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The first step in the production of non-ferrous metal materials is smelting. The quality of smelting directly affects the yield and cost of subsequent processes such as rolling, upcasting tubes.
Taking the melting of copper and copper alloy as an example, the hydrogen and slag in the melt cannot be completely discharged. So, must use covering agent help, which should generally meet the following requirements:
1) strong adsorption, dissolution and chemical slag-forming capabilities.
2) have large specific gravity difference with the metal melt. 3) The interfacial tension between it and the metal melt should be large to facilitate metal separation.
4) high chemical and thermal stability, and should not corrode the metal and furnace lining, or produce harmful gases and impurities.
5) high melting point.
6) low hygroscopicity and low vapor pressure.
7) low activity, is not easy to oxidize, and has small pores.
8) low melting loss.9) no slag on the surface of the furnace wall.
Graphite powder covering, whether it is the quality of the ingot or the quality of the rolled plate, is higher than that of charcoal covering or other materials.
Graphite powder covering has the following advantages:
1) High temperature resistance, not easy to oxidize, long service life, few impurities, pure composition.
2) Very low moisture absorption.
3) Weak activity, large surface tension, can be separated from metal.
4) High chemical and thermal stability, no corrosion to metal and furnace lining.
5) Strong adsorption, dissolution and chemical slag forming ability.
6) Good thermal insulation performance, easy to add materials.
7) Good refining effect, almost no slag on the surface of the furnace wall.
9) prevent the infiltration of gas outside the furnace, and is conducive to the discharge of gas and slag in the melt liquid.
11) loss of smelting metal is small, which reduces the smelting cost and improves the product quality.
L.T Flake powder, as melt cover, we use low impurity content, high carbon content, comparable to lithium battery negative electrode materials
L.T synthetic graphite powder, a dust free, ultra pure and consistent materialis, is successfully used as melt cover for pure copper, brass, bronze or other copper alloys, in order to prevent oxidation of the melt and to deter the formation of oxide slag.
As chemically inert and as a result does not react with copper and its alloys. L.T Graphite powder has a much lower consumption of the melt cover material compare with similar goods on the market.
We also provide customize service according our customers' requirements
The first step in the production of non-ferrous metal materials is smelting. The quality of smelting directly affects the yield and cost of subsequent processes such as rolling, upcasting tubes.
Taking the melting of copper and copper alloy as an example, the hydrogen and slag in the melt cannot be completely discharged. So, must use covering agent help, which should generally meet the following requirements:
1) strong adsorption, dissolution and chemical slag-forming capabilities.
2) have large specific gravity difference with the metal melt. 3) The interfacial tension between it and the metal melt should be large to facilitate metal separation.
4) high chemical and thermal stability, and should not corrode the metal and furnace lining, or produce harmful gases and impurities.
5) high melting point.
6) low hygroscopicity and low vapor pressure.
7) low activity, is not easy to oxidize, and has small pores.
8) low melting loss.9) no slag on the surface of the furnace wall.
Graphite powder covering, whether it is the quality of the ingot or the quality of the rolled plate, is higher than that of charcoal covering or other materials.
Graphite powder covering has the following advantages:
1) High temperature resistance, not easy to oxidize, long service life, few impurities, pure composition.
2) Very low moisture absorption.
3) Weak activity, large surface tension, can be separated from metal.
4) High chemical and thermal stability, no corrosion to metal and furnace lining.
5) Strong adsorption, dissolution and chemical slag forming ability.
6) Good thermal insulation performance, easy to add materials.
7) Good refining effect, almost no slag on the surface of the furnace wall.
9) prevent the infiltration of gas outside the furnace, and is conducive to the discharge of gas and slag in the melt liquid.
11) loss of smelting metal is small, which reduces the smelting cost and improves the product quality.
L.T Flake powder, as melt cover, we use low impurity content, high carbon content, comparable to lithium battery negative electrode materials
L.T synthetic graphite powder, a dust free, ultra pure and consistent materialis, is successfully used as melt cover for pure copper, brass, bronze or other copper alloys, in order to prevent oxidation of the melt and to deter the formation of oxide slag.
As chemically inert and as a result does not react with copper and its alloys. L.T Graphite powder has a much lower consumption of the melt cover material compare with similar goods on the market.
We also provide customize service according our customers' requirements
