公开(公告)号：EP3230232B1

公开(公告)日：2018-08-15

申请号：EP14835725.4

申请日：2014-12-10

申请人： Institut "Jozef Stefan" ,  Razvojni Center eNem Novi Materiali d.o.o.

发明人： RAMSAK, Irena ,  RAZPOTNIK, Marija ,  MAKOVSEK, Katja ,  KUSCER HROVATIN, Danjela ,  DRNOVSEK, Silvo ,  HOLC, Janez

IPC分类号： C04B35/20 ,  C04B35/626 ,  C04B35/63 ,  C04B35/632 ,  C04B35/634 ,  C04B35/64

CPC分类号： C04B35/20 ,  C04B35/6261 ,  C04B35/62625 ,  C04B35/62655 ,  C04B35/63 ,  C04B35/632 ,  C04B35/634 ,  C04B35/64 ,  C04B2235/321 ,  C04B2235/3272 ,  C04B2235/3445 ,  C04B2235/349 ,  C04B2235/447 ,  C04B2235/5436 ,  C04B2235/6027 ,  C04B2235/606 ,  C04B2235/6567 ,  C04B2235/72 ,  C04B2235/725

摘要： The object of the invention is a process for producing alkaline steatite ceramics having controlled electrical properties for electrotechnology. Alkaline steatite ceramics of the invention belongs to a group of magnesium silicates of C 220 type. Steatite ceramics is an electrical insulator with a relatively low electrical conductivity at increased temperature. To produce the alkaline steatite ceramics the materials talc, kaolin, clays, bentonite and dolomite were used. The mixture can contain up to 1.5 % by weight of iron oxides. After the mixture is ground and the products are formed, the blanks are fired at a temperature in the range from 1280 to 1340 °C for 1 hour to 10 hours. Alkaline steatite ceramics with bentonite without added kaolin has specific electrical resistance at 400 °C 1.4 x 106 Ohm m. The ceramics, in which the total content of bentonite is replaced by kaolin, has specific electrical resistance at 400 °C more than 1 x 108 Ohm m.

公开(公告)号：EP3230232A1

公开(公告)日：2017-10-18

申请号：EP14835725.4

申请日：2014-12-10

申请人： Institut "Jozef Stefan" ,  Razvojni Center eNem Novi Materiali d.o.o.

发明人： RAMSAK, Irena ,  RAZPOTNIK, Marija ,  MAKOVSEK, Katja ,  KUSCER HROVATIN, Danjela ,  DRNOVSEK, Silvo ,  HOLC, Janez

IPC分类号： C04B35/20 ,  C04B35/626 ,  C04B35/63 ,  C04B35/632 ,  C04B35/634 ,  C04B35/64

CPC分类号： C04B35/20 ,  C04B35/6261 ,  C04B35/62625 ,  C04B35/62655 ,  C04B35/63 ,  C04B35/632 ,  C04B35/634 ,  C04B35/64 ,  C04B2235/321 ,  C04B2235/3272 ,  C04B2235/3445 ,  C04B2235/349 ,  C04B2235/447 ,  C04B2235/5436 ,  C04B2235/6027 ,  C04B2235/606 ,  C04B2235/6567 ,  C04B2235/72 ,  C04B2235/725

摘要： The object of the invention is a process for producing alkaline steatite ceramics having controlled electrical properties for electrotechnology. Alkaline steatite ceramics of the invention belongs to a group of magnesium silicates of C 220 type. Steatite ceramics is an electrical insulator with a relatively low electrical conductivity at increased temperature. To produce the alkaline steatite ceramics the materials talc, kaolin, clays, bentonite and dolomite were used. The mixture can contain up to 1.5 % by weight of iron oxides. After the mixture is ground and the products are formed, the blanks are fired at a temperature in the range from 1280 to 1340 °C for 1 hour to 10 hours. Alkaline steatite ceramics with bentonite without added kaolin has specific electrical resistance at 400 °C 1.4 x 106 Ohm m. The ceramics, in which the total content of bentonite is replaced by kaolin, has specific electrical resistance at 400 °C more than 1 x 108 Ohm m.

摘要翻译： 本发明的目的是生产用于电工技术的具有受控电学性质的碱性滑石陶瓷的方法。 本发明的碱性滑石陶瓷属于一组C 220型硅酸镁。 滑石陶瓷是在升高的温度下具有相对低电导率的电绝缘体。 为了生产碱性滑石陶瓷，使用滑石，高岭土，粘土，膨润土和白云石材料。 该混合物可以含有高达1.5重量％的氧化铁。 在将混合物研磨并形成产物后，将坯料在1280-1340℃的温度下烧制1小时至10小时。 具有未添加高岭土的膨润土的碱性滑石陶瓷在400℃下具有1.4×10 6欧姆米的比电阻。 其中膨润土的总含量被高岭土取代的陶瓷在400℃下的比电阻大于1×10 8欧姆·米。