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P is brought into steel by ore. generally speaking, phosphorus is also a harmful element. Although phosphorus can increase the strength and hardness of steel, it can significantly reduce the plasticity and impact toughness. Especially at low temperature, it ma......

C is the main element second only to iron, which directly affects the strength, plasticity, toughness and weldability of steel.When the carbon content in steel is below 0.8%, the strength and hardness of steel increase, while the plasticity and toughness decre......

Low finned tube high efficiency heat exchangerThe low finned tube of the low finned tube heat exchanger is a special tube whose outer surface is rolled into threaded fins. The low finned tube not only increases the heat exchange area, but also divides the flui......

Bellows high efficiency heat exchangerThe heat exchange tube of corrugated tube high-efficiency heat exchanger is a corrugated special tube inside and outside the tube. The convex corrugated surface inside and outside the bellows makes the fluid in the boundar......

Wound tube high efficiency heat exchangerWound tube heat exchanger is a new type of high efficiency heat exchanger with compact structure and high heat transfer efficiency. The heat exchange tubes are alternately wound between the core cylinder and the outer c......

Is there such a strange building around you: it is a solid steel structure, but its whole body is covered with thick red and black rust. That's weathering steel.Weathering steel, also known as atmospheric corrosion-resistant steel, is a low-alloy steel between......

Gasket is an important component of flange sealThe gasket is used to seal the gap between the two French sealing surfaces and prevent fluid leakage.Suitable flange gasket material requires that the gasket can produce necessary elastic deformation without being......

Bolt preloadThe preload must compress the gasket to achieve the initial seal. Properly increasing the bolt preload can increase the sealing capacity of the gasket, because increasing the preload can keep a large contact surface specific pressure of the gasket ......

Stainless steel heat exchange tube is a device made of stainless steel. It is one of the components of heat exchanger. It is placed in the cylinder for heat exchange between two media.Stainless steel heat exchange tube have the following advantages:1. Stainles......

The contact surface with gasket placed between flanges and compressed to play a sealing role is called flange sealing surface or compression surface. The selection of sealing surface type is related to operating conditions, consequences of leakage and the natu......

Heat exchanger is widely used in chemical industry, petroleum industry, electric power industry, food industry and many other industries. It accounts for about 40% of the equipment investment in petrochemical plants. It is a key chemical equipment. At the same......

Stainless steel stainless element is chromium, so how does nickel contribute to stainless steel?The stainless steel containing nickel has the best resistance to crevice corrosionCrevice corrosion is almost eliminated by adding nickelNickel stainless steel has ......

How are all kinds of metals formed? Let's take a look at the other six ways1. MachiningMachining: in the production process of parts, cutting off the thickness of excess metal layer on the blank directly with the cutter to meet the technical requirements of di......

01 CastingLiquid metal is poured into the mold cavity which is suitable for the shape and size of the part, and then cooled and solidified to obtain the blank or part, which is usually called liquid metal forming or casting. Casting can be divided into sand ca......

Due to the different application fields of industrial grade metal pipes, the required surface treatment processes are also different. Let's take a look at several common treatment processesPickling surfaceAcid pickling is a method of using acid solution to rem......

The 20th century is a century of rapid development of modern science and technology, one of the important signs is the brilliant achievements of human beings in the field of aerospace. In the 21st century, aerospace has shown a broader development prospect, an......

The heat treatment of stainless steel pipe is an indispensable part of MTSCO production, so what are the ways and functions of heat treatment?The results of Cr, Ni and other alloy elements in austenitic stainless steel reduce MS point to below room temperature......

Maersk predicts that supply chain bottlenecks and shortage of containers due to surging demand will continue until the fourth quarter of 2021, and then return to normal; EVA shipping general manager Huiquan Xie also said previously that congestion is expected ......

Recently, Mtsco's 30 tons Alloy 625 heat exchanger tube production has come to an end, and has entered the sampling inspection stage. This order is of pioneering significance for Mtsco to export nickel alloy products. Based on the strategic cooperation with Eu......

The explosive welding was first proposed by Carl in 1944. He first observed the solid state welding of materials caused by explosive detonation under high-speed collision, and proposed the idea of welding all kinds of metals together by using explosion and ult......

1. ChromiumChromium is the main element to determine the corrosion resistance of stainless steel, when the chromium content (atomic ratio) reaches 1 / 8, 2 / 8...... The electrode potential of iron increases by leaps and bounds, and the corrosion resistance al......

Last year, the sales PK competition of our company was successfully completed. As a reward, we went to Anhui Province, 500 kilometers away from Jiaxing.Feel the unique architectural style of Anhui ancient villages, white wall, black tile, horse head wallIt is ......

Companies in the upstream oil & gas industry have been looking for ways to increase production capacity, improve process efficiency and minimize machine downtime. At present, many large oilfield service companies are using chemical injection system to separate......

The classification of non-metallic inclusions is as follows:1. Classified by chemical composition:Sulfides (FeS, MnS), oxides (FeO, Al2O3), sulfates (2Mno, SiO2), hydrides (Tin, ZrN)2. Classification by deformation capacity:Brittle inclusions (Al2O3), plastic ......