Carbon Additives

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Due to high ash content, Indian coal powder not useful in foundries. Due to this over the years, synthetic alternatives were first imported. While these synthetic alternatives are efficient, their cost is high. Now, we have a new economic alternative. Duet to globalization, best quality sea coal is sourced from around the world, which we process to endure natural low ash coal dust for the green sand in foundry.

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Chemicals Properties:

• Burns only at high temperature.
• Normally unafected by acids, dry chloring gas or molten alkali at low red heat.
• Strong oxidants such as mixture of hot nitric acid and potassuim chlorate will oxidize it completely.

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Petroleum base sand additives possess superior compression strength reduce the problems like mould dialition, scabs, red tails, buckles, pinholes & blowhole gives excellent surface finish in casting hence they are dimensionally accurate.

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We also deal in Calcined Petroleum Coke.

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Coconut Shell charcoa is used as carbon additive in Steel manufacturing and SG iron castings/SG irono foundry for its zero sulphur content and fixed carbon of 78 % which gives more carbon recovery.

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Advantages of Cathofast Over Coconut Shell:

• Exceptionally Low sulphur level, ideal for S.G Iron production. Low sulphur and stable carbon distribution can effectively reduce the poisonous effect of sulphur in spheroidizing the cast-iron.
• High Carbon Pick-Up upto 95-97% which is more than Coconut charcoal whose pick-up is 40-50%.
• No fumes and flames during addition of CarboFast as percentage of volatile matter is less than 1%, where as in Charcoal due to presence of excessive ash, sticky lumps of excessive slag are regularly formed.
• Unlike CarboFast , Charcoal contains lot of moisture and ash which disturbs the chemical composition/microstructure of S.G. Iron. CarboFast has 0.05% moisture and only 0.25% Ash.
• Dissolution of CarboFast takes place at low temperature and thus saves 10% of electric power/energy and time. Coconut Shell charcoal requires higher temperature for dissolution. Hence, Charcoal requires lot of electric power and time to dissolute in the liquid melt.

High Graphite Crystal Nucleus and High Graphitization Degree:
These properties can reduce:

• the molten iron contraction tendency and improve the mechanical properties of casting.
• Great Flexibility of anytime addition.
• Reliable carbon pick-up resulting in better productivity and time saving.
• > CarboFast addition increases the dosage of scrap steel and reduces the consumption of costly pig-iron.
• Because of stable carburetion, high absorption rate and distinct temperature-lifting effect, there is no development of excess slag. This results in effective protection and lengthening of furnace life and reduces the consumption of the furnace lining.
• CarboFast is very cost-effective compared to Coconut charcoal shell because of above reasons.

Additions:

• Can be added into the furnace along with scrap for initial carbon addition.
• Carbon adjustment for obtaining final composition during last minutes of pouring can also be done.

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Carbon cups is designed to provide accurate and consistent reading of cooling curve of molten metal for the calculation of CE/C and Si

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We also deal in Met Coke. We ae promonint supplier of Met Coke in India, Used in Foundry Industries

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As our Crystalline Graphite Powder is made from the best quality raw materials under the specific physical conditions, it is highly used in the various industries. This product is now being widely used in foundries in India and as well as being exported to foundries in African and Asian region.

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