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High Purity 99.95% Molybdenum Electrode Rod For Glass Electric Melting Furnace

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Shaanxi Peakrise Metal Co.,Ltd
City:baoji
Province/State:Shaanxi
Country/Region:china
Contact Person:MrsNicole
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High Purity 99.95% Molybdenum Electrode Rod For Glass Electric Melting Furnace

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Brand Name :PRM
Model Number :custom
Certification :ISO9001
Place of Origin :China
MOQ :1kg
Price :$50~150/kg
Payment Terms :T/T
Supply Ability :2000kgs/month
Delivery Time :10~15work days
Packaging Details :plywood case
Name :High Purity 99.95% Molybdenum Electrode Of Glass Electric Melting Furnace
Material :Pure Molybdenum
Purity :min.99.95%
Shape :rod
Diameter :4~120mm
Length :<1500mm
Surface :Bright,polished
Export port :Any port in China
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Molybdenum Electrode Of Glass Electric Melting Furnace With High Purity 99.95%

1. High Purity 99.95% Molybdenum Electrode For Glass Electric Melting Furnace Description:

In a glass furnace, the surface temperature of the molybdenum electrode is generally 200 ℃ higher than the temperature of the molten glass.


If the surface temperature of the molybdenum electrode reaches 2000 ℃. Then the loss of the molybdenum electrode is also larger. The surface temperature of the molybdenum electrode is related to the surface current density applied to the molybdenum electrode. Therefore, the higher the surface current density, the faster the loss.


We suggest that the surface current density of molybdenum electrodes in general electric kilns should be moderate at 1.0-0.7A/cm2. Lower surface current densities should be used when furnaces require higher glass quality and longer electrode life. The highest surface current density of molybdenum electrode should not be greater than 2A/cm2.

The figure below shows the suitable insertion length of the molybdenum electrode in the glass. Improper insertion length will lead to the rapid oxidation of the molybdenum electrode due to high temperature.

High Purity 99.95% Molybdenum Electrode Rod For Glass Electric Melting Furnace

High Purity 99.95% Molybdenum Electrode Rod For Glass Electric Melting FurnaceHigh Purity 99.95% Molybdenum Electrode Rod For Glass Electric Melting Furnace

2. Molybdenum Electrode Of Glass Electric Melting Furnace With High Purity 99.95%:

High Purity 99.95% Molybdenum Electrode Of Glass Electric Melting Furnace:

Dia
[mm]
tolerance
[mm]
length
[mm]
Surface Straightness
[per m]
Approx weight
[kg/m]
4.00 +/- 0.020 1000 - 2000 polished <2.0 0.128
10.00 +/- 0.020 1000 - 2000 polished <2.0 0.801
20.00 +/- 0.020 2000 polished <2.5 3.204
25.00 +/- 0.040 2000 polished <2.5 5.007
30.00 +/- 0.300 2000 Polished <1.5 7.210
40.00 +/- 0.300 2000 Polished <1.5 12.818
50.00 +/- 0.400 2000 Polished <1.5 20.654
60.00 +/- 0.400 2000 Polished <1.5 28.840
63.50 +/- 0.400 2000 Polished <1.5 32.303
70.00 +/- 0.400 2000 Polished <1.5 39.254
80.00 +/- 1.000 2000 Polished <2.5 51.271
90.00 +/- 1.000 2000 Polished <2.5 64.890
100.00 +/- 1.000 2000 Polished <2.5 80.111
120.00 +/- 2.000 2000 Polished <2.5 115.359

3. Performance optimization of molybdenum electrodes for glass electric melting furnaces

The failure mode of molybdenum electrodes used in glass electric melting furnaces is a complex phenomenon that depends on the chemical composition of the electrodes, the current density, the chemical composition of the glass melt, etc. Its performance can be optimized by surface finish, impurity content control, etc.

1). Surface finish

The diameter tolerance and surface finish of the molybdenum electrode can be ensured by machining and grinding the surface, so that when it is installed in the electrode holder, impurities and foreign matter do not contaminate the surface.

2). Impurity content control

Impurities in molybdenum powder can directly cause electrode cracks or hidden cracks; at the same time, C, N, etc. will also cause bubbles in the glass liquid, affecting the quality of the glass; metal elements such as Ti, Ni, Cu, Cd will color the glass.

3). Molybdenum powder particle size control

According to production practice experience and data analysis, it is known that molybdenum powder with medium particle size and close to normal distribution is suitable for the production of high-quality molybdenum electrode products.

4). Molybdenum electrode sintering

The temperature difference between the inside and outside of the molybdenum electrode blank is minimized by adopting a slow and steady temperature rise and a step-by-step heat preservation system to prevent defects such as internal cracks caused by excessive thermal stress. Appropriate heat preservation temperature and time can ensure a fine and uniform grain structure.

5). Molybdenum electrode forging

The key to producing high-quality molybdenum electrodes is to use a suitable forging process, especially suitable forging temperature, final forging temperature, deformation and pass deformation.





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High Purity 99.95% Molybdenum Electrode Rod For Glass Electric Melting Furnace

High Purity 99.95% Molybdenum Electrode Rod For Glass Electric Melting Furnace



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