Tungsten alloy shielding is made by tungsten nickel copper alloy or tungsten nickel iron alloy instead of lead or steel, and used to shield the radiations.

1.Spherical Tungsten Powder

Spherical tungsten powder has the spherical crystal shape under the scanning of SEM.

2.Spherical Tungsten Powder Property

Physical property: apparent density is 11.6g/cm3, tap density is 12.5g/cm3, spherical rate is 98%, grain size is divided into fine grain size, medium grain size and coarse grain size.

Chemical property:

The tungsten content is over 99.9%, oxygen content is less than 0.042%.

3.Spherical Tungsten Powder SEM

Spherical tungsten powder has the morphology like ball shape.

4.Spherical Tungsten Powder Application

0~15um grade is used for metal injection molding, 15~53um is used for selective laser melting technology, 53~100um is used for electron beam melting additive manufacturing.

1.Blue Tungsten Oxide

Blue Tungsten Oxide (BTO) is a kind of blue crystal powder, the appearance is dark blue color, is usually used to produce tungsten powder.

2. Blue Tungsten Oxide Property

Basic information: molecular formula is WO2.9, molecular weight is 230.24, insoluble in water, soluble in alkali, slightly soluble in acid.

Chemical property:

The main content is WO2.9, over 99.95%, grain size is 12~20um.

3. Blue Tungsten Oxide Producing Method

Blue tungsten oxide can be calcinated under 500~600℃ with APT as raw material.

4. Blue Tungsten Oxide Application

1.Producing tungsten powder.

2.Catalyst.

3.Painting for ceramic.

4.Raw material for heat insulating dispersion.

5.Anode material of lithium ion battery.

The welding method of copper bonded tungsten copper electrode is silver brazing, which is the most popular in our workshop.