公开(公告)号：US4806163A

公开(公告)日：1989-02-21

申请号：US122498

申请日：1987-11-05

申请人： Hakaru Nakato ,  Tsutomu Nozaki ,  Yasuhiro Habu ,  Hiromu Oka ,  Tsunehiro Ueda ,  Takao Koshikawa ,  Hideaki Kishimoto ,  Fumitaka Shimokawa

发明人： Hakaru Nakato ,  Tsutomu Nozaki ,  Yasuhiro Habu ,  Hiromu Oka ,  Tsunehiro Ueda ,  Takao Koshikawa ,  Hideaki Kishimoto ,  Fumitaka Shimokawa

IPC分类号： C21C7/076 ,  B22D11/10 ,  B22D11/108 ,  B22D11/111 ,  B28B7/36 ,  C03C3/112

CPC分类号： B22D11/111

摘要： A mold additive for use in continuous casting, which includes a base material having a chemical composition of CaO--BaO--SiO.sub.2 --F system, and contains 2-15% by weight in total of at least one carbonate of alkali and alkaline earth metals, 2-30% by weight in total of at least one fluoride of alkali and alkaline earth metals and 0.2-10% by weight of carbon, and, if necessary, 2-10% by weight in total of at least one oxide of Fe, Mn and Ni, and has a solidification temperature of not more than 900.degree. C. and a viscosity at 1,300.degree. C. of not more than 3 poises. The base material has a weight ratio of (CaO+BaO)/SiO.sub.2 of 0.6-2.5 and contains not less than 2% by weight of BaO and 2-15% by weight of F.

摘要翻译： 一种用于连续铸造的模具添加剂，其包括具有化学组成为CaO-BaO-SiO 2 -F体系的基材，并且含有2-15重量％的至少一种碱金属和碱土金属的碳酸盐， 2-30重量％的碱金属和碱土金属的至少一种氟化物和0.2-10重量％的碳，如果需要，总共含有2-10重量％的至少一种Fe， Mn和Ni，固化温度不超过900℃，1,300℃下的粘度不大于3泊。 基材的重量比（CaO + BaO）/ SiO 2为0.6〜2.5，含有不少于2重量％的BaO和2〜15重量％的F。