无镀铜焊丝彻底解决了生产过程和使用过程中的铜污染问题。焊丝表面采用特殊钝化技术，表面光洁、防锈能力强，送丝稳定，适用于长时间连续焊接。
无镀铜焊丝广泛应用于煤矿机械、工程机械、船舶、桥梁、压力容器、建筑设施等钢结构的焊接以及低合金的焊接，也可用于薄板、管线钢等的高速焊接。无镀铜焊丝采用调整生产工艺及严格的过程控制，无论是外观还是熔敷金属的各项指标均达到用户使用要求。
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1SLDSJ112 is a fluorine alkali alkaline sintered flux, with gray white circular particles, particle size of 10-60 mesh, and alkalinity of 2.6. It is made from powders such as silicate, carbonate, fluoride, metal oxide, and iron alloy through processes such as balling, low-temperature drying, and high-temperature sintering. The performance of the flux can replace Lincoln's 801 flux in the United States, with beautiful weld formation, smooth surface, no slag inclusion, porosity, and cracks, and good welding process.
SLDSJ601 is an alkaline sintered flux for submerged arc welding of stainless steel and heat-resistant steel, with a particle size of 3.0-0.28mm (10-60 mesh). It is used for direct current welding and welding to the positive rod. Stable arc combustion, easy slag removal, beautiful weld formation, and excellent intergranular corrosion resistance of weld metal.
SLDSJ609 is a fluorine alkali type high alkalinity low hydrogen sintered flux with an alkalinity of about 2.2. The flux is circular particles with a particle size of 2.0-0.28mm (10-60 mesh). Adopting DC power supply, welding wire connected to positive rod, excellent welding process performance, stable arc, excellent slag removal performance, and beautiful welding formation. The weld seam has excellent crack resistance and high low-temperature impact toughness.
SLDSJ603W is a fluorine-alkali alkaline (B ≈ 2.0) sintered flux, with spherical particles and particle size of 2.0-0.28mm (10-60 mesh). It is used for both AC and DC purposes, with stable arc stability, good high-temperature slag removal performance, and strong resistance to porosity. The flux contains deoxidizers and alloying agents, and the weld seam has excellent low-temperature impact toughness.
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