Epoxy powder anti-corrosion seamless steel pipe

 Epoxy powder anti-corrosion seamless steel pipe is a safe, reliable, and renewable environmentally friendly pipeline with good heat resistance, shear resistance, and corrosion resistance. It can maintain long-term processing performance in high temperature, high humidity, and corrosive environments. The use of this pipeline can avoid damage to the pipeline structure and save production costs.

　　The epoxy powder anti-corrosion seamless steel pipe adopts forming technology, and the surface of the shell is automatically sprayed with epoxy powder coating, making the surface uniform and firm, with excellent perforation resistance and corrosion resistance, effectively preventing pollutants from entering under harsh working conditions. In this environment, it can more effectively resist external corrosion resistance than external seamless cutting. Epoxy powder anti-corrosion.

　　The internal surface of epoxy powder anti-corrosion seamless steel pipe is smooth, with low fluid resistance, increased flow rate, no scaling, and is not easy to breed microorganisms. It can fully ensure flow rate and usage effect, and is energy-saving and environmentally friendly; In addition, the plastic coated steel pipe has excellent chemical corrosion resistance, water resistance, solubility resistance, protein resistance and high-frequency foam extinguishing agent corrosion, which can solve the corrosion of buried, acid, alkali and salt on fire pipelines, greatly extending the service life of fire pipelines, with a service life of more than 50 years.

　　In addition, the powder coating of plastic steel pipes does not contain organic solvents, which poses a health hazard to coating manufacturers and personnel; When powder coating is applied in a closed system, spray powder coating can be recycled, and the utilization rate of coating can be up to 98%, which can save a lot of human limited resources.

　　In addition, copper and stainless steel pipes are mainly used for fire water supply systems in foreign buildings. Due to the high cost of copper and stainless steel pipes, their application in engineering practice in China is relatively limited. At present, the fire water supply pipelines of domestic automatic sprinkler systems generally use galvanized steel pipes or galvanized seamless steel pipes. However, due to the poor anti-corrosion, scale prevention, and antibacterial properties of galvanized pipes, some fire pipeline production enterprises have started producing coated fire pipelines.

Maintenance methods for thick walled seamless steel pipes

 For the storage of thick walled seamless steel pipes, we also need to pay attention to some details.

　　We should choose to store in a clean and unobstructed area, away from factories and mines that produce harmful gases or dust. On the site, weeds and all debris should be removed, and thick walled steel pipes should be kept clean.

　　In the warehouse, materials that are corrosive to thick walled steel pipes such as acid, alkali, salt, cement, etc. should not be stacked together to prevent confusion and mutual corrosion. Different types of thick walled steel pipes should be stacked separately to ensure the suitability of the storage environment.

　　Large section steel, steel rails, steel plates, large diameter thick walled steel pipes, forgings, etc. can be stacked in the open air, while small and medium-sized section steel, wire rods, steel bars, medium diameter thick walled steel pipes, steel wires, and wire ropes can be stored in well ventilated material sheds, but must be covered with tarpaulins and cushions. For some small thick walled steel pipes, thin steel plates, steel strips, silicon steel sheets, small diameter or thin-walled thick walled steel pipes, various cold rolled and cold drawn thick walled steel pipes, and expensive and easily corrosive metal products, we can store them in storage.

　　At the same time, warehouses should be selected based on geographical conditions, generally using ordinary enclosed warehouses to ensure the suitability of the storage environment.

　　Finally, we need to pay attention to the principle of stacking, following the principle of first in, first out, and ensuring that under stable and safe stacking conditions, materials of different varieties should be stacked separately according to their variety and specifications to prevent confusion and mutual corrosion.

　　At the same time, we should pay attention to storing items that have corrosive effects on thick walled steel pipes near the stacking position. It is prohibited to stack them too high. Generally, the stacking height should not exceed 1.2m for manual operations, 1.5m for mechanical operations, and 2.5m for stacking width. A certain passage should be left between the stacks, with an inspection passage of generally 0.5m. The entry and exit passage depends on the size of the material and the transportation machinery, which is generally 1.5-2.0m. The height of the pile foundation also needs to be determined according to the specific situation.

Application of stainless steel socket flange

 Stainless steel socket flange generally has a strong sealing, tensile, bending, compressive and so on, according to a variety of properties, stainless steel flange can also be divided into blind flange, weld neck flange, socket flange, plate flange, threaded flange and so on, each kind of stainless steel flange has its own product parameters.

　　Stainless steel socket flanges: commonly used in pipes with PN less than 10.0Mpa and DN less than 40.

　　In addition, the installation process of ANSI B16.5 Calss 900 Stainless Steel Socket Flange must be professional, usually first joint positioning, installation of sealing ring, sealing sleeve inside and sleeve cone hole. Install the card sleeve and grease the contact part between the sleeve and the cone cone for easy installation. To install bolts and spherical nuts, grease should be applied to the spherical surface and threads for installation, etc. Finally, after installation, the ends of the two joints should be in close contact with the ribs of the sealing ring without any clearance.

What are the advantages of stamping stainless steel elbow

 1. Stamping stainless steel elbow is relatively efficient in production, and can also achieve full mechanization and automation. Of course, this is due to the relationship between stamping die and stamping equipment.

　　2. The production of stamping stainless steel elbow is relatively energy-saving, and no other heating equipment is required in the production.

　　3. It is widely used, ranging from mechanical equipment to engineering construction.

　　4. Stamped stainless steel elbow is stable in quality and not easy to be damaged.

　　Stamped stainless steel elbow should be welded differently according to different materials in the process of manufacturing, and this process can only be used under pressure.

How to improve the circulation of carbon steel tee?

 Phosphorus makes the eutectic point of pig iron move to the left, which can dissolve liquid pig iron and reduce the solubility of carbon in liquid pig iron. But in solid pig iron, the solubility of carbon in solid pig iron is limited, and with the increase of carbon moisture content and the decrease of temperature, it decreases. It does little harm to graphitization, decreases the strength and ductility of carbon steel tees, and improves their strength.A234 Wpb Carbon Steel Seamless Pipe Fitting Equal Tee also improves the fluidity and castability of carbon steel tees, but increases the shrinkage, casting defects and cracking tendency of carbon steel tee.

　　For steel castings, the quality performance of phosphorus is less than 3.0%. Phosphorus in nodular cast iron does not harm spheroidization, but it can melt in molten iron to reduce the eutectic carbon content of iron, carbon and manganese steel, so it is harmful to the original elements. Copper makes the mechanism high density, and decomposes and improves the uniform distribution of graphite, which can not only reduce the white tendency of pig iron, but also reduce the critical temperature of austenite change, decompose and enhance ferrite, which is beneficial to cross-section sensitivity.

How to store pipe fitting bend?

 1. Long-term storage of pipe fitting bend should be inspected regularly. The exposed surface should be kept clean, dirt removed, neatly stored in indoor ventilated and dry places, and stacking or open storage are strictly prohibited. Often keep pipe fitting bend dry and ventilated, keepers clean and tidy, according to the accurate storage method.

　　2. When installing, the pipe fitting bend can be directly installed on the pipeline in connection mode and installed in accordance with the position used. Generally, Seamless Buttwelding A234 Wp91 Pipe Fitting Bend can be installed in any position of the pipeline, but need to be easy to operate the inspection, pay attention to the cut-off pipe fitting bend media flow should be upward flow under the longitudinal valve disc, pipe fitting bend can only be installed horizontally. When installing the pipe fitting bend, we should pay attention to the sealing, prevent leakage and affect the normal operation of the pipeline.

　　3. When using pipe fitting bend ball valves, globe valves and gate valves, they should only be fully opened or closed, and not be allowed to adjust flow rate, so as to avoid erosion of sealing surface and accelerate wear. There is an inverted sealing device in the gate valve and the upper thread globe valve. When the handwheel is screwed to the top position, the leakage of the medium from the packing can be prevented.

Classification of Carbon Steel Elbows

 In addition to carbon, carbon steel elbows generally contain a small amount of silicon, manganese, sulphur and phosphorus. According to their uses, carbon steel can be divided into three categories: carbon structural steel, carbon tool steel and free-cutting structural steel. Carbon structural steel can also be divided into building structural steel and machine-made structural steel.

　　ANSI B16.9 Sch40 A234 Wpb Bw Pipe Fitting CS Elbow can be divided into open-hearth steel, converter steel and electric furnace steel according to smelting method; boiling steel, killed steel, semi-killed steel and special killed steel according to deoxidization method; carbon steel can be divided into low-carbon steel, medium-carbon steel and high-carbon steel according to carbon content; carbon steel can be divided into ordinary carbon steel, high-quality carbon steel and high-quality steel according to phosphorus and sulfur content.

　　Generally, the higher the carbon content in carbon steel, the higher the hardness and strength, but the lower the plasticity. Mainly refers to the mechanical properties depend on the carbon content in the steel, and generally do not add a large number of alloy elements in the steel, sometimes also known as plain carbon steel or carbon steel. Carbon steel, also known as carbon steel, refers to iron-carbon alloys with carbon content less than 2%.

Protective Measures for Weakness of Stainless Steel Tee

 1. Strictly control the quality of raw materials, starting with the material of pipes.

　　Strict on-site inspection of stainless steel pipe and Stainless Steel Tees. To ensure that the material meets the requirements. Considering both economy and function in material selection, under special operating conditions, austenitic stainless steel, duplex stainless steel, titanium and titanium alloys, glass fibre reinforced plastics with stronger corrosion resistance .

　　When choosing materials, the corrosion margin of pipe and High quality Seamless Stainless Steel Tee should be increased to meet the service life requirement of pipeline system.

　　2. Surface Coating Protection

　　At present, in view of the corrosion situation ofStainless Steel Tee pipeline under the environment, besides choosing the material with strong corrosion resistance, it can also improve the corrosion resistance by coating the surface of Stainless Steel Tee. Aiming at the problem of smooth surface of Stainless Steel Tee base material and poor adhesion of conventional stainless steel anti-corrosion coatings for different diameter pipes, an effective anti-corrosion coatings for stainless steel in marine environment, epoxy powder coatings, has been developed. The coating is a new type of coating which is completely solvent-free and sprayed in the form of powder.

Connection mode of stainless steel tee

 Stainless steel tees can be divided into equal diameter and reducing diameter. The size of the main pipe and nozzle end of equal diameter tees is the same, the size of the main pipe and nozzle of different diameter tees is the same, and the size of the nozzle of branch pipe is smaller than that of the main pipe.

　　Stainless steel tee has various connection methods, such as clamping, welding, grooving, ring pressure, etc. different connection methods can also be firmly connected to prevent pipeline looseness and water leakage.

　　Among them, the advantages of double clamping connection method are relatively prominent, the cost of pipe fittings is relatively low, there is no need to use open fire for installation, so as to protect the safety of the construction site, the connection of pipe fittings is firm and sealed, and the connection technology is mature and stable.

Application of stainless steel socket flange

 　Stainless steel socket flange generally has a strong sealing, tensile, bending, compressive and so on, according to a variety of properties, stainless steel flange can also be divided into blind flange, weld neck flange, socket flange, plate flange, threaded flange and so on, each kind of stainless steel flange has its own product parameters.

　　Stainless steel socket flanges: commonly used in pipes with PN less than 10.0Mpa and DN less than 40.

　　In addition, the installation process of ANSI B16.5 Calss 900 Stainless Steel Socket Flange must be professional, usually first joint positioning, installation of sealing ring, sealing sleeve inside and sleeve cone hole. Install the card sleeve and grease the contact part between the sleeve and the cone cone for easy installation. To install bolts and spherical nuts, grease should be applied to the spherical surface and threads for installation, etc. Finally, after installation, the ends of the two joints should be in close contact with the ribs of the sealing ring without any clearance.

What are the advantages of stamping stainless steel elbow

 1. Stamping stainless steel elbow is relatively efficient in production, and can also achieve full mechanization and automation. Of course, this is due to the relationship between stamping die and stamping equipment.

　　2. The production of stamping stainless steel elbow is relatively energy-saving, and no other heating equipment is required in the production.

　　3. It is widely used, ranging from mechanical equipment to engineering construction.

　　4. Stamped stainless steel elbow is stable in quality and not easy to be damaged.

　　Stamped stainless steel elbow should be welded differently according to different materials in the process of manufacturing, and this process can only be used under pressure.

Several key factors for judging the quality of steel shot

 Today we are going to share some factors for judging the steel shot.

　　Hope it can help in your daily work.

　　1. Visually inspect the number of hollow cores: If you can see several hollow shots or more at a glance, then the steel shot is normal or not up to standard.

　　2. Observe the number of special shapes: at a glance, you can see many conjoined particles or long, tailed ones. Such steel shots will have a negative impact on the quality of the metal surface.

　　3. Check the cleanliness of the surface of the steel shot: grab a hand, and the palm of the hand is still clean and free of dust or rust after rubbing it hard, indicating that the surface treatment of the steel shot is better.

　　4. Check whether there is any foreign matter in the steel shot, such as steel slag, sawdust, rust, stone, too large or too small pellets, etc.

　　The above points are the key factors affecting the consumption of steel shots. In view of the fact that most customers cannot carry out the chemical detection of trace elements, in order to facilitate the simple identification of the pros and cons of friends, we just made a summary of the macroscopic points. Please forgive me for impropriety.

What is Sandblasting

 Sandblasting is used for complex shapes, easy to remove by hand, low efficiency, poor on-site environment, and uneven rust removal. The general sand blasting machine has various types of sand blasting guns. As long as it is not a particularly small box, the gun can be put in and cleaned. The supporting product of the pressure vessel-the head is sandblasted to remove the scale on the surface of the workpiece. The diameter of the quartz sand is 1.5mm~3.5mm.

　　One kind of processing is to use water as a carrier to drive the emery to machine parts, which is a kind of sand blasting.

　　Both Shot Blasting and sand blasting can clean and decontaminate the workpiece. The purpose is to prepare for the next step, that is, to ensure the roughness requirements of the next process, and also for the consistency of the surface, the shot peening has on the workpiece. For reinforcement, sand blasting is not obvious. Generally, shot peening is a small steel ball, and sand blasting is quartz sand. According to different requirements, the number of points.

What material is the 20 # seamless steel pipe

 The 20 # seamless steel pipe is made from steel ingots or solid pipe blanks that are perforated into a capillary, and then hot rolled, cold rolled, or cold drawn.

　　The 20 # seamless steel pipe plays an important role in China's steel pipe industry. 20 # seamless steel pipe is a low-carbon steel pipe, which is generally divided into three types: low-carbon steel, medium carbon steel, and high carbon steel. Among them, 45 # steel is medium carbon steel, lower than 45 # is low carbon steel, and higher than 45 # is high carbon steel. If there are no special requirements for seamless steel pipes, 20 # seamless steel pipe is generally used.

　　The material of 20 # seamless steel pipe is 20 # steel, which has slightly higher strength than 15 # and is rarely quenched, without tempering brittleness. The parts with high cold deformation plasticity, generally used for bending, calendering, edge bending and hammer arch processing, good welding performance of arc welding welding and contact welding, small thickness during gas welding, strict shape requirements or complex shapes are prone to cracks. The cold drawn or normalized state has better machinability than the annealed state, and is generally used for manufacturing workpieces with low stress and high toughness requirements.

　　Seamless steel pipes are generally used: they are made of high-quality carbon bonded steel 16Mn, 5MnV, or 40Cr, 30CrMnSi, 45Mn2, 40MnB, etc., hot-rolled or cold-rolled. 10. Seamless pipes made of grade 20 low-carbon steel are mainly used for fluid transportation pipelines. Seamless pipes made of medium carbon steel such as 45 and 40Cr are used to manufacture mechanical parts, such as load-bearing parts for automobiles and tractors. Seamless steel pipes are generally used to ensure strength and flattening tests. Hot rolled steel pipes are delivered in hot rolled or heat treated condition; Cold rolling is delivered in a heat treated state.