The purpose and features of neutral ramming mass

 Neutral ramming mass have a wider range of applications, such as the smelting of stainless steel, high-alloy steel and high-speed tool steel. Neutral ramming mass is usually rammed with an air hammer or a ramming machine, and the thickness of the ramming material is about 50~150mm at one time.

Refractory ramming materials can be constructed at room temperature, such as using thermoplastic organic materials that can form carbon bonds as binders, most of which are heated and mixed evenly and then constructed immediately. After molding, different heating methods are used to promote hardening according to the hardening characteristics of the mixture or sintering. For ramming materials containing inorganic chemical binders, they can be demolded and baked after they harden to a certain strength; Materials containing thermoplastic carbon binders can be demolded after cooling to have appropriate strength. After demolding it should be quickly heated to carbonize before use. The sintering of the refractory ramming material furnace lining can be carried out in advance before use, or can be completed by heat treatment with a suitable thermal system during the first use. The baking and heating system of the ramming material varies according to the material.

The main purpose of the ramming material is to cast the lining of the smelting furnace in direct contact with the melt, such as the blast furnace tap hook, the bottom of the steelmaking furnace, the inner lining of the induction furnace, the top of the electric furnace, and the blanking part of the rotary kiln. In addition to the furnace lining, large prefabricated components can also be manufactured.
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