The iron filings and burrs on the cutting section shall be completely removed with a file or appropriate tools to prevent the iron filings and burrs from scratching the rubber O-ring and other accessories when connecting another part.
Polishing process of square tube square tube is widely used in our life, so in the subsequent application process, the requirements for square tube in many places are also quite strict, especially for surface treatment. Today we briefly introduce how the polishing process should be carried out.
Thonex.Square tube production most square tube processing is square tube pressure processing, resulting in plastic deformation of the processed steel (billet, ingot, etc.). According to the square tube processing temperature, the square tube can be divided into cold processing and hot processing. The main processing of square tube includes: rolling: the gap (various shapes) between the square tube metal blank and the rotating roll , because of the compression of the roll, the material section is reduced and the length is increased. This is a common production method for producing square tubes. It is mainly used to produce square tube profiles, plates and tubes. It is divided into cold rolling and hot rolling.
Square tube saves raw materials: the material rate of cold parts can usually reach more than 80%. For example the material rate of pin cutting of brand automobile is 43%, while the material rate when cold is used is increased to 92%; For another example, the material rate is increased from 28% in the past to%. It can be seen that the use of cold production of mechanical parts can save a lot of steel and non-ferrous metal materials.
.The first is the influence of external conditions. It mainly depends on the medium characteristics and temperature around the square pipe and whether the medium around the pipe is corrosive. Because the corrosivity of the medium is closely related to the microorganisms contained in the soil. And if it is a long-distance pipeline, the soil environmental properties are more complex. In addition, the temperature of the environment where the pipeline is located will also affect the corrosion of the square pipe. If the temperature is high, the corrosion speed will also be accelerated, while if the temperature is low, the corrosion speed will be slowed down.
Section shape classification square tube is classified according to section shape: simple section square tube: square tube, rectangular square tube.
General square pipes are stacked outdoors, and most of them are buried underground when in use, so they are easy to corrode and rust. In order to ensure the smooth flow of the pipeline, square pipes must have strong corrosion resistance. Once the pipeline is corroded, it will cause oil and gas leakage, which will not only interrupt transportation, but also pollute the environment, and may even lead to fire and cause harm.
Square tube saves raw materials: the material rate of cold parts can usually reach more than 80%. For example, the material rate of pin cutting of brand automobile is 43%, while the material rate when cold is used is increased to 92%; For another example after the universal joint bearing sleeve is changed to cold, the material rate is increased from 28% in the past to%. It can be seen that the use of cold production of mechanical parts can save a lot of steel and non-ferrous metal materials.
Ferroalloy is an alloy composed of iron and silicon, manganese, titanium and other elements. Ferroalloy is the raw material for steelmaking. It is used as deoxidizer and alloy element additive for steel in square tube steelmaking.
Now, Fangguan can achieve such good results in the market, which is completely inseparable from the manufacturers' hard work in technology. I believe that the Fangguan market will be better and better in the future.
Economic management.Now in many construction projects, we can see the shadow of q355b square tube, because q355b square tube is quite hard in hardness, and the performance and quality of deformation, stamping, cutting and other processing are based on hardness, which is also the guarantee of mechanical properties. Based on the above it is very important to test the hardness of q355b square tube.
Of course, 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.
Square pipe is a square steel pipe cold drawn from seamless steel pipe, which is not a straight q355b square pipe, and q355b square pipe, also known as welded pipe, is a square pipe welded by steel plate or strip steel after crimping. Q355b square tube has the advantages of simple production process high production efficiency, many varieties and specifications and less equipment. The commonly used materials are Q235A and Q235C.
After the square pipe is produced, the surface treatment is generally carried out, that is, the scale, rust, dirt and attachments on the surface of the square pipe are removed. Those that cannot be treated by physical treatment should be treated by chemical treatment.
system.Application: it is widely used in machinery, construction, agricultural vehicles, agricultural greenhouses, automobiles, highway guardrails, container frames, square tubes, raw materials, i.e. strip coils, welding wires and fluxes. It must undergo strict physical and chemical inspection before being put into operation.
The disadvantage of empty bending is that during synchronous empty bending at the upper and side, 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.
Avoid contact with pollutants such as oil and copper when storing square tubes.
Thonex.There are several kinds of color q355b square tubes: high temperature oxidation method, chemical oxidation method, electrochemical oxidation method, ion implantation method and gas phase cracking method.
The square tube is formed by external control or internal control roller.
Cutting: 1 to be fast, no teeth, or whether the cutting line is flat, the starch taste of oil affects the quality of dishes. First choose to cut potatoes with less sharp bottom, so when you cut, it's easy to leave the corner of the side end.