With 32 Years of In-Depth Engagement in Fluoromaterials, Jiangsu RANA Builds a Solid Foundation for Ultra-Clean Welding in High-End Manufacturing with PFA Welding Rods

Founded in 1994, Jiangsu Rana Fluorine Material Technology Co., Ltd. has been rooted in the fluoromaterials sector for 32 years, focusing on the R&D and manufacturing of semiconductor-grade and electronic-grade PTFE, PFA, and ECTFE fluoromaterial products. It has grown into a leading supplier of core equipment including fluorine-lined mobile tank trucks, fluorine-lined storage tanks, and fluorine-lined pipes and fittings.

As high-end manufacturing imposes higher requirements for corrosion resistance and ultra-clean performance of fluid systems, the company takes PFA welding rods as its core technology, breaks through the key links of fluoroplastic welding applications, and provides reliable fluid storage and transportation solutions for semiconductor, new energy, pharmaceutical and other fields. PFA (perfluoroalkoxy vinyl ether copolymer) welding rods, commonly known as fusible PTFE welding rods, are the core consumables for hot-melt connection of fluoroplastic systems. They are extruded from copolymer resin of tetrafluoroethylene and perfluoroalkyl vinyl ether. Different from traditional metal welding rods, they are specially designed for fluoroplastic welding. Its molecular main chain is composed of carbon-fluorine bonds (bond energy 485kJ/mol, far higher than that of ordinary carbon-hydrogen bonds), and its side chain is perfluoroalkoxy group, which combines the corrosion resistance of PTFE and the melt processability of thermoplastic materials, completely solving the industry pain point that PTFE cannot be directly hot-melt welded.

Jiangsu RANA's supporting PFA welding rods have two mainstream forms: round welding rods with a diameter of 3~5mm, suitable for welding of fine parts and small-diameter pipes, with controllable molten pool filling and beautiful forming; flat welding rods cover specifications such as 14×2.5mm and 17×2mm, suitable for large-area plate joints and large-diameter pipeline butt joints, with construction efficiency improved by more than 40% compared with round welding rods, which can meet the construction needs of different scenarios. At present, the high-end market is dominated by products from well-known overseas manufacturers, while domestic brands have achieved performance benchmarking with significant cost-performance advantages. Jiangsu RANA relies on its technical accumulation to promote the localization application of PFA welding rods.

As an in-depth participant in the domestic fluoromaterial industry, Jiangsu RANA has built an industry-leading PPB/PPT level dust-free workshop, focusing on the production of semiconductor-grade fluoromaterial products. The PFA welding rod welding process matched with its fluorine-lined equipment can achieve extremely low metal ion precipitation at the welding joint, no plasticizer and low molecular volatile release, fully meeting the ultra-clean process requirements of semiconductor wet etching, cleaning and development processes, and effectively avoiding the risks of wafer contamination and electrostatic damage to components. Industry experts said that the rise of the domestic semiconductor industry has driven a surge in demand for ultra-clean fluoromaterial welding consumables. Based on 32 years of technical precipitation, Jiangsu RANA takes PFA welding rods as the link, builds the full-chain capability of R&D, manufacturing and welding application of fluoromaterial products, provides an overall "corrosion resistance + ultra-clean" fluid transportation solution for high-end manufacturing, and helps the independent controllable upgrading of the industrial chain.