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Dainetsu Co., Ltd. primarily conducts heat treatment of material products at its headquarters factory and Kochi factory, as well as at the Minato factory, which performs heat treatment of finished products, operating 24 hours a day across three factories. We handle everything from handheld products to long products, responding carefully to requests from one piece. Additionally, we have a robust quality assurance system in place, supported by comprehensive inspection equipment and strict inspection standards based on our company regulations. We provide suitable heat treatment methods tailored to customer needs based on over 500,000 heat treatment data entries. 【Strengths】 ■ Support for heat treatment from material to finished products, starting from one piece ・Quenching and tempering: capable of handling single weights up to 16 tons ・Stress relief annealing: capable of handling single weights up to 35 tons ■ Stable quality assurance system ■ Correction capability for diameters up to φ400 ■ Excellent carbon prevention technology facilitates post-processing *For more details, please refer to the PDF materials or feel free to contact us.

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At Dainec Co., Ltd., we perform "heat treatment processing." Quenching and tempering are conducted to bring out the high hardness and strength of steel. Quenching alone can make it hard but brittle, so tempering is carried out to enhance toughness. We also perform complete annealing to adjust the metal structure and achieve softening, as well as normalizing and solution treatment. 【Features】 ■ Quenching and tempering: Tempering is also performed to enhance toughness. ■ Complete annealing: Achieves adjustment of the metal structure and softening. ■ Stress relief annealing: Removes residual stress. ■ Normalizing: Uniformizes the metal structure, refines grain size, and improves machinability. ■ Solution treatment: Dissolves carbides precipitated in austenitic stainless steel. ■ Oxidation-free quenching: Prevents the adhesion of oxide films to the surface of steel and the loss of surface carbon. *For more details, please refer to the PDF document or feel free to contact us.

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Dainetsu Co., Ltd. is a metal heat treatment processing company with three factories: the headquarters factory and Minato factory in Sakai City, Osaka Prefecture, and the Kochi factory in Kochi Prefecture. At our headquarters factory, we handle a wide range of heat treatment processes for steel materials, including quenching and tempering, annealing, normalizing, and solution treatment, accommodating items from small parts to those exceeding 15 tons. Additionally, at the Minato factory, we perform surface heat treatments such as oxidation-free quenching and tempering using an all-case atmosphere furnace, gas carburizing, and carburizing nitriding, as well as shot blasting. At the Kochi factory, we can handle general heat treatment processes for steel materials, including quenching and tempering, annealing, normalizing, and solution treatment, accommodating large diameter rings up to φ2700. [Business Activities] ■ General metal heat treatment processing [ISO Certification] ■ ISO 9002 certification obtained ■ ISO 9001 certification obtained *For more details, please download the PDF or feel free to contact us.

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The "Metal Terminology Collection" is a catalog from Dainetsu Co., Ltd. that provides high-quality heat treatment technology tailored to your needs, ensuring reliability for safe use. It clearly summarizes and explains terms related to metals, such as hardenability, aging changes, and shot blasting. [Terms Included] ■ Mass Effect ■ Residual Stress ■ Work Hardening ■ Effective Hardened Layer Depth ■ Brittleness, etc. *For more details, please download the PDF or feel free to contact us.

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Dainetsu Co., Ltd. is a metal heat treatment processing company with three factories: the headquarters factory and Minato factory in Sakai City, and the Kochi factory in Kochi Prefecture. We handle products such as large components for construction machinery, machine tools, wind power generation, and automotive parts, specializing mainly in heat treatment of large items. In recent years, we have developed heat treatment equipment equipped with mist cooling and have received numerous high evaluations from government agencies such as the Ministry of Economy, Trade and Industry and Osaka Prefecture. [Factory Overview] [Headquarters Factory] ○ General heat treatment of steel shape materials → Quenching and tempering, annealing, normalizing, solution treatment, etc. → Wide range from small items to over 15 tons in single weight [Minato Factory] ○ Oxidation-free quenching and tempering using all-case atmosphere furnaces, gas carburizing, surface heat treatment such as carburizing and nitriding, shot blasting [Kochi Factory] ○ General heat treatment of steel shape materials → Quenching and tempering, annealing, normalizing, solution treatment, etc. → Capable of handling large diameter rings up to φ2700 For more details, please contact us or download the catalog.

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