Rolling Method of Thin Tungsten Film

The present invention provides a method of rolling a thin sheet of tungsten, tungsten metal sheet to a processing method, especially a method for the rolling process the X-ray CT machine precision tungsten shielding sheet material used. Specific steps are as follows:

1) First, the blank plate is heated to a tungsten sheet 180 ℃ -220 ℃;

2) The mist sprayed tungsten graphite sheet blank plate incubated for 20-30 minutes and drying;

3) Heated to rolling temperature for rolling.

The present invention provides a sheet processing tungsten good uniform lubricating coating, the lubricating coating to solve the tungsten sheet surface quality and tolerance control of the adverse effects. So that the surface of the graphite sheet milk from tungsten large loss from exposure to the processing rate of about 40% to about 60%, so that the surface roughness can be achieved 1μm ~ 2μm. Dimensional tolerances of ± 0.01mm. Effectively improve the bonding strength of graphite and tungsten film surface can be mass CT machine with ultra-high precision tungsten film.


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