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.
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.
Laredo.With the progress of the times and the faster and faster economic development, the places where large-diameter seamless square tubes are used are becoming more and more popular
In the trend of the times, we will change with the changes of the times, we will the use of the square tube, so that we can use the square tube more in future production. Next, let's introduce the difference between carbon steel and square tube.
.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.
Therefore, square tube, 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, square tube has also been processed more rigorously.
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.
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.
The square tube is divided into a. boiling steel according to the degree of deoxidation and pouring; b. Semi killed steel; c. Killed steel; d. Special killed steel. The deformation of q355b square tube is mainly caused by the shrinkage force of the weld greater than the strength of the base metal.
In fact, the casting cleaning is not just shot blasting. For large parts, the drum sand cleaning is carried out first, that is, the riser of the casting is cut off and rolled in the drum, and the square tubes collide with each other in the drum to remove most of the sand on the surface before shot blasting or shot blasting.
management.The covering shall be strong and durable to prevent decay and leakage caused by long-term sun and rain.
The strength, and the whole opportunity is tired in this environment.
There are some defects in q355b square tube during stretching many mechanical machines are under repeated load which are caused by the following reasons. The common main reasons are as follows: select the appropriate q355b square tube material, 1Cr18Ni9Ti is more stable than 0Cr18Ni9Ti and has better crack resistance. Therefore and the commonly used materials in austenitic q355b square tube are 1Cr18Ni9Ti and 0Cr18Ni9Ti. During deep drawing, 1Cr18Ni9Ti material should be selected as much as possible.
When the square tube is processed, it needs to be properly polished to ensure durability, smoothness and. There are kinds of polishing for general stainless steel profiles, including mechanical polishing, chemical polishing and electrochemical polishing.
Quality management.Formulate the documents stored by the square tube for a long time and implement them in accordance with.
Square pipe for conveying flammable and non flammable fluids, Standard No.: gbt97 1 (gbt97 - 1997). The representative material is l245-l4 pipeline steel. It is mainly used to transport flammable and non flammable fluids. Low pressure or high pressure square pipes have high requirements. The purpose of large-diameter q355b square pipe is q355b square pipe, C-shaped steel and H-shaped steel. It is mainly used in the construction of simple plant, steel structure and other infrastructure. Q355b square pipe is generally used as the frame and purlin of the plant. C-shaped steel Steel is an important support for the plant, and H-section steel is used as load-bearing. Especially in recent years, a large number of small and medium-sized enterprises have started to build spacious and bright plants. If traditional buildings are built, the time is slow, the work progress is affected, and the investment is large. For some small and medium-sized enterprises, if the investment in the plant is too high, the capital will be produced after operation Serious impact. The plant built with q355b square tube, C-section steel and H-section steel has the characteristics of time saving, money saving and fast use. Therefore, the sales of q355b square tube, C-section steel and H-section steel have increased significantly in recent years and become the first choice for plant construction. Q355b square tube, C-section steel and H-section steel are mainly used in the construction of simple plant, steel structure and other infrastructure The q355b square tube is used as the frame and purlin of the plant. The C-shaped steel is used as the important support of the plant, and the H-shaped steel is used as the load-bearing. Especially in recent years, a large number of small and medium-sized enterprises around the country have started to build spacious and bright plants. If the traditional buildings are built, the time is slow, the work progress is affected, and the investment is large. For some small and medium-sized enterprises Said that if the investment in the plant is too high, it will have a serious impact on the capital after operation. The plant built with q355b square pipe, C-section steel and H-section steel has the characteristics of time saving, the sales of q355b square pipe, C-section steel and H-section steel have increased significantly in recent years, becoming the first choice for plant construction. Large diameter q355b square pipe plant is introduced Shao measures for effective wrinkle of seamless square pipe: check the wrinkle state, even when the wrinkle around the part is determined to be less than the clamping force, and the gradual increase of the roll gap force can be. When drawing the cone and hemispherical components, it should be increased to increase the inner diameter of the inner plate and the tensile stress of the wrinkle drawbead. Adopt the principle of loosening after tightening to loosen after tightening and ask Question.
It is forbidden to degrease the oil square pipes and pipe fittings in the direct production concentration unit, air separation unit oil refining and chemical engineering according to the design requirements. The purpose of degreasing is to prevent the transported or stored materials from being contaminated by grease or organic matter; Avoid mixing transported or stored materials with grease or organic matter; Oil content to ensure the activity of the catalyst; The content of oil and organic matter to ensure the purity of the product. The installed square pipe shall be disassembled into pipe sections for degreasing. Pipes that cannot be disassembled after installation shall be degreased before installation. Square pipes with obvious oil stains or serious corrosion shall be cleaned by steam purging, sand blasting or other methods before degreasing.
Laredo.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.
The square tube will be tested in many aspects of its performance in the process. Each test is for the square tube to have a good performance in practical application. So what are the different properties of square tubes? Next I'll introduce the characteristics of the lower tubes in terms of mechanical properties.
Square tube is in our reality