BelizeDN150 galvanized square pipeAnalysis of spot market

the drawing process of square tube is quite meticulous. For a long time, square tube, square tube, seamless square tube, galvanized square tube galvanized tube and other brand products are provided with complete designated products and quality assurance. In the process of continuous development,Belize50100 galvanized pipe, square tube has also been processed more rigorously.

The square tube shall be painted correctly. Professional square tube, square rectangular tube, seamless square tube, galvanized square tube and galvanized square tube have stable, safe and reliable performance and can be maintenance free. The technical level has reached the domestic level and the advanced level of similar international products. Otherwise, the square tube will be corroded. The correct paint shall also be selected during painting, so as to ensure that the square tube can be used more firmly, So as to ensure that the square tube will be better and better in future use. The square tube is widely used in the soul. Each kind of square tube has different functions for the other tube. We choose the right way and different square tubes, which can increase the performance of the square tube and be applied to different fields. Let me briefly introduce the lower tube.

Belize.It should be noted that the position of the disc from the calibration line can be adjusted according to the reinforcement diameter, and R1 and R2 can be equal or different.

Solid bending, as the name suggests, is to compact the bending. During real bending the inner and outer rollers and the inner and outer walls of the pipe blank are compacted in both directions.

.In the process of square pipe, we will conduct a variety of tests on it to ensure that the square pipe can be better used in practice. In order to make better use of large-diameter steel pipe, we will continue to innovate. Let's introduce the main elements contained in the lower pipe. For the martensitic chromium square tube the main elements affecting the are chromium, carbon and molybdenum; For Martensitic chromium nickel square tube, the main influencing elements are nickel, molybdenum, aluminum, cobalt, nitrogen and titanium.

Hot rolled q355b square tube continuous casting slab or blooming slab is used as raw material, heated by stepping heating furnace and descaled by high-pressure water into roughing mill. Roughing material enters finishing mill after head cutting, tail cutting and then computer rolling. After final rolling, it is rolled into straight hair coil through laminar cooling and coiler. The head and tail of straight hair curl are often tongue shaped and fish tail shaped, with poor accuracy of thickness and width, and there are often defects such as wave shape, hem tower shape and so on. The coil weight is heavy and the inner diameter of the steel coil is 690mm.

Except for the thickening of the wall thickness, the corner size and edge flatness of the square pipe are uniform

Q355b square tube, the selected die material, has obvious hardening in the deep drawing process, resulting in many hard metal points, resulting in adhesion. Special products such as professional square tube, square rectangular tube, seamless square tube, galvanized square tube and galvanized tube are 20-year-old brands, with advantageous price and guaranteed quality. It makes the surface of workpiece and die easy to scratch and wear, so tool steel for general die can not be used.

Welding is a synthetic gradient material, which can be used as solder to weld special-shaped materials in order to overcome the mismatch of chemical, mechanical and physical properties between base metals.

With the development of economy, there are a lot of demands for project construction, which leads to the continuous increase of square pipe. The of square pipe is more complex. Great efforts should be made in the selection of raw materials, structured treatment and so on.

Executive standard.Square tubes can be degreased with organic solvents (vinyl chloride, vinyl chloride, carbon chloride, industrial solvents, etc.),Belize35 galvanized square pipe, concentrated or alkaline solution. Industrial vinyl chloride is suitable for degreasing metal parts; Industrial chlorinated carbon is suitable for degreasing ferrous metal and non-metallic parts; Vinyl chloride is suitable for degreasing metal parts and non-ferrous metal parts; The industrial concentration shall not be less than 86%, which is suitable for manual scrubbing of the inner surface of the container with low degreasing requirements; 88% concentration, applicable to the concentration of some pipe fittings and porcelain rings of concentration device

At present, square tubes also have many good properties,BelizeSpecification sheet of galvanized pipe, strong corrosion resistance and heat resistance, and are widely used in many scientific and technological fields. Therefore, even so, wise people still do not stop studying the surface adhesion resistance of square tubes. Square tubes in the future will have better performance and make more important contributions to development.

The butt joint between the head and tail of square pipe and strip steel adopts single wire or double wire submerged arc welding, Standard No.: gbt14291-2000. The representative material is Q235 grade B steel. It is mainly used for straight seam q355b square pipe for mine air pressure, drainage and shaft gas drainage.

retailer.It is feasible to use the theory to calculate static structures, such as warehouses, houses and bridges, but it is not suitable for moving components such as wheels. At this time, the European Design Association formulated a plastic design code, which is mainly used for static load plane beams and frame structures subjected to bending stress The solution is as follows: for high-rise buildings, more detailed calculations are needed.

B. low alloy structural steel C. ordinary structural steel and high-quality steel for specific purposes (including high-quality steel)

Both internal and external welding of square pipes are carried out by American Lincoln Electric welding machine for single wire or double wire submerged arc welding, so as to obtain stable welding specifications.

Belize.From the perspective of production, we should give full play to the productivity of production equipment and reduce the consumption of fuel and equipment on the basis of meeting the size and performance requirements of q355b square tube. Therefore, the temperature of no open forging and final forging is a comprehensive technical and economic problem. If qualified q355b square tubes can be obtained in the temperature range of the vehicle, reasonable process procedures should be selected from an economic point of view. Obviously, the higher the temperature, the easier the forging and the higher the productivity, but the greater the fuel consumption and the loss of the heating furnace; We should consider these two aspects and make a reasonable choice.

It is recommended that the galvanized surface be primed with epoxy zinc yellow primer.

The covering shall be strong and durable to prevent decay and leakage caused by long-term sun and rain.