Since this year, the demand for iron and steel has not increased as expected due to the price adjustment among the major steel enterprises. On the contrary, the lack of destocking and the increase of output value led to the continuous decline of steel sales price, which finally made the steel factory price and the market price difficult to "hang upside down". Many insiders pointed out that the current inventory of the entire steel industry is still very high, and the need for hard release will enable the entire profession to continue to roam in the "winter". The insiders pointed out that the downward trend of the price of Wuxi seamless steel pipe is directly related to the high steel inventory as usual, while the effect of destocking is not significant, which leads to the low peak season of the steel industry.
2022-10-24
The price of seamless steel pipe products may be limited
The recent sharp rise of spot steel prices in the domestic steel market is often driven by the market's more obvious expectation of rise, so this expectation will continue to rise after the year. Because infrastructure projects are gradually launched, demand will rise synchronously, and such an expectation will continue to revolve around the first quarter. Therefore, the steel prices in the whole quarter will maintain a relatively strong pattern.
2022-10-24
Polytetrafluoroethylene (PTFE) is widely used as a new inorganic non-metallic material
With the progress of social civilization and the development of science and technology, material chemistry has also developed rapidly. New inorganic materials are increasingly used in daily life. Polytetrafluoroethylene (PTFE), as a new inorganic non-metallic material, is widely used.
2022-10-24
Test method for steel lined tetrafluoroethylene pipeline
First, the product specifications and dimensions shall be inspected according to the standard for PTFE lined pipes, and then the steel lined PTFE lining layer shall be tested: the pipes and pipe fittings shall be subjected to a hydrostatic test at 1.5 times the design pressure, and the PTFE lining layer shall be 100% inspected for integrity after the hydrostatic test. The leakage point inspection method shall be electric spark test, and the appearance of the coating shall be inspected for corrosion protection. The coating thickness shall be uniform. The inspection and test shall be carried out at the service temperature of - 20~200 ℃, service pressure ≤ 2.5Mpa, allowable negative pressure DN ≤ 250mm is -0.09Mpa, and DN>250mm is -0.08Mpa.
2022-10-24
New Standard for Steel Lined PTFE Steel Pipe and Steel Lined PTFE Pipe Fittings
The new standard HG/T20538-2016 for steel lined tetrafluorocarbon steel pipe and steel lined tetrafluorocarbon pipe fittings is a chemical industry standard. Loose lined tetrafluorocarbon pipe or steel lined tetrafluorocarbon pipe is a tetrafluorocarbon lining method that directly puts the lined tetrafluorocarbon pipe into the steel pipe, and the flange sealing surfaces at both ends are out of the flanging of the tetrafluorocarbon pipe. Tight lined tetrafluorocarbon steel pipe is compounded by mechanical method, and there is no gap between the lined tetrafluorocarbon pipe and the steel pipe. The tetrafluorocarbon container is rolled, Rolling lining tetrafluoro tank is a method of fusing and adhering F40 powder to the steel body, and lining tetrafluoro layer with a certain peel strength. Molded tetrafluoro pipe is a method of lining tetrafluoro with steel pipe and pipe fittings as the external mold of steel, evenly filling the tetrafluoro paste solid between the inner cavity and mold core of steel pipe and pipe fittings, applying a certain pressure to compact the tetrafluoro, and then sintering. The pipe fittings are generally molded PTFE pipes. PTFE lined pipes, PTFE lined pipe fittings, PTFE lined elbows, PTFE lined tees, PTFE lined reducers.
2022-10-24
PTFE filter screen special for PTFE filter screen anti-corrosion equipment
The polytetrafluoroethylene filter screen is made of 100% pure PTFE monofilament woven in warp and weft. The mesh size is generally between 15 mesh and 300 mesh, the wire diameter is 0.1mm-0.35mm, and the width is between 1m and 2.7m. Because of its excellent high and low temperature resistance, chemical stability, good electrical insulation, non adhesion, weather resistance, flame retardancy and good self lubrication. It has been widely used in petroleum, petrochemical, chemical, light industry, medicine, metallurgy, aerospace, shipping, automobile, machinery, pressure vessels, towers, environmental protection and other industries, and is used for filtering, screening, catalyst, distillation, evaporation, absorption and other processes to entrain dust particles, droplets and liquid droplets in the gas. The polytetrafluoroethylene filter screen produced now has been widely used in the filter liquid filtration and sewage treatment of anti-corrosion equipment in many large domestic chemical plants, as well as the filtration of ammonia, sulfuric acid and hydrofluoric acid.
2022-10-24
This report is produced by Huajing Industrial Research Institute, which makes a specific analysis of the development status, competition pattern and market supply and demand situation of the valve industry in China, and analyzes the opportunities and challenges faced by the industry from the policy environment, economic environment, social environment and technical environment of the industry. It also focuses on analyzing the operation status and development pattern of key enterprises, and makes a professional prediction on the development trend of the industry in the next few years. To provide professional guidance and suggestions for enterprises, scientific research institutions, investment institutions and other units to understand the latest development trends and competition patterns of the industry and grasp the future development direction of the industry. The valve is a pipeline accessory used to open and close the pipeline, control the flow direction, adjust and control the parameters (temperature, pressure and flow) of the transmission medium. According to its functions, it can be divided into shut-off valve, check valve, regulating valve, etc. Valves are widely used in petroleum, chemical industry, power station, long-distance pipeline, shipbuilding, nuclear industry, aerospace, marine oil production and other fields. They are indispensable fluid control equipment in various sectors of the national economy, with a large market scale. According to data statistics, the scale of China's valve manufacturing market in 2020 is about 12.69 billion US dollars, down 12.72% year on year.
2022-10-24
The 5th Longwan (China Valve City) Valve Exhibition
In 2021, the pump and valve personnel will reap a lot. At the beginning of 2022, we will march on a new journey with high spirits and high spirits to present our gifts to Longwan Valve Exhibition. Deeply tap overseas buyer resources, open up international market channels, and let Longwan Valve Exhibitors expand international markets through multiple channels to enhance international competitiveness. A few days ago, the overseas expansion team of the Organizing Committee participated in the 89th HVAC Expo in Las Vegas, the United States, and once again "went out" to tap the resources of overseas buyers, invite overseas buyers, and consolidate the overseas buyer market. Let international buyers know more about Longwan Valve, strive to build a communication and exchange platform for exhibitors and international buyers, and promote business cooperation between the two sides. The Organizing Committee will also continue to cooperate with overseas institutions and channels in the United States, Brazil, Mexico, Saudi Arabia, the United Arab Emirates, Central Africa, Southeast Asia and other countries to accurately connect with overseas buyers, provide efficient and high-quality buyer resources for exhibitors, and help Longwan Valve brand go global.
2022-10-24
With pipeline distribution as the main line, US steel pipe industry is a comprehensive, multi-functional and digital large-scale steel logistics center integrating steel e-commerce, spot trading, goods agency, warehouse management, marketing services, processing facilities and logistics distribution, which makes the service closer to users.
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