Cast iron deslagging composite material and preparation method thereof
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A composite material, cast iron technology, applied in the field of material processing, can solve the problems of inconvenient storage of calcium carbide, affecting the working environment, unsafe use, etc., and achieve the effects of reducing heat loss, reducing environmental pollution, and convenient operation.
Inactive Publication Date: 2011-08-17
NANJING UNIV OF INFORMATION SCI & TECH
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Problems solved by technology
The use of calcium carbide is inconvenient to store and unsafe to use; fluorite corrodes the cladding wall and has poor slag removal effect; the use of sodium chloride and ice crystal powder brings smoke and affects the working environment
Method used
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Embodiment 1
[0025] Will Al 2 o 3 Powder, V 2 o 3 powder, MgO powder, CeO 2 powder, CaO powder, TiO 2 Powder, SiO 2 The powder is weighed according to the mass percentage of each component in the cast iron slag removal composite material: Al 2 o 3 8.0 parts, V 2 o 3 0.10 parts, MgO 4.0%, CaO 15 parts, TiO 2 12 parts, CeO 2 0.001 parts, SiO 2 60.899 copies.
[0026] 2) Put the prepared material into the mixer, then add 5 parts of water to the material, the stirring speed is 1000 rpm, the water and the material are evenly mixed for 10-15 minutes, then take it out, put it into sintering furnace;
[0027] 3) When the sintering heating temperature is 1150-1230°C, the holding time is 2-3 hours; after the holding time is reached, it is cooled to room temperature with the furnace, and then crushed into particles with a size of 0.2-0.6mm in a crushing device to obtain the granule of the present invention. The cast iron slag removal composite material can be used as a cast iron sl...
Embodiment 2
[0029] Press Al 2 o 3 8.9 parts, V 2 o 3 0.15 parts, MgO 5.4 parts, CaO 19 parts, TiO 2 14.9 parts, CeO 2 0.006 parts, SiO 2 51.644 parts are batched; add 6 parts of water, the stirring speed is 960 rpm, and other processes are the same as in Example 1.
Embodiment 3
[0031] Press Al 2 o 3 8.2 parts, V 2 o 3 0.12 parts, MgO 4.7 parts, CaO 17 parts, TiO 2 14 parts, CeO 2 0.003 parts, SiO 2 55.977 parts carry out batching; Enter and account for the water of 3 parts of batching gross weights, stirring speed is 1200 rev / mins, and other processes are with embodiment one.
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Abstract
The invention provides a low-cost cast iron deslagging composite material with excellent environmental protection performance and good deslagging performance, and a preparation method thereof. The deslagging composite material comprises the following components in percentage by mass: 7.0 to 8.9 percent of Al2O3, 0.10 to 0.15 percent of V2O3, 4.0 to 5.4 percent of MgO, 15 to 19 percent of CaO, 12 to 14.9 percent of TiO2, 0.001 to 0.01 percent of CeO2, and the balance of SiO2, wherein the grain diameter of the deslagging composite material is 0.2 to 0.6 mm. The preparation method thereof comprises the following steps: mixing the materials; putting the mixed materials into a stirrer, adding water into the materials, taking the materials out after mixing for 10 to 15 minutes and putting the materials into a sintering furnace, wherein the water accounts for 3 to 6 percent of total weight of the mixed materials; controlling the sintering temperature to between 1,150 and 1,230 DEG C, and preserving the heat for 2 to 3 hours; and cooling the materials together with the furnace to room temperature to obtain the cast iron deslagging composite material. The deslagging composite material and the preparation method have the advantages of simple process, low production cost and suitability for industrialized production.
Description
1. Technical field: [0001] The invention relates to a slag-removing composite material, in particular to a slag-removing composite material containing magnesium-titanium oxide used for cast iron, and belongs to the technical field of material processing. 2. Background technology: [0002] Slag remover is used in cast iron production to ensure slag-free pouring of casting ladles, eliminate impurities in castings, reduce iron loss and save energy. CN02154637.1 After testing, perlite with low expansion multiple was screened out and used as thermal insulation and slag removal agent. The invention is suitable for use in the foundry industry before casting. All thermal insulation and slag removal agents use perlite with an expansion ratio of 3-5, and the water content is 0.09%-3.5%. [0003] CN200510027180.3 provides a liquid metal thermal insulation and slag removal agent, which is manufactured by the following process: using perlite as raw material, drying it at 200-1100°C for...
Claims
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