VERFAHREN ZUR HERSTELLUNG VON VERLORENEN KERNEN ODER FORMTEILEN ZUR GUSSTEILPRODUKTION

    公开(公告)号:EP2916976A1

    公开(公告)日:2015-09-16

    申请号:EP14786500.0

    申请日:2014-10-17

    IPC分类号: B22C1/18 B22C15/24

    摘要: The invention relates to a method for producing lost cores or molded parts for the production of cast parts, in which a basic molding material is mixed with an alkali silicate or water glass binder and a lost core or a molded part for the production of cast parts is formed using a core shooter in a core box, wherein the alkali silicate or water glass binder contains an alkali silicate or water glass solution having a modulus of 1.5 to 3.5 and natural and/or synthetic additives in a proportion of 0.1 to 25% by weight measured with respect to the total amount of binder, with a particle size of less than 5 μm and the natural and/or synthetic additives are at least aluminum silicate, magnesium silicate and sodium aluminum silicate, each having a proportion of 1 to 5% by weight measured with respect to the total amount of binder. The lost core or the other molded part is formed in an unheated core box, and the lost core thus formed or the molded part is cured using hot air.

    摘要翻译: 本发明涉及一种制造用于生产铸造件的失磁芯或模制零件的方法,其中将碱性模塑材料与碱性硅酸盐或水玻璃粘合剂以及用于生产铸件的失芯或模制零件混合 使用核心盒中的芯射枪形成,其中碱性硅酸盐或水玻璃粘合剂含有模量为1.5至3.5的碱性硅酸盐或水玻璃溶液,天然和/或合成添加剂的比例为0.1至25% 相对于粘合剂总量测量的重量,其粒度小于5μm,天然和/或合成添加剂至少为硅酸铝,硅酸镁和硅酸钠铝,其比例为1至5% 相对于粘合剂的总量测量。 失去的芯部或另一个模制部件形成在未加热的芯盒中,并且由此形成的损失的芯或模制部件使用热空气固化。