我厂小座爐改进的經驗,曾在本刊1957年第8期中介紹过。目前由于鑄件数量和品种都有很多的增加,因此过去改进的小座爐已經不适合生产发展的需要。主要表現在以下几个方面: 第一:熔化效率低,滿足不了造型澆鑄的需要。关于这个問題我們認为是和风口的排数有关。因为风口排数決定着熔化带的高度,风口排数少溶化带的 The experience of improving the small furnace in our factory was introduced in our magazine, No.8, 1957. At present, due to the increase in the number of castings and varieties, the small stoves improved in the past are no longer suitable for the needs of production and development. Mainly in the following areas: First: low melting efficiency, can not meet the needs of molding casting. We think about this issue is related to the number of rows and outlets. Because the tuyere row determines the melting zone height, tuyere row less melting zone