Generally, the common ones are high temperature passivation or sodium cyanide passivation.Plan scheme : Martensitic chromium alloy pipe and chromium alloy pipe with Cr composition exceeding %, without high carbon steel and high chromium alloy pipe. The aqueous solution contains % sodium cyanide % ~ % (volume ratio), the solution temperature is ~ ℃, and the solution time is min.Pirot,Seamless pipe has a high position in steel pipe, and there are many large factors. The main usage has accounted for more than % which is applicable to all walks of life. Seamless pipe factories in China are widely produced. At present,PirotAlloy pipe GH5188, the number of factories in China is also increasing every year, which is determined by the nature and production conditions of seamless pipe. The common production processes and processes are more complex.Performance parameters and application scope of I-beamKolomyya,When selecting I-beam in structural design, reasonable I-beam shall be selected according to its mechanical properties, chemical properties, weldability and structural size. I-beam is mainly divided into ordinary I-beam, light I-beam and wide flange I-beam. According to the height ratio of flange to web, it is divided into wide, medium and narrow flange I-beams. Remove defective pipes within the allowable length. Mixed pass system. According to the characteristics of rolling mills and products, in order to give full play to the advantages of their respective systems and overcome their disadvantages, mixed pass system is often adopted, that is, the combination of more than two systems. For example, straight leg cross rolling pass system is adopted for finished hole and front hole of finished product, and bent leg cross rolling system is adopted for other passes; or direct rolling system is adopted for rough rolling hole and straight rolling system is adopted for the last ~ finish rolling holes Leg oblique tie hole,Pirot12Cr1MoVG thick wall alloy pipe,PirotAlloy pipe gh1016, etc.
→ compared with the concrete structure, the I-steel structure can increase the service area by %, reduce the self weight of the structure by % - %, gas, air and steam, which is made of hot-rolled steel strip coil as pipe blank, the more serious the disadvantages.ranking,I-beam is mainly used in building structure, mechanical equipment and vehicle manufacturing.Difference and application description between H-beam and I-beamHeating surface pipes, economizers, superheaters, reheaters, pipes for petrochemical industry, etc. for high-pressure boilers (working pressure is generally above MPa and working temperature is between ℃ ~ ℃)
Due to the unique performance of I-beam, I-beam has successfully solved the problem of serious equipment wear in many industries.agent,Aiming at the connective tissue and texture produced in stainless steel plate Position and other crystal defects are generally removed by heat treatment processes such as quenching or quenching. The effect of quenching is to optimize the crystal, eliminate structural defects, reduce strength, improve plastic deformation, and also conducive to cold drawing. In the production and manufacture of cold drawn alloy pipe, quenching machinery and equipment cannot be lacked. Therefore, reduce the product cost and reduce the quenching process, it will eventually lead to bad harm to the product quality. According to the diameter of the pipe, the pipe with small diameter can only be welded on one side and the technician can drill into the pipe to weld on both sides. Single side welding requires the welders technology, which can be formed by welding two on one side. Through the steel ball test, it can ensure that the cross-sectional area passing capacity and weld formation meet the design requirements.Passivation treatment operation of alloy pipePirot,What is nitriding of alloy pipeMain uses: as a finished material, flat steel can be used to make hoop iron, tools and mechanical parts, and used as building frame structural parts and escalators in buildings. Flat steel is divided into two types according to its shape: plane spring flat steel and single-sided double groove spring flat steel. Hot rolled spring flat steel is mainly used to manufacture leaf springs for automobiles, tractors railway transportation and other machinery.I-beam, also known as steel beam, is a long strip of steel with I-shaped section. I-beam is divided into ordinary I-beam and light I-beam. It is a section steel with I-type section shape.