We would like to introduce a coating that has been revitalized for the rotary joint as a wear prevention measure for the lip seal area!
A lip seal (also known as an oil seal) is a sealing component primarily used to prevent oil and grease from leaking through gaps in rotating shafts or reciprocating shafts. The lip seal wears down due to external environmental factors such as the degradation of lubricating oil, the effects of moisture and chemicals, as well as lubrication and temperature factors. Here, we introduce a case where ceramic thermal spraying was used to solve such wear issues. ■Challenge We want to implement measures against wear in the lip seal area. ■Proposal We propose coating with a compatible ceramic to extend its lifespan. ■Effect The durability increased to more than twice that of conventional seals, which was greatly appreciated.
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**Achievements** ■ Chemical plants: Shaft, sleeve, plunger, sliding parts of mechanical seals ■ Semiconductors and LCDs: Covers, rings, thermal spraying on quartz, shower plates ■ Steel and metals: Wire drawing machine parts, flingers, rolling shafts ■ Film: SCR, RA, WC, OAT ■ Automotive: Piston heads, hardened coils ■ Beverages: Filler machine parts, filler machine components, guides
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【Types of Thermal Spraying by Nippon Coating Industry】 ■ Low-Pressure Thermal Spraying ■ Plasma Thermal Spraying ■ High-Velocity Flame Spraying ■ Arc Thermal Spraying ■ Thermal Spraying 【Materials for Thermal Spraying】 ■ Rod-Type Thermal Spraying Materials ■ Oxide-Based Thermal Spraying Materials ■ Carbide-Based Thermal Spraying Materials ■ Metal and Alloy Thermal Spraying Materials ■ Self-Fusing Alloy Thermal Spraying Materials
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NCI introduced the core technology of the ceramic thermal spraying, the Low-Cry process, in Japan for the first time, and for half a century, it has supported rocket development. NCI has consistently pursued the Low-Cry process, leading and evolving ceramic thermal spraying. Thanks to the know-how of the Low-Cry process, it is possible to provide outstanding functions and quality, such as plasma, hybrid, high-speed flame, and surface patterns. NCI's thermal spraying technology is widely utilized in advanced technology fields, offering high-quality solutions unique to NCI.