metal-stream inoculation造句

• The defect of crack in the engine block of 8170 diesel engine has beem researched and analyzed , which can be solved and avoided through the following measures : optimizing the structure of engine block casting , improving alloying technology , perfecting pouring process and adopting normal inoculation before furnace and metal - stream inoculation during the period of pouring
  摘要对8170缸体裂纹缺陷进行了探讨分析，通过优化铸件结构，改进合金化工艺，完善浇注工艺以及随流孕育与炉前孕育工艺相结合等措施，使裂纹缺陷解决。