The Relationship Between Steel Weight and Pouring Time
Metallurgy is an important branch of metal materials science, which studies the physical and chemical properties, composition, structure and preparation of metal materials. It is an important basis for manufacturing metal materials. Pouring steel is a common method in metallurgy. The weight of the steel poured and the pouring time have an important influence on the quality of the steel. Therefore, it is necessary to study the relationship between the weight of the steel poured and the pouring time.
(1)Pouring time is a very important factor to determine the weight of the steel poured. With the extension of the pour time, the molten steel can gradually fill the entire mold cavity, so that the weight of the steel formed after pouring can reach the expected value. Generally speaking, the pouring time of steel products can be increased or reduced in order to ensure the weight of the steel poured, but this has certain limitations. Generally, the speed of pouring steel can not exceed 3m/min and the speed of squeeze should not exceed 8m/min.
(2) The increase of the pouring temperature also has a certain influence on the weight of the steel poured. The higher the pouring temperature, the more liquid the molten steel, the easier it is to fill the mold. Therefore, the increase of pouring temperature can ensure the larger weight of the steel poured. However, the increase of pouring temperature will also reduce the strength of the steel formed after pouring. When the pouring temperature exceeds the temperature range, the poured steel will appear sand holes, shrinkage and other phenomena, which will affect the use effect of the steel.
(3) The size of the mold is another factor that affects the weight of the steel poured. If the size of the mold does not match the product size, then the molten steel cannot fully fill the mold, resulting in an insufficient weight of the steel product. Therefore, in order to ensure the weight of the steel product, it is necessary to select a suitable mold size and shape according to the product size.
(4) The content of impurities in the molten steel also has a certain influence on the weight of the steel poured. Too much impurity in the molten steel will reduce the liquidity of the steel, resulting in decreased weight of the steel poured. Therefore, it is necessary to strictly control the composition of the molten steel, reduce the content of the impurities, and improve the liquidity of the molten steel.
In summary, the factors affecting the weight of the steel poured include the pouring time, pouring temperature, mold size and molten steel impurity content. By controlling these factors, it is possible to ensure the weight of the steel poured.
