- Molybdenum pipe, tube
- Molybdenum wire filament
- Molybdenum rod, round
- Molybdenum ribbon foil
- Molybdenum sheet
- Products made of molybdenum
- Copper-molybdenum pseudoplane
Molybdenum rod, round
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High performance molybdenum rod: heat resistance, corrosion resistance, mechanical strength, allow to work effectively in the toughest industrial conditions. The melting point of molybdenum 2620 °C refractoriness, it is second only to tungsten, rhenium, osmium, iridiu. Molybdenum rod retains adequate strength at temperatures of 2000 °C. To 1370 °with its relative thermal strength is higher than that of tungsten. Molybdenum rod is characterized by low coefficient of thermal expansion, high elastic modulus, excellent chemical resistance that allows it to be used even in aggressive environment.
The disadvantage is the high production cost of molybdenum rod. Because of the significant hardness and refractoriness molybdenum difficult technological processing. Production it time-consuming, and obtaining it in its pure form is quite difficult. In normal circumstances, this is not enough technological material.
According to the requirements of GOST rod must not be contaminated with traces of oxides or grease. If molybdenum rod is forged, its surface is permissible following treatment, this does not contradict the T. U. Surface is usually dark gray, without delamination, large burrs, cracks or other similar defects. Rods brand MPR according to the requirements THAT may have a single Burr. Rod comes direct, the allowable deflection of up to 1% of the length. The thickness of the rod marks MK is not more than 11 mm, and brands MPH and MCH more than 15 mm. Permissible 10% deviation from the nominal length of bars. The ends are cut straight, allowed only minor chips. On the surface there can be traces of edits.
Molybdenum rod is designed to work in high temperatures and mechanical loads. It is used for hot working steels pressure (mandrel piercing mills, matrices, presstampa). It produces shapes and terminals of the equipment for casting under pressure of zinc alloys, copper, aluminium. Molybdenum electrode weld heat-resisting and low-alloy steel. The coating of the electrodes with copper or chromium optimizes the welding process. Easier molybdenum and tungsten, although inferior in heat resistance, exhibit a higher specific strength up to t°to 1370 °C in comparison with alloys of tungsten and tantalum. The thinnest molybdenum rod used in electric lighting devices along with the tungsten. Heat-resistant molybdenum wire used as a consumable electrode and stirrers for glass melting in glass production
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