Passivation treatment operation of alloy pipePass designSantiago, Main machines and toolsPerformance parameters and application scope of I-beamAwka,X-ray or ultrasonic testing shall be carried out for repair welding of alloy pipe dead end welding of strip steel and circumferential seam. For the spiral welding of steel for the transportation of flammable general liquids, yibai%sx ray or ultrasonic testing shall be carried out. For the spiral welding of alloy pipes for the transportation of water, wastewater, gas, heating steam and other general liquids, X-ray or ultrasonic testing sampling inspection (%) shall be carried out.Some applications of I-beam:The utility model has the advantages that the axial force of the roll is small, the axial movement is small, the working inclined plane is not required, the pass occupies a small length of the roll body, and more passes can be matched under the condition of a certain length of the roll body.

→ I-beam can be processed into T-beam and honeycomb beam can be combined to form various section forms, which greatly meets the needs of engineering design and manufacturing.Straight seam welding is adopted for larger diameter welded pipe, and spiral welding is mostly adopted for large diameter welded pipe; According to the top appearance of seamless steel pipe, it is divided into annular welded pipe and special-shaped (square, pitch,SantiagoThere are several kinds of software for steel bar turning, it is divided into mining anti liquid transportation welded steel pipe, hot-dip galvanized welded steel pipe for bottom pressure liquid transportation, continuous conveyor idler electric welded steel pipe etc. it is arranged from small to large according to diameter * wall thickness according to the specification, model and dimension table in the current standard.Mixed Scabs are distributed periodically, and the situation after casting and rolling is significant through edge flame peeling crack inspection or billet scratch flame removal.Professional is king,The sodium cyanide passivation treatment of alloy pipe can be divided into four categories. Before passivation treatment, the surface of alloy pipe shall be clear of oil stains, pickled and passivated. Passivation treatment can be carried out only after the surface is cleaned, and the workpiece of alloy pipe products can be infiltrated into aqueous solution. The passivation treatment of the alloy tube in sodium cyanide transforms the surface layer into a very thin passivation treatment film, which determines that the color of the surface layer has no change before and after passivation treatment, and the reproducibility of the solution is good.At the same height, light I-beam has narrower legs, thinner waist and lighter weight than ordinary I-beam. No. - is large I-beam, and No. - is medium I-beam. Imported I-beam shall be marked with actual specifications,SantiagoHow much is the I-beam of 16, dimensions and relevant standards.The shape of I-beam is similar to that of H-beam. What is the difference between them?

When it is used for ground heating and hot spring transportation,SantiagoHow much is the price of welded pipe, it can meet the requirements of refrigeration and achieve the practical effect of less damage. It is applicable to water conservancy engineering, mining and other industries to meet the provisions of cold, cold and corrosion prevention. In addition, the chemical raw material transmission pipeline has a wide indoor space.Market trend,Key technical characteristics of alloy pipeFilling: welded pipe is welded by electric welding of hot-rolled strip steel, so its influence was not as high as that of seamless steel pipe.Alloy pipe is a kind of seamless steel pipe. Alloy pipe is divided into structural seamless pipe and high-pressure heat-resistant alloy pipe. It is mainly different from the production standard and industry of alloy pipe. Annealing and tempering of alloy pipe changes its mechanical properties. Meet the required processing conditions. Its performance is higher than that of ordinary seamless steel pipe, its utilization value is higher, the chemical composition of alloy pipe contains more Cr, low temperature resistance and corrosion resistance. Ordinary carbon seamless tubes do not contain alloy components or have few alloy components. Alloy tubes are widely used in petroleum, aerospace, chemical industry, electric power, boiler and other industries because the mechanical properties of alloy tubes change and are easy to adjust.Santiago,The utility model has the advantages that the axial force of the roll is small, the axial movement is small, and the working slope is not required,The general alloy pipe with improved performance is variable and has high application value. The alloy pipe contains more Cr and is heat resistant Low temperature resistance Corrosion resistance. There is no aluminum alloy in plain carbon seamless steel pipe, and the alloy pipe is used in crude oil Aerospace Chemical plant Power engineering heating furnace. Because the physical properties of alloy tubes are easy to change and adjust.→ compared with general section steel, it has the advantages of low cost, high precision and small residual stress. It does not need expensive welding materials and weld detection, and saves about % of the manufacturing cost of steel structure.