The composition characteristics of ramming material

We all know that the composition of quartz sand ramming material is based on the needs of actual production. It is composed of refractory materials and powder materials of various materials. Adding a few auxiliary agents can improve the combustion efficiency. Then the material is used in combination with auxiliary materials. What are the uses of the agent, and what are the characteristics of its use?

The ramming material uses magnesium chloride, sulfate and other aqueous solutions, as well as phosphates and their polymers as binders, and often uses higher carbon-containing organics and temporary binders that form carbon bonds at high temperatures. Chromium Glauber's salt is often used as a binder for ramming materials. High-alumina and corundum ramming materials are often used as binders with inorganic substances such as phosphoric acid and aluminum phosphates, chlorides, and sulfates. Due to the reaction between phosphoric acid and the activated alumina in the ramming material, a water-insoluble aluminum orthophosphate precipitate is formed and coagulated and hardened. To extend the shelf life of the ramming material, it is necessary to add an appropriate preservative to prevent or delay the coagulation and hardening. Generally, oxalic acid is used as a preservative.

Generally, the ramming material is mainly used for the parts that are in direct contact with the molten material. It is required that the refractory material must have good volume stability, compactness and corrosion resistance, so high-temperature sintering or electrofusion materials are generally used. The large particle size is related to the use part and the construction method. Most of the ramming materials have low normal temperature strength before sintering, and some are not high in medium temperature strength. good combination.

In addition, the refractory performance of quartz sand ramming material is indicated by a large number of production and use data, and the performance is more stable, and through the accurate material and auxiliary material ratio, the waste of production materials can be minimized and production costs can be saved. The beater has high stability and corrosion resistance.