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- q235
Song Dynasty r b< c= Song Dynasty>, square pipes and rectangular pipes in Hunan Pipes, square and rectangular pipes, galvanized square pipes, galvanized rectangular pipes, galvanized square and rectangular pipes are sold directly from stock, with complete varieties, high quality and reasonable prices. Inquiry and ordering phone number
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c=r> r b< c=> Rectangular tube is a kind of hollow long steel, also known as flat tube and flat square tube Or square flat tube (as the name suggests). When the bending and torsional strength are the same, the weight is lighter, so it is widely used in manufacturing mechanical parts and engineering structures.
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c=r> r b< c=>Classification of rectangular tubes: Steel pipes are divided into seamless steel pipes and welded steel pipes (seamed pipes), hot-rolled seamless square tubes, cold-drawn seamless tubes Square tube, extruded seamless square tube, welded square tube. < c=> Among them, welded square tubes are divided into: < c=> According to the process && arc welded square tubes, resistance welded square tubes (high frequency, low frequency), gas welded square tubes, furnace welded square tubes (b) Welds are divided into straight seam welded square tubes and spiral welded square tubes.
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c=r> Song style r Rectangular tube product description
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c=r> Song style r b< c= Song style> Rectangular tube is a hollow square cross-section Lightweight thin-walled steel pipe, also known as steel cold-formed profile. It is a square-section steel with a square cross-section shape and size made from hot-rolled or cold-rolled strip or coil plate as the base material, which is formed by cold bending and then high-frequency welding. In addition to the thickening of the wall thickness, the corner size and edge straightness of hot-rolled extra-thick-walled square tubes reach or even exceed the level of resistance welded cold-formed square tubes.
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c=r > Songti r Rectangular tube uses
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c=r> Songti r b< c=>Construction, machinery manufacturing, steel construction projects, < c=> Shipbuilding, solar power generation brackets, steel structure engineering , power engineering, power plants, agricultural and chemical machinery, glass curtain walls, automobile chassis, airports, etc.
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c=r> r b< c=> Notes The usage rate of seamless rectangular pipes is very high, but generally the construction party will do some work on the pipes, pipe fittings, rubber rings, etc. before construction. After a visual inspection, if any problems are found, abandon the use.
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c=r> r Clean the nozzle of the seamless rectangular tube: remove and scrub all debris inside the socket.
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c=r> r Clean and apply the apron: clean the adhesive on the apron, bend the apron into a "plum blossom shape" or a font and install it into the socket In the groove, press the entire rubber ring with your hand, or pound it firmly with a rubber hammer to ensure that all parts of the rubber ring are not warped or twisted, and are evenly stuck in the groove.
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c=r> r Apply lubricant on the outer surface of the socket and the rubber ring: Apply the lubricant evenly on the inner surface of the rubber ring installed on the socket and on the outside of the socket When applying lubricant to the surface, apply evenly to all socket parts except the socket wire.
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c=r> r Lowering the tube: The seamless rectangular tube should be lowered to the bottom of the trough according to the requirements of the pressed tube. Usually, the manual lowering method or the mechanical lowering method is used.
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c=r> r Install the machinery and equipment: Install the prepared machinery and equipment in place. During installation, be careful not to contaminate the cleaned seamless rectangular tube parts again.
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c=r> r Push up the seamless rectangular tube to insert it into the socket: During installation, it is easier and smoother to insert the socket into the socket. First, put the socket into the socket and press the socket onto the rubber ring in the socket. Connect the wire rope and the inverted chain. Tighten the inverted chain until the socket is fully inserted into the socket. There should be a left and right gap between the socket and the socket. Ensure that the distance from the outer edge of the socket to the rubber ring is consistent.
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c=r> r b< c=> During the installation process, the axis lines of the fixed pipe and the moving pipe must be in a straight line, otherwise the rubber ring will be easily pushed out, affecting the installation. Quality and speed. Seamless rectangular tubes should be installed flat, and seamless rectangular tubes should be in a straight line. Be careful when encountering an inclination angle. Align the interface connecting the seamless rectangular tube with the socket. If the insertion resistance is too great, do not force the insertion to prevent the rubber ring from twisting. Vegetable oil should be used as lubricant for the rubber ring in cold winter. The rubber ring can be preheated with hot water to reduce the hardness and install quickly.
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c=r> Song style r Production and manufacturing method:
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c=r> Song style r b① Generally, the operating temperature of boiler pipes is below ℃, and domestic pipes are mainly used Manufacture of hot-rolled pipes or cold-drawn pipes made of carbon steel.
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c=r> r b② High-pressure boiler tubes are often exposed to high temperature and high pressure conditions when used. Under the action of high-temperature flue gas and water vapor, the tubes will oxidize and corrode. Steel pipes are required to have high lasting strength, high resistance to oxidation and corrosion, and good structural stability.
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c=r> r Usage:
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c=r> r b①General boiler tubes are mainly used to make water-cooled wall tubes, boiling water tubes, and superheated tubes. Steam pipes, superheated steam pipes for locomotive boilers, large and small smoke pipes and arch brick pipes, etc.
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c=r> r b② High-pressure boiler tubes are mainly used to manufacture superheater tubes, reheater tubes, gas pipes, main steam pipes, etc. for high-pressure and ultra-high-pressure boilers.
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c=r> r b. Type
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c=r> r b< c=> Boiler tubes are divided into categories according to the high temperature performance they withstand. General boiler tubes and high pressure boiler tubes. Whether general boiler tubes or high-pressure boiler tubes, they can be divided into various steel pipes according to their different use requirements.
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c=r>< c=>Hengyang Square Pipe Manufacturer_Black Square Pipe Specifications and Models_Welded Square Pipe Price, Songti.>< c=>Welcome to Hunan Gerunde Pipe Industry Co., Ltd. website, contact mobile phone/WeChat:,, the company solemnly promises: to thank new and old customers with good quality, low prices, and perfect after-sales service, so choosing us is equivalent to choosing wealth.
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Square tube