铸造工业各道工序,特别是与铸造工序有关联的工序,有很多公害问题(列于表1)。对现在的造型给予工艺学估计(如表2所示),由此得知:水溶性铸型可作为无公害措施而很受重视。无公害铸型是指“与地区社会相适应的无公害、作业环境良好,并节省资源、能量与省力”,为此就必须: There is a lot of pollution problems in all steps of foundry industry, especially those related to the foundry process (listed in Table 1). Given the technical estimate of the present form (as shown in Table 2), it is known that water-soluble molds are valued as pollution-free measures. Pollution-free molds refer to “pollution-free, good working environment, resource saving, energy saving and labor saving” in accordance with the local society. To do this, we must: