Luoyang HongtengIntermediate frequency induction furnace
Billet-Slab Prices, News and Analysis Billet vs. slab price comparisons are often done using price indices, which can help provide insight into the relative costs of these two major semi-finished steel products. Here is an overview of the key differences between them and how to compare them using price indices: Bill vs. Slab Definitions: 1. Bill: – Definition: Billet is a semi-finished steel product with a square cross-section that is typically fed into a rolling mill to produce long products such as bars, rods and sections. – Size: Typically measures about 100-200 square millimeters. – Purpose: Billets can be rolled into long products or further processed into other shapes. 2. Slab: – Definition: Slab is a semi-finished steel product with a rectangular cross-section that is fed into a rolling mill to produce flat products such as plates, sheets and coils. – Size: Typically measures about 200-250 millimeters thick and can be up to 2,000 millimeters wide. – Purpose: Slabs can be further processed into flat rolled products. Price Comparison: 1. Price Index: – Bill Price Index: Used to track changes in billet prices in the market, affected by a variety of factors such as raw material costs, long mill demand...
The rolling mill is the production link that rolls steel ingots or billets into steel. The production of steel by rolling has the advantages of high productivity, a wide variety of products, strong continuity of the production process, and easy mechanization and automation. Therefore, it is more widely used than forging, extrusion, drawing and other processes. At present, about 90% of steel is rolled into products. Non-ferrous metal products are also mainly produced by rolling. The finished products of steel rolling are mainly divided into three categories according to the cross-sectional shape of the steel: steel plates, steel pipes and steel sections (including wire rods). Steel sections have the most cross-sectional shapes and varieties. According to their uses, they can be divided into commonly used steel sections (square steel, round steel, flat steel, angle steel, channel steel, I-beam, etc.) and special steel sections (rails, steel piles, bulb flat steel, window frame steel, etc.). According to the cross-sectional shape of the product, it can be divided into simple cross-sectional steel sections and special cross-sectional steel sections. The characteristic of a simple cross-sectional section is that the tangent line made at any point on the periphery of its cross-sectional section...
The principle of aluminum ingot casting is the physical process of cooling and crystallizing liquid aluminum into solid aluminum ingots through casting. The process flow is as follows: 1. Aluminum tapping: take the aluminum liquid out of the furnace; 2. Slag removal: remove impurities and slag from the aluminum liquid; 3. Weight inspection: weigh the aluminum liquid; 4. Batching: mix aluminum liquids of different components as needed; 5. Furnace loading: load the mixed aluminum liquid into the furnace; 6. Refining: refine the aluminum liquid to improve its purity and quality; 7. Casting: pour the refined aluminum liquid into the mold and wait for it to cool and solidify; 8. Aluminum ingots for remelting: inspect and weigh the cast aluminum ingots, and store qualified products; 9. Finished product inspection: check the appearance, size, weight and other indicators of the aluminum ingots; 10. Finished product weight inspection: weigh the aluminum ingots; 11. Storage: store qualified aluminum ingots in the warehouse. During the casting process, it is necessary to pay attention to controlling parameters such as temperature, time, and pressure to ensure the quality and performance of the aluminum ingot. At the same time, it is also necessary to pay attention to...
The technical parameters of aluminum melting furnaces usually include the following aspects: 1. Furnace capacity: This refers to the maximum volume of aluminum liquid that the furnace can accommodate. Common capacities include 1 ton, 2 tons, 5 tons, etc. For example, a 5-ton aluminum melting furnace is suitable for large-scale aluminum product manufacturers. 2. Heating power: Determines the speed and efficiency of furnace heating. Generally measured in kilowatts (kW), such as 300kW, 500kW, etc. The greater the power, the faster the heating speed is usually, but the energy consumption also increases accordingly. 3. Maximum operating temperature: Usually between 700-1000℃. For example, some models of aluminum melting furnaces have a maximum operating temperature of up to 900℃, which can meet the smelting needs of most aluminum and aluminum alloys. 4. Furnace lining materials: Common ones include refractory bricks, refractory castables, ceramic fibers, etc. Different furnace lining materials have different refractory and thermal insulation properties. 5. Energy consumption index: For example, the energy consumption per ton of aluminum, which is an important parameter to measure the energy-saving effect of the furnace. The energy consumption per ton of aluminum of an excellent aluminum melting furnace can be controlled at a low level. 6....
The melting point of aluminum is 660.37℃. Under standard atmospheric pressure, when aluminum is completely melted, the temperature will continue to rise. The post-processing of aluminum after melting will vary depending on the specific needs and application scenarios. The following are some common processing steps and methods: 1. Refining: The purpose is to remove gas and non-metallic inclusions in the aluminum liquid and to uniform the alloy composition. Refining agents are usually used, added to the aluminum liquid, and stirred with tools to make the refining agent fully contact with the aluminum liquid to achieve the effect of removing impurities and gases. The refining temperature is generally controlled at 700-720℃. 2. Composition adjustment: Detect the chemical composition of the aluminum liquid and add the corresponding alloy elements as needed to adjust the composition of the aluminum liquid to meet the specific alloy requirements. 3. Modification treatment: If it is a cast aluminum alloy, it may be necessary to perform modification treatment to refine the grains and improve the performance of the casting. The modifier should be preheated first, the modification temperature generally does not exceed 740℃, the modification time is usually about 10 minutes, and the amount of modifier added...
The melting point of aluminum is 660.37℃. In practical applications, the post-melting treatment methods of aluminum will vary depending on the specific situation. The following are some common treatment methods: Degassing and impurity removal: The aluminum liquid may contain gas and impurities, which will affect the quality of aluminum. In the later stage of melting, the gas and impurities in the aluminum liquid can be removed by using flux, stirring, blowing and other methods. Grain refinement: Sometimes it is necessary to refine the grains of aluminum to improve its mechanical properties. This can be achieved by adding grain refiners or using specific solidification processes. Alloying: If aluminum alloys need to be prepared, other alloying elements can be added in the later stage of melting to achieve the desired composition and properties. Temperature control: Accurately controlling the temperature of aluminum liquid is very important for subsequent processing and use. In the later stage of melting, the temperature needs to be adjusted according to specific requirements to ensure the quality and performance of aluminum liquid. Casting or molding: According to the requirements of...
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