Intercrystalline corrosion testing tooling

Abstract

The invention provides an intercrystalline corrosion testing tooling. The intercrystalline corrosion testing tooling comprises a support part (10) extending in a vertical direction, a vertical movement part arranged on the support part (10) in a vertical direction relative to the moving mode of the support part (10), and a locating part (50), wherein the vertical movement part is provided with a test piece contact part (21) and a metal object contact part (31), the metal object contact part (31) and the test piece contact part (21) are arranged in a spacing manner in a horizontal direction, and the vertical movement part has a locating state fixed relative to the support part (10) in the vertical direction under the action of the locating part (50). The intercrystalline corrosion testing tooling is convenient for intercrystalline corrosion tests.

Description

technical field [0001] The invention relates to the technical field of test tooling, in particular to an intergranular corrosion test tooling. Background technique [0002] At present, stainless steel water inlet pipe components are used in hot water machine accessories, which are soaked in hot water for a long time and are easily affected by chloride ions in the water. For example, in the heat-affected zone of the weld in the water pipe assembly, structural defects can easily lead to quality hazards such as corrosion, perforation and leakage. In this regard, the inspection of each batch of incoming goods is carried out by sampling the welding part of the stainless steel water inlet pipe assembly for intergranular corrosion test monitoring. The specific operation is to clamp the sample and the metal object with two clips on the wire, and place the sample And metal objects are immersed in 10% oxalic acid solution, and the etching time is 90 seconds. Since the above process a...

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Problems solved by technology

[0002] At present, stainless steel water inlet pipe components are used in hot water machine accessories, which are immersed in hot water for a long time and are easily affected by chloride ions in the water.

For example, in the heat-affected zone of the weld in the water pipe assembly, structural defects can easily lead to quality hazards such as corrosion, perforation and leakage

In this regard, the inspection of each batch of incoming goods is carried out by sampling the welding part of the stainless steel water inlet pipe assembly for intergranular corrosion test monitoring. Immerse metal objects in 10% oxalic acid solution, and the etching time is 90 seconds. Since the above process always requires the staff to hold the clips on the two-pole wires, the test operation is very inconvenient

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