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HEATING ENERGY @ WORK | |
April 19, 2007 Issue 2 |
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ENERGY SPURTS : |
| A growing presence in North America Our activities in North America and Mr. Joe Martin’s terrific job in building Electrotherm’s presence in the United States has quickly bared fruit. In the fourth quarter of 2006, we were awarded new orders for our compact electrically heated rotary hearth furnaces reflecting a growth trend in the orthopedic forging industry. Faithful to our commitment to quick delivery, these orders have already been shipped, installed and commissioned in Q1-07. The Compact rotary hearth furnaces are available in 4 hearth diameters: 1 meter, 1.2 meter, 1.6 meter and 2 meters. For more information about the Compact Rotary Hearth furnaces, e-mail jmartin@electrotherm.co.il or loraine@electrotherm.co.il |
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| A double deck rotary hearth oven for the preheating of Al alloy parts is installed and commissioned to a leading European manufacturer of components for the international aero engine and power generation industry.
The rotary hearth oven is a double deck design for the preheat treatment of aluminum parts at a temperature up to 550°C (1022°F). The design took into account the valuable advantage of small footprint in the forging shop. The oven has two ventilated rotary tables with a height difference of 250mm, heated with tubular heating elements and hot air circulation system. A gear motor with torque limiter rotates the tables. The oven sits on 3 wheels for mobility and is equipped with 3 adjustable jacks to stabilize oven in the desired position. Call Tal Lahav at +972 52 473 2171 or email tal-l@electrotherm.co.il |
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| EFRS-250 Fluxless Magnesium Alloy Recycling system sold to an Asian Thixo moulding manufacturer of electronic products. Electrotherm was awarded the tender for a Magnesium alloy fluxless, non chlorine recycling system. The system was developed in collaboration with the Technion: Israel Institute of Metals, DSM, and the Magnesium Research Institute (MRI). It consists of a preheat conveyor, two processing furnaces and an ingot casting conveyor. The system is designed for a capacity to recycle an annual scrap quantity of 1000 tons. |
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NEW PROJECTS & PRODUCTS |
Heating oven for polyethylene nets Electrotherm was selected by a global plastics manufacturer as partner in the development and design of a special heating oven for polyethylene nets used in the agricultural industry. The prototype completed and the technology proven, in the first stage it was agreed that 10 units will be delivered in 2007 and additional units in 2008. This type of project is indicative of our capabilities in the heat process equipment industry and our readiness to cooperate with our customers to assist in improving the efficiency of existing processes. This specific process is proprietary to the contracting customer. An industrial Ohmic heated steam heater The Ohmic heated steam heater is a critical and integral part of the plasma reactor based on the thermal treatment technology for environmentally friendly disposal of waste materials. The Ohmic heating method allows the transfer of low voltage (about 20V) electric energy to the heated product. This method is highly attractive due to the flexibility of the solution, while ensuring high safety levels. The planning and design of the heater integrate the required minimum dimensions respecting the constraints in the field. The steam temperature inlet is about 300°C (572°F), the temperature difference between steam inlet and steam is 700°C (1292°F) minimum. The maximum Outlet temperature is 1000°C (1832°F) with a steam output: 35 kg (77 lb)/hr. The sheet metal on the walls is arranged to allow quick dismantling and provide access to the internal insulated Inconel coil. Thermal insulation of rock wool and ceramic wool on the walls with a total thickness of 250 mm allows normal functioning with minimum heat losses. The coil has an inlet and outlet with flange connections, to connect to the steam piping. Electrolytic copper bus bars adjusted to a current of 1800A connect the transformer and special Inconel contacts on the pipes, and heat the coil pipes. By way of heat transfer with the steam flowing in the pipes, a steam temperature at coil outlet of up to 1000°C is achieved. |
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