发明名称 |
Method and apparatus for processing potentially explosive and sensitive materials for forming longitudinally perforated extrudate strands. |
摘要 |
<p>A manifolded (6), multiple-pin die (9) apparatus and method processes potentially explosive material to form longitudinally perforated cylindrical pellets for use as gun propellants. A main entrance passage formed in mating manifold blocks gradually changes in cross-sectional configuration from circular to figure-eight (12), and then branches in a gently curved manner. The divergent branches formed then further branch in the same manner and feed circular cross-section passages leading to extruding dies wherein a series of die pins extend axially through a discharge passage. Each die comprises a central core member supporting an outer shell via radial ribs which are configured to form flow passages of hour-glass configuration. No change of flow direction in the entire apparatus exceeds fifteen degrees.</p> |
申请公布号 |
EP0357004(A2) |
申请公布日期 |
1990.03.07 |
申请号 |
EP19890115944 |
申请日期 |
1989.08.29 |
申请人 |
APV CHEMICAL MACHINERY INC. |
发明人 |
LOOMANS, BERNARD A.;KOWALCZYK, JAMES E.;JONES, JERRY W. |
分类号 |
B29B9/06;B01J2/20;B29C47/20;B29C47/26;B29C47/70;C06B21/00 |
主分类号 |
B29B9/06 |
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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