0.7% of the total melt weight, while allowing users to flexibly adjust the addition ratio according to actual working conditions. This product aims to remove gases and non-metallic inclusions from molten aluminum through a simple and efficient physicochemical process, thereby helping aluminum processing companies obtain high-purity molten aluminum with lower auxiliary material inputs." Suitable for casting and machining applications requiring high production efficiency and finished product quality.
Product Characteristics
White Block Form: The product is pressed into uniform white blocks, each with a net weight of 500 grams. The surface is dry, and the hardness is moderate, making it less prone to breakage during transportation and storage, facilitating on-site counting and quantitative addition in the workshop.
Flexible Addition Range: The recommended addition amount is 0.2% to 0.7% of the total mass of molten aluminum, with explicit support for adjustment "as needed." Users can freely select the optimal addition amount within this range based on the initial gas content, inclusion level, and final product quality requirements in the melt.
Definitive Operating Temperature: The optimal refining temperature range is 710–730℃ and above. When the melt temperature reaches this range, the white, blocky refining agent melts and diffuses rapidly, reacting fully with hydrogen and oxides in the molten aluminum to ensure stable and reliable degassing and slag removal.
**Universal Compatibility:** The product formula is specifically designed for pure aluminum and various commonly used aluminum alloys. It can be used directly without distinguishing alloy types, offering broad coverage and reducing the pressure of stocking various refining agents on-site.
**Standardized Packaging:** Each block is individually packaged in 500g portions and shipped in blocks. Users can directly calculate the required number of blocks based on the weight of the molten aluminum in each furnace, eliminating the need for additional weighing steps and simplifying the operation process.
Key Advantages:
**Significantly Improves Aluminum Purity and Reduces Scrap Rate:** Through a highly efficient reaction system, this product effectively removes hydrogen and oxides from molten aluminum. Dissolved atomic hydrogen and suspended oxide films, inclusions, and other harmful substances are removed. After refining, the incidence of defects such as pinholes, porosity, and looseness in castings is significantly reduced, especially for products with high airtightness requirements, resulting in a reliable improvement in the finished product qualification rate.
One-size-fits-all, simplified management: Applicable to most commonly used grades of pure aluminum, cast aluminum alloys, and wrought aluminum alloys. Users do not need to change refining agents for different alloy types; a single feeding sheet and one formulation can handle multiple production tasks, significantly reducing the complexity of material management and the risk of misuse.
Low dosage, controllable cost: The minimum dosage is only 0.2%, and even in melts with high impurity content, it usually does not need to exceed 0.7%. This wide-range but... The low-threshold addition design allows users to precisely control the cost of refining auxiliary materials per ton of molten aluminum while ensuring refining effects, achieving a balance between high quality and low consumption.
Wide operating temperature window, adaptable to conventional processes: Highly efficient refining capabilities are activated at 710℃ and remain stable up to common melting temperatures (e.g., 740-750℃). This feature reduces the risk of refining failure due to small fluctuations in furnace temperature, making it easier for operators to achieve consistent processing results.
Convenient operation and precise dosing: The fixed 500-gram size of each piece makes dosing calculations extremely simple. For example, for 1 ton of molten aluminum, only 2 to 7 pieces are needed to cover the recommended range; for non-standard furnace runs, also... It allows for quick mental arithmetic or simple calculations. On-site workers do not need to use electronic scales; they can directly add blocks to the furnace, reducing human weighing errors and improving batch-to-batch consistency.
Product Applications: High-efficiency refining agent (white tablet) is specifically designed for the degassing and refining process of pure aluminum and various commonly used aluminum alloys. It is a crucial purification step before aluminum molten metal is poured. Specific applications include:
Aluminum Casting Production: In gravity casting, low-pressure casting, high-pressure casting, and metal mold casting processes, adding this product to the furnace or transfer ladle before pouring can rapidly reduce the hydrogen content of the molten aluminum, significantly reducing pinholes, porosity, and shrinkage defects inside the castings, improving the density, mechanical properties, and airtightness of the castings. Suitable for automotive parts, pump bodies, valve bodies, etc. Manufacturing of castings such as metal tools.
Production of aluminum profiles, sheets, strips, and foils: In the furnace refining stage of semi-continuous deep-well casting (DC casting) or horizontal casting, the use of a high-efficiency refining agent (white lumps) can effectively reduce the hydrogen content and oxide inclusion levels of ingots, thereby avoiding surface and internal defects such as bubbles, peeling, black streaks, and delamination during subsequent extrusion, rolling, wire drawing, or stamping, improving yield and surface quality.
Upgrading and utilizing recycled aluminum: Addressing the issue of high gas and inclusion content in recycled aluminum melt, by adjusting the addition amount to close to 0.7% and coordinating with thorough stirring, deep degassing and slag removal can be achieved, bringing the cleanliness of recycled aluminum close to that of virgin aluminum, thus broadening its application in higher-quality products. Applications that enhance the economic value of recycled aluminum.
High-end aluminum alloy components: For products with stringent internal quality standards, such as aerospace structural components, rail transportation components, heat sink profiles, and electronic casings, this product can meet the high requirements of flaw detection (such as X-ray and ultrasonic) and airtightness testing without introducing any impurity elements, ensuring product stability.
Flexible, multi-variety, small-batch production: Because it supports adjusting the dosage "according to actual needs" and has a fixed weight of 500 grams per piece, this product is particularly suitable for production workshops that frequently change alloy grades and have large variations in furnace capacity. Operators only need to quickly calculate the number of pieces to complete the feeding, without complex process conversions, facilitating flexible manufacturing.
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