Oxide Suppression Furnace - Aluminum Melting Holding Furnace - SMH Series
Contributes to improving work efficiency in aluminum casting sites for automotive parts and others. Reduces the occurrence of oxides and significantly decreases the tedious cleaning of the holding chamber. (About once every six months to a year!)
Oxide Suppression Furnace: SMH Series (Aluminum Holding Melting Furnace / Aluminum Central Melting Furnace) 【Features】 ◇ Maintains a low atmosphere temperature in the holding chamber (below 800°C) and keeps the residual oxygen concentration below 1%, utilizing the protective effect of the aluminum oxide film to slow down the progression of oxidation with a new furnace structure. ◇ Equipped with a newly developed flat frame burner to prevent agitation of the molten surface without directly applying flame to the molten metal in the holding chamber, and incorporates a heat exchanger utilizing exhaust gas for energy savings (a hybrid version using electric heaters is also available). ◇ To significantly enhance forced convection heat transfer from the matching of the furnace structure, it is equipped with a newly developed melting burner that considers flame length, flame diameter, and flame speed. 【Expected Effects】 (Compared to our conventional furnaces) By using the oxide suppression furnace... ○ Reduction in the frequency of cleaning the holding chamber (proven to be unnecessary for up to 1 year) ○ Elimination of flux treatment (may be performed in the melting chamber depending on the amount of dross) ○ Improvement in molten metal quality (reduction of hydrogen gas and inclusions in the molten metal) ○ Increased yield due to reduction in material loss ○ Improved fuel efficiency through energy savings from waste heat recovery in the holding chamber ○ Improved working environment due to reduced furnace surface temperature
basic information
【SMH Series】 Model / Melting Capacity / Holding Capacity SMH-100 100kg/h 500kg SMH-150 150kg/h 700kg SMH-200 200kg/h 870kg SMH-300 300kg/h 1200kg SMH-400 400kg/h 2000kg SCM-500 500kg/h 2500kg SCM-750 750kg/h 3200kg SCM-1000 1000kg/h 4000kg SCM-1200 1200kg/h 5000kg SCM-1500 1500kg/h 6000kg We also offer a decarbonization type equipped with a hydrogen gas burner. There is a test machine available at the Thermal Technology Research Institute, so please feel free to contact us.
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Model number/Brand name
SMH
Applications/Examples of results
【Purpose】 Melting and holding of aluminum (non-ferrous metal) On-site melting furnaces, centralized melting furnaces, aluminum industrial furnaces 【Track Record】 Numerous achievements in Japan as well as in China and Southeast Asia (Vietnam, Thailand, etc.). *For specifications and details, please contact us.*
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Conducting aluminum melting tests using a hydrogen gas burner! (March 2024)
At Seiying Manufacturing, we are working on the development of aluminum industrial furnaces that can contribute to achieving carbon neutrality and a decarbonized society. Recently, we conducted aluminum melting tests using hydrogen gas burners in collaboration with customers aiming for carbon-neutral manufacturing. For the test furnace, we adopted the "SMH type" melting holding furnace, which generates extremely low amounts of oxides. The heat source consisted of a hydrogen-exclusive gas burner "EIS-H2" for melting and an electric heater for holding the molten aluminum, creating a hybrid configuration. In this melting test, we compared the "melting speed" and "aluminum molten quality" with those of an LPG combustion gas burner that was conducted beforehand. We will continue to analyze the detailed test results. For more details about this test furnace, please refer to the attached materials. Feel free to contact us regarding the implementation of the tests.
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Developed a carbon-neutral aluminum melting holding furnace [Published in the Iron and Steel News, October 23, 2023, Page 5]
"Carbon Neutral Aluminum Melting Holding Furnace Developed by Shoei Manufacturing Co., Ltd." Published in "Steel News, October 23, 2023, Page 5." Shoei Manufacturing Co., Ltd. (Headquarters: Hirano Ward, Osaka City, Representative: Shota Habaki), a specialized manufacturer of industrial gas burners and industrial furnaces, has developed an aluminum melting holding furnace that enables decarbonization in aluminum casting sites, such as those for automotive parts. A new hydrogen gas burner that emits no CO2 during combustion has been adopted for the melting line. By placing high-efficiency immersion heaters in the holding line for the molten aluminum melted by hydrogen combustion, a thermal source configuration that enables carbon neutrality through "hydrogen × green electricity" has been achieved. A test furnace based on actual equipment has been newly established at the Thermal Technology Research Institute. We are accepting visits to observe hydrogen combustion and tests for actual aluminum melting. Amid uncertainties regarding future energy supply, we will contribute to the decarbonization of the manufacturing industry by applying the combustion technology and hybridization technology for thermal sources that we have cultivated so far.
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The hydrogen burner-equipped aluminum melting holding furnace under development has been featured in "Die Casting News."
An article about our company has been published in the Die Casting News. Die Casting News, dated March 30, 2023 "Masahide Manufacturing Co., Ltd. Begins Verification of Hydrogen Gas Dissolution Furnace Development at Research Institute" *Starting in May, we are accepting aluminum melting verification tests using hydrogen gas burners at our newly opened Thermal Technology Research Institute. Please feel free to contact us.
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Challenging Decarbonization Technologies! Introduction to the Thermal Technology Research Institute [Opening on May 8]
We have various test furnaces available, including combustion equipment for hydrogen burners, allowing for thorough testing of energy-saving and low-carbon solutions in production sites together with our customers! Please feel free to contact us through this page. ~Equipment Overview~ ◇ Aluminum Melting Holding Furnace Testing of aluminum melting using hydrogen combustion is possible on a practical basis. The furnace structure suppresses oxidation. - Melting capacity: 150 kg/h - Holding capacity: 800 kg/ch - Melting burner (116 kW), holding heater (9 kW x 2) ◇ QCO Coating Equipment (Coating Booth and Drying Furnace) Testing is possible with four heat sources, accommodating various works. - Gas infrared burner - Gas far-infrared panel - Gas hot air & jet heating - Electric infrared heater ◇ High-Temperature Test Furnace Combustion testing of gas burners using hydrogen and 13A/LPG is possible. Measurement of exhaust gas components and confirmation of flame shape inside the furnace can be conducted. - Internal furnace temperature: Max. 800℃ ■ Fuel Supply 13A (45 MJ/㎥) LPG (100 MJ/㎥) Hydrogen (12.8 MJ/㎥) ■ Test Power Supply Equipment Max. 150 kVA, 200V (Please consult us for other voltages, etc.)
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At Shoei Manufacturing Co., Ltd., we are taking on the challenge of "hydrogen combustion"! In addition, we offer various industrial furnaces such as "design and manufacturing of various original burners," "safety combustion system piping equipment," "food heating," "smoke and odor removal devices," "painting-related and heat treatment" equipment, as well as aluminum industrial furnaces like "melting furnaces and holding furnaces." Please also consult us about our self-developed energy-saving burners and "hybrid heating" that utilizes the unique characteristics of both "gas" and "electricity."