Solvent-free epoxy coatings with low viscosity curing agent, cured coating has outstanding anti-corrosion function, hardness resistance and denseness. And there is a relatively suitable use period and curing time. In addition to the insulating property and excellent chemical stability of solvent-free epoxy coating, the coating has made great progress in adhesion, resistance, impact strength and […]
Anti-corrosion steel pipe is a commonly used carrier for oil and gas transmission, one of the important facilities of ground engineering. It is a steel pipeline that can effectively prevent or slow down the corrosion phenomenon by chemical or electrochemical reaction during transportation and use after processing by anti-corrosion process. Anti-corrosion pipeline is the link […]
Now the process of domestic spiral steel pipe are double-sided submerged arc welding, double-sided submerged arc welding skills were created and used in 1940, its welding process and hand welding has the same local, is the use of slag welding, spiral steel pipe submerged arc welding and hand welding is different from the local wire […]
Many users buy spiral steel pipe, due to the lack of professional testing equipment, this time only from the appearance of the quality of spiral steel pipe detection, the following are several common methods of determination. 1, from the surface of the spiral steel pipe to see whether the manufacturing process of spiral pipe is […]
Spiral steel pipe in the process of making spiral welded pipe, the following issues need to be noted. 1, oiling and marking: the spiral steel pipe in the inspection of qualified oiling operation to prevent corrosion, and marking according to customer requirements. 2, leveling and milling: the use of anvil machine to level the original […]
The small length of the filler weld is 50mm. if the direction of the shortcoming on the base material of the steel pipe, the filler weld should be along the circumferential direction. Patch welding seam should be repaired and ground, so that the transition with the original appearance of the steel pipe steep. The height […]
Can say that related to the previous 10 years spiral steel tube industry, 14 years spiral steel tube industry is a dismal year, whether from the number of acquisitions, or from the price, a drop to low, the financial crisis erupted in 2008 than 14 years also strong, but also not fully involved in the […]
1、Cleaning Apply solvents and emulsions to clean the exterior of steel to remove oil, grease, dust, slick and similar organic substances, but it cannot remove rust, oxidation skin, welding powder, etc. on the exterior of steel, so it is only used as an auxiliary trick in anti-corrosion production. 2、Spraying (throwing) rust removal Spraying (throwing) rust […]
Judging from the surface, that is, in the appearance of the inspection. Usually users in the purchase of spiral steel pipe, due to the absence of professional testing equipment, at this time can only use the naked eye on the quality of spiral pipe appearance inspection, in order to roughly determine the quality of steel […]
Reasons for delayed delivery of spiral steel pipe manufacturers Customers who often purchase spiral steel pipes often encounter late construction deadlines. It is clear that the delivery time for signing the contract is ten days, but when the delivery date arrives, the spiral steel pipe manufacturers cannot deliver the goods. Why does this happen frequently? […]
Sino East Steel Group as a leading China steel products manufacturer specialized in production of high quality steel series products and located in Tianjin. The area of Sino East Steel Group is about 65,000 square meters with annual steel production capacity reaching to 500,000 MT. Its products’ ranges include steel pipes, tubes, steel sheet and coil, structural steel like steel profile and so on.
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