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Air separation units

Air separation units
The air separation unit is a set of industrial unit which can separate the components of air to produce oxygen, nitrogen and argon. In addition, it can also be used to purify rare gases. Air separation unit is widely used in metallurgy, roommate, coal chemical industry and other fields.
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Oct 14, 2020
On October 13, it was reported that Kaifeng DEAR air separation Industrial Co., Ltd. (hereinafter referred to as DEAR air separation) and Luoyang Zhon
Jul 31, 2020
On July 29, it was reported that Kaifeng DEAR air separation project department organized the kick-off meeting of KDON(Ar)-16000 / 1600 / 550 air sepa
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Lean alloy steel is often used in special pressure-bearing equipment. The alloying elements often added include manganese, silicon, chromium, nickel, molybdenum, vanadium, boron and rare earth elements. Most of silicon and manganese melt into ferrite, only a small amount into cementite, which are commonly used strengthening elements in lean alloy steel. The amount of chromium and nickel is generally small, and the main role of chromium and nickel is to increase the undercooling degree of austenite and refine the microstructure. Part of chromium is dissolved in ferrite and some in cementite, which can improve the stability of cementite. Molybdenum is dissolved in ferrite slightly, and has the effect of solid solution strengthening. It is a strong carbide forming element, which can improve the high temperature strength of steel and improve the temper brittleness.
Dec 02, 2020
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