Method for solving problem of burnt-on sand of thick-wall steel casting
A technology for steel castings and sand sticking, which is applied in the directions of casting molds, mold components, and casting molding equipment to achieve the effects of convenient operation, reducing modulus, and solving the problem of sticking sand.
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[0013] A method for solving the problem of sand sticking in thick-walled steel castings, which is characterized in that: the method first prepares Q235 steel and φ80 sand-insulated chill iron, and then evenly distributes the sand-insulated chill iron on the core bone, and then Put the core bone in the core box, control the thickness of the sand and cold iron sand barrier layer at 30-50mm, then start to flow a layer of 50mm thick chrome ore sand on the inner surface of the core box, focus on strengthening and compacting the corners of the nest, flow silica sand, and finally After unpacking, it can be painted three times with water-based paint as a whole.
[0014] The spacing between each sand-separating cold iron on the core bone is 100mm.
[0015] The above-mentioned chrome ore is a mixture of new chrome ore and regenerated chrome ore, wherein the weight content of new chrome ore is 15%-20%, and the weight content of regenerated chrome ore is 80%-85%.
[0016] After the above...
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