Product Advantages
High-Speed, High-Pressure Precision Injection
Utilizing die-casting equipment with pressures of hundreds of MPa and injection speeds of 1-5 m/s, the molten magnesium alloy rapidly fills the mold, improving part dimensional accuracy and structural uniformity while minimizing machining errors.
Heat Treatment Enhances Mechanical Properties
Through solution treatment and aging processes, the internal crystal structure of the magnesium alloy is refined, increasing hardness and tensile strength, enabling the product to withstand the stress and impact of long-term use in electronic devices.
Multi-Layer Surface Protection
A combination of electroplating, chemical conversion coating, and powder coating enhances surface corrosion resistance, extends component life, and ensures stable performance in challenging environments.
Post - processing
Trimming: After the die-casting portion of the material solidifies and ejects from the die, the excess material including the flash and the runners are removed by the operation of trimming. Trimming is generally conducted with the help of a trimming press or by a CNC machine centre.
Heat treatment: The components of the magnesium alloy that are manufactured using the die-casting method are heat treatable according to the requirements of the electronic device. Solution treatment with ageing, for example, increases the hardness and the tensile strength of the components.
Surface Treatment: Surface treatment operations are implemented for enhancing the cosmetic look of the parts and for enhancing the parts' anticorrosion properties. The most noted surface treatment operations are electroplating, chemical conversion coating, and powder coating.
Quality Control
Dimensional Inspection: The dimensions of the parts are accurately measured using precision equipment such as the coordinate measuring machine (CMM) for verification that they are within the required design specifications.
Non - destruction testing: The parts are examined by non-destruction testing techniques like the X - ray inspection and the testing by ultrasound for the existence of such internal flaws as porosity, crack, and inclusions in the parts.
Mechanical Property Tests: The tensile test, the hardness test, and the impact test are conducted for the mechanical properties of the magnesium alloy die-casting products for the aim of confirming that they are at electronic products' performance levels.
FAQ
Q: How is the dimensional accuracy of magnesium alloy die-castings ensured?
A: High-precision mold design and high-speed, high-pressure injection molding, combined with coordinate measuring machine inspection, ensure dimensional stability and compliance with design requirements.
Q: Does the product's corrosion resistance meet the operating environment of electronic equipment?
A: Multi-layer surface treatment technologies, such as chemical conversion coatings and powder coating, are used to adapt to various complex environments.
Q: How does heat treatment specifically improve the performance of magnesium alloy parts?
A: Solution and aging heat treatments increase hardness and tensile strength, enhancing mechanical properties to meet the requirements of electronic products.
Q: How are oxidation and combustion risks avoided during magnesium alloy production?
A: Melting in a mixed protective atmosphere of nitrogen and sulfur hexafluoride prevents oxidation and combustion of the magnesium alloy, ensuring stable material quality.
Q: What technologies are used for internal defect detection?
A: X-ray and ultrasonic nondestructive testing technologies accurately detect internal defects such as pores and cracks, ensuring product reliability.
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