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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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The shopper satisfaction is our primary focus on. We uphold a consistent level of professionalism, quality, credibility and repair 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: Guatemala, Amsterdam, Barcelona, To achieve reciprocal advantages, our company is widely boosting our tactics of globalization in terms of communication with overseas customers, fast delivery, the best quality and long-term cooperation. Our company upholds the spirit of "innovation, harmony, team work and sharing, trails, pragmatic progress". Give us a chance and we will prove our capability. With your kind help, we believe that we can create a bright future with you together.
    • Although we are a small company, we are also respected. Reliable quality, sincere service and good credit, we are honored to be able to work with you!
    5 Stars By Elma from Cannes - 2018.12.22 12:52
    Perfect services, quality products and competitive prices, we have work many times, every time is delighted, wish continue to maintain!
    5 Stars By Meredith from Leicester - 2018.09.19 18:37
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