Due to the ample temperature range, it is possible to completely remove impurities, including areas where the temperature is less likely to rise.
To promote crystal growth without allowing hydrogen molecules to enter the grain boundaries, a high vacuum environment was necessary. Additionally, to achieve secondary recrystallization of potassium-doped tungsten, it was also required to heat the workpiece itself to over 2000°C. As a result, we developed the equipment in-house. The first model achieved a work temperature of up to 2000°C, and the subsequent third model reached up to 2800°C. This equipment is utilized not only for the manufacturing of halogen lamp components but also for various manufacturing processes that require ultra-high temperature treatment. In particular, it has become indispensable for the removal of strong impurities, such as alumina for medical components and electrodes for ultra-high pressure mercury lamps. *For more details, please refer to the external link page or feel free to contact us.
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Yakeshi Electric Co., Ltd. is a specialized group in rare metals and tungsten. Our strengths lie in "speedy and flexible" service, and we are dedicated to manufacturing with a sincere commitment to customer satisfaction. We do not offer "standard products" or "catalog items"; instead, we have created hundreds of thousands of products primarily focused on precision processing of tungsten and high-melting-point metals, almost all of which are made-to-order and made in Japan. Please feel free to contact us with your requests.