There are six main processing methods for seamless pipes (SMLS): 1. Forging method: Use a swage forging machine to stretch the end or part of the pipe to reduce the outer diameter. Commonly used swage...
Spiral welded pipe (ssaw): It is made by rlling low-carbon carbon structural steel or low aloy structural steel strip into a tube blank according to a certain helical angle (called forming angle), and...
Manufacturing principle and application of seamless pipe (SMLS): 1. The production principle of seamless pipe The production principle of the seamless pipe is to process the steel billet into a tubular...
Steel pipe products are indispensable and important products in today's society, and they are widely used in various industries. 1. Qualification of steel pipe products The qualification of steel...
Conveying pipelines: Welded steel pipes are widely used to transport oil, natural gas, gas, water and other fluids, especially in urban gas and water supply systems. Structural pipe: Welded steel pipes...
Spiral pipe (SSAW) factory attaches great importance to the loss of spiral pipe. From the steel plate to the finished product rate of the spiral pipe, the loss rate of the spiral pipe manufacturer during...
Spiral welded pipe (SSAW pipe) is a kind of spiral seam steel pipe made of strip steel coil as raw material, which is welded by automatic double-wire double-sided submerged arc welding process and extruded...
Hot-dip galvanized seamless steel pipe has good corrosion resistance and strength, and is widely used in industrial and civil fields. The following are its common application scenarios: 1. Construction...
1. Application of carbon steel tube in desalinated water treatment Desalinated water treatment is one of the essential processes in modern production, and various pipes have emerged as the times require....
1. Chemical composition Requirements are put forward for the content of harmful chemical elements As, Sn, Sb, Bi, Pb and gas N, H, O, etc. In order to improve the uniformity of the chemical composition...
1. Before molding work Raw materials that strip, wire, flux. We must go through rigorous physical and chemical testing before it is put. Strip head and tail docking, single or double wiresubmerged arc...
Stainless steels bond around a key material property: excellent corrosion resistance, attributable to high chromium content (> 10.5% by mass) and low carbon content (<1.2% by mass). Beyond the corrosion...
Submerged arc welding is an arc welding under flux layer combustion method. Welding arc between the wire and the weldment burning heat of the arc and arc welding wire ends near the base metal and solder...
Frequency welded pipe production process, affecting the quality of the elements have more than one pipe, the main raw materials, welding technology and roll count which is beginning to adjust. Key to...
High-pressure alloy pipe deformation strengthening is using the method of deformation of steel reinforcement. Also known as the strain hardening or work hardening. The strength of the material at the...
According to the technological requirements of different manufacturers, precision tubes length measurement systems with a variety of length measurement methods. There are the following: 1, The grating...
Spiral weld seam has the following several types: 1. Spiral strip end weld: steel head that spiral weld on steel or steel weld head and tail; 2. Two spiral butt weld: spiral cut is to link the two together...
Production process of hot rolled steel pipe: 1. Main production process (main inspection process) of hot rolled seamless steel pipe: pipe blank preparation and inspection > pipe blank heating >...
Spiral pipe factory should be done before the mechanical performance test and flattening test, and flaring test, and to achieve the standard requirements. Spiral steel pipe quality inspection method is...
Straight seam welded pipe surface quenching and tempering heat treatment is usually carried out by induction heating or flame heating. The main technical parameters are surface hardness, local hardness...