Kaifeng medium thick wall rectangular tube manufacturer wholesale manufacturer
1. With a thick and dense pure zinc layer covering the steel surface, it can prevent the steel matrix from contacting with any corrosion solution, and maintain the steel matrix from corrosion. In ordinary atmosphere, the surface of square tube forms a thin and dense layer. It is difficult to dissolve in water, so it plays a role in maintaining the steel matrix. If insoluble zinc salt is generated with other components in the atmosphere, the square tube has a better anti-corrosion effect; 2. It has an iron zinc alloy layer, which is dense in separation, and has special corrosion resistance in marine salt fog atmosphere and industrial atmosphere; 3. The square tube has strong wear resistance due to its solid separation and mutual solubility of zinc and iron; 4. Because zinc has good ductility and its alloy layer is firmly attached to the steel base, the square tube can stop cold punching, rolling, wire drawing, bending and other molding without damaging the coating; 5. After hot-dip galvanizing of steel structures, it is equivalent to one annealing treatment, which can effectively improve the mechanical properties of steel matrix, eliminate the stress of steel parts during forming and welding, and is conducive to stopping turning of steel structures; 6. The surface of the heat square tube is bright and beautiful; 7. The pure zinc layer is a plastic zinc coating in hot galvanizing. Its properties are basically close to pure zinc, and it has ductility, so it is flexible.
Kaifeng medium thick wall rectangular tube manufacturer wholesale manufacturer
The billet of square tube is a necessary raw material for square tube consumption. When the bending degree exceeds the specification requirements, the billet of square tube is easy to cause the piercer to roll and jam, which is easy to form uneven wall thickness of perforated blank. It is necessary to strictly implement the billet acceptance system of square tube and the billet sawing system of square tube. It is necessary to timely inspect the necessary raw materials of the consumption square tube with the incoming materials and deal with the problems found in a timely manner, which will not only affect the normal perforation structure adjustment of the piercer, but also affect the dimensional accuracy of the entire square tube.
Kaifeng medium thick wall rectangular tube manufacturer wholesale manufacturer
Square pipes are divided into plain carbon steel square pipes and low-alloy square pipes according to their materials. 1. Ordinary carbon steel is divided into Q195, Q215, Q235, SS400, 20 # steel, 45 # steel, etc. 2. Low alloy steels include Q345, 16Mn, Q390, ST52-3, etc. According to consumption specifications, the square tube can be divided into: national standard square tube, Japanese standard square tube, British standard square tube, American standard square tube, European standard square tube, and non-standard square tube. The square tubes are classified according to the section shape: 1. Simple section square tubes: square square tubes, rectangular square tubes. 2. Complex cross-section square tube: flower shaped square tube, tooth shaped square tube, corrugated square tube, special-shaped square tube. Square tubes are divided into hot-dip galvanized square tubes, electrogalvanized square tubes, oiled square tubes and pickled square tubes according to their appearance. Square pipes are classified according to their uses: square pipes for decoration, machine tool equipment, machinery industry, chemical industry, steel structure, shipbuilding, automobile, steel beam and column, and special pipes. Square and rectangular tubes are classified according to wall thickness: extra thick square and rectangular tubes, thick square and rectangular tubes and thin-walled square and rectangular tubes.
Kaifeng medium thick wall rectangular tube manufacturer wholesale manufacturer
Square tube is a kind of tube that we have used a lot in recent years, so we would like to know how this kind of tube can be used in our life? Let's briefly introduce the role of this pipe in our life. Square tube is a special tube with hollow cross section. It is precisely for this special design that the application of this tube in our life has been expanded a lot. Especially in our shipbuilding and construction industries, as well as in the military and aviation fields, there has been a great expansion. The main function is to improve the service life and anti-corrosion performance of square tubes, which also makes the performance of square tubes further improved, and the quality and price of square tubes are directly affected by the good or bad layer. Assuming that to improve the quality of the pipe, it is necessary to reduce the iron content in the zinc liquid by reducing the zinc slag, that is, to reduce the factors of iron dissolution. This ability can form a better layer on the surface of our square pipes, and it is also because of this that our pipe manufacturers have a big direction to transform this kind of pipe.
Kaifeng medium thick wall rectangular tube manufacturer wholesale manufacturer
A large number of pipes are used to escort fluids, such as oil, natural gas, water, gas, steam, etc. In addition, when the bending and torsional strength are the same, the weight is light, so they are also commonly used to manufacture mechanical parts and engineering structures. It is also used for consumption of various conventional weapons. Square tubes are commonly used in various building structures and engineering structures, such as building steel for building beams, bridges, transmission towers, lifting and transportation machinery, ships, industrial furnaces, reaction towers, container racks, warehouse shelves, etc. Square tubes play a very important role in the construction industry.
Kaifeng medium thick wall rectangular tube manufacturer wholesale manufacturer
There are more and more manufacturers of seamless square and rectangular tubes. The demand and market sales are accumulated day by day, which means that the manufacture of seamless square and rectangular tubes is stopped by virtue of many advantages and characteristics of seamless square and rectangular tubes. Seamless square and rectangular tubes can be said to be icing on the cake in terms of processing technology and manufacturing process. The wear resistance and ductility of the process are relatively good. The products manufactured are smooth in appearance and superior in performance! The seamless square and rectangular tube has good strength, toughness, plasticity, welding and other process properties, and has good ductility. Its alloy layer is firmly attached to the steel base. Therefore, the seamless square and rectangular tube can stop cold punching, rolling, wire drawing bending and other forming without damaging the coating. It is suitable for ordinary processing such as drilling, cutting, welding, cold bending and other processes. The seamless rectangular tube after hot galvanizing has a bright and beautiful appearance. Seamless square and rectangular tube can be divided into seamless tube and welded tube. Seamless square and rectangular tube is extruded from seamless round tube. Generally, it can be selected and used according to detailed requirements. Due to its excellent performance, seamless rectangular tubes are widely used in such aspects as glass curtain walls, power towers, communication networks, water and gas escorts, wire casings, houses, bridges, metal structures, etc.
