In this paper, the development history, application, production technology and product standards of titanium and titanium alloy longitudinal welded pipe in China are introduced and commented in detail, and the future development trend is predicted. This paper introduces the current production pro ...

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Classification of measuring instruments Measuring instrument is a kind of instrument with fixed shape to reproduce or provide one or more known values. According to different uses, measuring tools can be divided into the following categories: Single value measuring tool A measur ...

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What is hot rolled seamless steel pipe? Hot rolled seamless steel pipe: compared with cold rolling, cold rolling seamless steel pipe is seamless steel pipe rolled under recrystallization temperature, and hot-rolled seamless steel pipe is seamless steel pipe rolled above recrystallization tempe ...

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According to the dimension, shape, weight and allowable deviation of hot rolled steel bar (GB / T702-2008), the distance between the opposite sides of hot-rolled hexagons is 8mm ~ 70mm, which is generally delivered according to the actual weight or the theoretical weight in the market. Calculatio ...

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Gun barrel is one of the core parts of firearms, which is usually made of heat-resistant and non changeable metal tube. When a bullet is fired, the expanding gas generated by the explosion of gunpowder pushes the bullet through the barrel and shoots out of the gun at high speed. In anc ...

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Foreign trade alloy steel pipe: difference between T92 and P92 With regard to the difference between T/P, T-tube generally refers to tube, that is, small tube, which is generally used as superheater or reheater in boiler, and p-tube is large pipe, which is generally used on main steam pipe. For ...

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What is a washer？ The washer refers to the part between the connected part and the nut. Generally flat metal ring is used to protect the surface of the connected part from nut scratch and disperse the pressure of nut on the connected part. [lwptoc] Classification of washers The ...

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The stable operation of blast furnace, coke oven and converter gas pipeline networks is of great significance to meeting the energy requirements of steel and metallurgical enterprises and maintaining normal and safe production. Pipeline transportation is the main method of gas transmission and dist ...

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What is a solenoid valve? Solenoid valve is an industrial equipment controlled by electromagnetism. It is an automatic basic component used to control fluid. It belongs to actuator and is not limited to hydraulic and pneumatic. It is used to adjust the direction, flow, speed and other paramete ...

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Sealing principle of valve There are many kinds of valves, but the basic function is the same, that is to connect or cut off the medium flow. Therefore, the valve sealing problem is very prominent. To ensure that the valve can well cut off the medium flow, no leakage, it is necessary to ensure ...

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According to the annual report of the World Nuclear Association, global nuclear power generation exceeded 250 billion kwh in 2018, accounting for 10.5% of the global power supply. As of June 2019, there are 54 nuclear power units under construction in the world. As a clean energy, nuclear power ...

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What is P92 steel? P92 steel is American steel grade ASTM A335 P92, which is a martensitic heat-resistant steel. In recent years, it has been used more in thermal power plants, mainly for main steam pipes and reheat steam pipes. The main alloy composition is Cr: 9%, Mo: 1%, etc. It can be used i ...

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