The original characteristics of high-frequency quenching treatment can also be achieved with small diameter round bars such as φ3.
When high-frequency hardening is applied to φ3SUJ2 (bearing steel), it is very difficult to achieve the characteristics of high-frequency hardening, where the surface is hard and the core remains tough, using existing equipment. This is because the small diameter allows heat to affect the core, resulting in full hardening. However, with the 'μ high-frequency hardening treatment' developed by Marushin Heat Treatment Industry, it is possible to achieve the original characteristics of high-frequency hardening, where the surface is hard and the core remains tough, even for small diameter round bars like φ3. 【Test Piece Measurement Results】 ○ Hardness Comparison → Oil-quenched product: Hardened to the core → μ high-frequency hardened: Forms a hard layer of about 0.5mm, core remains tough ○ Bending Test Results → Oil-quenched: Fractured at 500N → μ high-frequency product: No fracture ○ Product Characteristics (※ Runout at product acceptance: approximately 0.02-0.04mm) → Oil-quenched product: Runout of about 0.3-0.4mm → μ high-frequency product: Runout of about 0.15-0.3mm For more details, please contact us or download the catalog.
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basic information
【μ (Micro) High Frequency】 ○ A unique new technology developed by Marushin Heat Treatment Industry ○ Uses a frequency that is even higher than those used in conventional high-frequency induction heating ○ High-frequency induction heating treatment that can form a thin hardened layer on the surface of steel materials ○ Enables heating treatment on surface layers of small diameter round bars, which was previously difficult ○ μ High Frequency has advantages in terms of deformation and bendability ● For more details, please contact us or download the catalog.
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Company information
Marushin Heat Treatment Co., Ltd. possesses one of the largest heat treatment facilities for batch processing of carburizing, quenching, and tempering. In our vacuum furnaces, we cater to all heat treatment needs, from mass-produced items to single pieces, including heat treatment of stainless steel and mold materials, as well as ferrous and non-ferrous metals. Steel materials are utilized in various ways in our daily lives. The mission of heat treatment is to create the performance and properties suited to each specific purpose of these steel materials, playing an important role in adding value to individual products. By bringing out the characteristics of steel materials through heat treatment, we aim to contribute to the advancement of manufacturing. In today's society of mass production and consumption, we have aspired to grow together with the local community since our establishment, placing great importance on "individual customers." This philosophy will remain unchanged as we continue to provide heat treatment that ensures customer satisfaction, while consistently focusing on "stable quality" and "shortest delivery times," striving to build a company that can accurately respond to requests.