GB/T 12466-2019 in English
VALIDTerminology of corrosion and protection for ship and marine engineering
- Issued on:2019-10-18
- Implemented on:2020-05-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$233.00
本标准界定了船舶及海洋工程金属腐蚀及试验方法、电化学保护和涂(镀)层保护等方面的术语及其定义。
本标准适用于船舶及海洋工程金属腐蚀与防护领域的科研、设计、生产、实践和教学等活动。
Introduction
GB/T 12466—2019 Standard In-depth Interpretation
GB/T 12466—2019 "Terms of Corrosion and Protection for Ships and Offshore Engineering" is an important standard in China's standardization field, which aims to standardize the terms related to corrosion and protection in the field of shipbuilding and offshore engineering. This article will provide a detailed interpretation from four aspects: standard background, core content, technical evolution and implementation recommendations.
1. Background of Standard Formulation
| Background Dimensions | Specific Content |
|---|---|
| Industry Demand | The demand for anti-corrosion technology in the field of shipbuilding and offshore engineering is increasing, and the standard is updated to adapt to the development of new technologies. |
| Technological progress | With the progress of material science and electrochemical protection technology, the original standard can no longer cover the latest technology. |
| Internationalization trend | Keep pace with the world and enhance the international market competitiveness of Chinese ships and marine engineering. |
2. Interpretation of core terms
The standard defines a large number of terms related to corrosion and protection. The following are the key terms and their application cases:
The loss and destruction process of metals under the action of media. For example, in the marine environment, pitting and crevice corrosion of steel structures caused by salt spray erosion are particularly common.
Keyword: cathodic protectionThe technology of reducing the corrosion rate of metals by electrochemical methods. It is usually achieved by sacrificial anode or impressed current, such as the application of zinc blocks for rust prevention on the bottom of ships.
Keywords: coating protectionAnti-corrosion coating is applied to the metal surface to form a barrier layer. For example, epoxy resin coating is widely used for the protection of the waterline area and splash zone of ships.
3. Analysis of technological evolution
| Technical dimensions | Evolution process | Latest progress |
|---|---|---|
| Corrosion test methods | Developed from simple laboratory tests to real sea environment simulation. | The introduction of long-scale corrosion tests and deep-sea corrosion tests is closer to the real environment. |
| Protection technology | Traditional coatings are gradually replaced by electrochemical protection. | Intelligent cathodic protection system combines IoT technology to achieve remote monitoring. |
| Material Science | From ordinary steel to corrosion-resistant alloys. | Develop high-silicon cast iron and mixed metal oxide anodes to improve anti-corrosion efficiency. |
4. Implementation Suggestions
To ensure the effective implementation of the standard, the following suggestions are put forward:
- Strengthen industry training to enhance technical personnel's understanding of new terms and new technologies.
- Promote technological innovation and develop more efficient anti-corrosion materials and equipment.
- Establish a unified testing platform to ensure the standardized implementation of test methods.
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