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首页> 外文期刊>Journal of Materials Engineering and Performance >Effect of Slurry Composition on Plate Weight in Ceramic Shell Investment Casting
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Effect of Slurry Composition on Plate Weight in Ceramic Shell Investment Casting

机译：陶瓷壳熔模铸造中浆料组成对板厚的影响

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This paper deals with the study of the effect of primary slurry parameters on the plate weight (ceramic retention test) in ceramic shell investment casting process. Four controllable factors of the zircon flour and fused-silica powder based slurries were studied at three levels each by Taguchi's parametric approach and single-response optimization of plate weight was conducted to identify the main factors controlling its stability. Variations in coating thickness with plate weight were calculated for each slurry and ceramic shell moulds were made on wax plate using primary slurry and coarse fused-silica sand as stucco. The Scanning Electronic Microscopy (SEM) technique has been used to study the surface morphology of zircon flour and fused silca powder particles as well as primary coating (shell surface). X-ray Diffraction (XRD) analysis was done to identify the various phases present in the ceramic slurry coating. Optical profilometer has been used to measure the surface roughness of the shells. The result reveals that the surface condition of shell can be improved by increasing the plate weight, corresponding to higher filler loading in the slurry. Confirmation experiments were conducted at an optimal condition showed that the surface quality of the ceramic shell mould were improved significantly. Castings were produced using Al-7%Si alloy in recommended parameters through ceramic shell investment casting process. Surface roughness of the produced casting were measured and presented in this paper.
机译：本文研究了在陶瓷壳熔模铸造工艺中，主要浆料参数对板重量的影响（陶瓷保留测试）。通过Taguchi的参数方法在三个级别上分别研究了锆粉和熔融硅粉基浆料的四个可控因素，并对板重进行了单响应优化，以确定控制其稳定性的主要因素。计算每种浆液的涂层厚度随板重的变化，并使用一次浆液和粗熔融硅砂作为灰泥在蜡板上制得陶瓷壳模具。扫描电子显微镜（SEM）技术已用于研究锆石粉和熔融硅粉粉末颗粒的表面形态以及底涂层（壳表面）。进行了X射线衍射（XRD）分析，以确定陶瓷浆料涂料中存在的各种相。光学轮廓仪已用于测量壳体的表面粗糙度。结果表明，可以通过增加板重量来改善壳的表面状况，这对应于浆料中较高的填料负载。在最佳条件下进行的确认实验表明，陶瓷壳模具的表面质量得到了显着改善。通过陶瓷壳熔模铸造工艺，使用推荐参数的Al-7％Si合金生产铸件。测量了所生产铸件的表面粗糙度，并在本文中进行了介绍。

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