Ohtama's magnetic annealing technology based on years of experience.
▼Features of Magnetic Annealing and Heat Treatment▼ Permalloy's magnetic properties improve dramatically only after heat treatment. At Ohtama, we have a wealth of heat treatment patterns prepared based on years of experience, tailored to the material and quantity, allowing us to maximize the characteristics of different manufacturers and materials. *For inquiries or consultations regarding magnetic annealing and heat treatment, please use the contact form on our website. We also have materials available. 【Contact Us】https://www.ohtama.co.jp/contact.html 【Download Materials】https://www.ohtama.co.jp/download.html
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basic information
"Annealing" or "tempering" originally aims to soften materials to facilitate homogenization, machining, and plastic processing. However, in the case of permalloy, the main objectives are to improve magnetic properties and to remove or alleviate residual stresses caused by processing (such as pressing, welding, bending, and cutting).
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Applications/Examples of results
【Equipment Owned by Our Company】 - Vacuum Furnace We possess one of the largest magnetic annealing furnaces in Japan. The furnace is maintained in a high vacuum state, and heat treatment is performed at high temperatures while introducing a small amount of hydrogen. It is capable of heat treating large products and a large number of parts at once. - Hydrogen Atmosphere Furnace Heat treatment is performed by flowing hydrogen into the furnace body that has been heated to high temperatures.
Detailed information
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Heat treatment furnace owned by our company.
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Grain structure (top is the cross-section of the material before heat treatment, bottom is the cross-section of the material after heat treatment)
Company information
Ohtama is a specialized manufacturer of magnetic shields made from permalloy. We provide a consistent process of measurement, design, and production! In 2015, the Hachioji Minamino factory was completed and began operations.
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