Tungsten heavy alloy
Tungsten heavy alloy is tungsten as a matrix, in which a small amount of Ni, Co, Mo and other elements are added, is a typical two-phase alloy, and is also known as "high-density alloy".
Tungsten Alloy Vibrator
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Tungsten Alloy Vibrator
Tungsten heavy Alloy
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The tungsten alloy vibrator is the core component of a motor's vibration device, functioning as an eccentric unit for the motor. It is primarily applied in fields such as smartphones, electric toothbrushes, and beauty devices .
This component utilizes a tungsten alloy material with a W-Ni-Cu formulation (tungsten content 95%), achieving a density of up to 18.6 g/cm³ . This high density allows for a smaller volume under the same weight, meeting the critical requirement for a high weight-to-volume ratio in vibration components . The material possesses properties including being non-magnetic, resistant to high temperatures, oxidation, and corrosion . Liquid-phase sintering technology is employed to enhance its densification and tensile strength (800-1500 MPa) . The manufacturing process involves Metal Injection Molding (MIM), where metal powder is mixed with a binder and injection molded, ensuring high precision and a uniform microstructure .
Its operating principle relies on an electric current triggering the vibrator to generate eccentric motion. This creates a shift in the center of gravity, resulting in continuous vibration . The component is designed to withstand the high temperatures, pressure, and friction encountered during high-speed rotation. It is well-suited for applications like electric toothbrushes and beauty devices that demand precise weight control and sensitive tactile feedback .
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