Metal spherical powder, also known as metal powder for sphericalization, is a type of powder metallurgy material. It is produced by processing metal powders into spherical particles using powder metallurgy techniques.
The preparation of metal spherical powder typically involves the following steps:
Raw material selection: Suitable metal powders for sphericalization are chosen as raw materials. Commonly used metals include iron, copper, aluminum, titanium, and others.
Pre-treatment: The raw metal powders undergo pre-treatment processes such as dust removal, deoxidation, and impurity removal to improve powder purity and uniformity.
Spheroidization process: Spheroidization is a crucial step, and common methods include sintering spheroidization, spray spheroidization, and mechanical spheroidization. Among them, sintering spheroidization is the most commonly used method. It involves melting the surface of metal powder particles at high temperatures, forming liquid droplets, and then solidifying them into spherical particles during the cooling process.
Surface treatment: The obtained metal spherical powder usually undergoes surface treatment to improve its flowability, dispersibility, and storage stability. Common surface treatment methods include coating, alloying, and surface modification.
Metal spherical powder offers several advantages, including:
Titanium Spherical Powder
Titanium Spherical Powder
High flowability: The spherical shape of the powder enables good flowability during processing, facilitating the production of complex-shaped parts.
Uniformity: Spherical powder exhibits uniform particle shape and narrow particle size distribution, enhancing material uniformity and performance.
Enhanced material properties: The preparation process of spherical powder allows for the homogeneous distribution of alloying elements, improving material strength, hardness, wear resistance, and other properties.
Ease of processing: The shape and properties of spherical powder make it easy to compress and shape, suitable for powder metallurgy, injection molding, 3D printing, and other processing methods.
Metal spherical powder finds wide applications in various fields, including automotive manufacturing, aerospace, electronics, medical devices, and more. It is used for the production of high-strength parts, conductive materials, magnetic materials, and wear-resistant materials, among others, enabling material lightweight and performance optimization.
