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Factory directly supply Wolfram Powder - Spherical Alumina Powder for Thermal Interface Materials – Huarui
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  • Factory directly supply Wolfram Powder - Spherical Alumina Powder for Thermal Interface Materials – Huarui
  • Factory directly supply Wolfram Powder - Spherical Alumina Powder for Thermal Interface Materials – Huarui
  • Factory directly supply Wolfram Powder - Spherical Alumina Powder for Thermal Interface Materials – Huarui
  • Factory directly supply Wolfram Powder - Spherical Alumina Powder for Thermal Interface Materials – Huarui

Factory directly supply Wolfram Powder - Spherical Alumina Powder for Thermal Interface Materials – Huarui

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Factory directly supply Wolfram Powder - Spherical Alumina Powder for Thermal Interface Materials – Huarui Detail:

Product Description

HRK series spherical alumina are produced by high temperature melting-jet method developing on ordinary irregular shape Al2O3, and then undergoes screening, purification and other processes to obtain the final product. The obtained alumina has high spheroidization rate, controllable particle size distribution and high purity. Because of its unique properties such as high thermal conductivity and good mobility, The product have been widely used as the filler of thermal interface materials, thermal engineering plastics and aluminum-based Copper-Clad Laminates and so on.

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SEM

Electron microscope diagram

Product Features

Technical item Unit HRK Series product Code
 Particle Size HRK-1 HRK-2 HRK-5 HRK-10 HRK-20 HRK-30 HRK-40 HRK-70 HRK-90 HRK-120
(D10) µm 0.71 0.69 2.54 4.55 10.5 16.88 23.77 44.32 55.23 92.39
(D50) µm 1.08 2.18 5.52 10.43 20.8 30.52 41.54 71.54 87.96 122.98
(D90) µm 3.21 5.24 9.09 20.8 37.24 48.87 66.44 106.5 134.92 172.07
Specific Surface Area m2/g 1.69 1.27 0.36 0.17 0.14 0.13 0.12 0.12 0.1 0.06
Electrical Conductivity u S/cm 6.07 5.4 5.65 4.05 6.87 7.95 4.65 6.18 8.15 6.45
PH Value - 7.53 7.79 7.7 7.9 7.62 7.7 7.8 7.7 7.9 7.54
Moisture % 0.05 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.04
True Density g/cm3 3.71 3.7 3.74 3.76 3.79 3.79 3.81 3.87 3.88 3.89
Spheroidization Rate % 96 98 98 98 96 98 96 96 95 95
Chemical Composition Al2O3 % 99.87 99.94 99.89 99.94 99.92 99.93 99.94 99.92 99.94 99.92
SiO2 ppm 430 30 430 20 150 20 20 30 20 170
Fe2O3 ppm 140 70 140 40 60 60 50 60 60 140
Na2O ppm 90 100 10 60 140 90 110 90 70 90

Application

● Thermal Interface Materials: thermal silica pad, thermal grease, thermally conductive potting glue, phase change materials;
● Thermally Conductive Engineering Plastics: LED lamp cover, switch shell,electronic products shell, electrical products heat dissipation parts;
● Al-based Copper Clad Laminate: high-power LED circuit substrate, power circuit boards, etc;
● Alumina Ceramic Filters;
Thermal Spray Coating.

Application

Product detail pictures:

Factory directly supply Wolfram Powder - Spherical Alumina Powder for Thermal Interface Materials – Huarui detail pictures

Factory directly supply Wolfram Powder - Spherical Alumina Powder for Thermal Interface Materials – Huarui detail pictures

Factory directly supply Wolfram Powder - Spherical Alumina Powder for Thermal Interface Materials – Huarui detail pictures

Factory directly supply Wolfram Powder - Spherical Alumina Powder for Thermal Interface Materials – Huarui detail pictures

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Dependable high-quality and fantastic credit standing are our principles, which will help us at a top-ranking position. Adhering to your tenet of "quality very first, client supreme" for Factory directly supply Wolfram Powder - Spherical Alumina Powder for Thermal Interface Materials – Huarui , The product will supply to all over the world, such as: Roman, Russia, Colombia, Our R&D department always designs with new fashion ideas so we could introduce up-to-date fashion styles every month. Our strict production management systems always ensure stable and high quality products. Our trade team provides timely and efficient services. If there are any interest and inquiry about our products, please contact us in time. We would like to establish a business relationship with your honored company.
    • The supplier abide the theory of "quality the basic, trust the first and management the advanced" so that they can ensure a reliable product quality and stable customers.
    5 Stars By Kay from Las Vegas - 2017.12.31 14:53
    The manufacturer gave us a big discount under the premise of ensuring the quality of products, thank you very much, we will select this company again.
    5 Stars By Josephine from Philadelphia - 2018.11.28 16:25
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