Epoxy coal tar anti-corrosion steel pipe for water supply 8710 anti-corrosion steel pipe manufacturer

Description :

　　IPN8710 polymer non-toxic coating for water supply pipeline internal anti-corrosion of steel pipes. Sales of epoxy coal tar anti-corrosion coatings, IPN8710 coatings, chlorinated rubber anti-corrosion coatings, polyurethane anti-corrosion coatings, and other anti-corrosion coatings. High density polyethylene polyurethane foam insulated steel pipe. Epoxy coal tar anti-corrosion spiral steel pipe is commonly referred to as "several cloth and several oil". Common types include one cloth and two oil, three oil and two cloth, three cloth and four oil, three cloth and five oil, six oil and two cloth, four cloth and six oil. The components of epoxy coal tar anti-corrosion spiral steel pipe are epoxy coal tar primer and topcoat, both of which are mainly composed of epoxy resin and coal tar as film-forming materials. During on-site construction, the interval time for coating should be determined based on the performance of the coating and weather conditions. If the interval between paint reapplication is too long, the paint surface needs to be roughened with sandpaper or grinding wheel before applying the final coat of paint. 7. After the steel sandblasting is qualified, the primer should be applied immediately. Therefore, attention should be paid to the influence of dust on the painting. When painting, try to stay away from the sandblasting area or suspend the sandblasting construction as much as possible. 8. The operation of epoxy coal tar paint should be carried out according to the material instructions and specifications provided with the goods.

　　Internationally, it is widely believed that epoxy coal tar paint is an ideal anti-corrosion coating for underground actinide layout components, and all key projects of Haiyuan Construction cannot do without epoxy coal tar anti-corrosion paint. Epoxy coal tar paint with strong anti-corrosion properties has been highly valued in the deployment of modern chemical equipment. China has abundant coal tar resources, but due to outdated processing techniques, it has been widely accepted. 3. Good flexibility: Polyethylene pipes are a type of high toughness pipe with a fracture elongation of over 500%. The flexibility of polyethylene pipes makes them easy to bend. In engineering, obstacles can be bypassed by changing the direction of the pipeline. In many cases, the flexibility of the pipeline can reduce the amount of pipe fittings and lower installation costs. The service life of 3pe anti-corrosion pipes is extended by 3-5 times. (1) Through a review of the 30-year application history of polyethylene anti-corrosion coatings in Europe, although theoretically corrosion or stress corrosion cracking may occur under peeling anti-corrosion coatings, there have been no cases of under film corrosion or stress cracking under peeling anti-corrosion coatings so far. At the Mannesmann Institute in Germany, long-term corrosion laboratory experiments were conducted to simulate the application effect of anti-corrosion coatings. The corrosion experiment environment includes soil and water. The main focus of the experiment is to check for stress corrosion cracking issues. The experimental anti-corrosion method involves placing defective polyethylene coated steel pipes under corrosive and stress conditions.

　　The quality of the epoxy coal tar anti-corrosion steel pipe coating should meet the following requirements: 1. The primer and intermediate coat must be brushed or rolled evenly, without sagging or exposing the bottom, and the thickness and total thickness of each coating must meet the specified thickness requirements. 2. The surface paint film of the topcoat coating is smooth and full, with uniform color, and there are no visible brush marks, scars, sagging, or bubbles with the naked eye. Coating quality control: Coating construction shall not be carried out in strong winds, rain, heavy fog, or when the relative humidity is greater than 85%. After the surface treatment is completed and accepted, the primer must be applied within 4 hours. If the primer cannot be applied within * due to construction progress or weather conditions, the surface treatment must be carried out again before painting the next day. After the construction conditions meet the requirements, strictly follow the mixing ratio on the paint user manual to mix the paint and ensure that the protective performance of the paint is fully utilized. After the completion of the primer and intermediate coat, there should be no rust, cracks, scratches, or adhesives on the surface, and the primer layer should not have any damage such as bumps, scratches, etc. If the polyurethane coating cannot be applied to the coating thickness in one coat, the wet touch wet coating method should be used for two coats, that is, the next coat should be applied after the coating surface is dry and before it is dry, to ensure a tight bond between the coatings. The thickness of each coating and the total thickness must meet the specified thickness requirements; Before the polyurethane coating dries, avoid rain and exposure to high humidity environments. Various paints require the use of specialized diluents, which should be classified and stored according to their varieties to avoid the occurrence of incorrect or indiscriminate use of diluents. Anti corrosion steel pipe refers to a pipeline designed to prevent chemical and microbial metabolic activity, erosion, deterioration, and corrosion protection measures caused by internal and external electrochemical reactions. To avoid corrosion protection techniques for pipelines, soil, air, and transportation media (such as oil, natural gas, etc.). Most oil and gas pipelines in the complex soil environment of public transportation have corrosive transmission media, which may cause corrosion of the inner and outer walls of the pipes.

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