We provide high-quality surface treatment that removes fine irregularities, welding discoloration, and burrs, combining gloss and cleanliness.
Toyo Rika Chemical Co., Ltd.'s electro-polishing is a surface treatment technology that achieves a high-smoothness and high-gloss finish by electrolyzing the metal surface in an electrolyte solution and selectively dissolving fine protrusions. It does not require physical polishing processes like buffing, allowing for uniform and highly reproducible treatment. This technology removes surface irregularities, burrs, and welding discoloration, providing not only aesthetic beauty but also practical effects that prevent dirt adhesion and corrosion. Furthermore, a strong oxide film is formed after treatment, enhancing the corrosion resistance of the metal and maintaining high quality over an extended period. Our company supports various stainless steel parts, including SUS304 and SUS316, and has a proven track record in various industries such as semiconductor manufacturing equipment parts, medical devices, food machinery, analytical instruments, and precision parts for research applications. We have established a system to provide high-quality finishes with short lead times for products that require cleanliness, durability, and aesthetics. Our high-precision, high-quality electro-polishing is the ideal solution for companies looking to enhance the added value of their products.
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basic information
Compatible materials: SUS304, SUS316, SUS316L, duplex stainless steel, other stainless steels Compatible shapes: pipes, sheet metal parts, chambers, piping, complex shapes, inner surface treated products, etc. Surface roughness (Ra) target value: Ra 0.02μm to 0.2μm (varies depending on material, shape, and application) Processing purpose: glossy finish, smoothing, burr removal, weld burn removal, improved cleanliness, enhanced corrosion resistance Processing method: anodic treatment using a dedicated electrolyte (fixture mounted or suspended processing) Dimensional change: minimal (in micrometers), items requiring management can be pre-adjusted and fixture fixed Applicable areas: external surface / internal surface / full surface treatment available (specific area designation possible) Post-treatment finish: high gloss, uniform finish, formation of oxide film (Cr-rich layer) Quality control items: surface roughness measurement, appearance inspection, dimensional measurement, photographic records, particle checks, etc. Traceability support: available (lot number, processing condition records, inspection record storage, shipping report support, etc.) Optional support: clean room compatibility / vacuum packaging / identification marking / inspection certificate attachment, etc. Remarks: Pre-test support available for special materials and shapes, fixture design and prototype support also possible.
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Applications/Examples of results
【Target Industries】 Semiconductor manufacturing / Medical devices / Food machinery / Analytical equipment / Aerospace / Research institutions, etc. 【Target Product Names and Parts】 Chamber parts made of SUS316L, gas supply pipes, nozzles, tweezers, heat exchangers, etc. 【Processing Objectives】 Improvement of corrosion resistance, enhancement of cleanliness, reduction of particles, improvement of aesthetics, burr removal, removal of welding discoloration, etc. 【Finishing Requirements】 Ra 0.02μm or less, emphasis on gloss, degreased finish, etc. 【Lot Size and Quantity】 Small quantities of various types, large quantities of few types, capable of handling both large and small sizes.
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Company information
Toyohashi Chemical Co., Ltd. is a comprehensive technology company that consistently responds to a wide range of needs, from contract processing to the manufacturing of surface treatment agents and processing equipment, the development of automatic inspection devices, and even technical consulting, as a leading company in metal surface treatment. We have established a consistent production system utilizing precise electro-polishing and cleaning technologies, vacuum packaging and assembly in clean rooms, and advanced processing techniques. We have gained high trust in fields where quality is essential, such as semiconductors, medical devices, and food-related equipment. As a partner that responds to all surface treatment challenges with technology and flexible adaptability, we continue to support our customers' manufacturing endeavors.
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