发明申请
US20070294891A1 Method of forming a catalytic converter from a radially deformed pre-form member
审中-公开
从径向变形的预成型构件形成催化转化器的方法
- 专利标题： Method of forming a catalytic converter from a radially deformed pre-form member
- 专利标题（中）： 从径向变形的预成型构件形成催化转化器的方法
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申请号： US11474200申请日： 2006-06-23
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公开(公告)号： US20070294891A1公开(公告)日： 2007-12-27
- 发明人: Haimian Cai , Xiaojun Zhang , Peng Xiao
- 申请人： Haimian Cai , Xiaojun Zhang , Peng Xiao
- 主分类号： B21D51/16
- IPC分类号： B21D51/16
摘要：
A method is provided for manufacturing a catalytic converter. A metallic tubular member is provided. A section of the metallic tubular member is deformed radially inward to form a neck portion. The neck portion has a diameter less than an initial diameter of the metallic tubular member. The tubular member is separated at substantially an axial midpoint of the neck portion for obtaining a first pre-form member having a first conical-shaped end. At least one catalytic element is inserted in the first pre-form member. An outer surface of the first pre-form member is deformed radially inward for securing the catalytic element within the first pre-form member. The first pre-form member is spin-formed for forming a second conical-shaped end opposite the first conical-shaped end.
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