Support connecting device for thin-walled capillary tube strength test

Abstract

The invention relates to a support connecting device for thin-walled capillary tube strength test. The support connecting device is a rectangular frame composed of a support frame, an intermediate supporting plate and a wedge-shaped block. Left-right penetrating grooves are formed in a crossbeam on the upper part of the rectangular frame, thin-walled capillary tubes are placed into the left-rightpenetrating grooves, single-hole plug positioning grooves are formed in the crossbeam on the upper part of the rectangular frame and correspond to positioning grooves in the intermediate supporting plate in an one-to-one mode in number and position; a seam is formed in one side of the crossbeam on the upper part of the rectangular frame; meanwhile, through holes are formed in the left side and theright side of the rectangular frame, and thus it is ensured that the positions of the through holes correspond to one another; left-right penetrating grooves are formed in the upper surface of the intermediate supporting plate, single-hole plug positioning grooves continue being formed in the upper surface of the intermediate supporting plate, the positioning grooves is evenly distributed at intervals, the positioning grooves correspond to positioning grooves in the support frame in an one-to-one mode in number and position; two blind holes are formed in the left end face and the right end face of the intermediate supporting plate and keep consistent with the wedge-shaped block in shape; and the shape of single-hole plugs are machined, countersunk head slots are drilled in the end faces of one sides of the single-hole plugs, holes are formed in the surfaces in the slots, and it is ensured that the high-temperature alloy thin-walled capillary tubes are inserted into the holes smoothlythrough the diameters of the formed holes.

Description

technical field [0001] The invention relates to a supporting connection device for strength testing of thin-walled capillary tubes, which is suitable for structural strength testing of high-temperature alloy thin-walled capillary tubes after brazing, and provides precise positioning for batch brazing of single thin-walled capillary tubes. It belongs to the field of aerospace science and technology. Background technique [0002] Strong pre-cooling hypersonic flight power technology has become a hot research field at home and abroad in recent years, and the key technology lies in the preparation of high-efficiency super pre-coolers. The precooler in the strong precooling hypersonic flight power system is mainly composed of superalloy thin-walled capillary tubes to form a core heat exchange unit, and the structural strength of the core heat exchange unit is an important index to measure the manufacture of heat exchangers. Therefore, the structural strength test of the high-tem...

AI Technical Summary

Problems solved by technology

However, the current brazing connection process and the structural strength test after brazing are often carried out with reference to the existing conventional heat exchangers, which cannot meet the pressure required by the hypersonic flight power circulation system. Due to the special working conditions of precooler thin-walled capillary brazing, it is necessary to design a special brazing support device to ensure that the structural strength test can be carried out directly after the thin-walled capillary is welded. At the same time, the device should also have high efficiency and accurate positioning Sex and other characteristics

There is currently no brazed support device that meets this requirement

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