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High temperature components, silicon molybdenum rods
The Hao-M elements is a dense cermet material consisting of molybdenum disilicide(MoSi2) and a glassy phase silicon dioxide(SiO2). They can be operated at element temperatures up to 1800℃ in oxidizing atmosphere.
The elements are U shaped and are most frequently used suspended with the bottom of the “U” down.The element consists of two cold ends(Lu) and a U-shaped hot section(Le). The cold ends are twice the diameter of the hot section and are attcched by a weld.The extremities of the cold ends are metalized with aluminum to provide a low-resistance contact surface to which the electrical connections are made with flat braided aluminum straps.
The Hao-M elements are described by the grade HM-3/6,the diameter of the hot section, the diameter of the cold end,the length of the cold end(Lu),the length of the hot zone(Le) and the distance between the two legs(a). The dimensions are in millimeters(mm).Example:HM-3/6 3/6 Lu=150 Le=180 a=25 completely describes the element.
The Hao-M element is a resistance type heating element that converts electrical energy to heat energy.
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