LuoYang KeShen Tungsten&Molybdenum Technology Co.,LTD

30/03/2017

15/02/2017

W bars electrodes,
Tungsten has high melting point, strong electron emission ability, high elastic modulus and low v***r pressure, so tungsten electrode was used as thermal electron emission material early.
The shape of tungsten electrode tip is an important factor for TIG.
Characteristics of tungsten electrode:
Tungsten welding electrode has excellent welding performance, great arc starting capacity with good arc stability, low electrode burning loss, long service life, free of slag and splashing and high welding quality.
Tungsten electrode plays an important role in tungsten argon arc welding of arc, arc stability and welding quality.
Applications of tungsten electrode:
Tungsten electrode is used for inert gas protection arc welding, plasmacutting, spray-coating and furnace melting.
Surface conditions of tungsten electrode:
Grinding, cleaning, electrolysis polishing, drawing or forging.

14/02/2017

W crucibles
Brief introduction:
Tungsten crucible is one of tungsten products. It is mainly divided into sintering (applied to powder metallurgy technology), stamping, spinning type of tungsten crucible. Using pure tungsten plate, tungsten sheet and tungsten rod through the corresponding technology to produce tungsten crucible. Tungsten crucible can be used in vacuum inert gas under 2600 degrees.
Applications of tungsten crucible:
Tungsten crucible is widely used in sapphire single crystal growth furnace, quartz glass melting furnace, rare earth smelting furnace and other core containers of industrial furnace. Its operating temperature environment is more than 2000 degrees.
Characteristics of tungsten crucible:
Tungsten crucible has high purity, high density, no crack, precise size, smooth inside wall and outside wall.
The possible internal injuries of tungsten crucible, such as porosity, slag and cracks are double strictly inspected to ensure the quality of tungsten crucible.
The crystal structure of tungsten crucible is compact.

14/02/2017

Brief introduction:
Tungsten bar has low content of impurities and good processing performance.The tungsten density is 18g/cm3-18.3g/cm3 and tungsten purity is more than 99.95%.
Characteristics of tungsten bar:
The melting point of tungsten bar is 3410℃. Tungsten bar has Excellent thermal/electric conductivity. The crystal structure of tungsten bar is impact, so tungsten bar has good erosion resistance.
Applications of tungsten bar:
Tungsten bar is generally used to manufacture emitting cathode, high temperature setting lever, support, lead, print needle and all kinds of electrodes and the quartz furnace heater.
Appearance of tungsten bar:
Tungsten bar has no bending, crack, burr, peeling and other defects affecting the further uses.
1 .tungsten bar chemical compositions and applications:

type purity of tungsten application
WAL1 >=99.92% filament,cathode and components for electron tubes,electrode for the gas discharge tube.etc.
WAL2
WAL3 >=99.92% grid siderod,lead,support,electrode for the discharge lamp,etc.
W1 >=99.95% grid siderod,support,lead and electrode,etc.

2. tungsten bar forms and dimensions:

furnished form specified diameter min.length
wroughted 2.8

21/01/2017

Molybdenum rods, molybdenum wire, molybdenum crucible etc.