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Three kinds of materials for pipeline fire blocking
Three kinds of materials for pipeline fire blocking Fire blocking material is specially used to block various openings and cable bridges formed by various penetrations in buildings through walls, floors, etc., which has fire prevention and heat insulation functions and is easy to replace. Accordi...Read more -
Key points of new virus affecting steel industry
The steel industry is a basic industry with a large economic scale, long industrial chain, and many related industries. Even without this epidemic, operations will be affected by multiple factors such as macroeconomics, financial markets, raw materials, and terminal demand. The complexity of the ...Read more -
The necessity of pickling seamless pipes
What is pickling: The method of removing scale and rust on the surface of steel with an acid solution is called pickling. Pickling acids include sulfuric acid, hydrochloric acid, phosphoric acid and mixed acids. The pickling process is to remove the oxide scale on the surface, and then lubricate ...Read more -
Why doesn’t stainless steel composite pipe rust？
The stainless steel composite pipe used in our lives is relatively common, and its role in our lives is becoming more and more important. It combines the advantages of strong hardness of iron pipes, not easy to bend, strong impact resistance, strong wear resistance and corrosion resistance of sta...Read more -
Create a New Business Card of “Wisdom Made in China”
The “super fishing grounds” of China’s 12-stage typhoon have been delivered to Norwegian users. The “super fishing grounds” installed more than 20000 various types of sensors, integrated into the biology, engineering, electrical, computer and other multidisciplinary...Read more -
Carbon Steel-Heat Treatment
The purpose of heat treating carbon steel is to change the mechanical properties of steel, usually ductility, hardness, yield strength, or impact resistance. Note that the electrical and thermal conductivity are only slightly altered. As with most strengthening techniques for steel, Young’...Read more -
Hot dip process
Hot dip process Workpiece → degreasing → washing → pickling → washing → dip test help plated solvent → drying Preheat galvanized → finishing → hot dip → cooling → rinsing → drying →inspection Hot-dip galvanizing layer formation process Hot-dip galvanizing layer formation process is a proce...Read more -
High strength structural steel plate of cold forming performance
Inadequacies of high-strength steel structure is thermoformed and post-weld heat treatment temperature determination are limited material softening problem. Therefore, in practical applications in order to avoid affecting the thermoforming process on the mechanical properties of the material, the...Read more -
Gas pipeline internal coating
Gas pipeline coating technology is a certain thickness of the pipe wall spray epoxy, not only avoid acidic gases in the transport pipe wall subject to corrosion, but also to prevent inclusion of other contaminants in the gas stream impurities deposited on the etched surface of the pipe wall side ...Read more -
Expanding machine
Expanding machine is straight seam welded metal shaping apparatus, it is bulged cone head, in the steel pipe dilatation, to eliminate the molding pressure and welded steel pipe stress, and to ensure that the full-length straight seam welded steel pipe diameter segment really the same size, equipm...Read more -
Hot extrusion technology
Hot extrusion technology is a metal above the recrystallization temperature for extrusion, the billets extruded from a die orifice, to obtain the shape of the die hole metal forming method of the cross-sectional pipe. In the hot extrusion process (from the tube blank to the blank pipe), the tube ...Read more -
Difference between pipeline welding and TIG welding backing
Full TIG welding backing makes no difference in the process, the whole arc for thin-walled small diameter pipes (DN50 general and below, the wall thickness of 4 mm) or less, the purpose of guarantee good weld root quality appearance imaging. When a large diameter, thick wall thickness should be u...Read more