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46 条记录 (耗时 0.012 秒)

    Method and apparatus for the extrusion of tubes of easily oxidized materials
    41.
    发明授权
    Method and apparatus for the extrusion of tubes of easily oxidized materials 失效
    用于挤出容易氧化的材料的管的方法和装置

    公开(公告)号：US4316373A

    公开(公告)日：1982-02-23

    申请号：US120755

    申请日：1980-02-12

    申请人： Franz-Josef Zilges ,  Heinrich Kutz

    发明人： Franz-Josef Zilges ,  Heinrich Kutz

    IPC分类号： B21C23/20 ,  B21C23/08 ,  B21C23/21 ,  B21C29/00 ,  B21C35/02 ,  B21B45/02

    CPC分类号： B21C35/02 ,  B21C23/085 ,  B21C23/218 ,  B21C29/00 ,  B21C29/006

    摘要： A tube extrusion press extrudes tubes through the annular space formed when a mandrel projects into the aperture of an extrusion die. In order to prevent oxidation of the extruded product, the outside of the tube passes into a cooling section immediately downstream of the die, and a protective gas is blown into the interior of the tube through the mandrel which is hollow and has an opening in its tip. Both the inside and the outside of the tube may be coated with a liquid emulsion, and the hollow mandrel can have internal channels for the passage of a cooling liquid.

    摘要翻译： 管挤压机将管穿过当心轴伸入挤压模的孔中时形成的环形空间。 为了防止挤出产品的氧化，管的外部进入模具的紧下游的冷却部分，并且保护气体通过中空的心轴吹入管的内部，并且在其中具有开口 小费。 管的内部和外部都可以涂覆有液体乳液，并且空心心轴可以具有用于冷却液体通过的内部通道。

    Method and apparatus for extrusion of workpieces
    43.
    发明授权
    Method and apparatus for extrusion of workpieces 失效
    挤压工件的方法和装置

    公开(公告)号：US3808865A

    公开(公告)日：1974-05-07

    申请号：US23470372

    申请日：1972-03-15

    申请人： ALUSUISSE

    发明人： WAGNER A ,  HESSE J

    IPC分类号： B21C29/00 ,  B21C29/04 ,  B21D37/16

    CPC分类号： B21C29/04 ,  B21C29/00 ,  B21C29/006

    摘要： The invention relates to a method and apparatus for extrusion of workpieces. Especially the invention is concerned with a method and apparatus for extruding workpieces whereby a cooling medium is applied to transfer excessive heat from the apparatus in order to increase extrucion speed. The cooling medium applied in a gaseous state is further used to create a protective atmosphere at the downstream end of the apparatus to eliminate the oxidizing effects of normal air.

    摘要翻译： 本发明涉及一种用于挤压工件的方法和装置。 特别地，本发明涉及用于挤压工件的方法和装置，由此施加冷却介质以从设备传递过多的热量以增加外推速度。 进一步使用处于气态的冷却介质，在设备的下游端产生保护气氛，以消除正常空气的氧化作用。

    Method of manufacturing copper tubes by means of hydrostatic extrusion and press equipment for carrying out the method
    44.
    发明授权
    Method of manufacturing copper tubes by means of hydrostatic extrusion and press equipment for carrying out the method 失效
    通过疏水挤压制造铜管的方法和实施方法的新闻设备

    公开(公告)号：US3774431A

    公开(公告)日：1973-11-27

    申请号：US3774431D

    申请日：1972-07-10

    申请人： ASEA AB

    发明人： STROMBLAD I ,  HOGLAND R

    IPC分类号： B21C23/00 ,  B21C35/02 ,  C22F1/08 ,  B21C31/00

    CPC分类号： C22F1/08 ,  B21C23/002 ,  B21C23/007 ,  B21C29/006 ,  B21C35/02

    摘要： In the manufacture of copper tubes by hydrostatic extrusion, a tubular billet is inserted in an extrusion press and extruded through a gap between a die and a mandrel to form a tube having the desired cross-section by hydrostatic pressure. The tube which is formed is led to a cooling zone at such a distance from the extrusion press that the time between shaping and cooling exceeds the recrystallization time required for annealing copper. The extruded tube is surrounded by an inert gas within a conductor tube during the passage from the press to the cooling zone.

    摘要翻译： 在通过静液压挤出制造铜管时，将管状坯料插入挤压机中并通过模具和心轴之间的间隙挤出，以通过静水压力形成具有所需横截面的管。 所形成的管被引导到与挤压机相距一定距离的冷却区，成形和冷却之间的时间超过退火铜所需的再结晶时间。 在从压机到冷却区的通道期间，挤出的管被导体管内的惰性气体包围。