JolietteGalvanized square pipe equipment manufacturerDevelopment Introduction

announcer:hp256HP158312377 release time:2022-03-13 16:17:32

Square tubes are more and more widely used in practice. Different types of square tubes have different characteristics, and the performance of each type of square tube is also different. Choose according to its performance in different aspects,JolietteGalvanized pipe, so as to improve its work efficiency. Next, let's introduce what should be paid attention to when heating the lower tube.

Soft blowing treatment of molten steel after calcium treatment can reduce residual inclusions in molten steel and better wrap MNS around al20 CAS and other cores.

Joliette.Brinell hardness (HB), Rockwell hardness (HRC) and Vickers hardness (HV) are commonly used.

Hardness test is to determine the hardness of seamless q355b square pipe by slowly pressing a hard indenter on the sample surface according to the specified conditions, and then testing the indentation depth or size.

.The great difference between the square pipe and the thin-walled steel pipe produced by the square pipe factory lies in the thickness of the steel pipe wall. Generally speaking, the thin-walled steel pipe is cold drawn technology, while the square pipe generally uses hot rolling technology. If it is distinguished by the unit of measurement, and the thin-walled steel pipe is that the wall thickness diameter is less than 0.02, Larger than is the square pipe. In terms of use, thin-walled steel pipes are mostly used in pipes. The square tube is mostly used in the blank of hollow parts. Used on pressure bearing and important pipelines.

Square pipe, the steel pipe whose ratio of outer diameter to wall thickness is less than 20 is called square pipe. At present,Joliette5025 galvanized square pipe, the square tubes produced by q355b square tube factory are mainly used in tap water engineering, petrochemical industry, chemical industry, electric power industry, agricultural irrigation and urban construction. For transportation: water supply and drainage. For gas transmission: gas, steam and liquefied petroleum gas. do

Square tube is the main type of square tube. It is also very popular in the square tube market. There are many people doing this kind of thing, so there are many in the competition. The future market potential is huge. We should grasp this information well. In addition, we must learn about relevant maintenance and repair!


JolietteGalvanized square pipe equipment manufacturerDevelopment Introduction



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.

Some of these are well understood by everyone. Therefore, the quality of square tubes will directly affect the development of the construction industry. What if we can make the service life of square tubes longer? Here, we also need to ask the personnel of the square tube manufacturer for instructions, and use ingenious methods to prolong the service life of the square tube, so that the square tube can bring us greater help in life.

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

offer.Square pipe is the name of square pipe, that is, steel pipe with equal side length. It is made of rolled strip steel after process treatment. Generally the strip steel is unpacked, leveled, then rolled into a square pipe from the round pipe, and then cut into the required length. Usually 50 pieces per bag.

Brinell hardness, Rockwell hardness and Vickers hardness are commonly used.

All seamless q355b square tubes shall be tested for mechanical properties. Mechanical property tests are mainly divided into two categories: tensile test and hardness test.


JolietteGalvanized square pipe equipment manufacturerDevelopment Introduction



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.

Work courses.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.

Ferroalloy is an alloy composed of iron and silicon, manganese, chromium, square tubes and thin-walled square tubes according to wall thickness. Gbt6728-200gbt6725-200gbt3094-2000, ASTM A500 JIS g34en10210 or technical agreement.

Joliette.The service life has a great impact on the isotropic performance of the square tube. The use of secondary refining technology (including vacuum refining, ESR and ladle powder spraying) can improve the purity of the square tube, especially reduce the content of harmful impurities in the square tube, which is beneficial to improve the performance.

Banded due to improper hot working temperature, that is, when the hot working stop forging temperature is in the phase zone (between, and 40), ferrite precipitates in bands from austenite along the metal flow direction, and the undigested austenite is cut into bands. When it is cooled to a,Joliette159 galvanized pipe, the banded austenite is transformed into banded pearlite. This can be improved or eliminated by increasing the final rolling temperature, increasing the forging ratio, diffusion annealing and normalizing.

The strip caused by component segregation, 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.