Intermittent immersion corrosion test method for natural sea water simulation accelerated material corrosion

A corrosion test, seawater technology, applied in the analysis of materials, weather resistance/light resistance/corrosion resistance, measurement devices, etc., can solve the problems of unclear correspondence, small volume of test facilities, and inability to carry out immersion tests between large test plates, etc. Achieve the effect of shortening the development cycle, reducing the development cost and accelerating the corrosion effect

Inactive Publication Date: 2009-06-24
725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
View PDF0 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The interleaving corrosion testing machine developed by the 725 Institute mentioned in the literature and the intermittent immersion test introduced in GB/T16168-96, the interleaving tests are indoor simulation acceleration, the medium used is artificial seawater, and the volume of the test facility is small. Can only

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Intermittent immersion corrosion test method for natural sea water simulation accelerated material corrosion

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] Two materials, A3 steel and B10 copper alloy, are selected as test plates, because these two materials are typical of ship materials, and both materials have long-term corrosion data for reference in the real sea tidal range area. The interleaving corrosion test is carried out in natural seawater, and the interleaving corrosion test device can be installed in the following places:

[0034] A. Large natural seawater pool;

[0035] B. A seawater tank with flowing natural seawater.

[0036] Two rotation speeds are used in this test method: one is one revolution in 12 hours, and the test time is 1 year; the other is one revolution in 6 hours, and the test time is also 1 year.

[0037] The dimensions of the two material test panels are: A3 steel 250×100×3mm, B10 copper alloy 250×100×5mm, processed by milling machine and grinder to a smoothness of 7 or above, degreased with acetone, dehydrated with ethanol, and placed in a desiccator for 12 hours , weighed with an analytica...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

An alternating immersion corrosion testing method for simulating the acceleration of material corrosion by natural seawater includes six parts: alternating immersion corrosion test conditions, pre-test test plate treatment, alternating immersion corrosion test, post-test sample treatment, alternating immersion corrosion rate calculation, comparison between corrosion rates in the same tidal range zone, and test report. With the natural seawater taken as an immersion medium, the large test plate alternating immersion test can be conducted. The test plate is subjected to a cyclic test in the order of firstly being immersed in the seawater, secondly being exposed to the air, and finally be immersed in the seawater. The testing method simulates and studies the law of material corroding in the tidal range zone, and evaluates the corrosion resistance and the aging resistance of the material as well as the protection effect of the protective material, thereby providing a significant technical support for designing, testing and evaluating the adaptability of the material to the marine environment, shortening the period for developing novel materials, projecting the applicable performance of novel materials in environment, increasing the success rate in developing novel materials as well as products and components thereof, and reducing the development cost.

Description

technical field [0001] The invention belongs to the technical field of material corrosion, and in particular relates to an interleaving corrosion test method for simulating accelerated material corrosion in natural seawater. Background technique [0002] The seawater tidal range test in the natural environment is a commonly used test method to study seawater corrosion. It can truly reflect the corrosion status of the material in the alternating dry and wet conditions at the location, so as to calculate the corrosion rate of the material under this environmental condition. It can provide reasonable and reliable design basis for anti-corrosion design. However, due to the long test period in the tidal range area and the strong regionality of the test, people are prompted to carry out simulated accelerated corrosion test research in order to speculate on the results of the outdoor long-term tidal range corrosion test from the indoor accelerated corrosion test, and then predict t...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G01N17/00
Inventor 于海涛郑添水庄海燕
Owner 725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap