A Study on the Promotion of Crystal Glass Quality by Open Mold Process

• Main Authors: Han-Pin Lin, 林漢濱
• Other Authors: Jeng, Yoau-Chau
• Format: Others
• Language: zh-TW
• Published: 2011
• Online Access: http://ndltd.ncl.edu.tw/handle/58792198564764709950

博士 === 國立彰化師範大學 === 工業教育與技術學系 === 99 === ABSTRACT This study aimed to explore the manufacturing process of open-mold crystal glass casting, and how it could improve the quality of the surface of it’s products; meanwhile, improving the basic structure, fragility, hardness and strength of the products and reducing the production cost so as to increase competitiveness and to obtain more space for production growth. In this study, earth-mold casting method was adopted for the control group and Chang-Gung casting method for the experimental group, in order to compare with the differences in superficial quality, basic structure, fragility hardness, strength and production cost of the products made in these two different process. Production cost was determined by the cost of materials and processing costs. Comparison between the two groups was made to reach better process quality and lower costs. According to the experimental results, the conclusions of the study were as follows: 1. The Rz value of Chang-Gung casting method was less than the Rz value of earth-mold casting. 2. The products made with Chang-Gung casting method were better than those made with earth-mold casting in finer basic structure with evener distribution of elements. 3. Anti-pressure of Chang-Gung casting method was higher than anti-pressure of earth-mold casting. 4. Products made with Chang-Gung casting method were superior to those made with earth-mold casting method in better structural strength and less fragility. 5. Products made with two methods were of the same hardness. 6. Production cost of Chang-Gung casting method was lower than that of earth-mold casting method.