Developed a carbon-neutral aluminum melting holding furnace [Published in the Iron and Steel News, October 23, 2023, Page 5]

A test furnace based on actual equipment that uses a hydrogen burner for melting and an electric heater for holding. It is possible to conduct thorough tests for decarbonization in aluminum casting sites together with our customers!

It is possible to conduct aluminum melting tests using hydrogen combustion with ingot input. Please use it to verify the quality of the molten metal and its impact on the products. The melting gas burner employs a hydrogen burner and electric heaters for retention! It is a hybrid furnace that enables carbon neutrality. By exchanging burner components, you can switch between fuel gases (hydrogen/LNG (natural gas)/LPG), allowing for adaptability based on gas supply trends. Additionally, the furnace structure has a high oxide suppression effect, which you can verify in actual operation. We are committed to solving problems in aluminum casting sites and promoting low carbonization. Please feel free to reach out to us. ~Equipment Overview~ Test Furnace: Aluminum Handheld Melting Retention Furnace (Oxide Suppression Structure) Model: SMH-150H2 Melting Capacity: 150kg/h Retention Capacity: Retention Chamber 800kg/ch *Actual effective capacity during continuous melting, specific gravity 2.4 Melting Temperature: 660–680℃ Control Accuracy: ±5℃ ~Heat Source Configuration~ Melting Burner: Hydrogen Combustion Burner 116kW x 1 unit Retention Heater: Immersion Type Electric Heater 9kW x 2 units Fuel Used: Hydrogen (city gas 13A and propane gas are also possible) Power Supply: 200V/60Hz for power, 100V for operation

• Electric furnace

The high-temperature gas burner series now includes a hydrogen combustion specification! It can be used in various industrial furnaces due to its tile top.

The combustion range is large, allowing for stable combustion even with excess air. It is a "hydrogen burner" type using hydrogen as fuel for the high-temperature gas burner "EIS burner." The tile top (castable) can accommodate temperatures up to 1200°C! It supports preheated air up to 300°C. 【Features】 □ Achieves stable combustion and low NOx performance □ Flame shape equivalent to city gas/propane combustion □ Structure with excellent maintenance characteristics □ Simple piping system with direct ignition method You can convert your existing EIS burner to hydrogen combustion by replacing parts, allowing for evaluation tests on the impact on non-heated materials (workpieces), etc. *1 Achievements with conventional gas specifications are available. The H2 model is currently under testing. *2 Piping facilities compatible with hydrogen combustion are required. Please contact us for more details and consultation.

• Drying Equipment
• Heating device
• Industrial Furnace

Introducing the forefront of development! Hydrogen combustion without carbon dioxide emissions! SHOEI is advancing the hydrogen compatibility of its proven in-house burners.

【New Development! Hydrogen Gas Burner Lineup】 ◇ High-Temperature Furnace Hydrogen Gas Burner (EIS-H2) Achieves a wide combustion range and stable combustion Suitable for heat treatment furnaces, melting furnaces, heating furnaces, deodorization devices, etc. ◇ Package Burner (BJ-H2) ◇ Fan-Equipped Package Burner (SP-H2) Provides stable flames even under high furnace pressure conditions, with good operability and maintainability; suitable for low-temperature fields such as drying furnaces, as well as various industrial furnaces like heat treatment furnaces and deodorization devices. ◇ Hydrogen Combustion Recuperative Burner (STBW-H2) Equipped with a waste heat recovery device (heat exchanger), capable of reducing fuel usage by approximately 30% in addition to decarbonization. Developed in collaboration with Tokyo Gas Co., Ltd. and Tokyo Gas Engineering Solutions Co., Ltd.! Suitable for aluminum melting holding furnaces, preheating, heat treatment furnaces, etc. ◇ Hydrogen Combustion Single-End Radiant Tube Burner (TRFH-H2) Indirect heating method utilizing radiant heat With an integrated heat exchanger, the burner efficiency is 75%, achieving high efficiency. ◇ Hydrogen Combustion Duct Burner (SDC-H2) Converts duct burners mounted on hot air generation devices to hydrogen combustion Suitable for various drying furnaces such as painting drying and food drying.

• Drying Equipment
• Heating device
• Industrial Furnace

In the face of uncertainty regarding future energy supply, we are advancing efforts towards high-efficiency "electrification" and "hybridization" based on gas combustion furnaces.

**Electrification of Thermal Equipment** In an uncertain future for energy supply, we are responding to high-efficiency electrification based on proven thermal equipment (combustion furnaces) to offer multiple options to our customers as an industrial furnace manufacturer. □ Our electric hot air generator (AH-E) can be substituted for our gas combustion type, allowing for electrification without significant changes to the equipment layout. **Hybrid Heating of Electric and Combustion Types** We have numerous achievements not only in full electrification of thermal equipment but also in hybrid heating that combines the advantages of combustion types. We address challenges such as "securing green power, reducing costs, and ensuring power capacity" through hybrid solutions with combustion types. In addition to enhancing the efficiency of electric systems, we can also implement energy-saving systems that utilize waste heat for gas burners. By incorporating hydrogen gas burners, we achieve carbon neutrality! **We Conduct Practical Verification Tests** We conduct various heating tests at the newly established "Thermal Technology Research Institute" within the Horyuji Center. Among these, the "QCO Test Facility" allows for heating tests using four different heat sources! We propose thermal equipment suitable for your work using gas, electric, hydrogen, and hybrid heat sources.

• Drying Equipment
• Heating device
• Industrial Furnace

Reduces the occurrence of oxides and significantly decreases the hassle of cleaning the retention 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 concept furnace structure. ◇ Equipped with a newly developed flat frame burner to avoid directly applying flames to the molten metal in the holding chamber, preventing surface agitation, and implementing energy-saving measures through a heat exchanger that utilizes exhaust gas (a hybrid version with electric heaters is also available). ◇ To achieve significant forced convection heat transfer through matching the furnace structure, it is equipped with a newly developed melting burner that considers flame length, diameter, and 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 one year) ○ Elimination of flux treatment (may be performed in the melting chamber depending on dross volume) ○ Improvement in molten metal quality (reduction of hydrogen gas and inclusions in the molten metal) ○ Increased yield due to reduced material loss ○ Improved fuel efficiency through energy recovery from exhaust heat in the holding chamber ○ Improved working environment due to reduced furnace surface temperature

• Industrial Furnace
• Non-ferrous metals
• aluminum

2nd anniversary celebration! Approximately 100 customers attended. Experience the forefront of decarbonization technology, including hydrogen combustion gas burners.

In May 2023, we established the "Thermal Technology Research Institute," and over the past year, we have conducted numerous tests. ~ Test Equipment Overview ~ ◇ Aluminum Melting Holding Furnace This furnace allows for verification tests of "melt quality" and "melting efficiency" through hydrogen combustion melting. It is an actual machine-based aluminum melting furnace. Melting capacity: 150 kg/h Melting: Hydrogen combustion gas burner Holding: Electric heater ◇ Painting Drying Furnace (Testing Equipment) Using equipment that is comparable to actual production sites, tests can be conducted with four different heat sources. It accommodates various types of workpieces. In the fiscal year 2023, we conducted optimization tests of heat sources with approximately 20 customers. ◇ Direct Combustion Deodorization Device (On-site Testing Available) A movable demo unit that can conduct tests using actual odors at customer factories. - Treatable components: VOCs (volatile organic compounds) and various other odors. - Treatment capacity/temperature: Max. 1.0 m³N/min / 760℃ ⚪︎ Hydrogen Combustion Gas Burner As a manufacturer of industrial gas burners, we are advancing the adaptation of our existing lineup to hydrogen. The combustion observation of hydrogen gas burners has been very well received. Experience the forefront of technology development aimed at a decarbonized society.

• Heating device

Contec Co., Ltd. has started selling the "SH-9210TSN," an industrial managed switching hub that has obtained CC-Link IE TSN recommended network wiring component certification Class B. It features dual power supply redundancy, a DC power input, eight gigabit ports, and two SFP slots. The SH-9210TSN complies with IEEE 802.3ab (1000BASE-T), IEEE 802.3u (100BASE-TX), and IEEE 802.3 (10BASE-T) standards, and is designed for use in environments where quiet operation and long lifespan are required due to its fanless design. Additionally, it achieves an operating temperature range of -10 to 65°C thanks to its excellent heat dissipation metal casing. It can be installed on a 35mm DIN rail or mounted on walls using various mounting brackets. In addition to a wide-range DC power input (12-48VDC), it supports input from two power supply lines and includes various managed functions for network management, control, and reliability enhancement.

The "Mechanical Stitching Method" by Nichinichisui Road Machinery Co., Ltd. is a new technique that allows for the repair of metal cracks without the application of heat. By using special bolts and reinforcement plates, cracks are physically removed, and repairs are made without causing any thermal impact on the base material. Repairs can be carried out in environments where open flames cannot be used. Since no heat is applied, the disassembly of equipment is minimized. ◎ For more details, please contact us. ◎ If a detailed technical explanation is needed, please contact us.

The "Mechanical Stitching Method" by Nichinichisui Road Machinery Co., Ltd. is a new technique that allows for the repair of metal cracks without the application of heat. By using special bolts and reinforcement plates, cracks are physically removed, and repairs are made without causing any thermal impact to the base material. Repairs can be carried out in environments where open flames cannot be used. Since no heat is applied, the disassembly of equipment is minimized. ◎ For more details, please contact us. ◎ If you require a detailed technical explanation, please contact us.

The "Mechanical Stitching Method" by Nichinichisui Road Machinery Co., Ltd. is a new technique that allows for the repair of metal cracks without the application of heat. By using special bolts and reinforcement plates, cracks are physically removed, and repairs are made without causing any thermal impact on the base material. Repairs can be carried out even in environments where open flames cannot be used. Since no heat is applied, the disassembly of equipment is kept to a minimum. ◎ For more details, please contact us. ◎ If a detailed technical explanation is needed, please contact us.

The "Mechanical Stitching Method" by Nichinichisui Road Machinery Co., Ltd. is a new technique that allows for the repair of metal cracks without the application of heat. By using special bolts and reinforcement plates, cracks are physically removed, and repairs are made without any thermal impact on the base material. Repairs can be conducted in environments where open flames cannot be used. Since no heat is applied, the disassembly of equipment is minimized. ◎ For more details, please contact us. ◎ If a detailed technical explanation is required, please contact us.