Sanhe-City160 galvanized square pipeManufacturing process

announcer:hp256HP158312377 release time:2022-02-25 12:07:13

Square pipe is an important type of square pipe, which has great similarities with seamless steel pipe, but it is different. Square pipe is of great use in square pipe, which is generally used in the field of building materials and pipes. Today we tell you about the painting of square pipe. In fact,Sanhe-CityGalvanized square tube customized, most manufacturers need to do this function, not only painting but also galvanizing. Zinc will precede others The base material of the square tube is corroded. If painting is not for you, it will cost you two money. If painting it is recommended that you brush the zinc rich primer, it will corrode quickly, and then continue to corrode your zinc coating, so as to achieve the top coat on the zinc rich primer. In fact, you should brush the zinc rich primer before galvanizing

Spray fluorocarbon paint after.

Sanhe-City.Change to square pipe: generally, the strip steel is unpacked, leveled, crimped and welded to form a round pipe then rolled into a square pipe from the round pipe, and then cut into the required length. Stage (1904 & mdash; 1934)

Requirements for samples samples can be taken from metal pipes with qualified appearance. Generally, sawing is adopted.

.Square tubes have a good performance in practical application. When we choose square tubes in practice, we should choose them according to their characteristics. We have different types of square tubes in different fields. What is the difference between the characteristics of square tubes and ordinary steel tubes? Let's introduce them today to let us have a deeper understanding of each other's tubes.

Function index analysis of square tube - strength and plasticity discussed later are machine function indicators of metal under static load. In practice, many mechanical machines are under repeated load employment. In this environment, the whole opportunity is tired.

In case of doubt about the strength of solid q355b square tube, it can be based on tb10426 & mdash; 200 the compressive strength of q355b square tube on the surface of the structure is indirectly measured by the post loading method. The measurement should be carried out at the age of about 56 days, and the measured average strength is required to be not lower than the design value or the specified value. When the requirements are not met, the core drilling sampling method can be used for verification.


Sanhe-City160 galvanized square pipeManufacturing process



The painting of the square tube has to go through a process, which requires us to conduct comprehensive consideration and analysis. In particular, but should be placed for a period of time and wait until the paint is dry!

Principle of cold drawing strengthening: the lattice defects of steel increase during plastic deformation, and the serious distortion of defect lattice will hinder the progress and slip of lattice, so the yield point of steel increases and the plasticity and toughness decrease. Due to the internal stress in plastic deformation, the modulus of steel decreases. The cold drawn reinforcement is stored at room temperature for 15 ~ 20d or heated to 100 ~ 200 ℃ and maintained for a fixed time. This process is called aging treatment.

Effective treatment of square tube coating & ldquo; Surface defense line & rdquo; Surface technology and measures square tube coating is used as the back course & ldquo; Surface defense line & rdquo; The surface treatment technologies and measures can be carried out on the basis of other surface treatment technologies or processes. Here's the & ldquo; Surface treatment before coating & rdquo; It refers to all treatment measures for preparation for coating or joint protection with coating. Therefore, the surface treatment before coating is also called coating surface pretreatment.

Latest quotation.Section shape classification square tube is classified according to section shape: simple section square tube: square tube, rectangular square tube.

The square tube adopts the electric contact pressure gauge to press down the pressure of the oil cylinder on both sides of the conveyor to ensure the smooth transportation of the strip steel.

The butt joint between the head and tail of square pipe and strip steel adopts single wire or double wire submerged arc welding and automatic submerged arc welding is adopted for repair welding after rolling into square pipe.


Sanhe-City160 galvanized square pipeManufacturing process



In short, the square tube production process includes these processes: tube blank & mdash& mdash; Cut off & mdash& mdash; Heating & mdash& mdash; Perforation & mdash& mdash; Pipe rolling & mdash& mdash; Sizing (reducing) & mdash& mdash; Straightening & mdash& mdash; Cut head and tail & mdash& mdash; Inspection & mdash& mdash; Packaging & mdash& mdash; Warehousing.

Packaging strategy.  

The disadvantage of empty bending is that during synchronous empty bending at the upper and side,Sanhe-City30 hot dip galvanized square pipe, due to the pressure generated by the upper roll and the lower roll at the same time, the forming force is easy to exceed the critical point. All kinds of square tubes, square rectangular tubes, seamless square tubes, galvanized square tubes and galvanized tubes have formal qualifications. Welcome to telephone inquiry and sincerely invite cooperation! It will cause edge instability and concave, and will also affect the stable operation of the unit and forming quality. This is also the different characteristics of q355b square tube and round tube empty bending.

Performance index analysis fatigue of square tube the strength, plasticity and hardness discussed above are the indicators of the mechanical properties of metal under static load. In fact,Sanhe-CityHot dip galvanized pipe factory, many machine parts work under cyclic load, under which fatigue will occur.

Sanhe-City.Except for the thickening of the wall thickness, that is, when the steel contains harmful impurities such as phosphorus and is pressed and delayed, the impurities elongate along the rolling direction. When the steel is cooled below 4, these impurities become the core of ferrite, making the morphology of ferrite distributed in bands, and then pearlite distributed in bands. This band can be eliminated by electroslag remelting and increasing crystallization speed.