On June 25, Nanjing Corun Industrial Additives Co., Ltd. independently developed the environmentally friendly metalworking fluid KR-C8930XH, which won the 2026 Ringier Technology Innovation Award. This marks the third consecutive year that Corun has ...
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As gear machining enters a new track of higher precision, higher efficiency, and greener manufacturing, are you still troubled by issues such as burning, oil mist, and allergic reactions? As the “blood” of industrial machine tools, the selection and maintenance of grinding oil is the hidden champion that determines machining quality and cost!
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Zirconium-based conversion coatings (ZrCCs) have emerged as one of the most promising technologies in metal surface treatment in recent years. Owing to their environmentally friendly characteristics—being free of heavy metals and phosphates—ZrCCs have been widely commercialized across the global automotive industry. However, during co-curing with electrophoretic coatings (typically involving heat treatment at 140–180°C), ZrCCs are prone to cracking and even delamination, posing risks to the adhesion and corrosion resistance of automotive multilayer coating systems. This phenomenon has become a critical bottleneck limiting the long-term protective performance of ZrCCs, and its underlying mechanism has remained controversial.
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The launch of Corun KR9988, an environmentally friendly quenching fluid, is a proactive response to this era’s demand, providing a practical industrial solution for comprehensive green transformation.
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As a "Green Industrial Medium System Solution Provider," Kerun (科润) deeply understands that solving these systemic issues requires targeted professional solutions. Therefore, we launched KR-C8799 high-performance metalworking fluid — a cutting fluid specially designed for magnesium alloy machining, aimed at precisely and stably addressing the industry’s pain points. 01. Exceptional Protection, Focused on Magnesium Alloy Machining With excellent corrosion inhibition, it not only effectively prevents surface discoloration of magnesium alloy workpieces like AZ91D and AZ31B during machining and chip removal but also suppresses hydrogen evolution throughout the process, enhancing machining safety at the source. Even at low concentrations, it maintains superior protective performance.
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On May 14, 2026, the Industrial Medium Research Institute of Nanjing Kerun Industrial Medium Co., Ltd. hosted a symposium on magnesium alloy surface treatment technology, welcoming expert teams from the Institute of Metal Research, Chinese Academy of...
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