Metal ceramic CT bulb tube and preparation technology thereof
A cermet and ball tube technology, which is applied in the coating process of metal materials, tube/lamp screen manufacturing, coating, etc., can solve the problems of reducing the service life of the tube, the problem of sparking the tube, and the low thermal radiation coefficient. Achieve excellent electrical conductivity, good vacuum performance, and high thermal radiation coefficient
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[0019] The preferred embodiments of the present invention will be described in detail below.
[0020] A metal ceramic CT tube, the surface of the metal shell of the CT tube is coated with a dark material coating.
[0021] Coating is Fe 3 O 4 Coating, the control range of coating thickness is 0.01-0.08mm; the raw material of the coating is selected from micro-nano Fe with purity above 99% 3 O 4 Powder, the particle size of the powder can be selected between 1nm-1μm.
[0022] A process for a metal ceramic CT tube is characterized in that it includes the following steps:
[0023] 1) Use high-temperature tape to shield and protect the parts of the metal shell that do not require sandblasting in advance. The shielding range is: 15-30mm from the inner upper and lower circumference of the opening and 15-30mm from the window periphery to the opening, and the entire outer;
[0024] 2) Select 16-50 brown corundum sand, the pressure of the sandblasting machine is 0.3-0.6Mpa, and sandblast the unco...
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