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Atmospheric corrosion exposure test device and method for metal test samples

A technique for atmospheric corrosion and metal samples, used in weather resistance/light resistance/corrosion resistance, measuring devices, instruments, etc.

Inactive Publication Date: 2018-05-04
STATE GRID JIANGXI ELECTRIC POWER CO LTD RES INST +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As we all know, in the atmospheric environment, the corrosion process of materials occurs under a thin liquid film, which is very different from the corrosion in the solution. Moreover, the previous research on galvanic corrosion rarely uses real-time monitoring methods to directly reflect the galvanic corrosion process. process

Method used

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  • Atmospheric corrosion exposure test device and method for metal test samples
  • Atmospheric corrosion exposure test device and method for metal test samples
  • Atmospheric corrosion exposure test device and method for metal test samples

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Install and fix according to the test device, adjust the rotation axis so that the angle between the first inclined beam 10 and the horizontal plane is 15, the height of the base fixing bracket 1 is 10cm, the width is 1m, and the length of the inclined beam is about Four horizontal beams that are parallel to each other and perpendicular to the inclined beam are evenly installed on the inclined beam. The beam is provided with a slot for placing metal samples; the upper two constitute the upper area, and the lower two constitute the lower area.

[0040] Prepare at least 10 pieces of Q235 steel and 10 pieces of galvanized steel metal samples; Q235 steel and galvanized steel are divided into a pair, and the non-working surface is sealed with epoxy resin; 5 pairs of back welding wires As a galvanic corrosion metal sample, the galvanic corrosion metal sample is placed in the lower area; another 5 pairs of samples are placed in the upper area as comparison samples; the spacing bet...

Embodiment 2

[0047] Install and fix according to the test device, adjust the rotation axis so that the angle between the inclined beam and the horizontal plane is 30, the height of the base fixing bracket is 10cm, the width is 1m, and the length of the inclined beam is about The oblique beam is composed of a first oblique beam and a second oblique beam. One end of the waist hole of the second oblique beam is connected to the third hole on the rear vertical beam (the third mounting hole of the rear vertical beam from top to bottom) through a bolt. The other end of the waist hole of the two oblique beams is connected with the first oblique beam installation screw hole through bolts, and the bolts are tightened after the first oblique beam and the second oblique beam are straightened.

[0048] Preparation of Q235 steel, galvanized steel, copper-plated steel, zinc-clad steel, copper, zinc metal samples, Q235 steel and galvanized steel, Q235 steel and copper-plated steel, Q235 steel and zinc-clad s...

Embodiment 3

[0054] Referring to the operation in Embodiment 2, only the angle of the inclined beam and the horizontal plane is changed to 45 and 60 respectively.

[0055] When the angle between the inclined beam and the horizontal plane is 45, the length of the inclined beam is approximately The oblique beam is composed of a first oblique beam and a second oblique beam; at this time, the waist hole at one end of the second oblique beam is connected to the second mounting hole on the rear vertical beam by bolts, and the second oblique beam is connected to the first oblique beam. connection.

[0056] When the angle between the inclined beam and the horizontal plane is 60, the length of the inclined beam is about The oblique beam is composed of the first oblique beam and the second oblique beam; at this time, the waist hole at one end of the second oblique beam is connected to the first mounting hole on the rear vertical beam by bolts, and the second oblique beam is connected to the first obliqu...

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Abstract

The invention relates to an atmospheric corrosion exposure test device for metal test samples. The device comprises a base fixing bracket (1), two inclined beams (3), a plurality of cross beams (4), two back vertical beams (8) and an atmospheric corrosion detector mounting box (2). One ends of the two inclined beams are separately mounted at two ends of a rotatable shaft (7) at the front end of the upper portion of the fixing bracket while the other ends are separately mounted on the two back vertical beams; the plurality of cross beams are parallelly and vertically mounted on the two inclinedbeams separately; the cross beams are divided into upper and lower regions; metal test samples (5) are symmetrically placed in the upper and lower regions separately; an atmosphere temperature / humidity inductor is mounted in the lower region, and an atmospheric corrosion detector monitors, records and stores couple corrosion currents and atmosphere temperature / humidity of special metal test samples. The device can analyze the relationship between atmospheric metal galvanic corrosion and lighting angle by means of corrosion weight loss, corrosion products, corrosion morphology, corrosion current and the like of the metal test samples in the regions at different angles.

Description

Technical field [0001] The invention relates to a metal sample atmospheric corrosion exposure test device and method, and belongs to the technical field of metal anticorrosion test equipment. Background technique [0002] The traditional atmospheric corrosion exposure test is mostly carried out in the atmospheric corrosion test station. The exposure test frame with the metal sample is fixed on the cement floor, which is relatively stable and managed by special personnel, and the test conditions are relatively perfect. However, for the atmospheric corrosion resistance test of the metal materials of the power grid transmission line towers, it is necessary to carry out long-term on-site metal sample coupon tests on the transmission line towers under more severe environments. Due to the influence of outdoor typhoons and heavy rains, the metal samples There is a risk of falling off and loss, and the traditional exposure test frame requires a sample clamp to fix the sample, the structu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N17/00
CPCG01N17/002G01N17/004G01N17/006
Inventor 田旭李志美裴锋刘欣贾蕗路毛荣军李财芳郑湘娟何弦皮婷张晓钟晓丽卓德煌
Owner STATE GRID JIANGXI ELECTRIC POWER CO LTD RES INST
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