nodular iron

基本解釋

Foundry method, melting process, heat treatment process for nodular iron crankshaft was introduced and the measures to prevent common defects were described.
介紹了球墨鑄鉄曲軸的鑄造方法、熔鍊工藝和熱処理工藝，同時描述了預防一般缺陷的措施。
The morphology of austenite dendrites in shrinkage porosity in nodular iron is displayed by the color etching technique and the formation mechanism of shrinkage porosity has been analyzed.
採用著色腐蝕技術(shù)，金相顯示了球墨鑄鉄縮松區(qū)中奧氏躰枝晶組織形貌，分析了球鉄縮松的形成機制。
The production conditions, foundry method and melting process for mass production of nodular iron couplers used for large trucks were introduced.
介紹大批量生産大型拖車用球墨鑄鉄連接器的生産條件、鑄造工藝、熔鍊工藝。