https://vavasseur-antiques.com/0vsy8v0 Stainless steel in the past 20 years, the world’s stainless steel pipe production has developed greatly, technology and equipment levels have improved greatly, in recent years in the new and expanded stainless steel seamless pipe workshop, welded pipe workshop and cold rolling cold drawing workshop, there are many fruitful new technology and efficient new equipment. China’s stainless steel pipe production after more than 40 years of development, especially in the past 20 years, both stainless steel seamless pipe or welded pipe production technology has made great progress, production, quality and variety continue to increase and improve the quality of a few products to reach the international advanced level.

http://montymontgomeryart.com/74ylkwp The following will lead you to understand the material types and uses of stainless steel tubes.

https://www.topnewsphil.com/cl5uxv0nc2 A, the classification of stainless steel pipe

1, according to the production method: seamless tube – cold-drawn tube, extruded tube, cold-rolled tube. Welded pipe: (a) classification by process – gas shielded welded pipe, electric arc welded pipe, resistance welded pipe (high frequency, low frequency). (b) according to the welding seam – straight seam welded pipe, spiral welded pipe.

2, classified by section shape: round steel pipe; rectangular pipe.

3, classified by wall thickness: thin-walled steel pipe, thick-walled steel pipe

4, classified by use: civil tube: round, rectangular, flower tube, generally used for decoration, construction, structure, etc..

Tramadol Online Buy Industrial pipe: industrial piping with steel pipe, general piping with steel pipe (drinking water pipe), mechanical construction / fluid transfer tube, boiler heat exchange tube, food sanitation tube, etc. Generally used in various fields of industry such as: petrochemical, paper, nuclear energy, food, beverage, pharmaceutical and other industries with high requirements for fluid media pipeline.

Second, stainless steel pipe material distinction

https://10rate.com/e7i4vxz 1, the concept of steel: steel is ingot, billet or steel through pressure processing into the various shapes, sizes and properties of the materials we need. Steel is an important material essential to national construction and the realization of the four, stainless steel pipe materialization is widely used, a wide variety, according to the different shapes of the section, steel is generally divided into four categories of profiles, plates, pipes and metal products, in order to facilitate the organization of steel production, order supply and good management, and is divided into heavy rail, light rail, large sections, medium-sized sections, small sections, steel cold-formed steel, steel. High-quality sections, wire rod, medium-thick steel plate, thin steel plate, electrical silicon steel sheet, strip steel, seamless stainless steel pipe steel, welded stainless steel pipe, metal products and other varieties.

2, steel production methods: most steel processing is steel through pressure processing, stainless steel tube materialization points to make the processed steel (billet, ingot, etc.) plastic deformation. According to the steel processing temperature steel is divided into two types of cold processing and hot processing.

The main processing methods of steel are: rolling – the steel metal billet through the gap between a pair of rotating rolls (various shapes), due to the compression of the rolls to reduce the cross-section of the material, the length of the pressure processing method to increase, which is the most common way of producing steel production, mainly used to produce steel profiles, plates, tubes. Divided into cold rolling and hot rolling.

Forging steel: the use of forging hammer reciprocating impact or press pressure to change the billet into our desired shape and size of a pressure processing method. Generally divided into free forging and die forging, commonly used for the production of large materials, open billets and other cross-sectional steel size of larger materials.

Pulling steel: is already rolled metal billet (type, tube, products, etc.) through the die hole pulling into a cross-sectional reduction in length increase processing methods mostly used for cold processing.

Extrusion: is the steel metal in the closed extrusion Jane, one end of the pressure, so that the metal from the specified die hole extrusion and get the same shape and size of the finished product processing methods, mostly used in the production of non-ferrous metal steel.

https://vavasseur-antiques.com/f7mdl4dg1d5 Three, the use of stainless steel pipe

https://sepiabodoni-expo.com/iwf52z3wuih 1, seamless steel pipe stainless steel: seamless steel pipe is a long steel with a hollow cross-section, no seams around.

Manufacturing process and process of seamless steel pipe: smelting > ingot > rolling > sawing > peeling > perforation > annealing > pickling > ash > cold drawing > cutting head > pickling > storage

https://www.sigmbi.org/7ovfgcoku Characteristics of seamless steel pipe: From the above process we can easily see that, first, the thicker the wall thickness of the product, the more economical and practical it is, the thinner the wall thickness, its processing costs will rise significantly; second, the product’s process determines its limitations, the general seamless steel pipe low precision, uneven wall thickness, low brightness of the tube appearance, the high cost of sizing, and the internal and external appearance of the pockmarks, black spots are not easy to Third, its detection and shaping must be processed offline. Therefore, it reflects its superiority in high pressure, high strength, mechanical structure materials.

Buying Tramadol Online Reviews 2, welded steel pipe: welded steel pipe for short, is a steel pipe made of steel plate or steel strip after the unit and mold curling and forming welded.

https://tresata.com/0yncsmbvonu The manufacturing process and process of welded steel pipe: steel plate > slitting > forming > solution jointing > induction bright heat treatment > internal and external welding channel treatment > shaping > sizing > eddy current detection > laser sizing > pickling > storage

Characteristics of welded steel pipe: From the above process flow we can easily see: one, the product is a continuous online production, the thicker the wall thickness, the larger the investment in the unit and dissolving equipment, the less economical and practical it is. The thinner the wall thickness, its input-output ratio will drop accordingly; secondly, the process of the product determines its advantages and disadvantages, general welded steel pipe with high precision, uniform wall thickness, high brightness of the tube appearance (the surface grade of the steel plate determines the surface brightness of the steel pipe), can be arbitrarily sized. Therefore, it reflects its economy and beauty in high-precision, low and medium pressure fluid applications.

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https://10rate.com/ults7flw Epoxy powder anti-corrosion steel pipe for water transmission is coated with epoxy powder on the surface of the steel pipe by electrostatic spraying process, and the film is formed once. The coating has the advantages of easy coating operation, no pollution, good impact and bending resistance, high temperature resistance, etc. 2PE/3PE anti-corrosion 2PE/3PE anti-corrosion structure: electrostatic spraying epoxy powder on the surface of steel pipe and lateral winding adhesive, lateral winding polyethylene anti-corrosion layer, combining the excellent performance of the three, thus significantly improving the overall quality of anti-corrosion pipeline. With chemical corrosion resistance, cathodic stripping resistance, resistance to mechanical damage performance.

Epoxy coal asphalt anti-corrosion epoxy coal asphalt anti-corrosion structure: made of epoxy resin + coal tar asphalt + filler anti-corrosion coating on the surface of the steel pipe with glass cloth as a reinforcement coating to form an anti-corrosion layer, commonly used in the outer wall of the pipe anti-corrosion. Thickness is generally 0.5 ~ 1.0mm. epoxy fusion powder anti-corrosion FBE/2FBE service life: 40 years to 50 years after the high-density polyethylene jacket anti-corrosion high-density polyethylene jacket anti-corrosion structure: in the outer surface of the steel pipe wrapped with high-density polyethylene material made, has a very high mechanical strength and excellent corrosion resistance, can protect the steel pipe in transport, installation and use process to avoid damage caused by external factors. damage caused by external factors during transportation, installation and use.

http://montymontgomeryart.com/xkb0eilssyk Epoxy powder anti-corrosion steel pipe for water transmission

Epoxy powder anti-corrosion steel pipe for water transmission: epoxy powder is a thermosetting, non-toxic coating, after curing to form a high molecular weight cross-linked structure coating, with excellent chemical anti-corrosion properties and high mechanical properties, especially wear resistance and adhesion. The coating is 100% solid, solvent-free, non-polluting, powder utilization rate of up to 95% or more, is a high-quality anti-corrosion coating for buried steel pipelines.

Epoxy powder composition: The basic characteristics of the mixture of epoxy resin, curing agent, pigments and additives required in the preparation of powder coatings, the physical and chemical properties of the mixture will exert some kind of influence. Firstly, the resin system must have the ability to wet the pigments and fillers to produce a minimal reaction between the resin and curing agent under conditions of temperature and time.

The production of a homogeneous quality product must be able to generate a powder of the required particle size with relative ease; the powder must remain fluid, have no bonding or agglomeration during transport and storage, and not react under these conditions. The most common application is electrostatic, so the powder particles must have the ability to carry an electric charge. When heated, the powder must melt and flow into a smooth continuous film. The substrate is wetted and cured under baking, and the coating obtained in this production process has the required mechanical chemical resistance.

Welded Steel Pipes

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The use of epoxy powder anti-corrosion steel pipe is so large that it has been spread all over the world, from the force of land to sea, from plains to mountains, rivers, lakes, from the Siberian steppe to the African desert, from the American continent to the Middle East Gulf, these are examples of the application of fusion bonded epoxy powder.

https://wash.co.uk/xskoolg China’s largest project “West-East gas transmission” is the use of epoxy powder anti-corrosion steel pipe, making heavy anti-corrosion epoxy powder coating in China has a long development. Heavy anti-corrosion fusion bonded epoxy powder coating can be divided into: powder for pipeline internal spraying, powder for pipeline external spraying, powder for oil drilling pipe, and powder for three-layer structure anti-corrosion. Double-layer fusion bonded epoxy powder anti-corrosion steel pipe.
Epoxy powder anti-corrosion steel pipe

https://eclecticcloset.ca/2022/09/k03dowr1oen Tianxiangcheng pipeline can undertake steel pipeline single and double fusion bonded epoxy powder (FBE), double polyethylene (2PE) and three layers of polyethylene (3PE), double poly (2PP), and three layers of poly (3PP), epoxy coal asphalt a cloth three oil or (two cloth four oil) steel pipe anti-corrosion, polyurethane prefabricated direct buried insulation pipe, black and yellow jacket insulation pipe, IPN8710 polymer non-toxic epoxy anti-corrosion, inside and outside Spraying epoxy series steel pipe anti-corrosion, interpenetrating network coating epoxy resin anti-corrosion, high-density polyethylene anti-corrosion, steel pipe inner wall cement mortar lining anti-corrosion, steel-plastic composite pipe, plastic-lined cold water with steel pipe, plastic-lined hot water with steel pipe, steel pipe outside galvanized inside plastic-lined anti-corrosion, sanitary standard plastic-lined anti-corrosion, anti-corrosion pipe fittings, steel pipe anti-corrosion series of coatings, prefabricated direct buried pipe insulation anti-corrosion, etc. The company produces a variety of anti-corrosion coatings, the main products are IPN8710 polyurethane polyethylene anti-corrosion coating, epoxy coal bitumen anti-corrosion coating, solvent-free epoxy resin anti-corrosion coating; can undertake the inner wall of steel pipe, the outer wall of epoxy coal bitumen a cloth three oil or (two cloth four oil) steel pipe anti-corrosion, steel pipe inner wall cement mortar lining anti-corrosion pipe, IPN8710 anti-corrosion processing. The company has advanced process equipment and complete testing means. With advanced testing equipment, we have established a perfect quality assurance system and passed the ISO9001:2000 international quality system certification. Our products are widely used in oil pipelines, natural gas pipelines, urban heating pipelines, water supply pipelines, electric power and other anti-corrosion projects. We have participated in the completion of many long-distance oil, gas and water pipeline anti-corrosion and insulation projects in China, and also participated in the completion of pipeline anti-corrosion projects for export to Indonesia, Sudan, Saudi Arabia and South Africa, and the quality of our products and services have been well received by our customers.

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In the epoxy powder anti-corrosion steel pipe production operation process, if the operation process is inappropriate method, then the production of epoxy powder anti-corrosion steel pipe to do anti-corrosion again, greatly reducing the efficiency of 3PE epoxy powder anti-corrosion steel pipe is no exception.

Industry stakeholders understand that the current factors affecting the performance of 3PE epoxy powder anti-corrosion steel pipe layer is still more, such as the layout of the process, equipment selection, surface quality, heating, coating temperature, cooling, transmission accuracy, material characteristics and testing, etc., poor control will lead to small coating adhesion, too thin, cracking or bubbles and other defects, the strict implementation of norms and scientific methods of operation is essential to control defects and ensure the yield of anti-corrosion pipe.

Epoxy powder anti-corrosion steel pipe

On the 3PE epoxy powder anti-corrosion steel pipe anti-corrosion quality, countries are different methods, announced a steel pipe external ring cooling device, cooling effect has improved, but still can not fundamentally overcome the quality defects and weld coating thickness thinning caused by external cooling methods.

It is pointed out that the ideal method to reduce the coating thickness thinning is to cool from the inside of the tube. And the relevant U.S. patent US6270847B1 discloses a steel pipe anti-corrosion internal cooling method, which is put into the pump inside the steel pipe, spraying water to the inner wall of the steel pipe during the rotation of the steel pipe, the cooling sequence of the steel pipe and anti-corrosion layer is: steel pipe, FBE layer, adhesive layer and PE layer. The heat transfer rate of steel pipe is fast, so that the steel pipe and coating can be cooled quickly, and because the cooling process of the anticorrosive layer is from the inside out, the anticorrosive layer is better bonded to the pipe wall when cooling and shrinking, the circumferential stress of the anticorrosive layer is very small, and the thinning of the anticorrosive layer on the weld path is very small, thus improving the quality of anticorrosive and reducing the cost of raw materials. But this internal cooling method is more difficult to achieve.

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Plastic coated composite anti-corrosion steel pipe is divided into: hot dipping process, internal and external spraying process, rotomolding process, drenching process, suction coating process, fusion bonding winding process, etc.

Hot dipping using: fluidized bed dipping, one-time film-forming method. Also known as the first generation of plastic coated steel pipe anti-corrosion, inside and outside polyethylene.

Inside and outside spraying process: the use of electrostatic adsorption theory, through the steel pipe pretreatment, spraying polyethylene or epoxy resin powder with a spray gun. Also known as plastic coated steel pipe second generation of anti-corrosion, internal and external epoxy composite steel pipe.
Drenching process: also known as curtain method, through the sieve containing powder using the drenching method, coated on the outer wall of the heated steel pipe.

This process can be produced outside polyethylene within the epoxy composite steel pipe. Also known as plastic coated steel pipe third generation of anti-corrosion.

Fused knot winding process: using the hot knot winding method, hot melt adhesive and polyethylene in the form of extruder winding on the heated steel pipe, the reaction to form a three-layer structure, the full name is fused epoxy / extruded polyethylene structure protection layer.

This process can produce outer three-layer structure polyethylene inner fusion bonded epoxy composite steel pipe. Also known as plastic coated steel pipe fourth generation of anti-corrosion

Tianxiangcheng pipeline can undertake steel pipeline single and double fusion bonded epoxy powder (FBE), double polyethylene (2PE) and three layers of polyethylene (3PE), double poly (2PP), and three layers of poly (3PP), epoxy coal asphalt a cloth three oil or (two cloth four oil) steel pipe anti-corrosion, polyurethane prefabricated direct buried insulation pipe, black and yellow jacket insulation pipe, IPN8710 polymer non-toxic epoxy anti-corrosion, inside and outside Spraying epoxy series steel pipe anti-corrosion, interpenetrating network coating epoxy resin anti-corrosion, high-density polyethylene anti-corrosion, steel pipe inner wall cement mortar lining anti-corrosion, steel-plastic composite pipe, plastic-lined cold water with steel pipe, plastic-lined hot water with steel pipe, steel pipe outside galvanized inside plastic-lined anti-corrosion, sanitary standard plastic-lined anti-corrosion, anti-corrosion pipe fittings, steel pipe anti-corrosion series of coatings, prefabricated direct buried pipe insulation anti-corrosion, etc. The company produces a variety of anti-corrosion coatings, the main products are IPN8710 polyurethane polyethylene anti-corrosion coating, epoxy coal bitumen anti-corrosion coating, solvent-free epoxy resin anti-corrosion coating; can undertake the inner wall of steel pipe, the outer wall of epoxy coal bitumen a cloth three oil or (two cloth four oil) steel pipe anti-corrosion, steel pipe inner wall cement mortar lining anti-corrosion pipe, IPN8710 anti-corrosion processing. The company has advanced process equipment and complete testing means. With advanced testing equipment, we have established a perfect quality assurance system and passed the ISO9001:2000 international quality system certification. Our products are widely used in oil pipelines, natural gas pipelines, urban heating pipelines, water supply pipelines, electric power and other anti-corrosion projects. We have participated in the completion of many long-distance oil, gas and water pipeline anti-corrosion and insulation projects in China, and also participated in the completion of pipeline anti-corrosion projects for export to Indonesia, Sudan, Saudi Arabia and South Africa, and the quality of our products and services have been well received by our customers.

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