发明名称 |
Roller die preformer for wide extrusions and method of extruding |
摘要 |
<p>A roller die preformer (16) for use in an extrusion system (10) to form wide extruded components, such as a rubber tire tread, on a surface (22) of a roller (18). The roller die preformer (16) includes a flow inlet (28), a flow outlet (32) and a laterally expanding flow channel (30) extending from the flow inlet to the flow outlet. A flow restrictor (48) is configured within the flow channel (30) to urge the flow of material toward the lateral extremities of the flow channel to thereby form an extruded component (20) at the flow outlet (32) having a lateral width which is greater than the lateral width of the flow inlet (28) of the preformer (16). <IMAGE></p> |
申请公布号 |
EP1491318(A2) |
申请公布日期 |
2004.12.29 |
申请号 |
EP20040102683 |
申请日期 |
2004.06.14 |
申请人 |
THE GOODYEAR TIRE & RUBBER COMPANY |
发明人 |
LOOMAN, ERNEST WILFORD, JR.;TURNER, BRUCE JOSEPH |
分类号 |
B29C47/12;B29C47/32;(IPC1-7):B29C47/32 |
主分类号 |
B29C47/12 |
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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