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Millimeter wave traveling wave tube diamond energy transmission window and processing method

A technology of diamond and traveling wave tube, which is applied in the field of millimeter wave traveling wave tube diamond energy transmission window and its processing technology, can solve the problems of high structural stress, thermal conductivity needs to be improved, welding and sealing can not be achieved, so as to improve output power and work The effect of wide bandwidth, easy industrial processing and production, and reasonable process design

Inactive Publication Date: 2015-12-23
NANJING SANLE ELECTRONICS INFORMATION IND GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The energy transmission window is an important component of the millimeter-wave traveling wave tube. The energy transmission window needs to reduce high-frequency loss and improve thermal conductivity. The material and structural design of the energy transmission window in the prior art are not ideal, the output efficiency is low, and the high-frequency loss is serious. Thermal conductivity needs to be improved
[0003] Diamond has a covalent bond structure and does not contain a glass phase. It is easy to carbonize when sintered at high temperature, and cannot be used for conventional metallization processes.
Although the diamond material itself has high strength, it cannot withstand high structural stress due to its thin thickness, and it is easy to burst during welding
Conventional welding process can not weld the seal

Method used

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  • Millimeter wave traveling wave tube diamond energy transmission window and processing method
  • Millimeter wave traveling wave tube diamond energy transmission window and processing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Such as figure 1 As shown, a millimeter-wave traveling wave tube diamond energy transmission window is characterized in that it includes: an upper metal part (1), a lower metal part (2), which are welded on the upper metal part (1) and the lower metal part (1) by gold-based solder A diamond window (3) between the metal parts (2), wherein the diamond window (3) is plane welded to the upper metal part (1) and the lower metal part (2);

[0034] The thickness of the diamond window (3) is 0.2mm.

[0035] Performance test: compare the diamond energy transmission window of the present invention with the traditional energy transmission window, and carry out various performance tests. The specific test results are shown in Table 1:

[0036] Table 1 Performance test results of diamond energy transmission window and traditional energy transmission window

[0037]

[0038] The experimental results in Table 1 above show that the diamond energy transmission window of the millime...

Embodiment 2

[0040] A method for welding a diamond energy transmission window of a millimeter wave traveling wave tube, comprising the following steps:

[0041] 1) Assembling the diamond window and the gold-based solder between the upper metal part and the lower metal part;

[0042] 2) Then send it into the welding furnace and weld in a vacuum environment; the specific welding process parameters are as follows:

[0043] a. Vacuum degree is 1~5×10 -3 Pa;

[0044] b. The welding temperature is 950℃~1030℃, and the holding time is 2~3 minutes;

[0045] c. The heating and cooling rate is 100~300℃ / h.

[0046] 3) Take it out after cooling down naturally.

[0047] After the diamond energy transmission window is successfully welded, the relevant reliability verification work is carried out. Weld the energy transmission window components with the sealing gold cylinder, connect the lower end of the sealing gold cylinder to the discharge pipe, and weld it with the tee connected to the vacuum gaug...

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Abstract

The invention discloses a millimeter wave traveling wave tube diamond energy transmission window and a processing method. The energy transmission window comprises an upper metal piece (1), a lower metal piece (2) and a diamond window sheet (3) which is welded between the upper metal piece (1) and the lower metal piece (2) through a gold-based solder. The diamond window sheet (3) is welded between the upper metal piece (1) and the lower metal piece (2) through a plane welding mode. A thickness of the diamond window sheet (3) is 0.2+ / -0.01mm. By using the millimeter wave traveling wave tube diamond energy transmission window provided in the invention, the structure is designed reasonably; a thermal conductivity of the millimeter wave energy transmission window can be increased and high frequency losses are reduced; output power and a work bandwidth of a millimeter wave traveling wave tube are increased and an important application value is possessed. By using the processing method of the millimeter wave traveling wave tube diamond energy transmission window, a technology design is reasonable, operability is high and industrialized processing production is easy.

Description

technical field [0001] The invention relates to an energy transmission window of a millimeter wave traveling wave tube, in particular to a diamond energy transmission window of a millimeter wave traveling wave tube and a processing technology thereof. Background technique [0002] Millimeter wave has high resolution, high precision, and high energy density, and it is an ideal millimeter wave source for millimeter wave radar, new weapons, powerful electromagnetic interference and countermeasures. The energy transmission window is an important component of the millimeter-wave traveling wave tube. The energy transmission window needs to reduce high-frequency loss and improve thermal conductivity. The material and structural design of the energy transmission window in the prior art are not ideal, the output efficiency is low, and the high-frequency loss is serious. Thermal conductivity needs to be improved. [0003] Diamond has a covalent bond structure and does not contain a g...

Claims

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Application Information

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IPC IPC(8): H01J23/36B23K20/14
Inventor 高志强梁田宋泽淳董笑瑜周智龙刘强刘颖博路兴达王晖
Owner NANJING SANLE ELECTRONICS INFORMATION IND GRP