Method of accelerated corrosion test used for simulating corrosion process of copper and alloy thereof in atmosphere

An accelerated corrosion test, atmospheric corrosion technology, applied in the direction of weather resistance/light resistance/corrosion resistance, measuring devices, instruments, etc., can solve the problems of difficult operation, many control factors, etc. analog effect
CN102466613AInactive Publication Date: 2012-05-23GENERAL RESEARCH INSTITUTE FOR NONFERROUS METALS BEIJNG
1 Cites 6 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
GENERAL RESEARCH INSTITUTE FOR NONFERROUS METALS BEIJNG
Publication Date
2012-05-23
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention relates to a method of an accelerated corrosion test used for simulating a corrosion process of copper and alloy thereof in the atmosphere. The method comprises steps that: (1) copper or copper alloy is prepared into a test sample; (2) an aqueous solution of CuCl2, (NH4)2SO4 and NaHSO3 is adopted as an impregnation solution; (3) the sample is subject to a circulated test according to a sequence of impregnating, moisturizing, and drying; and single-time and total test times are determined according to specific requirements; (4) the sample obtained from the step (3) is treated, and researches such as corrosion weight loss, corrosion products and morphological analysis are carried out. The method provided by the invention is used for simulating the corrosion process of copper and alloy thereof in different environments such as a damp and hot environment and a marine environment. The test method has a simulating capacity, an accelerating capacity, and repeatability. The method can be used in the researches of atmosphere corrosion behaviors and rules of copper and alloy thereof in different environments, and can be used in rapid evaluations of corrosion resistances of various copper and alloy thereof.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to an accelerated corrosion test method for simulating the atmospheric corrosion process of copper and its alloys, and belongs to the simulation technical field of atmospheric corrosion of copper and its alloys. Background technique

[0002] The atmospheric corrosion of materials in the natural environment is an important basis for engineering design and anti-corrosion construction. The exposure test method in the natural environment is usually used to understand the atmospheric corrosion of materials. However, the atmospheric exposure test period is very long, often as long as several years or even longer, and the test is highly regional. People hope that the laboratory accelerated corrosion test can be used to infer the results of outdoor long-term exposure tests, and then predict materials, products, and protective layers. Atmospheric corrosion life, to partially replace the atmospheric corrosion exposure test; on the other han...

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