About Tamping Paste
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Tamping Paste or Ramming Paste is used in the lining of submerged arc furnace. First it is softened by heating and then applied over refractory lining of submerged arc furnace. Tamping Paste of superior quality is required for long life of the furnace lining.
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Manufacturing Process:
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The manufacturing process for Tamping Paste is same as for Carbon Electrode Paste. The only difference, being the fraction sizes of ECA/CPC, is different for Tamping Paste & binder pitch content is lower than Carbon Electrode Paste.
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| Specifications of Carbon Electrode Paste: |
Green Paste |
Property |
Unit |
ECA Based |
CPC Based |
Plasticity |
% |
As per customers requirement,
typical range 5-15
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As per customers requirement,
typical range 5-15
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Fixed Carbon |
% |
84 Min |
88 Min |
Volatile Matter |
% |
10-11 |
11-12 |
Ash |
% |
5.0 Max |
0.5 Max |
Aparent Density |
gm/cc |
1.60 Min |
1.60 Min |
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Property |
Unit |
ECA Based |
CPC Based |
Fixed Carbon |
% |
94 Min |
99 Min
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Porosity |
% |
25 Max |
35 Max |
Aparent Density |
gm/cc |
1.45 Min |
1.40 Min |
Cold Crushing Strength |
kg/cm2 |
250 Min |
200 Min |
Electrical Resistivity |
Ohm.mm2 /meter |
55 to 65 |
85 to 95 |
Shrinkage |
% |
0.75 Max |
1.00 Max |
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| Note : Plasticity can be altered to suit the customer's requirement. We can supply Tamping Paste in both cylinders and briquettes or as per customer's requirement though the most preferred size is 2-4 inch briquettes. MG recommends using ECA based electrode paste for longer furnace lining life. |
