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Test-piece support for corrosion test

A corrosion test, test piece technology, applied in the direction of weather resistance/light resistance/corrosion resistance, measuring devices, instruments, etc., can solve the problems of limited test pieces, evaluation, limited quantity, etc., and achieve excellent chemical corrosion resistance and good insulation. and corrosion resistance, adjust the effect of ease of use

Active Publication Date: 2013-03-06
CHINA PETROLEUM & CHEM CORP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The vertical test piece generally adopts the method of linear hanging. The disadvantage of this method is that the test piece is easy to swing back and forth, especially when the corrosion medium fluctuates, it is difficult for the test piece to remain stable, which will cause serious interference to the corrosion test results.
[0007] At present, there are few patents about the test piece support. CN2672645A discloses a test piece shelf used on a test instrument, which is mainly used in a salt spray test chamber. It is composed of a support, a rotatable shelf, and a positioning piece. Only 2 to 4 parallel samples can be evaluated at one time, the number is very limited, and the test piece is not fixed firmly, and it is unstable during the test; CN101782498A discloses a test piece hanger for autoclave testing, including alumina ceramic columns, two Composed of alumina ceramic round rods, each rod can hang two parallel test pieces, and the test pieces for evaluation are also very limited, and multiple test piece samples cannot be evaluated

Method used

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  • Test-piece support for corrosion test
  • Test-piece support for corrosion test
  • Test-piece support for corrosion test

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] exist figure 1 and figure 2 Among them, the bottom of the ring 1 is provided with 3 circular positioning holes evenly distributed, the support rod 4 is inserted into the positioning hole 3, and fixed on the support rod by the nut 8, and the inner side of the ring 1 is provided with 6 threads evenly distributed Groove 2; one end of the hanger rod 5 is threadedly connected in the threaded groove 2 of the ring 1, and the other end of the hanger rod 5 can penetrate the test piece, and then the cover locator 7 is fixed. The corrosion test specimen holder can hang six test specimens at one time, which can fully improve the efficiency of corrosion evaluation.

Embodiment 2

[0040] exist image 3 and Figure 4 Among them, the difference from Example 2 is that the corrosion test specimen bracket is a double-layer structure, the outside of the ring is slotted, and there are 6 slots on each layer. The assembly method is the same as that of Example 1. The corrosion test specimen The bracket can hang 6 test pieces in the vapor phase position in the corrosive medium, 6 in the liquid phase, and can hang 12 test pieces at one time, and the corrosion evaluation efficiency is further improved.

Embodiment 3

[0042] exist Figure 5 and Figure 6 Among them, the difference from Examples 1 and 2 is that the corrosion test specimen support has a three-layer structure, the outside of the ring is slotted, and there are 12 slots on each layer. The assembly method is the same as in Example 1. The corrosion test The test piece holder can hang 12 test pieces for the vapor phase position in the corrosive medium, 12 for the liquid phase, and 12 for the vapor-liquid interface, and a total of 36 test pieces can be hung. very significant.

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PUM

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Abstract

The invention discloses a test-piece support for a corrosion test. The test-piece support is composed of a circular ring, support rods, piece hanging rods and nuts. The test-piece support is characterized in that uniformly distributed positioning holes are arranged in the bottom of the circular ring; the support rods are inserted into the positioning holes to be connected with the circular ring for fixing by the nuts; uniformly distributed thread grooves are arranged in the side of the circular ring; one ends of the piece hanging rods are embedded in the thread grooves and the other ends of the piece hanging rods are used for hanging an corrosion test test-piece; and the other ends of the piece hanging rods are fixed by positioning pieces after hanging the test-piece. The test-piece support for the corrosion test is convenient to adjust and use, simple in structure, efficient in corrosion evaluation performance and favourable in insulativity and corrosion resistance.

Description

technical field [0001] The invention relates to a test piece support, in particular to a test piece support for corrosion test. Background technique [0002] Metal corrosion refers to the phenomenon that the metal surface and the surrounding medium undergo chemical or electrochemical actions, resulting in damage to the metal. The phenomenon of metal corrosion pervades all fields of the national economy, and the damage is very serious. Corrosion will not only consume a large amount of metals, consume precious resources and energy, and cause huge direct economic losses, but also cause premature failure of equipment, decline in product quality, pollute and deteriorate the environment, and cause sudden catastrophic accidents, endangering personal life Safety. [0003] Corrosion has become an important factor affecting the sustainable development of the national economy and society. Therefore, rational selection of corrosion-resistant materials has become an effective method of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N17/00
Inventor 李朝法于凤昌唐应彪
Owner CHINA PETROLEUM & CHEM CORP
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