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Firstly, according to the situation of the converter, a slag adjuster is added to adjust the composition of the slag, and the furnace body is repaired, the residual furnace is poured, and then the tap hole is blocked. After loading the scrap...

But there are other methods, such as reasonable selection of chemical composition, changing the composition of the charge, overheating of molten iron, inoculation, and micro or low alloying, etc., which can achieve good results of gray cast iron....

The homepage of this article introduces the influence of metallurgical factors, mainly cooling rate, overheating of molten iron, inoculation treatment, charge characteristics, etc....

The mechanical properties of gray cast iron are determined by the distribution of its matrix structure and flake graphite. The mechanical properties of gray cast iron mainly depend on its matrix structure. ...

A reasonable smelting process should be compiled according to the metallurgical characteristics of the intermediate frequency electric furnace. From charging, temperature control, and adding alloys , recarburizers , slag removers , etc....

The role of silicon in cast iron is multifaceted. Among them, we are most concerned about the first two items: promoting graphitization and solid solution strengthening...

Molybdenum has a very important role in high manganese steel casting production,practice has proven that high manganese steel containing moral mens is good in abrasive abrasion conditions....

In recent years, we have researched and developed high-strength gray iron production methods that adapt to specific production conditions and different casting requirements (including thin-walled high-strength gray iron castings). ...

Adding a certain amount of certain alloying elements to cast iron can obtain alloy cast iron with higher corrosion resistance in some media. High silicon cast iron is one of the most widely used....

The nitrogen absorbed by liquid metal comes from a variety of sources, and there are two main categories: One is the nitrogen contained in the molten metal itself before pouring. The second is nitrogen contained in resin sand....

Silicon is generally brought in by the charge (mainly ferrochrome and pig iron). Carbon ferrochromium generally contains silicon. The silicon content of low-carbon ferrochrome produced in my country is 1.5%~2.0%....

Special reminder is the graphite columnar particle recarburizer,this recarburizer is particularly well absorbed in the furnace. The nitrogen content can reach 800PPM, which is 0.08%, and the sulfur content is 0.05%....