09
2025
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07
The complete process of aluminum alloy casting and smelting
Author:
I. Pre-melting Preparations
1. Equipment Inspection: Ensure that the electric furnace, thermometer, cooling system, and other equipment are in normal working order.
2. Raw Material Ratio: Determine the mixing ratio of primary aluminum, recycled aluminum, and alloying elements according to product requirements.
3. Furnace Pre-treatment: Clean the furnace and preheat to 300-400℃ to remove moisture.
II. Melting Stage Control
1. Temperature Management: Use a gradient heating method to stably control the furnace temperature in the range of 720-880℃.
2. Melt Treatment: Perform slag removal every 30 minutes to maintain a clean melt surface.
3. Component Adjustment: Real-time monitoring of the aluminum melt composition through spectral analysis, and timely supplement of alloying elements.
III. Casting Process Implementation
1. Mold Preparation: Steel molds should be preheated to 200-250℃ and sprayed with a release agent.
2. Pouring Operation: Use a low-position pouring method, controlling the aluminum melt flow rate at 0.8-1.2m/s.
3. Degassing Treatment: Use a vibration degassing device to eliminate bubbles in the melt.
IV. Post-processing and Quality Control
1. Cooling Specification: Castings are cooled in a special cooling box at a rate of ≤15℃/min.
2. Aging Treatment: Select the appropriate aging temperature and duration according to the alloy grade.
3. Defect Detection: Conduct internal quality inspection of castings through X-ray and ultrasonic testing.
Complete process control and strict process execution are the core elements to ensure the quality of aluminum alloy castings.
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2026-02-16
Fuma Welcomes the New Year
In 2026, we will remain true to our original aspirations and stay committed to practical action, working hand in hand with you to embark on a new journey and create a bright future together!
2025-12-05
Chongqing Da'ao Metallurgical Technology Co., Ltd. has reached a cooperation agreement with MacArthurum International Ltd. of the United Kingdom.
On November 24, 2025, a high-level delegation from Mechatherm arrived at Chongqing Da’ao Metallurgical Technology Co., Ltd. (hereinafter referred to as Da’ao) for an inspection and exchange visit. As a specialized technical enterprise in the field of aluminum and aluminum alloys, Da’ao provided its guests with a detailed demonstration of its R&D achievements and technical service capabilities in areas such as casting and forging tooling and related auxiliary materials. The two sides engaged in an in-depth exchange and reached important consensus on potential technological cooperation.
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