Methods of Reducing Materials’ Waste and Saving Energy in Investment Casting
Methods of Reducing Materials’ Waste and Saving Energy in Investment Casting
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DOI：
10.1007/978-3-319-48166-1_9
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发表时间：
2016
期刊：
影响因子：
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通讯作者：
H. A. Mahrabi;M. Jolly;K. Salonitis
中科院分区：
文献类型：
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作者：
H. A. Mahrabi;M. Jolly;K. Salonitis
本文介绍了近年来熔模铸造在减少材料浪费和节约能源方面的研究进展。熔模铸造工艺的各个阶段包括：成型（模具、脱壳、干燥、脱蜡和焙烧）、熔化、合金化、浇注、凝固和精加工。已经发现，通过以下程序进行优化或提高效率可以节省大量时间、能量和成本。利用计算机模拟，将蜡模焊接到浇道上，设计合适的浇注系统，减少陶瓷型壳干燥时间和涂层数量，设计和组合烧成、预热和热处理工艺，炉型，最终精确控制浇注过程，可以节约能源，提高成品率。还讨论了使用精益实践改进工艺步骤的想法。
This paper presents recent developments in reducing materials’ waste and saving energy in investment casting process. Stages in investment casting process include: molding (tooling, shelling, drying, de-waxing and firing) melting, alloying, pouring, solidification and finishing. It was found that optimization or improved efficiency by the following procedures can lead to substantial time, energy and cost savings. Use of computer simulation, welding wax patterns onto runners, designing appropriate gating systems, reducing ceramic shell drying time and number of coatings, design and combining firing, preheat and heat treatment processes in one go, type of furnace, and finally accurate control of casting procedure can save energy and improves yield. The idea of using lean practices for improving the process steps is also discussed.