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Collapsible core and method for producing the collapsible core feasible for high speed high pressure casting
Collapsible core and method for producing the collapsible core feasible for high speed high pressure casting
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机译:可塌陷型芯及可用于高速高压铸造的可塌陷型芯的制造方法
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摘要
Disclosed is a collapsible core for use in a casting and a method for producing the collapsible core. The collapsible core comprises a main core body, a first layer formed over the core body, a second layer formed over the first layer, and a third layer formed over the second layer. The second layers includes a thermosetting resin such as low temperature decomposable resin. The low temperature decomposable resin comprises one of urea resin and phenol resin. The thermosetting resin is applied to the first layer by dipping, spraying or brush-painting. This thermosetting resin provides tight bonding to the neighbouring layers.
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