发明名称 |
Spin-forming method for making catalytic converter |
摘要 |
A method is provided for forming a catalytic converter that includes a catalyst substrate having a noncircular circumference and surrounded by a metal housing. The catalyst substrate is initially measured to determine the radial dimension of the substrate circumference relative to a central axis. The substrate is wrapped in a compressible mat and arranged within a metal tube. The arrangement is subjected to a spin-forming process that forms the metal tube about the catalyst substrate. The spin-forming process includes rotating the metal tube about the substrate axis, while concurrently urging a metal-forming tool against the metal tube. The metal-forming tool is programmed to follow a metal-forming path corresponding to the substrate circumference plus a predetermined radial distance. In this manner, a metal housing is formed having a noncircular circumference corresponding in shape to the catalyst substrate and spaced apart by a uniform insulative layer. |
申请公布号 |
GB0315822(D0) |
申请公布日期 |
2003.08.13 |
申请号 |
GB20030015822 |
申请日期 |
2003.07.07 |
申请人 |
VISTEON GLOBAL TECHNOLOGIES, INC. |
发明人 |
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分类号 |
B21D22/14;B21D53/88;F01N3/28;F01N13/18 |
主分类号 |
B21D22/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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