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45°Cold Zone W TypeSilicon Molybdenum Rod
Volume Density | Anti-fold Intensity | Vickers Hardness | Porosity | Water Absorption | Heat Stretch
|
5.5g/cm3 | 15-25kg/cm3 | (HV)570kg/cm2 | 7.4% | 1.2% | 4% |
Chemical Properties
Under the high temperature oxidation atmosphere, the surface ofMoSi2 heating rod will generate the quartz protective covering toprotect molybdenum rod from continuing to oxidate. When thetemperature is more than 1700°C, the quartz protective coveringmelts and the MoSi2 element continue to use, the quartz protectivecovering regenerates. MoSi2 heating rod is not suitable to beexerted in the temperature from 400°C to 700°C. Otherwise, theelements will be effloresced astributing to the intense lowtemperature oxidation.
The Using Temperature Under the DifferentAtmospheres
Atmosphere | The Maximun Using Temperature of Elements | |
1700 | 1800 | |
No2 ,Co2 ,O2,Air | 1700°C | 1800°C |
He ,Ar ,Ne | 1650°C | 1750°C |
So2 | 1600°C | 1700°C |
CO ,H2 | 1500°C | 1600°C |
Wet H2 | 1400°C | 1500°C |
Dry H2 | 1350°C | 1450°C |
45 Degree Cold Zone W Type Silicon Molybdenum Rod
