公开(公告)号：US4720201A

公开(公告)日：1988-01-19

申请号：US777738

申请日：1985-09-19

申请人： Kiyoshi Nakamura ,  Syozi Okada ,  Toshio Kumiyama

发明人： Kiyoshi Nakamura ,  Syozi Okada ,  Toshio Kumiyama

IPC分类号： C04B35/584 ,  B41J2/265 ,  B41J3/12 ,  C04B35/58

CPC分类号： B41J2/265

摘要： A printer guide member for guiding print wires in a dot matrix printer, which comprises a thin ceramic sintered body containing 60% by weight or more of Si.sub.3 N.sub.4 and having a plurality of guide holes perforated therethrough. In addition to Si.sub.3 N.sub.4, this thin ceramic sintered body further includes (a) not more 10% by weight of Al.sub.2 O.sub.3 and (B) at least one component as an additive selected from the group consisting of (i) not more than 10% by weight of a rare earth element oxide, (ii) not more than 10% by weight of AlN, and (iii) not more than 10% by weight of at least one oxide selected from the group consisting of TiO.sub.2, MgO and ZrO.sub.2.

摘要翻译： 一种用于在点阵式打印机中引导打印线的打印机引导构件，其包括含有60重量％以上的Si 3 N 4的薄陶瓷烧结体，并且具有穿过其的多个引导孔。 除了Si 3 N 4之外，该陶瓷烧结体还包含（a）不超过10重量％的Al 2 O 3和（B）至少一种作为添加剂的成分，所述添加剂选自（i）不超过10重量％ 的稀土元素氧化物，（ii）不大于10重量％的AlN，和（iii）不超过10重量％的选自TiO 2，MgO和ZrO 2中的至少一种氧化物。