A packing material for making high temperature resistant pouring ladle for cast iron and its preparation method
A pouring ladle and high temperature resistant technology, which is applied in the field of casting ladles, can solve the problems of high cost, insufficient refractoriness temperature, and excessive slag entering of castings, and achieve the effect of cost reduction
Active Publication Date: 2016-01-27
HEBEI FENGWEI MACHINERY
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Problems solved by technology
When smelting 45M material, because the temperature of molten iron is higher than the usual 1450°C, reaching 1550°C, the refractoriness temperature of the traditional packing material is not high enough, so that the poured castings have more slag, and the reject rate is as high as 30% or more; while the market The existing high-temperature-resistant packaging materials on the market generally cost more than 3,000 yuan / ton, and after our use, the effect is not very satisfactory
Method used
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Experimental program
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Effect test
Embodiment Construction
[0015] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in detail below in conjunction with specific embodiments.
[0016] A packaging material for making high-temperature-resistant casting ladles for cast iron, which is made by mixing dry materials and water. In the formula of the dry materials, the material specifications and weight ratios of each raw material are: 20-40 mesh primary coke powder, 40%; refractory clay above 200 mesh, 10%; 8-10 mesh refined quartz sand, 20%; 20-40 mesh refined quartz sand, 25%; 200 mesh refined quartz powder, 5%; The weight accounts for 20% of the total weight of the dry material.
[0017] The method for preparing packing materials for making high-temperature-resistant pouring ladles for cast iron includes: weighing various raw materials according to the dry material ratio of the pouring ladles manufactured according to needs; The raw materials are fully m...
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The invention discloses a packaging material for fabricating a heat-resistant pouring ladle for cast iron and a preparation method of the packaging material. The packaging material is formed by a drier and water in a mixing manner; the drier comprises the following raw materials by weight percent: 40% of 20-40mesh primary coke powder, 10% of over 200mesh refractory clay, 20% of 8-10mesh refined silica sand, 25% of 20-40mesh refined silica sand, and 5% of 200mesh refined silica sand, and the water accounts for 20% of total weight of the drier. According to the packaging material, a certain ratio of silica sand (powder) and the like are added to the coke powder, so that the cost of the packaging material is reduced to below 1000 yuan / t, the packaging material is heat-resistant, economical and practical, and the rejection rate is reduced to below 6%.
Description
technical field [0001] The invention belongs to the technical field of casting ladles, in particular to a formula for packing materials for making high-temperature-resistant cast iron pouring ladles and a preparation and packing method thereof. Background technique [0002] At present, the traditionally used packaging material for cast iron is composed of coke powder and other refractory materials. When smelting 45M material, because the temperature of molten iron is higher than the usual 1450 °C, reaching 1550 °C, the refractoriness temperature of the traditional packaging material is not high enough, so that the poured castings have more slag, and the scrap rate is as high as 30%; while the market The existing high-temperature-resistant packaging materials on the market generally have a high cost, more than 3,000 yuan / ton, and after our use, the effect is not very satisfactory. [0003] For this reason, it is necessary to experimentally develop packaging materials that ar...
Claims
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IPC IPC(8): C04B35/66
Inventor 周校进霍志春马庆坤尉文敏候立轻
Owner HEBEI FENGWEI MACHINERY