[Technical Data] Coating Technology Contributing to the High Performance of Resins

The resin being molded has become high-performance and multifunctional, and the release properties, wear resistance, and corrosion resistance of molds, which are often subjected to harsh environments, have been improved through functional coating technology.

Our company’s functional surface treatment technology, "Protonics System (R)," which encompasses over 100 types, obtained trademark rights in 1990. Here, we introduce coating, micro-blasting technology, coating properties, and representative improvement examples. 【Improvement Examples】 ○ Improvement of release properties and non-stickiness By applying it to mold product sections, gates, sprues, etc., release properties and fluidity are enhanced. ○ Improvement of sliding properties and wear resistance By applying it to mold sliding parts, ejector pins, sleeves, etc., the sliding properties and wear resistance between metals are improved. ○ Improvement of wear resistance and fluidity By applying it to gate sections, nozzle inner diameters, etc., wear resistance and fluidity due to filler-containing resins are enhanced. ○ Improvement of corrosion resistance By applying it to molds and related parts, corrosion resistance against gases generated from molding materials is improved, and applying it to cooling water holes stabilizes the cooling effect. ○ Improvement of corrosion resistance in mold cooling holes Surface treatment is applied only to the cooling water channels of the mold, contributing to increased mold lifespan and stabilization of molding conditions. ○ Build-up and dimensional adjustment Precise build-up adjustments of several tens of micrometers for burr prevention and dimensional adjustments can be performed with the coating. 【For more details, please refer to the download.】

basic information

Release properties refer to the characteristic of not causing adhesion or burning on the surface, and it is also called non-stick properties. The reason why frying pans and hot plates coated with fluororesin do not stick is due to this property. - Before: In medical PE resin molding, defects due to mold corrosion had become a problem. → After: Mold corrosion has been eliminated, allowing for continuous molding. - Before: In PP resin injection molding core pins, poor release properties led to frequent defects due to deformation. → After: Release properties have dramatically improved, and deformation defects are now nonexistent. Currently in mass production with 200,000 shots and no maintenance. - Before: In silicone rubber injection molding, poor release properties required the use of release agents and manual air blowing for demolding. → After: Demolding is now possible without release agents and without air blowing, resulting in a 50% improvement in production efficiency. As shown above, this leads to reduced maintenance and increased processing capacity, providing significant benefits. [For more details, please download the catalog or feel free to contact us] *Published content from Nikkan Kogyo Shimbun, Mold Technology, Volume 29, Issue 8.

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Applications/Examples of results

- Core pin for PP resin injection molding - Silicone rubber injection molding - Torch nozzle for robotic welding - Urethane rubber molding - Extrusion screw for resin pellet recycling equipment - Mold for silicone rubber molding - Heat welding mold for office supplies - PE resin injection molding