铸件

树脂砂铸造缸体铸件,涂料怎么上?

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树脂砂铸造缸体铸件,涂料怎么上?

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一是要控制好砂温在15-30度,砂温过高固化快、过低固化慢、固化过快或过慢都要降低终强度和耐火度。二是提高砂的颗粒度。三是注意砂的酸碱度。四是降低型砂的水分和微粉含量。五是合理的选择树脂、六是合理的选择固化速度。七是合理的加强型砂的紧实力度。八是精心涂刷涂料和上优质涂料。九是选择合理的从造型后到浇铸的间隔时间。
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树脂砂型与涂料相匹配,可以使用一薄层过渡层涂料。喷涂、烘烤,或非水基涂料,热型、芯可以利用其余热。过渡层涂料要自己制造。
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浸涂,注意烘干。
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