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应用树脂材料的冷芯盒射芯是一九六八年以后出现的一种新工艺,到目前为止在国内外尚处于试验及研究阶段,它以在常温下快速硬化(不需要高温硬化)、可以采用铝金属芯盒或非金属芯盒等特点,特别适用于中小批量多品种的生产条件,而受到广泛的注意。国内的制芯生产,在无产阶级文化大革命推动下,有了较快的发展。不少工厂采用了比较先进的制芯工艺和技术,如热芯盒射芯、壳芯等。但是,由于铸铁模具制造周期长、电热
Application of cold-core material resin box core is a new technology after 1968, so far at home and abroad is still in the experimental and research stage, it is at room temperature rapid hardening (without the need for high temperature hardening) Aluminum metal core box can be used or non-metallic core box and other characteristics, especially for small and medium-sized batches of varieties of production conditions, and has attracted widespread attention. The core production in the country, with the impetus of the Great Proletarian Cultural Revolution, has enjoyed rapid development. Many factories have adopted the more advanced core technology and technology, such as hot core box core, shell core. However, due to the long manufacturing cycle of cast iron molds, electric heating