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2022-09-20 The European Union will establish the European Union ' s hydrogen-energy Bank for the promotion of industrial modelling development The European Commission will create a €3 billion ($3 billion) European Hydrogen Bank to help move the hydrogen economy from niche to scale, Kallanish reports. Using resources from the Innovation Fund, the bank will help guarantee the purchase of hydrogen and build the future market for it, EC`s President Ursula von der Leyen said on Wednesday. [We must create a market maker for hydrogen, in order to bridge the investment gap and connect future supply and demand," she adds, noting hydrogen can be a [game changer" for Europe. Trade body Hydrogen Europe said the bank will be a [good starting point," but that the association would work to leverage that amount to ensure the hydrogen economy indeed moves from niche to scale. It sees the bank as the [right instrument" to bring production and demand into a right balance.

2022-09-19 Global crude steel production fell 6.5% year-on-year in July On August 23, the World Steel Association (WSA) released global crude steel production data for July 2022. In July, the crude steel output of the 64 countries and regions included in the statistics of the World Steel Association was 149.3 million tons, a year-on-year decrease of 6.5%. Steel prices have fluctuated frequently recently. In July, African crude steel output was 1.2 million tons, down 5.4% year-on-year; Asia and Oceania crude steel output was 110.1 million tons, down 5.2% year-on-year; EU (27 countries) crude steel output was 11.7 million tons, down 6.7% year-on-year ; Crude steel output of other European countries was 3.5 million tons, down 16.5% year-on-year; Middle East crude steel output was 3.2 million tons, up 24.2% year-on-year; North American crude steel output was 9.6 million tons, down 5.4% year-on-year; Russia and other CIS The output of crude steel in South America and Ukraine was 6.4 million tons, a year-on-year decrease of 29.1%; the crude steel output in South America was 3.6 million tons, a year-on-year decrease of 7.8%. Judging from the top 10 steel producing countries, in July, China's crude steel output was 81.4 million tons, down 6.4% year-on-year; India's crude steel output was 10.1 million tons, up 3.2% year-on-year; Japan's crude steel output was 7.3 million tons, year-on-year Down 8.5%; U.S. crude steel production was 7 million tons, down 6.4% year-on-year; South Korea`s crude steel production was 6.1 million tons, down 0.6% year-on-year; Russia`s estimated crude steel production was 5.5 million tons, down 13.2% year-on-year; Steel production was 3 million tons, down 2.0% year-on-year; Brazil`s crude steel production was 2.8 million tons, down 8.7% year-on-year; Turkey`s crude steel production was 2.7 million tons, down 20.7% year-on

2022-09-05 European Steel Association slightly raises 2022 steel demand forecast Eurofer has slightly raised its apparent steel demand forecast for 2022, but still expects consumption to fall year-on-year and expects the market to recover in 2023. Steel consumption in the EU will continue to decline in the second half of 2022 as supply chain disruptions, rising energy prices, inflation and the Russian-Ukrainian conflict continue to affect the European steel industry. The European Steel Association expects apparent EU steel consumption to fall by 1.7% year-on-year in 2022, compared with a 1.9% decline forecast in early May. EU steel demand is forecast to grow by 5.6% year-on-year in 2023, up from a previous forecast of 5.1%. The European Steel Association said in its third-quarter report that the overall evolution of steel demand still faces a high degree of uncertainty, which could continue to weaken demand in the steel industry. This high level of uncertainty will continue until at least the first quarter of 2023, depending on the development of the Russian-Ukrainian conflict and its impact on global supply chains. The association expects output in the EU's downstream steel sector to increase in 2022, but at a slower pace compared to its previous outlook, with its latest forecast for this year of 1.1% year-on-year growth, down from a previous forecast of 2% growth in 2023 The output of downstream users is expected to grow by 2.2% year-on-year. The EU's auto industry and home appliances will be the hardest hit. According to data from the European Iron and Steel Association, in 2022, the output of home appliances in the EU will fall by 2.7% year-on-year, and the output of the automotive industry will drop b

2022-08-15 Features of Pressure Vessel Plates Pressure vessel steel plates refer to carbon steel and low alloy steel plates used to manufacture pressure vessel shells. It includes carbon steel, carbon-manganese steel, micro-alloyed steel, low-alloyed high-strength steel, and low-temperature steel. The working temperature is generally -20°C to 500°C, and individual can reach 560°C. Among them, it mainly refers to 16MnR steel (16 manganese capacity low alloy steel, a type of steel), which is used to manufacture pressure vessels of ASME specifications. Pressure vessel steel plate is a special material related to the national economy and people's livelihood, and is a short-term product in the metallurgical industry. In recent years, my country's steel plates for boilers and pressure vessels have not only achieved a certain scale in terms of output, but also some enterprises have gradually approached the level of steel plates used in boilers and pressure vessels in developed countries in terms of physical quality. So far, my country has formed a production system of steel plates for boilers and pressure vessels with a certain production scale, increasing specifications and quality. Pressure vessel The equipment with specific process function and under certain pressure in industrial production is called pressure vessel. Storage and transportation vessels, reaction vessels, heat exchange vessels and separation vessels are all pressure vessels. In order to distinguish it from general vessels (atmospheric pressure vessels), only vessels that meet the following three conditions at the same time are called pressure vessels: (1) The maximum working pressure (Pw) (Note 1) is greate

2022-08-09 Types and uses of hot rolled steel sheets The hot-rolled steel plate is made of continuous casting slab or blooming slab as raw material, which is heated in a walking furnace, descaled by high-pressure water, and then enters the rough rolling mill. Rolling, after the final rolling, it goes through laminar cooling (computer-controlled cooling rate) and coiling by a coiler to become a straight coil. The head and tail of the straight hair curler are often tongue-shaped and fish-tail-shaped, with poor thickness and width accuracy, and the edges often have defects such as wave shape, folded edge, and tower shape. The coil weight is heavier, and the inner diameter of the steel coil is 760mm. Type of use 1. Structural steel Mainly used in the production of steel structure parts, bridges, ships and vehicles. 2. Weathering steel Add special elements (P, Cu, C, etc.), with good corrosion resistance and atmospheric corrosion resistance, used in the production of containers, special vehicles, and also used in building structures. 3. Steel for automobile structure High-strength steel plate with good stamping performance and welding performance, used in the production of automobile FRAME, WHEEL, etc. 4. Hot-rolled special steel Carbon steel, alloy steel and tool steel for general mechanical structures are used in the production

2022-08-03 Features of Silicon Steel Silicon steel refers to silicon alloy steel with silicon content of 1.0 to 4.5% and carbon content of less than 0.08%, called silicon steel. It has the characteristics of high permeability, low coercivity, and large resistivity, so hysteresis loss and eddy current loss are small. Mainly used as magnetic materials in motors, transformers, electrical appliances and electrical instruments. In order to meet the needs of punching and shearing when manufacturing electrical appliances, a certain degree of plasticity is also required. In order to improve the magnetic induction performance and reduce the hysteresis loss, it is required that the content of harmful impurities is as low as possible, and the plate shape is required to be flat and the surface quality is good. Silicon steel takes iron core loss (referred to as iron loss) and magnetic induction (referred to as magnetic induction) as the guaranteed magnetic value of the product. The low loss of silicon steel can save a lot of electricity, prolong the working time of motors and transformers and simplify the cooling system. The power loss caused by the loss of silicon steel accounts for 2.5% to 4.5% of the annual power generation, of which the iron loss of the transformer accounts for about 50%, the 1-100kW small motor accounts for about 30%, and the fluorescent lamp ballast accounts for about 15%. The magnetic induction of silicon steel is high, and the excitation current of the iron core is reduced, which also saves electricity. The high magnetic induction of silicon steel can make the maximum magnetic induction (Bm) of the design high, the core volume is small, and the weight is light, saving silicon steel, wires, insulating materials and structural materials, etc., which not only reduces the loss and manufacturing c

2022-08-02 Process flow of galvanized steel sheet The galvanizing production line is a complete set of equipment for hot-dipping a layer of zinc alloy coating on both sides of the steel coil. It is composed of finishing machine, tension leveling machine, oiling machine, shearing machine, winding machine and other equipment. The main process flow of galvanized sheet Coiling → double unwinding → cutting head and tail cutting → welding → alkaline cleaning → primary brushing → electrolytic cleaning → secondary brushing → hot water rinsing → hot air drying → inlet looper → continuous annealing → hot-dip galvanizing (ceramic zinc pot)→air knife blowing (introduced)→→air cooling after plating→water quenching→levelling machine (reserved)→stretching leveler→passivation treatment (reserved for fingerprint resistance)→export looper→oiling →cutting→coiling→unrolling→weighing→packing The function of each section of the galvanizing line Cleaning section: Remove cold rolling lubricants and iron powder from the surface of the strip. Cleaning before the entry looper facilitates stable tracking of the strip within the entry looper while avoiding dents and scratches. Entrance looper section: Provides a vertical looper of effective length when the welding stops at the entrance, enabling continuous production of the production line. Furnace section: vertical continuous annealing furnace, reaching the specified annealing cycle.

2022-08-02 The production process of 1250 hot rolled coil or sheet The production process of 1250 hot rolled plate: Heating → descaling → rough rolling → hot coiling → flying shears → descaling → finishing rolling → laminar cooling → curling → packing and storage This production line can be divided into four stages: heating, rough rolling, finishing rolling and coiling. first stage heating The raw material for the hot coil plant is directly transported here from the slabs produced by the steel mill. Before entering the furnace, the advanced automatic control system is used to match the slabs, weigh and number them. Heating furnace: full hydraulic walking beam heating furnace with upper and lower heating. The external burner type regenerative combustion system and the segmented side-by-side reversing system are adopted, which are the key systems of the regenerative heating furnace. Compared with the push-steel heating furnace in the medium plate factory: due to the gap between the billets, the four sides are heated evenly, the heating speed is fast, and the quality is good, which effectively reduces the oxidation and burning loss of the billet, which is conducive to the control of the depth of the decarburized layer; And the operation is flexible, can move forward, backward or step, the production capacity is large, the furnace is not limited by the thickness and shape of the billet, and does not arch the furnace; it is convenient for the production coordination of the hot charging of th

2022-08-02 Production process of seamless steel pipe The production method of seamless steel pipe is roughly divided into the cross-rolling method (Mennesmann method) and the extrusion method. The cross-rolling method (Mennesmann method) is to first perforate the tube blank with a cross-roller, and then extend it with a rolling mill. This method has a fast production speed, but requires higher machinability of the tube blank, and is mainly suitable for the production of carbon steel and low-alloy steel tubes. The extrusion method is to perforate the tube blank or ingot with a piercing machine, and then extrude it into a steel pipe with an extruder. This method is less efficient than the skew rolling method and is suitable for the production of high-strength alloy steel pipes. Both the skew rolling method and the extrusion method must first heat the tube blank or ingot, and the produced steel tube is called a hot-rolled tube. Steel pipes produced by hot working methods can sometimes be cold worked as needed. There are two methods of cold working: one is the cold drawing method, which is to draw the steel pipe through a drawing die to gradually thin and elongate the steel pipe; the other method is the cold rolling method, which is invented by the Mennesmann brothers. The method of hot rolling mill applied in cold working. The cold working of seamless steel pipe can improve the dimensional accuracy and processing finish of the steel pipe, and improve the mechanical properties of the material. Production process of seamless steel pipe (hot-rolled steel pipe) The seamlessness of the steel pipe is mainly completed by tension reduction, and the tension reduction process is a continuous

2022-08-02 Straight seam welded pipe standard 1. The specification of seam submerged arc welded thick-walled welded pipe for general low-pressure fluid transportation (SY5037-2000) is made of hot-rolled steel coil as the tube blank, which is often spirally formed at high temperature, and is made by double-sided automatic submerged arc welding or single-sided welding. It is used for submerged arc welded steel pipes for general low pressure fluid transportation such as water, gas, air and steam. 2. The specification of high-frequency thick-walled welded pipe for general low-pressure fluid transportation (SY5039-83) is made of hot-rolled steel coil as the tube blank, spirally formed at constant temperature, and welded by high-frequency lap welding for general low-pressure fluid transportation. Frequency welded steel pipe. 3. Thick-walled welded pipe specifications for piles (SY5040-2000) are made of hot-rolled steel strip coils as pipe blanks, often formed by warm spirals, and made of double-sided submerged arc welding or high-frequency welding. They are used for civil construction structures, docks, bridges Steel pipes for foundation piles. 4. Welded pipes for low-pressure fluid transportation (GB/T3092-1993) are also called general welded pipes, commonly known as black pipes. It is a professional production welded pipe for conveying general lower pressure fluids such as water, gas, air, oil and heating steam and other purposes. The wall thickness of the steel pipe can be divided into ordinary steel pipe and thickened steel pipe; The specification of the steel pipe is expressed by the nominal diameter (mm), which is an approximation of the inner diameter. It is customary to express in inches, such as 11/2 and so on. In addition to being directl

2022-08-02 Production steps of spiral steel pipe Do you know the production steps of spiral steel pipe? Below, I will introduce it to you in detail. (1) Various inspections of raw materials are carried out. Raw materials generally refer to strip coils, welding wires, fluxes, etc. Strict physical and chemical inspections should be carried out before investing to ensure quality. (2) The head and tail of the strip are butted by single-wire or double-wire submerged arc welding, and automatic submerged arc welding is used for repair welding after rolling into a steel pipe. (3) Process treatment. Before forming, the required steel is straightened, sheared, planed, surface cleaned, transported and bent. (4) The electric voltmeter is used to control the pressure of the depressing cylinders on both sides of the conveyor to ensure the smooth transportation of the strip steel. (5) Adopt external control or internal control roll forming. (6) The welding seam gap control device is adopted to ensure that the welding seam gap meets the welding requirements, and the pipe diameter, the amount of misalignment and the welding seam gap are strictly controlled. (7) The American Lincoln welding machine uses the American Lincoln welding machine to carry out single-wire or double-wire submerged arc welding to obtain stable welding specifications. (8) Th

2022-08-01 Characteristics of Alloy Steel Plate or Sheet With the development of science, technology and industry, higher requirements are put forward for materials, such as higher strength, resistance to high temperature, high pressure, low temperature, corrosion resistance, wear and other special physical and chemical properties. To meet the requirements, alloy steel plates appeared. The steel plate is flat, rectangular and can be directly rolled or cut from wide steel strips. The steel plate is divided according to the thickness, the thin steel plate is less than 4 mm (the thinnest is 0.2 mm), the thick steel plate is 4-60 mm, and the extra-thick steel plate is 60-115 mm. Steel sheets are divided into hot-rolled and cold-rolled according to rolling. The width of the thin plate is 500~1500 mm; the width of the thick sheet is 600~3000 mm. Sheets are classified according to steel types, including ordinary steel, high-quality steel, alloy steel, spring steel, stainless steel, tool steel, heat-resistant steel, bearing steel, silicon steel and industrial pure iron sheet, etc.; Enamel plate, bulletproof plate, etc.; According to the surface coating, there are galvanized sheet, tin-plated sheet, lead-plated sheet, plastic composite steel plate, etc. The steel grade of the thick steel plate is generally the same as that of the thin steel plate. In terms of products, in addition to bridge steel plates, boiler steel plates, automobile steel plates, pressure vessel steel plates, and multi-layer high-pressure vessel steel plates, which are pure thick plates, some varieties of steel plates such as automobile girder steel plates (2.5-10 mm thick), patterned steel plates, etc. Steel plates (2.5-