White tungstic acid and yellow tungstic acid difference mainly embodies in their appearance, white tungstic is white powder with white microcrystalline structure, yellow tungstic acid is the most common seen tungstic acid, color is light yellow and is in powder form.

Tungsten copper thermochemical method is also known as powder coating method, which doped with compound or compound solution and dried calcined to obtain the coated powder after reduction.

Discoveries in tungsten use can be loosely linked to four fields: chemicals, steel and super alloys, filaments, and carbides.

Tungsten copper explosive powder compaction method is the use of explosive shock wave generated by the metal or non-metal sintering compacted powder processing technology. When the shock wave through the metal powder, which the powder received extrusion, collision, friction between the particles, the thermoplastic must cut and micro-jet.

Tungsten copper metal injection molding (MIM) is a new type of powder forming technology, which also called powder injection molding (PIM), it is a method combines by powder metallurgy and injection molding.

Hydrothermal method produces tungsten trioxide using sodium dehydrate as raw material, by ultrasonic treatment and move to reaction still to produce tungsten trioxide.

Common seen tungstic acid producing method is tungsten concentrate soda sintering method, tungsten concentrate soda solution pressure digestion and sodium hydroxide solution decomposition method.

There are some influencing factors of thorium tungsten wire drawing.

1. The Blank State, including wire strength, cross-sectional size, cross-sectional shape, surface condition and consistency.

Tungsten electrode is pided into different types in accordance with the materials of tungsten, including pure tungsten electrode, lanthanated tungsten electrode, cerium tungsten electrode, thoriated tungsten electrode, yttrium tungsten electrode, zirconiated tungsten electrode, silver tungsten electrode and composite tungsten electrode. 

Tungsten heavy alloy has properties of high density, high tensile strength, good ductility, good ability to absorb radiation and good electrical performance and others.