Combined method of area reduction
    11.
    发明授权
    Combined method of area reduction 失效
    组合减少方法

    公开(公告)号:US3747384A

    公开(公告)日:1973-07-24

    申请号:US3747384D

    申请日:1972-03-09

    Applicant: ASEA AB

    Inventor: NILSSON J

    CPC classification number: B21C23/007

    Abstract: In the hydrostatic extrusion of a body through an opening, such as a die opening, the hydrostatic extrusion is begun by raising the pressure of the pressure fluid to a predetermined amount, and thereafter while continuing such pressure applying a tensile force to a portion of the body which is beyond the opening. The portion extending through the die may be preformed, or may be formed by the starting of hydrostatic extrusion. The end of the billet which engages the die is formed with double conicity.

    Abstract translation: 在通过诸如模具开口的开口进行的静态挤压中,通过将压力流体的压力升高到预定的量来开始静液压挤出,然后在继续施加拉力以使其部分的压力 超出开放的身体 延伸穿过模具的部分可以预成型,或者可以通过静液压挤出的形成。 与模具接合的坯料的端部形成为双锥度。

    Press for hydrostatic extrusion of tubing
    12.
    发明授权
    Press for hydrostatic extrusion of tubing 失效
    压缩管道挤压

    公开(公告)号:US3727444A

    公开(公告)日:1973-04-17

    申请号:US3727444D

    申请日:1972-03-01

    Applicant: ASEA AB

    Inventor: NILSSON J

    CPC classification number: B21C23/007

    Abstract: In the hydrostatic extrusion of tubing, a hollow billet is pressed forward into the conical die opening of the press by a following piston until the material of the billet is pressed inwardly against the mandrel and is shaped to the conical surface of the die, after which pressure fluid is admitted around the billet for hydrostatic extrusion.

    Abstract translation: 在管道的静水挤压中,中空坯料通过后续活塞向前压入压力机的圆锥形模具开口中,直到钢坯的材料向内压靠在心轴上并被成形为模具的锥形表面,此后 压力流体被容纳在坯料周围用于静液压挤出。

    Method for hydrostatic extrusion of tubes
    13.
    发明授权
    Method for hydrostatic extrusion of tubes 失效
    管道疏水挤压方法

    公开(公告)号:US3789642A

    公开(公告)日:1974-02-05

    申请号:US3789642D

    申请日:1973-06-05

    Applicant: ASEA AB

    Inventor: NILSSON J

    CPC classification number: B21C23/007 B21C23/217

    Abstract: A press for hydrostatic extrusion of tubes includes a high pressure cylinder axially displaceable in a press stand with a die insertable into the cylinder and a pressure generating punch insertable into the cylinder to generate the pressure for extrusion. A mandrel is carried by a rod which passes through the pressure-generating punch. A hollow billet is inserted into such a structure which has the central opening therethrough at the point adjacent the die of smaller cross-section than that of the mandrel. When the mandrel is advanced towards the die, it engages the narrowed portion of the bore of the billet and presses it against the die, holding it there while the pressure chamber is advanced around the billet and the extrusion takes place.

    Abstract translation: 用于静液压挤出管的压力机包括可在压力机架中轴向移动的高压气缸,其中可插入气缸的模具和可插入气缸中的压力产生冲头以产生用于挤压的压力。 心轴由穿过压力产生冲头的杆承载。 将中空坯料插入到这样的结构中,该结构在与模具的截面小的模具相邻的位置处具有中心开口。 当心轴向模具前进时,它接合坯料孔的狭窄部分并将其压靠在模具上,将其保持在那里,同时压力室在坯料周围前进并且挤压发生。

    Die for hydrostatic extrusion of sections having elongated projections
    14.
    发明授权
    Die for hydrostatic extrusion of sections having elongated projections 失效
    用于具有延长投影的部分的静水压缩的DIE

    公开(公告)号:US3765221A

    公开(公告)日:1973-10-16

    申请号:US3765221D

    申请日:1972-03-01

    Applicant: ASEA AB

    Inventor: NILSSON J

    CPC classification number: B21C23/10 B21C23/007

    Abstract: In the hydrostatic extrusion of rods having ribs extending from a core part, extending longitudinally or helically, a billet is hydrostatically extruded through a die having grooves which decrease in width from the inlet die towards the smallest crosssection of the die opening, so that the grooves are filled with the material of the billet.

    Abstract translation: 在具有从芯部延伸的肋的杆的静态挤压中,纵向或螺旋延伸的坯料通过具有从入口模具的宽度减小到模具开口的最小横截面的凹槽的模具被液压挤压,使得 槽被坯料的材料填充。

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