转化器制造质量控制要点

Key Points for Converter Manufacturing Quality Control

转化器制造关键控制点主要为胀接,在胀接过程中必须严格控制胀接压力,避免过胀和欠胀;另外应严格控制管板与换热管的焊接质量,必须采取全焊透的结构,焊缝背面成型应良好,避免产生缝隙腐蚀与电化学腐蚀。

The key control point of the converter is mainly for the expansion, in the expansion process must strictly control the expansion pressure, to avoid overheating and expansion ; also must strictly control the tube plate and the heat transfer tube welding quality, must take full welding Through the structure, the back of the weld should be good, to avoid crevice corrosion and electrochemical corrosion.