Casting Wall Thickness Non-uniform Problem Technology Improvement of Nodular Iron Front End Cover
Front end cover casting structure and technical requirements were introduced,the former production technology and caused wall thickness non-uniform problem was described in details.By adopting a serious method improving measures of thin side down wards and thick side upwards,putting the whole casting in upper mold,setting filter under the runner bar,adopting top gating to reduce the casting structure itself caused deformation,designing reverse deformation amount,and controlling the transporting-knock-out time in 8 h after pouring,the casting deformation problem was been solved successfully.
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