PickeringPrice of galvanized pipeHow to solve the core component problem

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, 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.

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.

Pickering.If there is only single plane weld, the back welding shall be carried out in sections from the middle, that is,Pickering316L stainless steel square pipe, the arc of the section weld shall be stopped at

Square tube industry plays an important role in production and construction. Square pipe is a steel pipe made of a whole piece of metal without joints on the surface, which is called square pipe.

.Of course, since the q355b square tube material is selected as the base metal, it generally has special purposes, so the welding materials will not be selected casually. It is better to use it according to the welding material manual. If the welding rod manual says that the base metal should be preheated, it should be preheated. Because the welding materials are not used according to the manufacturer's instructions the weld performance will be greatly reduced.

High productivity of square tube: the efficiency of cold production of mechanical parts is very high, especially for parts with large batch. Cold production can be several times, cold pin automata is used to improve productivity. The productivity of table cooling automata is equivalent to that of 100 ordinary lathes or 10 shaft self-propelled machines.

It is learned from the authority that if there is dirt on the outer surface of the square pipe during degreasing the use of cold pin for automobile is twice higher than that of cutting. At present, it can be washed with purified water and dried naturally, then soaked with degreasing agent with a dry cloth to remove the oil, and then dried in the open air. When degreasing the inner surface of the opposite pipe, the end of the pipe can be tightly blocked with a wooden plug or closed with other. The degreasing solvent with the volume of 15% - 20% of the pipe from the other end shall be sealed with a wooden plug, placed in a flat and clean place or on a workbench with sleepers for 60-80min, and the pipe shall be rotated every 20min. If degreasing is required for stainless steel elbow, pour out the solvent in the pipe, dry the pipe with exhaust fan, or dry it with oil-free compressed air or nitrogen,PickeringGalvanized square pipe, each, or dry it with natural air. Large diameter pipes can be manually scrubbed with cotton cloth dipped in solvent; The square tube can also be soaked in a long tank containing solvent for 60 to 80 minutes. The concentrated pipeline and equipment of the concentrated unit can be directly pumped and circulated with 88% concentrated for pickling after all installation. Pipes that cannot circulate or are not resistant to concentrated corrosion must be degreased separately.

Q355b square pipe for mining fluid transportation, Standard No.: gbt14291-2000. The representative material is Q235 grade B steel, which is mainly used for coal mine air pressure, drainage and vertical shaft gas drainage straight seam q355b square pipe.

A. square tube structural steel: (a) high quality carbon structural steel; (b) Alloy structural steel; (c) Spring steel; (d) Easy cutting steel; (e) Bearing steel; (f) High quality structural steel for specific purposes.

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

Work courses.Square tube has good machinability, good cold deformation plasticity and weldability; In addition, the toughness of steel does not decrease much during heat treatment, but it has quite high strength and wear resistance, especially when water quenching; However, this steel has great resistance to white spots, temper brittleness and overheating during heat treatment.

Material classification: square pipe is divided into ordinary carbon steel square pipe and low alloy square pipe.

One of the steps that are prone to defects in the production of square tubes is heat treatment and the other is tensile treatment. Today we need to know the latter. Maybe some people will have a lot of questions about why square tubes are prone to defects in tensile. Now let's analyze the specific causes of defects.

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, many machine parts work under cyclic load, under which fatigue will occur.

Installation material list.Classification of surface treatment square pipe is divided into hot-dip galvanized square pipe, electro galvanized square pipe, oiled square pipe and pickled square pipe according to surface treatment.

The difference between square pipe and seamless steel pipe the main feature of seamless steel pipe is no welding joint and can withstand large pressure. The product can be very rough as cast or cold drawn parts.

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

Pickering.Compared with other traditional pipes, square pipe supply steel pipe has lighter raw materials, high strength, good resistance, can withstand high internal pressure, sensitive application, and can get used to messy or bad geological conditions.

D. do not cut your hands boring, especially for girls. Holding or fingers will bind themselves.

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.