发明名称 |
método para coextrusar um fluxo, e, extrusora. |
摘要 |
Apparatus is described for coextruding two materials A and B, in which B is extruded on A through a port (3), in which the separating wall between the flows of A and B is formed as a flap closure (4) which can open and close by pivoting movements and is adapted to adjust its position in accordance with the difference between the pressures of A and B acting on it. The die is circular for extruding tubular flows and the flap closure is ring-formed and at least the hinge forming part of it consists of a springy blade having its surfaces generally perpendicular to the axis of the die. The tubular flows preferably exit in a direction substantial parallel to the axis of the die. <IMAGE> |
申请公布号 |
BR0110041(B1) |
申请公布日期 |
2009.12.01 |
申请号 |
BR20010110041 |
申请日期 |
2001.04.11 |
申请人 |
|
发明人 |
OLE-BENDT RASMUSSEN |
分类号 |
B29C47/06;A21C11/16;A23G3/20;A23G9/28;A23L1/00;A23P1/12;B29C47/08;B29C47/12;B29C47/16;B29C47/20;B29C47/22;B29C47/58;B29K23/00;B29L9/00 |
主分类号 |
B29C47/06 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|