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Hubei Fotma Machinery Co., Ltd.

Heat Sink, Copper Tungsten Heat Sinks, Tungsten Copper Heat Sink manufacturer / supplier in China, offering LED Related Copper Tungsten Heat Sink, Deep Treatment for Various Types of Sewage, Wastewater Treatment Technology, Deep Treatment for Various Types of Sewage, Wastewater Treatment Equipment and so on.

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LED Related Copper Tungsten Heat Sink

FOB Price: US $1 / Piece
Min. Order: 1 Piece
Min. Order FOB Price
1 Piece US $1/ Piece
Get Latest Price
Port: Wuhan, China
Production Capacity: 1 Mt / Month
Payment Terms: L/C, T/T, Western Union, Paypal, Money Gram
Basic Info
  • Model NO.: fotma
  • Material: Wcu
  • PCD: Customized
  • Hole: Customized
  • W Content: 50% - 90%
  • Thickness: 0.5mm - 1.0mm
  • Trademark: FOTMA
  • Specification: Customized
  • HS Code: 81019990
  • Product Type: Heat Sink
  • Carbon Content: None
  • ET: Customized
  • Material Grade: Wcu
  • Cu Content: 10% - 50%
  • OEM: Acceptable
  • Transport Package: Plywood Boxes
  • Origin: P. R. China
Product Description
Tungsten Copper high performance composites are fabricated from carefully controlled porous tungsten that is vacuum infiltrated with molten copper. This results in a W/Cu composite that has high conductivity and a matched low thermal expansion for heat sinks. It is a composite of tungsten and copper. By controlling the content of tungsten, we can design its coefficient of thermal expansion (CTE), matching that of the materials, such as Ceramics (Al2O3, BeO), Semiconductors (Si), Kovar, etc.

Advantages

High thermal conductivity
Excellent hermeticity
Excellent flatness, surface finish, and size control
Semi-finished or finished (Ni/Au plated) products available

Heat sinks are used to conduct heat away from computer chips and integrated circuits, preventing thermal damage. Depending on the electronic device, heat sinks come in different sizes and shapes. Tungsten-copper composites, with copper content (by weight) of 15 to 20 percent, are often used to make heat sinks. Our products are widely used in applications such as optoelectronics packages, Microwave Packages, C Packages, Laser Submounts, etc.


Specifications of WCu Alloys:
 

Material

W90Cu10

W88Cu12

W85Cu15

W80Cu20

W75Cu25

Tungsten Content (wt%)

90 ± 1

88 ± 1

85 ± 1

80 ± 1

75 ± 1

Density at 20°C (g/cm3)

17.0

16.8

16.3

15.6

14.9

Coefficient of thermal expansion at 20°C (10-6/K)

6.5

6.7

7.0

8.3

9.0
 

Materials
(article name)

Composition
[wt%]

Density at 20°C
[g/cm2]

Coefficient of
thermal expansion at20°C
[10-6/K]

Thermal conductivity
at 20 °C
[W/(m·K)]

Molybdenum

Mo 99.97%

10.2

22°C5.5/800°C5.7

xyz142

Tungsten

W 99.95%

19.3

22°C4.5/800°C4.8

xyz165

MoCu

Mo-30% Cu

9.7

22°C7.1/800°C7.8

xyz205

WCu

W-10% Cu

17.1

22°C6.4

xyz195

WCu

W-15% Cu

16.4

22°C7.3

xyz215

WCu

W-20% Cu

15.5

22°C8.3

xyz235

Cu/Mo-30Cu/Cu
(PMC)

1:4:1 /
Mo-52%Cu

9.4

200°C9.0/800°C7.3

xy280/z170

Cu/Mo/Cu 
(CMC)

1:1:1 /
Mo-66%Cu

9.3

22°C8.3/800°C6.4

xy305/z250

Cu/Mo/Cu/.../Cu
(S-CMC)

5:1:5:1:5 /
Mo-87%Cu

9.2

200°C12.8/800°C6.1

xy350/z295
 

Product Show:

LED Related Copper Tungsten Heat SinkLED Related Copper Tungsten Heat Sink
 
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