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石油部第一工程公司第一工程处,在催化装置再生器集气室的现场组对施工中使用石英砂氧——乙炔火焰成功地切割了美国321钢材(相当于我国18—8型铬镍不锈钢)厚度为26毫米的钢板。割口长185.6米(包括切割、修整坡口及开孔),质量完全达到焊接要求。该切割工艺具有设备简单、操作容易、质量好、效率高、成本低等优点。一、原理
The First Engineering Department of the Ministry of Petroleum, the First Engineering Department, successfully used the quartz sand oxygen-acetylene flame in the site group of catalysis unit regenerator plenum to cut the 321 steel of the United States (equivalent to China’s 18-8 chromium-nickel Stainless steel) Thickness of 26 mm steel. Cutting length 185.6 meters (including cutting, trimming bevel and hole), the quality of fully meet the welding requirements. The cutting process has the advantages of simple equipment, easy operation, good quality, high efficiency and low cost. First, the principle