A tapered lock seal for specimens used in axial corrosion tests

Abstract

The invention provides a tapered locking sealing device of a test sample used for an axial corrosion test. The tapered locking sealing device comprises a liner (2), a rubber plug (3), a first sealing gasket (4), a second sealing gasket (5), a gasket (6), fastening nuts (7), a top sleeve (8) and a locking nut (9), wherein the length of the test sample (1) is divided into a fixed section, a stretching section and a clamping section; the rubber plug sleeves the clamping section; the liner sleeves the rubber plug by the fixed section; the tapered smallest end of the outer circle on the rubber plug is leveled with the crossed part of the clamping section and the stretching section through the rotary connection adjustment of the gasket and the top sleeve; the first sealing gasket is assembled on a cylindrical section of the liner and an overflowing box (10) sleeves the cylindrical section; then the second sealing gasket is assembled; the liner, the first sealing gasket, the overflowing box and the second sealing gasket are fastened by the fastening nuts; and the top sleeve is fastened by the locking nut so that the connection is firm even if the test sample is broken and a corrosion box (11) is damaged, and corrosion liquid cannot leak.

Description

technical field [0001] The invention belongs to the technical field of material testing, and in particular relates to a tapered locking and sealing device for samples used in axial corrosion tests. Background technique [0002] Samples of various materials often need to be tested for axial tension in a corrosive environment. At this time, the sample is processed into a fixed section, a tensile section and a clamping section. The lengths of the fixed section and the tensile section are basically equal, and the clamping section The length is longer than the fixed section or the stretching section. The shape and structure of the fixed section and the clamping section are the same. A corrosion box is placed in the small part of the stretching section and the clamping section. The corrosion liquid is contained in the corrosion box to prevent the corrosion liquid from leaking. On the one hand, the overflow box is placed on the outer cover of the corrosion box, and on the other han...

AI Technical Summary

Problems solved by technology

[0003] The above-mentioned sealing methods of setting the sealing ring, raw tape, plasticine and rubber plug at the junction of the corrosion box and the clamping section cannot effectively solve the problem of leakage of the sealing and corrosive liquid. First, it is inconvenient to install the sample. When the sample is broken, the corrosive liquid will flow out from the joint to cause corrosion of the test equipment. Third, when the corrosion box is damaged, it will also cause corrosion to the test equipment.

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