Industry News

A recent study examined underwater local dry TIG welding of 304L stainless steel under different pressure and humidity conditions. Using 6 mm thick 304L stainless steel, researchers tested TIG lap welding in a specially designed pressure vessel. The results showed that suitable welding parameters can produce smooth and clean welds without obvious cracks, pores, or inclusions. Pressure had a strong effect on weld penetration, while humidity had a stronger effect on weld width. The study also found changes in weld microstructure, hardness, and tensile strength as pressure and humidity increased. These results provide useful data for underwater welding applications. 

See our partner’s real-world submerged arc welding application, featuring stable welding performance and consistent results for steel fabrication.

Learn how to choose the right NBM welding machine for aluminum and aluminum alloys, with key factors including welding current, wire feeding, arc stability and duty cycle.

RSN-1250 is a high-performance IGBT stud welding machine designed for fast and reliable short-cycle stud welding. With 1250A welding current, DSP digital control, and stable welding performance, it is an ideal solution for steel structures, machinery manufacturing, shipbuilding, and other industrial applications.

Welding productivity is becoming increasingly important in modern manufacturing. Discover how high-duty-cycle welding machines and advanced welding technologies can help improve efficiency, stability and overall production performance.

Morrow Welding Development Co., Ltd. makes and sells welding power sources. The company serves steel, shipbuilding, petroleum, and metallurgy industries. It has stable markets in Europe, America, Asia, and the Middle East. Choosing the right welding process is important for good results. MIG welding works well for thin to medium steel. It gives high speed. TIG welding gives clean and precise welds. It works for stainless steel and aluminum. SAW welding gives deep penetration and high deposition. It is good for thick plates. Stick welding is simple and portable. It works outdoors. Morrow Welding has 21 series and over 100 products. It helps customers pick the best process for their work.

Morrow Welding recently provided its advanced SAW welding machine solution for a large Chinese enterprise. The application shows the stable performance and reliable welding ability of MZ7 Series of IGBT Inverter Submerged Welding Machine in heavy industry. The SAW welding machine is designed for middle and thick steel structure welding. It offers high welding current, stable arc performance, and easy operation. With advanced inverter technology, the machine improves welding efficiency and reduces energy consumption. It is widely used in industries such as steel structure, shipbuilding, pressure vessels, boilers, and petrochemical projects. Morrow Welding continues to provide professional welding power solutions for customers in Europe, Asia, the Middle East, and other markets.

Learn how weld reinforcement affects welding quality and how proper control methods help achieve stronger and more reliable welds.

Steel structures are widely used in construction, shipbuilding, and industrial manufacturing due to their high strength, lightweight design, and fast installation. This article explains the key advantages of steel structures and highlights the importance of reliable welding technology for safe and efficient steel fabrication.

Learn about common welding defects, including surface and internal defects, their causes, and how proper welding processes can improve weld quality and reliability.