A kind of furan resin loaded nano-ceramic modified molding sand

A technology of furan resin and nano-ceramics, which is applied in the direction of cores, casting molds, casting molding equipment, etc., can solve the problems of oxidation corrosion, operator injury, unsuitable for large-scale production and use, and achieve easy curing molding, not easy to fall sand, The effect of improving labor productivity
CN110814273BActive Publication Date: 2021-01-12ANHUI SOLID FOUNDRY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ANHUI SOLID FOUNDRY CO LTD
Publication Date
2021-01-12

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Abstract

The invention discloses furan resin loaded nano ceramic modified molding sand. The furan resin loaded nano ceramic modified molding sand is characterized by comprising the components, by weight, 50-70parts of silica sand, 40-50 parts of quartz sand, 2-5 parts of manganese sand, 3-6 parts of white marble sand, 3-5 parts of glass sand, 3-6 parts of emery, 1-3 parts of borax, 2-4 parts of rare earthporcelain sand, 4-8 parts of coal ash, 5-10 parts of triethoxy-2-furan silane modified nano ceramic powder, 6-9 parts of furan resin, 4-7 parts of epoxidized polyurethane / 2,5-di(aminomethyl) furan polycondensate, 2-4 parts of hyperbranched epoxy resin and 25-35 parts of water. The invention also discloses a preparation method of the furan resin loaded nano ceramic modified molding sand. The furanresin loaded nano ceramic modified molding sand has the advantages of being good in air permeability, flowability, and dispersibility, high in strength, good in heat resistance, excellent in comprehensive performance, smooth in casting surface, not prone to falling out, and capable of being recycled and reused.
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Description

technical field

[0001] The invention relates to the technical field of molding sand, in particular to furan resin loaded nano-ceramic modified molding sand. Background technique

[0002] Casting is the process of smelting metal into a liquid that meets certain requirements and pouring it into a mold, cooling and solidifying, and cleaning to obtain a casting with a predetermined shape, size and performance. Because the casting blank is almost formed, it achieves the purpose of no machining or a small amount of processing, which reduces the cost and reduces the production time to a certain extent. Casting is one of the basic processes of the modern device manufacturing industry. An indispensable material in the casting process is molding sand, which serves the purpose of modeling in casting. It is generally made by mixing molding materials such as raw sand for casting, molding sand binder and auxiliary additives in a certain proportion. According to the different binders used...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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