Waveguide window manufacturing method

Abstract

The invention relates to the field of shielding devices, in particular to a waveguide window manufacturing method. The waveguide window manufacturing method includes the following steps: at least two base materials are stacked, and a layer of tin foil is arranged between the base materials; the base materials and the tin foil between the base materials are locked tightly to form an integral component; the integral component is placed in scaling powder solution to be soaked for preset time and taken out; and the integral component is baked, the baking temperature is less than 900 DEG C. According to the waveguide window manufacturing method, the integral component is placed in the scaling powder solution to be soaked for the preset time, oxides on the surfaces of the base materials can be removed by scaling powder, reoxidation on the surfaces of the base materials is avoided during welding so as to enable the base materials and welding line surfaces to be clean and free of oxides in a welding process, and therefore manufactured waveguide windows are smooth in surfaces. In addition, the baking temperature is less than 900 DEG C. In a manufacturing process, the waveguide window manufacturing method enables the base materials to keep appropriate properties, reduces deformation of the base materials, and improves molding rate of the waveguide windows manufactured by the method.

Description

technical field [0001] The invention relates to the field of shielding equipment, in particular to a manufacturing method of a waveguide window. Background technique [0002] In order to keep the air inside the information machine room in circulation with the outside air, it is necessary to install a waveguide window in the information machine room that can ensure the air circulation and prevent the leakage of electromagnetic signals. The waveguide window is a waveguide bundle composed of many waveguides, and the cross-sectional shape of the waveguide is hexagonal, square, circular or other predetermined shapes. [0003] The waveguide window can effectively prevent the leakage of electromagnetic waves inside the information machine room, and form the main channel for the exchange of the air inside the information machine room with the outside air. [0004] There are two existing methods for manufacturing waveguide windows: a manufacturing method of immersion tin and a manuf...

AI Technical Summary

Problems solved by technology

[0019] During the immersion process of the immersion tin manufacturing method, the connected iron frame floats on the liquid tin-lead, therefore, a certain pressure needs to be manually applied to immerse the iron frame in the liquid tin-lead; due to the high viscosity of the liquid tin-lead, this A large amount of liquid tin-lead will accumulate in one place, making the surface of the base metal uneven; this method is also prone to leakage, that is, the liquid tin-lead cannot be completely immersed in each layer of base metal

[0020] In the high-temperature vacuum brazing manufacturing method, the temperature of vacuum brazing is above 900°C, while the melting point of the iron base material is 1535°C, and the iron base material will soften and deform at a temperature above 900°C, although the manufactured waveguide The surface of the window is relatively flat, but the forming rate of the waveguide window is reduced

[0021] Therefore, the existing waveguide window manufacturing method either produces an uneven surface of the waveguide window, or produces a relatively flat surface of the waveguide window but reduces the molding rate, which cannot meet the actual needs.

Images