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Anthracite 23 (3)


1.Carbon additive introduction


Carbon additive are usually named from its end usage, for example,Steel-making carburant( based on YB/T 192200,Black Metallurgy Industry Standard ,Public of China) Cast iron carburant ;it is also used in some adding materials,


for example,being friction materials as one kind of additive in brake pad.Carburant is increasing carbon materials in stell-making and cast iron.


High quality carburant is indispensable supplementary additive in production of high features of steel .


Carburant raw materials are in a great range.As for raw materials ,there are wood carbon origin type,coal based carbon origin type ,


 


High quality carburant are usually refer to the carburant which are through graphitization;under high temperature,carbon atom’s arrangement takes a micromorphology of graphite,so we call it graphitization ;Graphitization can reduce the impurities content and sulphur in carburant,then increase the carbon content.


2.Carbon additive application


In the process of smelting, due to inappropriate adding material or improper or over carbon ,the carbon content didn’t reach the expected value,this case,thus,it needs to add carbon content in liquid steel.Commonly used carbon increasing agent are In casting process,carburant can increase using rate of wasted steel,reduce amount of pig iron or n no need to add pig iron.


 


In electricfurnace smelting feeding material method,carburant should be put in together with waste steel .For small amount adding ,it can be add in iron water surface;But what should be avoided is throw raw materials in large amount in iron water,this is applied to avoid the condition that due to over oxidation the carbon increasing effect is not apparent and the substandard of the casting carbon content.


The amount of carburant put in production process is according to the rate with other materials and the carbon content .For different casting iron,different model of carburant needed.


Good selection of carbrant can reduce the cost of cast iron.


Now times ,almost all of carburant can be applied to electric-furnace smelting,but there are still some carburant  which can be absorb 


very quickly applied to cupola furnace.


 


3.The usual specifications are as follows:


w(C)>96%,volatile≤1.0%,w(S)≤0.5%,w(moisture)≤0.55%,Size:1-5mm.


 



Detailed usage


 


Not only meet your requirement on carbon content but also control the sulfur content effectively. It makes the micro morphology of sulfur in the casting is A form graphite. Get fire and uniform graphite; promote the process of nodulization and inodulization.


Improve iron-graphite system and reduce the ferrite graphite.in addition, the carburant control the sulfur by the high carbon, it can be absorbed wonderfully and no anti-slag, thus reduce cost and lower smelting time save the energy consumption.


 


Usual specifications


 






















































Fixed Carbon



Sulfur



Moisture



Volatile



Graininess



 











90%



 



Carb-QT-99A



99.50%



0.03%



0.50%



0.50%



Custom



Carb-QT-99B



99.00%



0.03%



0.50%



0.50%



Custom



Carb-QT-98



98.50%



0.05%



0.50%



0.50%



Custom



Carb-QT-92



92.00%



0.30%



1.50%



2.00%



Custom



 


 


Benefits: reduce the cost and improve the quality of products


 


Features:


 


Pure chemical composition: high carbon, low sulfur and micro nitrogen, less impurity.


 


Physique: Clean appearance without impurities, fast absorption rate and high absorptivity.


 


Micro morphology: good Crystal quality and improve the performance and specification of casting


 


Stable property: stable carburetion effect, good absorption effect and Increase melt temperature distinctly without back slag.


 


 


Packaging


 


25kg/bag Waterproof woven bag


 


25kg/bag double paper bags


 


50kg/bag woven bag


 


1000kg/bag ton bag


 


If any special instruction, please contact with us.


  


Storage:


 


Please keep the storage clean and dry, prevent moisture and dirty.


 


Quality guarantee and technical support


 


Provide the quality guarantee with the goods including: company name, address, product name, date of manufacture type and model, result of test.


 


Ensure to offer on-site technical service and support.


 


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