英国锅炉膜式水冷壁所用鳍片管采用焊接结构,扁钢与钢管间用高频感应焊接。鳍片管间采用CO_2气体保护自动焊,并且拔柏葛公司对焊接鳍片管的焊缝进行了疲劳试验。这种方法可不用轧制鳍片管,质量可靠,成本低。此外,英国制造厂的高压容器大多为单层厚壁简体,因为能供应大尺寸厚钢板。其卷板机轧辊长度较短,如Renfrew 的“Fropriep”型三辊卷板机,辊 British boiler membrane wall used by the fin tube welded structure, flat steel and high-frequency induction welding between the pipe. The fin tube is protected by CO 2 gas, and the tensile test is performed on the weld of the welded fin tube by the company. This method does not need to roll the fin tube, reliable quality, low cost. In addition, the British manufacturer of high-pressure vessels are mostly single thick-walled simplified, because it can supply large-size thick steel plate. Its roll length is short, such as Renfrew's “Fropriep” three-roll coiler, roll