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Inspection of pipeline cathodic protection technology
Cathodic protection is a conventional method for corrosion control of buried pipelines, which usually has two implementation paths. One is to connect the pipeline with the negative pole of the DC current source, and use the external prot...Views -
Protection of magnesium alloy from stress corrosion cracking
Most of the stress corrosion failure tests of magnesium alloys are carried out in the laboratory. In practice, the failure cases are very few, and most of them are caused by excessive residual stress.Die casting magnesium alloy is the st...Views -
About magnesium alloy anode materials
At present, magnesium anode materials are generally used to protect metal structures in high resistivity soil and fresh water. Magnesium is a common sacrificial anode material in electrochemical cathodic protection engineering, which has...Views -
Overview of carbon materials
Carbon material is a kind of cathodic protection material. Carbon material is used as anode in electrolyte solution of brine. It has appeared as early as the end of 19th century.If steel and solid carbon are used together with tamped car...Views -
Spraying technology of magnesium alloy
Metal spraying technology has been widely used in anti-corrosion, mainly for steel structures. Due to the thickness of metal spray coating, it is limited in some common applications. The method of preventing stress corrosion cracking of ...Views -
Impressed current cathodic protection of circulating water pump
Due to the complexity of the structure, the diversity of materials and the harsh process conditions, the corrosion protection of the circulating water pump is much more difficult than that of the general structure. At present, the inner ...Views -
Function of intelligent potential acquisition instrument
With the construction of more and more buried pipeline projects, people pay more and more attention to the corrosion control of buried pipeline, and the pipeline corrosion leakage accidents are less and less.Over the years, the corrosion...Views -
On cathodic protection technology of storage tank
The corrosion of the inner wall of crude oil tank and sewage tank bottom is mainly caused by electrochemical corrosion and bacterial corrosion caused by crude oil deposition sewage, and the crude oil deposition sewage at the tank bottom ...Views -
On the current discharge protection of electromagnetic interference
In order to meet the needs of industrial production, the technical parameters and performance of the solid-state decoupling drainage device improved by the company are as follows: the sacrificial anode ground bed is composed of a group o...Views -
Corrosion of chemical equipment and anti-corrosion measures
With the development of economy, people's demand for chemical products is increasing, more and more production equipment run beyond their design capacity. Therefore, it has become an urgent problem for global chemical enterprises to ...Views -
Installation method of sacrificial anode cathodic protection
1. The type, quantity, distribution and connection mode of sacrificial anode cathodic protection shall meet the design requirements.2. When the sacrificial anode and anode are connected by welding, the insulation sheath of the cable shal...Views -
Potential control and detection after operation of cathodic protection system
Before the operation of the cathodic protection system, staff should be arranged to measure the natural potential of the whole protected pipeline, the natural potential and grounding resistance of each anode ground bed, and the soil resi...Views