TPEP anti-corrosion steel pipe manufacturer Hebei Tianze

Anti-corrosion steel pipe manufacturer Hebei Tianze Pipeline Equipment Co., Ltd. (Manager Bi) is one of the top anti-corrosion steel pipe manufacturers in Cangzhou. The company specializes in the production of anti-corrosion steel pipes, anti-corrosion steel pipes, reinforced anti-corrosion steel pipes, ordinary anti-corrosion steel pipes, and anti-corrosion steel pipes. Seamed steel pipe, anti-corrosion straight seam steel pipe, anti-corrosion spiral steel pipe, reinforced anti-corrosion seamless steel pipe, reinforced anti-corrosion straight seam steel pipe, reinforced anti-corrosion spiral steel pipe, large diameter anti-corrosion steel pipe, small diameter anti-corrosion steel pipe, anti-corrosion steel pipe, reinforced anti-corrosion steel pipe, Manufacturers of ordinary anti-corrosion steel pipes, anti-corrosion seamless steel pipes, anti-corrosion straight seam steel pipes, anti-corrosion spiral steel pipes, as well as prices and quotations of anti-corrosion steel pipes. Welcome to call for consultation during the hour. Industry introduction of double-sided submerged arc welding straight seam steel pipe manufacturers. Hebei Ruitai Pipeline Equipment Co., Ltd. has two thermal expansion steel pipe production lines, thermal expansion specifications: and two large-diameter straightening machines. Large pipe rolling machine, automatic welding machine, pipe coil specifications: hmmhmm, wall thickness mm. Processing and sales of large diameter straight seam pipes and welded long pipes. Large diameter steel pipes are made seamless. (can be used for flaw detection), our company is committed to producing circumferential and longitudinal circumferential seam welded pressure steel pipes and steel pressure steel pipes and transforming them on the basis of similar specifications and models of traditional rolling equipment. The function of improving various parameters of coiled and welded steel pipe equipment by % fills the gap that the original traditional coiling equipment cannot produce. The materials mainly include Q, Q,, M,, etc. Products are widely used in petroleum, chemical industry, natural gas transportation, piling and urban water supply, heating, gas supply and other projects. Our company wins the trust of customers with quality, meets market demand with technology, and strives for perfection. Beigang Company has complete product testing equipment such as advanced radiographic industrial television online flaw detection, ultrasonic online flaw detection, magnetic particle flaw detection, and hydraulic pressure. It undertakes the export of fixed-length steel pipes. .
A review of the annual application history of polyethylene anti-corrosion layers in Europe shows that although corrosion or stress corrosion cracking will theoretically occur under the peeled-off anti-corrosion layer, there has been no case of sub-film corrosion or stress cracking under the peeled-off anti-corrosion layer. case. At the Mannesmann Institute in Germany, long-term corrosion laboratory experiments have been conducted to simulate the effect of anti-corrosion layer application. The corrosion experiment environment includes soil and water. The test mainly examines the problem of stress corrosion cracking. The experimental anti-corrosion is to place the defective polyethylene anti-corrosion layer steel pipe under corrosion conditions and stress conditions. The corrosion environment is a sandy soil environment containing H, and the temperature is ℃. The pipe-to-ground potential is ~m, the surface of the steel pipes is pretreated in different ways, and all steel pipes are circulated under pressure. At the end of the experiment, there was more or less peeling around the defects in the anti-corrosion layer, but no corrosion was found in the peeling area. Steel pipes without oxygen scale on the surface are prone to stress cracking. Steel pipes with oxide scale are cracked. The crack depth is m, which may be caused by stress corrosion. It is concluded that thorough surface preparation is an effective means of preventing stress cracking.
At present, the application effect of anti-corrosion layer at home and abroad is very good, and there are few reports on the defects caused by its use. The main reported shortcomings include dew point, peeling, cathodic peeling, cathodic protection shielding, peeling and corrosion under the anti-corrosion layer, etc., and most reports of defects still remain in the theoretical speculation stage. For example, the problem of cathodic protection shielding is mentioned in the data. There have been no reported instances of cathodic protection shielding occurring during actual operation of the anti-corrosion layer. Years of practice have shown that as the service life increases, the coating system with fewer defects is the extruded polyethylene layer structure anti-corrosion system.
The three-layer structure polyethylene anti-corrosion layer combines the excellent properties of the sintered epoxy powder coating and the extruded polyethylene anti-corrosion layer. It combines the interface characteristics and chemical resistance properties of the sintered epoxy powder coating with The advantages of the extruded polyethylene anti-corrosion layer, such as its mechanical protective properties, are combined to significantly improve their respective properties. Therefore, it is very superior as an outer protective layer for buried pipelines. According to relevant information, three layers can extend the service life of buried pipelines to years. Currently, it is considered to be an advanced pipeline external anti-corrosion technology internationally. In our country, three-layer systems have taken the lead in being applied in oil and gas systems. Our country's built Shaanxi-Beijing natural gas pipeline and Kushan-Shanxi oil pipeline, as well as the recent national key project West-East Gas Pipeline nearly one kilometer long, all use three layers of external anti-corrosion coating. In Tianjin, three kilometers of high-pressure pipelines from Shaanxi to Tianjin, kilometers of high-pressure natural gas pipelines on the outer ring line, and kilometers of underground gas storage pipelines on the Shaanxi-Beijing line also use three layers. It has become the development direction of the external anti-corrosion layer of pipelines in the future.