LSAW Steel Pipe

 How to reduce the wear of ERW welded pipes in production and ensure the quality of welded pipes? From the analysis data of ERW welded pipe scrap, it can be seen that the roll adjustment process plays a very important role in the production of welded pipes. That is to say, in the production process, if the rolls are damaged or severely worn, part of the rolls should be replaced in time in the unit, or a certain type of welded pipe should be continuously and fully produced, and the entire set of rolls should be replaced. When replacing the welded steel pipe, it is necessary to adjust the rollers accordingly to ensure the quality of the welded pipe. On the contrary, if the rolls are not adjusted properly, it is likely to cause defects such as twisting, lap welding, edge fluctuations, indentations, scratches and even large ovality on the surface of the welded pipe and the pipe body. The following introduces the operation method of adjusting the roll that should be mastered when changi...

 In March 2016, a European customer sent an inquiry for thin-walled ERW welded pipe with a quantity of 2,400 tons. Since I had already given the customer enough quotation support at that time, the customer still asked for a price reduction, and at the same time told us that he already had a better price plan from another company, and expressed the hope that we could reach the target price and cooperate with us. However, after considering various factors such as quality, delivery time, customer service, etc., we did not accept customer orders. Later in 2019, I learned that the customer and the supplier had a quality and commercial dispute over this project. Customers said that through this incident, we Xinyue has always been upholding the integrity and win-win cooperation concept. Facts have proved that we Xinyue is a trustworthy supplier and partner. In the future, we will focus on cooperation with our Xinyue Steel Group. At the beginning of 2020, the customer sent an inquiry about...

    Marine natural gas must be transported by offshore pipelines, and crude oil produced in shallow water can be directly loaded into tankers by production platforms. However, the crude oil produced in the deep sea, the large oil tanker docking on the production platform will threaten the platform safety, so there is a single point mooring in the sea dedicated to docking large oil tankers. In this way, there must be an oil pipeline connecting the production platforms to a single point mooring.     The marine pipeline laying operation is developed by the construction method of land pipelines crossing rivers and lakes. There are three main methods of pipe laying: pipe laying, towing, and drum boat laying. Which operation method is selected depends on the diameter of the pipe, the depth of the seawater, the sea conditions, and the distance from the shore.     ① Pipelaying vessel laying     This is the most commonly used method. The operation p...

　　Last week, the domestic market price of ERW welded pipe has experienced a sharp decline, including rebar, hot rolled coil and other varieties of the national average weekly price fell more than 3%, the futures market price is surging, rebar 1701 contract price from High 3220 fell to 2697 yuan / ton, down 523 yuan / ton, the largest decline of 16.2%. Iron ore, 1701 contract fell from 656.5 to 524.5 yuan / ton, the largest decline of 20%; the spot market, iron ore prices fell nearly 10% of the price of iron ore, , While the spot price of coke rose 8.6% contrarian. 　　It should be said that this round of falling prices in the expected, but the magnitude of price volatility and market rhythm of the conversion may exceed expectations. November 12, ascribed to sell into the night still makes people tremble with fear, when the superposition of speculative capital frenzy, the futures market, "a feather" is not difficult to imagine. Go back to think about logic, everything is so n...

　　ERW welded pipe manufacturing process 　　ERW process normally applied to the pipe below 24 in, 609 mm. 　　ERW/HFW Longitudinally Welding Steel Line Pipe (Electric Resistance Welding ) Manufacturing Flow Chart 　　Uncoiling – Flattening – Shearing and Butt Welding – Loop Storing – Plate UT – Trimming – Forming – High Frequency Welding – Removal of Inside and Outside Blurs – Ultrasonic Testing – Annealed by Medium Frequency – Air Cooling – Water Cooling – Sizing – Straightness – Cutting Off – Dimension and Initial Surface Inspection – Pipe Ends Beveling – Hydrostatic Test – Ultrasonic Testing of Entire Tube – Off Line Ultrasonic Testing – Ultrasonic Testing for Pipe Ends – Dimension and Final Surface Inspection – Corrosion Resistant Coating – Marking – Pipe Ends Protection – Inspection and Warehousing 　　 LSAW pipe manufacturing process 　　LSAW pipe applied to diameters from 20 in (508 mm) to 40 in (1016 mm). 　　LSAW Welded Steel Line Pipe Manufacturing Flow Chart: 　　Plate UT –...