Powder Spheroidization - Aeromac Thermal

POWDER SPHEROIDIZATION

Powder spheroidization is the transformation of either agglomerated powders produced by spray drying and sintering techniques, or angular powders produced by conventional crushing methods, into spherical powder. Induction plasma technology is used to achieve this through in-flight heating and melting of feed material particles followed by cooling and solidification under controlled conditions. The spherucal powders can cater to a range of applications such as hard surfacing, cold spray, thermal spray, metal injection molding and additive manufacturing.

The key advantages of powder spheroidization are as follows:

Improves flowability
Reduces internal porosity
Higher packing density
Less friable powder
Increases purity

Example of the improvement in the quality of tungsten carbide powder:

PROPERTIES	BEFORE POWDER SPHEROIDIZATION	AFTER POWDER SPHEROIDIZATION
Photograph
Particles	WC (-100+400 Mesh/40-150um)	WC (-100+400 Mesh/40-150um)
Tap Density	8.1 g/cm3	10.2g/cm3
Hal Flow Test	19sec/50g	7sec/50g

Aeromac Thermal provides a range of Tekna powder spheroidization equipment using their unique spheroidization process. We also offer a range of spherical powders manufactured by Tekna's powder spheroidization technology.

Tekna is a world leader in induction plasma technology, ensuring the highest level of quality and innovative equipment and powders.
Tekna

POWDER SPHEROIDIZATION SYSTEMS

EQUIPMENT	BRIEF	SPHEROIDIZABLE MATERIALS
TekSphero-15	PQ-35 Tekna’s Induction plasma torch Manual operation Very flexible for batch process Reactor enclosed within laminar flow hood Foot print LxWxh (m): 2.5 x 0.9 x 2.0 Min. floor space LxWxh (m): 3.7 x 2.0 x 2.4	The technology can spheroidize the following (not limited to) Ceramics Oxide Ceramics Non-oxide Pure Metals Alloys Etc Capacity of plasma treatment Purity Enhancement Factor: Up to 10x Densification Factor: Up to 3x Spheroidization: Up to 100% Melting Point: No limit Raw Material Types: Crushed, Sponge, Fibres, Atomized Solution
TekSphero-40	PN-35 Tekna’s Induction plasma torch Advanced touch screen interface Data logging Manual control Foot print LxWxh (m): 4.6 x 3.8 x 2.9 Min. floor space LxWxh (m): 8.2 x 7.5 x 3.6
TekSphero-80	PN-50 Tekna’s Induction plasma torch Advanced touch screen interface Data logging Automated control Foot print LxWxh (m): 5.4 x 3.2 x 2.9 Min. floor space LxWxh (m): 9.0 x 7.5 x 3.6
TekSphero-200	PN-70 Tekna’s Induction plasma torch Advanced touch screen interface Data logging Automated control Gas recycling Foot print LxWxh (m): 8.7 x 6.5 x 6.8 Min. floor space LxWxh (m): 12.3 x 10.2 x 8.2
Custom Systems	We can work with you to help address specific requirements for customized equipment and turn key processes.

SPHERICAL POWDERS

SPHERICAL POWDER	BRIEF
Cast Tungsten Carbide (SCWC)	These powders are manufactured by Tekna's state-of-the-art powder spheroidization equipment. They are well-known for their superior quality and uniformity, and offer higher density, higher purity and better flow than standard powders. They are an excellent choice of precursor for applications requiring high quality materials.
Tungsten
Titatium Carbide (TiC)
Tantalum
Molybdenum
Silicon Dioxide
Silicon
Commercially Pure Titanium (CPTi)
Titanium Aluminium Vanadium
Custom Spherical Powders	We can work with you to help address specific requirements for customized materials and specifications (e.g. Alumina, Boron Carbide, Copper, Niobium Carbide, Vanadium Carbide etc)