• 作者： 施登士；黃兆年
• 作者服務機構： 國立中央大學機械工程研究所; 國立師範大學工業教育研究所
• 中文摘要： 本文調?了不同製程參數，譬如澆鑄?度和時間，不同砂模（CO2砂模，濕砂模-系統模砂及實驗模砂）等，對鑄鐵或鋁合金(A356)鑄件，澆鑄時，模穴壓力變化，排氣效率的影響，同時觀察鑄件在不同?充速率，及熔液過進模口或達鑄件頂面時?度高低，對鑄件品質的影響，所觀察到的鑄疵有縮孔，氣孔或由排氣不良所生鑄件外形不完整等。實驗結果說明了以頂部澆入模穴，澆口：?澆道：鑄口（澆口比）?1:4:2時，鑄鐵之理想?充速率和熔液?度，以及A356鑄件的理想條件。
• 英文摘要： This paper studied the effect of processing parameters, such as pouring temperature and time and different sand molds, on the pressures of gas exhausted from sand molds poured with cast iron and A356. The effects of feeding rate and temperature of molten metal passing through ingate or reaching the top surface of castings on the quality of castings were observed qualitatively. The casting defects observed were shrinkage, gas hole (or blow hole), or casting without integrity due to incomplete exhaust of gas in the mold cavity. Experimental results show the ideal feeding rates and temperature ranges for cast iron and A356 castings under the gating ratio of 1:4:2.
• 中文關鍵字： pouring temperature; casting defect; exhausting gas
• 英文關鍵字： --