公开(公告)号：US4945004A

公开(公告)日：1990-07-31

申请号：US186152

申请日：1988-04-26

申请人： Gerhard Sprintschnik ,  Walter Niederstaetter ,  Kurt Reiss ,  Wolfgang V. Asten ,  Gunther Scharf ,  Barbara Grzemba

发明人： Gerhard Sprintschnik ,  Walter Niederstaetter ,  Kurt Reiss ,  Wolfgang V. Asten ,  Gunther Scharf ,  Barbara Grzemba

IPC分类号： C23G1/14 ,  B41N1/08 ,  B41N3/00 ,  C22C21/00 ,  C22F1/00 ,  C22F1/04 ,  C23F1/00 ,  C23F1/20 ,  C25D11/02 ,  C25D11/04 ,  C25F3/04

CPC分类号： B41N1/083 ,  C22C21/00

摘要： The invention is directed toward a base material for aluminium offset printing plates having improved heat stability comprising an aluminum alloy consisting of from about 0.2 to about 0.6% by weight of iron, less than about 0.25% by weight silicon and copper combined, from about 0.1 to about 0.3% by weight manganese and the remainder being aluminum and trace production impurities, said base material further characterized as containing secondary precipitates in the form of phases of the Al Mn Si: Al Fe: Al Mn type which bear a ratio to one another of from about 1:1:2 to about 1:1:3, the mean particle size being from about 0.25 to about 0.010 micron with a maximum particle size of less than about 0.3 micron and further containing a precipitation structure with a degree of dispersion of less than about 50 phases per cubic micron and a process for producing such material. The sheet material according to this invention may be uniformly roughened in either HCl or HNO.sub.3 electrolyte baths under very similar process parameters.

摘要翻译： 本发明涉及一种具有改进的热稳定性的铝胶印板的基材，其包括由约0.2至约0.6重量％的铁，小于约0.25重量％的硅和铜组合的铝合金，约0.1 至约0.3重量％的锰，其余为铝和痕量的生产杂质，所述的基材进一步表征为含有彼此成比例的Al Mn Si：Al Fe：Al Mn型的相的二次析出物 约1：1：2至约1：1：3，平均粒度为约0.25至约0.010微米，最大粒径小于约0.3微米，并且还含有具有分散度的沉淀结构 小于约50个相/立方米的微晶和一种生产这种材料的方法。 根据本发明的片材可以在非常相似的工艺参数下在HCl或HNO 3电解质浴中均匀地粗糙化。

公开(公告)号：US4715903A

公开(公告)日：1987-12-29

申请号：US835559

申请日：1986-03-03

申请人： Wolfgang V. Asten ,  Karl H. Dorner ,  Hartmut Scheel ,  Volker Wurstle

发明人： Wolfgang V. Asten ,  Karl H. Dorner ,  Hartmut Scheel ,  Volker Wurstle

IPC分类号： B41N1/08 ,  C22C21/00 ,  C22C21/06 ,  C22C21/12 ,  C22F1/00 ,  C22F1/04 ,  C22F1/047

CPC分类号： C22F1/047 ,  B41N1/083 ,  C22F1/04

摘要： An aluminum offset coil, having a surface zone of a predominantly recrystallized globular, fine grain structure, and a core zone of a greatly work-hardened structure, for use in offset printing plates, and a process for its preparation.

摘要翻译： 一种铝偏移线圈，其具有主要重结晶的球状，细晶粒结构的表面区域和用于胶版印刷版的大量加工硬化结构的芯区域及其制备方法。