• 主题
高级搜索  >
历史搜索 清空历史
首页> 外国专利> ADDITIVE FOR PRODUCING SPHEROIDAL GRAPHITE CAST IRON, PRODUCTION OF SPHEROIDAL GRAPHITE CAST IRON AND CASTING PARTS MADE OF SPHEROIDAL GRAPHITE CAST IRON

ADDITIVE FOR PRODUCING SPHEROIDAL GRAPHITE CAST IRON, PRODUCTION OF SPHEROIDAL GRAPHITE CAST IRON AND CASTING PARTS MADE OF SPHEROIDAL GRAPHITE CAST IRON

机译：制备球状石墨铸铁的添加剂，球状石墨铸铁的生产及铸件的铸造

页面导航
  • 摘要
  • 著录项
  • 相似文献

摘要

PROBLEM TO BE SOLVED: To provide an additive for producing a spheroidal graphite cast iron which promotes ferritic structure of matrix in the spheroidal graphite cast iron by increasing number of graphite and can efficiently prevent the chilling, and a method for producing the spheroidal graphite cast iron which distributes many fine graphite grains and has small chilled area ratio. ;SOLUTION: The additive for producing the spheroidal graphite cast iron contains magnesium oxide fine powder having ≥90 wt.% purity and 0.001-10 μm average grain diameter and one or more kinds of nodulizing material, inoculant and inoculant having graphite spheroidizing action. The magnesium oxide fine powder increases nuclei of the graphite in the molten iron and in this result, member of graphite grains is increased. Further, the other additive for producing the spheroidal graphite cast iron, contains metallic oxide having smaller affinity with oxygen than the graphite spheroidizing element used to the graphite spheroidizing treatment at the molten iron temp. executing the graphite spheroidizing treatment. The spheroidal graphite cast iron distributing many fine graphite grains and having small chilled area ratio, is produced by adding the metal compound which can produce the oxide of the spheroidizing element by oxidizing the spheroidizing element, into the molten iron.;COPYRIGHT: (C)1998,JPO
机译：解决的问题：提供一种用于制造球墨铸铁的添加剂，该添加剂通过增加石墨的数量来促进球墨铸铁中的基体的铁素体结构，并且可以有效地防止冷却，以及一种球墨铸铁的制造方法。它分布着许多细小的石墨晶粒，并且具有较小的冷却面积比。 ;解决方案：用于生产球墨铸铁的添加剂包含纯度≥90 wt。％，平均粒径为0.001-10μm的氧化镁细粉和一种或多种具有石墨球化作用的结瘤材料，孕育剂和孕育剂。氧化镁细粉增加了铁水中石墨的核，结果，增加了石墨颗粒的数量。此外，用于生产球墨铸铁的另一种添加剂所含的金属氧化物与氧的亲合力比在铁水温度下用于石墨球化处理的石墨球化元素要小。进行石墨球化处理。球墨铸铁是将分布许多细小的石墨晶粒并且具有较小的冷面积比的球墨铸铁通过向熔融铁中添加可通过氧化球化元素而产生球化元素的氧化物的金属化合物制成;版权：（C） 1998年

著录项

相似文献

  • 专利
  • 外文文献
  • 中文文献
获取专利

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号