脱溶釜内筒体及封头设计材料是Monel400/Q345R镍基合金复合钢板,焊接技术是制造这台设备的关键技术之一。通过分析复合钢板和镍基合金的焊接特点,镍基合金含有Cu成分,Cu溶入在碳钢中极易出现热裂纹,故复合钢板焊接的关键是控制过渡层焊接时复层合金成分不溶入基层。镍基合金焊接时容易产生气孔和裂纹,焊前清理和控制焊接线能量是防止镍基合金焊接缺陷的有效途径。 Desolventizing vessel barrel and head design material is Monel400 / Q345R nickel-based alloy composite steel, welding technology is one of the key technologies to create this device. By analyzing the welding characteristics of the composite steel plate and the nickel-based alloy, the nickel-based alloy contains the Cu component, and the hot cracking easily occurs when the copper is dissolved in the carbon steel. Therefore, the key point of the welding of the composite steel plate is to control the composition of the alloy layer Into the grassroots. Ni-based alloy easy to produce when welding pores and cracks, cleaning and welding before welding line energy is to prevent nickel-based alloy welding defects an effective way.