公开(公告)号：US08328965B2

公开(公告)日：2012-12-11

申请号：US12307237

申请日：2007-06-18

申请人： Maurizio Bronzato ,  Zeljko Ilibasic ,  Franco Zanardi

发明人： Maurizio Bronzato ,  Zeljko Ilibasic ,  Franco Zanardi

IPC分类号： C21D5/00 ,  C22C37/00

CPC分类号： C21D5/00 ,  C21D1/185 ,  C21D1/20 ,  C21D1/46 ,  C21D5/02 ,  C21D2211/005 ,  C21D2211/009 ,  C22C37/04 ,  C22C37/10

摘要： A method for manufacturing mechanical components made of spheroidal cast iron, comprising the following steps: —providing a casting of a mechanical component made of cast iron having a structure which is at least partially ferritic and has a carbon content ranging from 2.5% to 4.0% and a silicon content ranging from 2.0% to 3.5%; —bringing the cast iron casting having an at least partially ferritic structure to a temperature for partial austenitizing which is higher than the lower limit austenitizing temperature (Ac1) and lower than the upper limit austenitizing temperature (Ac3) for a time required to obtain an at least partially austenitic structure; —performing a thermal treatment for isothermal hardening at a temperature ranging from 250° C. to 400° C. in order to obtain a matrix which has at least partially a pearlitic-ferritic or perferritic structure.

摘要翻译： 一种用于制造由球墨铸铁制成的机械部件的方法，包括以下步骤：提供具有至少部分铁素体且碳含量为2.5％至4.0％的结构的由铸铁制成的机械部件的铸件， 硅含量范围为2.0％〜3.5％; 将具有至少部分铁素体结构的铸铁铸件压制成高于下限奥氏体化温度（Ac1）并低于上限奥氏体化温度（Ac3）的部分奥氏体化温度达到所需时间 最小部分奥氏体结构; - 在250℃至400℃的温度下进行等温硬化的热处理，以获得至少部分具有珠光体 - 铁素体或非铁酸盐结构的基体。

公开(公告)号：US20090320971A1

公开(公告)日：2009-12-31

申请号：US12307237

申请日：2007-06-18

申请人： Maurizio BRONZATO ,  Zeljko ILIBASIC ,  Franco ZANARDI

发明人： Maurizio BRONZATO ,  Zeljko ILIBASIC ,  Franco ZANARDI

IPC分类号： C21D5/00 ,  C22C37/00

CPC分类号： C21D5/00 ,  C21D1/185 ,  C21D1/20 ,  C21D1/46 ,  C21D5/02 ,  C21D2211/005 ,  C21D2211/009 ,  C22C37/04 ,  C22C37/10

摘要： A method for manufacturing mechanical components made of spheroidal cast iron, comprising the following steps: -providing a casting of a mechanical component made of cast iron having a structure which is at least partially ferritic and has a carbon content ranging from 2.5% to 4.0% and a silicon content ranging from 2.0% to 3.5%; -bringing the cast iron casting having an at least partially ferritic structure to a temperature for partial austenitizing which is higher than the lower limit austenitizing temperature (Ac1) and lower than the upper limit austenitizing temperature (Ac3) for a time required to obtain an at least partially austenitic structure; -performing a thermal treatment for isothermal hardening at a temperature ranging from 250° C. to 400° C. in order to obtain a matrix which has at least partially a pearlitic-ferritic or perferritic structure.

摘要翻译： 一种用于制造由球墨铸铁制成的机械部件的方法，包括以下步骤：提供具有至少部分铁素体且碳含量为2.5％至4.0％的结构的由铸铁制成的机械部件的铸件， 硅含量范围为2.0％〜3.5％; 将具有至少部分铁素体结构的铸铁铸件压制成高于下限奥氏体化温度（Ac1）并低于上限奥氏体化温度（Ac3）的部分奥氏体化温度达到所需时间 最小部分奥氏体结构; - 在250℃至400℃的温度下进行等温硬化的热处理，以获得至少部分具有珠光体 - 铁素体或非铁酸盐结构的基体。