一、概述 大量生产的铸造车间,目前采用着多种制芯方法。按主要方法分,各国大体上可分两种情况:比如日本以壳芯为主,欧美以热芯盒为主。主要原因之一是日本的气候湿度大。而热芯盒法不管是呋喃系树脂还是酚醛系树脂,吸湿性都比较大。 大多数国家以热芯盒为主。但是,这种方法存在某些缺点,诸如:砂子存放期短、流动性差、有臭味、透硬性(throughcure)差、吸湿性大、容易产生气孔等。为了解决这些问题,同时为了节能和改善环境,研究并发展了温芯盒法(Warm-box process)。该法是1978年首先由美国提出的,1979年在 First, an overview of mass-produced foundry, currently using a variety of core-making methods. According to the main method, countries generally can be divided into two situations: For example, Japan is mainly shell core, Europe and the United States to the hot box-based. One of the main reasons is the high humidity in Japan. The hot box method regardless of furan resin or phenolic resin, hygroscopicity is relatively large. Most countries with hot box-based. However, this method has some disadvantages such as short sand storage period, poor fluidity, odor, poor throughcure, high hygroscopicity, and easy generation of blowholes. In order to solve these problems and to save energy and improve the environment, a warm-box process has been researched and developed. The law was first proposed by the United States in 1978 and was in 1979