1.What is black galvanized pipe used for?
Black galvanized pipe is a kind of pipe that coats the surface of ordinary black steel pipe or black iron pipe with a layer of zinc to improve its anti-corrosion performance.(1) Anti-corrosion performance
Galvanized black steel pipes are coated with a layer of zinc on the steel surface to form a zinc coating, thereby effectively preventing corrosion of steel pipes in humid, acidic or alkaline environments.(2) Extend service life
Due to the presence of the galvanized layer, galvanized steel tubes have a longer service life than ungalvanized steel pipes.(3)Wide application fields
Galvanized black steel pipes are widely used in construction, industry, agriculture, municipal administration and other fields to transport bodies, gases, solids and other substances.(4) Improve strength and durability
Galvanized steel pipes are also commonly used in structural projects such as guardrails, stair handrails, bridges, road guardrails, etc. to provide strength and durability.(5)Application in special environment
In special working environments that require corrosion resistance and greater durability, such as the petroleum industry, offshore oil fields, chemical coking equipment, nuclear power plants, etc., galvanized steel pipes are also an important choice.2.Does black galvanized pipe rust?
Galvanized black steel tubes will rust; if you choose to use them as water pipes, a large amount of rust will be produced in the pipes after a few years, which will also affect the quality of the water; the water flowing out will be accompanied by rust stains, which is It is not clean, and it will also contaminate the sanitary ware, causing bacteria to grow on the inner wall; if people drink this water for a long time, it will cause excessive heavy metals in the body, seriously interfering with people's health.
In order to prevent the galvanized steel pipe from rusting, current clarinet manufacturers will oxidize the inner layer to make it last longer. However, after the oxide layer fails, the galvanized steel pipe will still rust.
3. How to maintain and maintain galvanized black pipes?
(1) Long-term maintenance
It needs to be emphasized that although galvanized black steel pipes have strong corrosion resistance, they are not completely maintenance-free. If no treatment is carried out for a long time, the steel pipe will be continuously eroded by the external environment, and the degree of corrosion and wear will continue to increase until its normal performance and life are affected.(2)Avoid humid environment
In our daily use, avoid storing it in a humid environment, otherwise it will cause oxidation on the surface of the galvanized black tube and affect its life, so as to extend the service life of the product and ensure product quality.(3) Appearance cleaning
Dirt, dust, oil, etc. on the surface of the steel pipe will affect its normal use. Therefore, the surface of the steel pipe needs to be cleaned and maintained regularly. Generally speaking, special cleaning agents and water should be used for surface cleaning of steel pipes. Dust and dirt accumulated on the pipe wall should be completely removed, and care should be taken to prevent the pipe wall from being damaged during the cleaning process.(4) Internal corrosion protection of steel pipes
Internal corrosion of steel pipes is usually caused by corrosion of the medium in the pipe, intrusion of moisture or oxygen, etc. In order to avoid this situation, the pipeline needs to be anti-corrosion treated. Under normal circumstances, internal coating with anti-corrosion coatings such as polyvinyl chloride and polyethylene is a common method. It can not only prevent corrosion inside the pipeline, but also reduce the evaporation of water in the pipe, thereby protecting the pipeline.
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