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and the situation after casting and rolling is significant through edge flame peeling crack inspection or billet scratch flame removal.I-beam has the dual properties of high hardness and toughness materials. Compared with other engineering wear-resistant materials in China, such as various alloy steel plates, cast wear-resistant plates, cast stones, rubber, polyurethane, etc., it has irreplaceable comprehensive excellent properties.Zelaya,ZelayaAlloy pipe quotation,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, etc.); according to different materials and main purposes, 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.Nitriding: also known as nitriding, it is the process of penetrating nitrogen atoms into the surface layer of steel. At present, gas nitriding is widely used in the production of alloy steel pipe.Parung,The shape of I-beam is similar to that of H-beam. What is the difference between them?Passivation treatment operation of alloy pipeDue to the unique performance of I-beam, the waist width of No. I-beam is cm. The types of I-beam include hot-rolled ordinary I-beam Light I-beam and wide parallel leg I-beam (H-beam). The waist width of hot-rolled ordinary I-beam in China is ~ mm, expressed as No. ~ No. and the inclination of inner side wall of leg is : The pass system of rolled I-beam includes direct rolling pass system, cross rolling pass system and mixed pass system. In addition, I-beam can also adopt special rolling method.Welded steel pipe, also known as welded pipe, is a seamless steel pipe made of thick steel plate or hot-rolled strip by electric welding after coiling and forming,ZelayaWhere can I buy steel bars, generally with a fixed length of m. Welded steel pipe has the advantages of simple production and processing process, high production efficiency, many types, specifications and models, and less investment in machinery and equipment projects, but the general compressive strength is less than that of seamless pipe.Application characteristics of I-beamQuality risk,The shape of I-beam is similar to that of H-beam. What is the difference between them?The high-temperature passivation treatment of alloy pipe is to obtain the passivation treatment film by heating in the heat treatment equipment. Before passivation treatment, the surface layer of parts must be removed to remove waste. At a higher temperature, the passivation treatment film can be obtained according to the transformation temperature and time. The hue of passivation treatment film can refer to the annealing color of alloy pipe, and the main parameters of ambient temperature and time of heat treatment process can be selected. Cross rolling pass system. This pass system refers to that the two open legs of the I-beam pass are not on the same side of the waist at the same time, and the waist has an included angle with the horizontal axis.

Difference and application description between H-beam and I-beamDirect labor,Due to the relatively high and narrow section size of ordinary I-beam and light I-beam, the moment of inertia of the two main axes of the section is quite different, which makes it very limited in the scope of application. The use of I-beam shall be selected according to the requirements of design drawings.First, the two hole beam end space on the pier top shall be used to set the cast-in-situ transverse cantilever cantilever beam, on which the prefabricated micro bending plate shall be installed. The second is to erect prefabricated sidewalk beams in the cantilever part of the cantilever beam. The sidewalk beams of bridge openings on both sides are longer than the main beam, one end is supported on the cantilever beam of side pier, and the other end is supported on the special buttress on the embankment, which is to avoid widening the abutment.Greatly reduce the environmental pollution caused by abrasion,ZelayaQ345B longitudinal welded pipe factory, damage and blanking,The shape of I-beam is similar to that of H-beam. What is the difference between them?H-shaped steel groove is deep and thick, and can withstand forces in two directions.H-beam is a widely used profile in steel structure buildings. It is different from I-beam. The first is the flange and the second is that the inner surface of the flange has no inclination, and the upper and lower surfaces are parallel. The section characteristics of H-beam are obviously better than those of traditional I-beam, channel steel and angle steel.