The high-strength shipboard E500 is a high-strength and high-toughness special steel plate, which is mainly used to manufacture ships and marine engineering machinery that require good weldability. The steel grade adopts low-carbon bainite composition design idea and is produced according to TMCP process. The maximum thickness is expanded to 60mm, the yield strength requirement is more than 500MPa, the tensile strength is required to be between 610MPa and 770MPa, and the tensile strength can withstand more than 33J at -40°C. The lateral impact requires rapid cooling to below 600 °C after rolling, which is quite difficult to produce for 50 mm thick plates. The second rolling mill overcomes various technical problems, gives full play to the advantages of the new line equipment, and utilizes the characteristics of direct quenching of the rapid cooling equipment DQ, paying close attention to each process in the rolling process to ensure that the rolling conditions are met.
On the same day, the total weight of the seven pieces rolled was 103.261 tons of E500 new steel, which were all inspected and tested in accordance with technical standards.
Oxygen Machine is one kind of product producing oxygen from air. There are small oxygen machine providing 3-10 liter per minute flow, mainly using at home. There are also big Industrial Oxygen Generator providing oxygen with flow rate up to 10000 Nm3/hr. From technology, there are pressure swing adsorption(PSA) , vacuum swing adsorptio (VSA)and cryogenic three types. The PSA type is for smaller flow rate within 300 Nm3/hr, from 300 to 3000 Nm3/hr, it is ok to use VSA technology. For bigger flow rate, normally use cryogenic Oxygen Plant.
No matter what technology, these oxygen machines all use oxygen in the air. All use Air Compressor to provide raw material, compressed air. Then the compressed air will be cleaned, dried for futher separation. After separation, the produced oxygen either directly goes to oxygen using point or they are compressed into high pressure such as 150 bars or 200 bars, then stored in cylinders and tanks.
Oxygen Machine
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Shandong Gamma Gas Engineering Co. Ltd. , http://www.gammagas.com