Tungsten 3D Printing for Heat Exchangers

Precisely What is Spherical Tungsten Powder?

Spherical tungsten powder is a type of tungsten which has been specifically made to print 3D. This powder is meticulously created to make up the shape of a spherical for this reason each powder particle being extremely homogeneous and small in proportions, allowing for excellent printing results.

Exactly what is Tungsten Powder?

Tungsten powder is a form of powdered metallic tungsten, utilized like a raw material for that preparation of tungsten-processed substances including alloys, tungsten products and. This is a gray-black metal using a metallic Lustre (body-centred cubic crystal). Melting point 3400. Boiling points 5555. The tungsten’s hardness is considered the most hard of the metals. The toughest tungsten rod is 200250 which is the hardest tungsten rod which has been spun once the spinning hammer spins is 350400. It is soluble inside the mix acid of nitric acid in addition to hydrofluoric acid. It melts in the combination of sodium hydroxide and carbonate. A little bit soluble in nitric acid and sulfuric acid along with aqua regia, insoluble in hydrofluoric acid and water. potassium hydroxide. Tungsten has two varieties A and B. At normal temperature and atmospheric pressure, type A is really a solid cylindrical structure that may be body-centered. Type B tungsten is able to be located in the presence of oxygen. It really is stable to 630degC, after which transforms to a tungsten at temperatures above 630degC. This technique is unreversible.

Difference between tungsten powder and spherical tungsten powder

Tungsten powder and tungsten spherical powder both are powder sorts of tungsten, but they have obvious differences in morphology, particle size and application.


Tungsten powder is generally in granular form, while spherical tungsten powder is really a spherical powder after special processing. This spherical shape allows tungsten powder to flow and fill better in applications like 3D printing, providing more uniform printing results.

Particle Size

While tungsten powders have relatively large particle sizes, spherical tungsten powders have very fine particle sizes, usually from the nanometer range. This fine particle size allows Sphericaltungsten powder to put better in the nozzle in the 3D printer, providing finer print details. Concurrently, the fine particles will also be in a position to fill paper bed, increasing the density and strength of the printed part.


Tungsten powder has a wide range of applications in numerous fields, for example light bulb manufacturing, electronics, and mechanical parts. Within these applications, tungsten powder is normally used as a filler or alloying element. Spherical tungsten powder, around the other hand, is particularly suited to areas like 3D printing, where it is capable of doing creating more complex, high-precision parts and devices because of its excellent flowability, filling effect and printability.

How will you prepare tungsten powder?

It can be made by the hydrocarbon reduction on tungsten trioxide, or ammonium paratungstate. The procedure of making the tungsten powder through hydrogen reduction could be split up into two phases one stage inside the first stage, at temperatures of 500-700degC, tungsten oxide is reduced to tungsten oxide; from the second phase, at 700-900°C after which tungsten dioxide will be reduced towards the tungsten powder. The reduction reaction is usually performed by the sort of a tube or rotary furnace.

The efficiency of tungsten reduced powder (such as quality as well as particle size, composition, size, etc.) mostly depends inside the approach to reduction. At the same time of reducing tungsten within an oven tube, the key factors that affect the speed of reduction are temperatures of reduction, quantity of tungsten oxide to the burner vessel and the speed of movement that this vessel is at, as well as the rate of flow of hydrogen, and the amount of moisture in hydrogen. As the temperatures of reduction, size of tungsten powder gets more coarse.

Manufacture of tungsten powder together with the means of hydrogen reduction, additionally there is a tungsten oxide carbon reduction methods employed at the beginning The reduction temperature is higher than 1050 degrees Celsius . The purity of the tungsten oxide powder that is produced by using this technique is poor. Furthermore, if you use calcium, aluminum zinc, as well as other reduction processes of tungsten oxide research is currently underway. For specific applications which need ultra-fine, ultrapure particle size of tungsten powder the growth of the tungsten chloride hydrogen reduction process The tungsten powder particle dimension is lower than .05mm.

Industrial production may be accomplished throughout the decrease in tungsten trioxide by hydrogen, or ammonium partungstate is treated with acid and then tungsten trioxide can be done by maturation decomposition after which reduced using hydrogen.

Hydrogen reduction using tungsten trioxide hydrogen reduction can be achieved in 2 steps The initial stage occurs when tungsten trioxide heating to 550-800 , using hydrogen reduction. The following stage of reduction happens between 650 and 850 the tungsten powder is finished.

Also, it really is possible to reduce ammonium paratungstate into blue tungsten oxide (blue tungsten) initially by hydrogen, or, otherwise by hydrogen then reduce it back to tungsten by hydrogen. The size and content of the tungsten powder are an important quality indicator of the tungsten powder. The reduction process is performed by way of a tube or maybe the rotary furnace.

Spherical tungsten powder offers the following advantages:

Spherical shape: The spherical shape allows the tungsten powder to higher fill paper bed through the printing process, providing a much more uniform print result. In comparison with traditional granular tungsten powder, spherical tungsten powder can better adapt to the 3D printing head and give a smoother printing process.

Fine particle size: The fine particle size allows the tungsten powder to improve match the nozzle in the 3D printer, providing finer print details. The fine particles also fill paper bed better, improving the density and strength from the printed part.

Uniform particle distribution: Uniform particle distribution reduces clogging and defects throughout the printing process and improves print success. In traditional granular tungsten powders, the particle distribution is generally not uniform enough, which can lead to clogging or defects during the printing process. The uniform particle distribution of spherical tungsten powder can effectively solve this problem.

High purity: High-purity tungsten powder offers better print performance and better print quality. In certain applications, it really is necessary to use high-purity material for printing so that the quality and gratification of parts.

Spherical Tungsten Powder Application Areas

Spherical tungsten powder has a wide range of applications, including but not confined to the next areas:

Aerospace: Spherical tungsten powder can be used to manufacture high-performance parts like aircraft structural components and engine parts. During these applications, our prime strength, high density and purity characteristics of tungsten powder can provide better printing performance and quality.

Automotive industry: Spherical tungsten is utilized for the creation of parts for automobiles, including chassis parts, engine components along with other parts. The strong durability and resistance to temperature of tungsten powder will enhance printing quality and gratifaction.

Medical field: Spherical tungsten can be used to create medical devices like dental implants, surgical instruments yet others. The high biocompatibility along with the high strength of tungsten powder could enhance print quality and printing performance.

Architecture: Spherical tungsten powder enables you to manufacture architectural models and components. Our prime strength and wear-resistant properties of tungsten powder can provide better printing performance and quality.

Electronics: Spherical tungsten powder enables you to manufacture electronics, like semiconductor devices, circuit boards and the like. Our prime thermal and electrical conductivity of tungsten powder provides better printing performance and quality.

It should be noted that using spherical tungsten powder for 3D printing needs a certain level of skill and experience. Should you be a beginner, it is recommended to rehearse with a few more accessible 3D printing materials first. As well, using tungsten powder for 3D printing also requires special focus on safety, as tungsten is a high-density metal that can easily cause problems for a persons body. When doing so, make sure to keep to the relevant safety regulations and operating procedures.

Spherical Tungsten Powder Supplier

TRUNNANO is a reliable concrete additives supplier with over 12-year experience in nano-building energy conservation and nanotechnology development.
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