Reducing pot for smelting of metal calcium and magnesium and casting technique of reducing pot
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A technology of casting process and reduction tank, which is applied in the field of reduction tank for smelting metal magnesium calcium and its casting process, can solve the problems of low service life and high production cost of reduction tank, achieve perfect integrity, increase service life, improve resistance Effect of High Temperature Creep Properties
Inactive Publication Date: 2017-11-28
青海丰瑞镁业有限公司
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[0009] Aiming at the deficiencies of the prior art, the present invention provides a reduction tank for smelting metal magnesium calcium and its casting process, which solves the problems of low service life and high production cost of the existing reduction tank
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Embodiment 1
[0088] Embodiment one: the composition of tank body comprises following percentage by weight:
[0089] Cr 20%, Ni 6%, Si 0.7%, N 0.1%, RE 0.2%, C 0.23%, Mn 0.8%, Ti 0.8%, Co 0.5%, W 0.5%, S 0.020%, P≤0.025%, the rest : Fe supplementation;
[0090] The external coating material of the reduction tank includes the following components: 20 meshes of quartz sand.
Embodiment 2
[0091] Embodiment two: the composition of tank body comprises following percentage by weight:
[0092] Cr 21%, Ni 6.5%, Si 1%, N 0.13%, RE 0.3%, C 0.25%, Mn 1%, Ti 1%, Co0.67%, W 0.8%, S 0.030%, P≤0.030%, The rest: Fe supplementation;
[0093] The external coating material of the reduction tank includes the following components: 30 meshes of quartz sand.
Embodiment 3
[0094] Embodiment three: the composition of tank body comprises following percentage by weight:
[0095] Cr 22%, Ni 6.9%, Si 1.3%, N 0.15%, RE 0.4%, C 0.28%, Mn 1.2%, Ti1.2%, Co 0.8%, W 1.0%, S 0.035%, P 0.040%, the rest : Fe supplementation;
[0096] The external coating material of the reduction tank includes the following components: Quartz sand 40 mesh.
[0097] In summary, the present invention further improves the high temperature creep resistance of the reduction tank by adding Co, W and Ti components on the basis of the conventional tank, so that the service life of the reduction tank is increased, and because the added materials are moderately priced, The unit production cost of the reduction tank is reduced, and through its specific casting process, the integrity of the reduction tank is improved during the casting process, the compactness and strength of the reduction tank are strengthened, and the service life and strength of the reduction tank are further improve...
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Abstract
The invention discloses a reducing pot for smelting of metal calcium and magnesium and a casting technique of the reducing pot. The reducing pot comprises ingredients of a pot body and a reducing pot external application material, wherein the ingredients of the pot body comprise, in percentage by weight, 20%-22% of Cr, 6%-6.9% of Ni, 0.7%-1.3% of Si, 0.1%-0.15% of N, 0.2%-0.4% of RE, 0.23%-0.28% of C, 0.8%-1.2% of Mn, 0.8%-1.2% of Ti, 0.5%-0.8% of Co, 0.5%-1.0% of W, smaller than or equal to 0.035% of S, smaller than or equal to 0.040% of P and the balance of Fe; the reducing pot external application material is prepared from the ingredient, namely, 20-40 mesh quartz sand. The high-temperature creep resistance of the reducing pot is further improved by adding Co, W and Ti ingredients on the basis of a conventional pot, so that the service life of the reducing pot is prolonged; the cost of the added material is moderate, the unit production cost of the reducing pot is reduced, the integrity of the reducing pot is improved in the casting process with the specific casting technique, the compactness and the strength of the reducing pot are reinforced, the service life of the reducing pot is further prolonged, and the production cost of the reducing pot is reduced.
Description
technical field [0001] The invention relates to the technical field of nonferrous metal smelting, in particular to a reduction tank for metal magnesium calcium smelting and a casting process thereof. Background technique [0002] Magnesium is a light, malleable, silver-white metal. Because of its abundant reserves, excellent performance and broad application prospects, it is widely used in military, aerospace, transportation and 3C fields. [0003] Calcium is a very hard and light silver-white metal. It can be used as an alloy additive for Al, Cu, Pb, Mg and other alkali metals, as a deoxidizer for steelmaking, as a getter for electronic tubes and as a dehydrating agent for organisms. Gradually developed sunrise metal. [0004] Calcium and magnesium metals are all produced by the thermal reduction process. The following are the basic processes of the thermal process: raw material storage, ore (dolomite, limestone) calcination, grinding, batching, mixing, briquetting, reduc...
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