2012年4月24日星期二

Reasons for using tungsten alloy ball counterweights



The high proportion of tungsten alloys, including high-density alloy, it is made of nickel, copper, cobalt, molybdenum and chromium, tungsten matrix (W content is 85-99%). This is the so-called high-density alloy, because its density is as high as 16.5 ~ 19.0g/cm3. It also has a high proportion of high-intensity ray absorption ability, high thermal conductivity coefficient of thermal expansion, good electrical conductivity, and good weldability and workability characteristics, the proportion of which is usually 16.5 to 18.75g/cm3; tensile strength of 700 to 1000 MPa; ray absorption capacity was 30-40% higher than the lead; five times the thermal conductivity of mold steel; and one-third of the coefficient of thermal expansion. In view of its outstanding features, high-density alloy is widely used in various industries.

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