日本コーティング工業 本社、大阪営業所、東京営業所、関西工場、東京工場 Official site

In the film sheet stretching process, even minor scratches on the roll surface are not permitted. Therefore, the "polishing" of the surface of the stretching roll becomes very important, and a high hardness that makes it difficult to scratch is required. We will introduce a case where our ceramic thermal spraying has solved this problem by improving wear resistance, reducing the transfer of scratches on the roll surface to the film, and enhancing release properties. ■Challenge To eliminate the transfer of scratches from the roll surface to the film and further improve wear resistance for longer usage. ■Proposal To improve wear resistance with a high hardness coating from ceramic thermal spraying, provide surface roughness polishing (from sub-mirror to super mirror) using NCI's unique finishing technology, and since recoating is possible after use, we proposed that we can finish and provide a reproducible surface roughness multiple times. ■Effect The lifespan was extended, the repair cycle became longer, maintenance costs were significantly reduced, and it contributed to increased productivity, which was greatly appreciated.

【Types of Thermal Spraying by Nippon Coating Industry】 ■ Low-Pressure Thermal Spraying ■ Plasma Spraying ■ High-Velocity Flame Spraying ■ Arc 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

**Achievements** ■ Chemical Plant: Shaft, sleeve, plunger, sliding parts of mechanical seals ■ Semiconductor & LCD: Covering, thermal spraying on quartz, shower plate ■ Steel & Metal: Wire drawing machine parts, flinger, rolling shaft ■ Film: SCR, RA, WC, OAT ■ Automotive: Piston head, hardened coil ■ Beverage: Filler machine parts, filler machine parts, filler machine parts, guide