Application of Fine Particle Bombarding to Power Transmission System for Food Machinery

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  • 食品機械用動力伝達系への微粒子投射処理の適用
  • ショクヒン キカイヨウ ドウリョク デンタツケイ エ ノ ビリュウシ トウシャ ショリ ノ テキヨウ

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<p>With the aim of providing long service life and noise reduction of drivetrain components such as gears, various materials have been developed and various type of heat treatment and surface modification has been applied. Fine Particle Bombarding, which is one of the surface modification methods, has been widely used due to excellent fatigue properties by introducing compressive residual stresses, and due to low friction properties by creating surface profile. As for automotive drivetrain components etc., besides material-related development, lubricants and additives have a huge effect on properties above, and therefore, it is becoming important to investigate regarding the combination of surface modification methods, lubricant and additive technology. On the other hand, concerning food machinery, there are many regulations that enable securing food safety. Above all, in Japan it was mandated for food-related business operator to introduce HACCP (Hazard Analysis and Critical Control Point) systems-compliant sanitary management system from June 2020. And powertrain components of the food machinery such as gears are made of stainless steel for rust prevention. Furthermore, as lubricants and additives for them, only the NSF H1-certified lubricants and the FDA (U.S. Food and Drug Administration)-approved additives are allowed to be use. This paper describes a new hybrid technique utilizing Fine Particle Bombardment process and DLC (Diamond-Like Carbon) coating process, which improves sliding properties and anti-seizing properties under the restricted conditions of food machinery noted above.</p>

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