| 摘要 |
<p>A tool structure has a runner system (200) which includes at least one branching runner (202) which branches in at least two directions forming at least a first pair of branch runners (204, 206) for receiving laminar flowing material. Each branch runner (202) receives material having similar conditions from side-to-side of a bisecting plane of that runner. This material also has dissimilar conditions from side-to-side of a perpendicular plane of each branch runner. A repositioner (210) repositions the dissimilar conditions of the laminar flowing material to preselected positions in circumferential directions around the center of the flow paths of each runner (204, 206). Each pair of branch runners (204, 206) is joined which causes the flow from each of these runners to form a half of a joint stream (256) which has conditions across its flow path that are significantly balanced from side-to-side of two perpendicular planes bisecting the flow path of the joint stream.</p> |
