mt gox买比特币|比特币为什么涨那么凶

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Your present location:indexIndustry CategoryWelding Electrode > Seam sealing welding roller electrode
Detail
  • Product Name  Seam sealing welding roller electrode
  • Product ID  WE003
  • Added time  2017-09-14
  • Views   157

 

Tungsten copper

 

 

 

 

content

Density

Hardness

Conductivity

Class

 

(g/cm³)

(HRB)

(%IACS)

 

W50Cu50

11.9

65

54

 

W55Cu45

12.5

70

49

10

W70Cu30

14.1

82

42

 

W75Cu25

14.5

90

38

11

W80Cu20

15.2

98

34

12

W85Cu15

15.9

240HB

30

 

W90Cu10

16.75

260HB

27

 

 

Seam sealing is the process that permanently bonds the package and lid of a device, providing a barrier for the internal components for the device’s operational lifetime. This is typically the last critical step in the package manufacturing process, so it is among the most important.

Seam sealing means bonding a lid to a package base to create a barrier to contamination ingress. Resistance welding provides a solution for many seam sealing applications. So choice the right electrode is very important for the final product’s yield.

We made few kinds of material of electrode to welding the Kovar, invar, stainless steel, golden plating lip material.

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