中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

124 records (took 0.01 seconds)

    Process of forging large seamless ferrous-metal welding necks and other cylindrical articles
    81.
    发明授权
    Process of forging large seamless ferrous-metal welding necks and other cylindrical articles 失效
    锻造大型无缝黑色金属焊接颈部等圆柱形制品的工艺

    公开(公告)号：US4073174A

    公开(公告)日：1978-02-14

    申请号：US650001

    申请日：1976-01-19

    Applicant: Charles H. Moore

    Inventor： Charles H. Moore

    IPC: B21C23/03 ,  B21C23/20 ,  B21K21/00 ,  B21K23/04 ,  B21C23/00 ,  B21C23/01 ,  B21C35/04

    CPC classification number: B21C23/03 ,  B21C23/20 ,  B21K21/00 ,  B21K23/04

    Abstract: Large, heavy-duty, seamless high-pressure resistant ferrous-metal welding necks and other substantially thick-walled cylindrical articles are forged in such manner as to obtain greatly improved quality, dimensionally, metallurgically and otherwise, by the use in sequence of a certain combination of metal-forging elements; which includes a vertically disposed cylindrical female forging die member provided at its bottom with a removable disc and a surrounding circular forging kinfe; an annular metal-working and metal-displacing ring having an external diameter which is slightly less than the bore of the cylindrical female forging die member; a metal-working and metal-displacing disc which interfits with the annular metal-working and metal-displacing ring; a first round forging press follower of a diameter which is adequate to entirely cover the metal-working and metal-displacing disc and a substantial portion of the annular metal-working and metal-displacing ring; a second round forging press follower of a diameter which is slightly less than the internal diameter of the annular metal-working and metal-displacing ring.

    Abstract translation: 大型，重型，无缝高耐压的黑色金属焊接颈部和其他基本上厚壁的圆柱形制品被锻造成通过一定程度的使用来获得大大改善的质量，尺寸，冶金和其他方面的质量 金属锻件的组合; 其包括垂直设置的圆柱形阴锻模具构件，其在其底部设置有可拆卸的盘和围绕的圆形锻造件; 环形金属加工和金属置换环，其外径略小于圆柱形阴锻锻模构件的孔; 金属加工和金属置换盘，其与环形金属加工和金属置换环相互配合; 一直径的第一圆锻压制从动件，其足以完全覆盖金属加工和金属置换盘以及大部分环形金属加工和金属置换环; 第二个圆形锻压机的直径略小于环形金属加工和金属置换环的内径。

    Apparatus and method of forming tubular articles
    82.
    发明授权
    Apparatus and method of forming tubular articles 失效
    装置和形成管状物品的方法

    公开(公告)号：US3564894A

    公开(公告)日：1971-02-23

    申请号：US3564894D

    申请日：1968-08-30

    Applicant: WILFRED J SHARON

    Inventor： SHARON WILFRED J

    IPC: B21J9/04 ,  B21K1/00 ,  B21K1/04 ,  B21J5/10 ,  B21K21/00

    CPC classification number: B21J5/10 ,  B21J9/04 ,  B21K21/00

    Abstract: AN APPARATUS AND METHOD OF FORMING TUBULAR ARTICLES FROM A SOLID SLUG. A FIRST SOLID SLUG IS PLACED ONTO AN OPENENDED DIE BORE AND FORCED ONTO A PIERCING PUNCH DISPOSED WITHIN ONE END OF THE DIE BORE TO FORM A TUBULAR FINISHED PART. THE SLUG IS FORCED ONTO THE PIERCING PUNCH BY A RECIPROCABLE FORGING PUNCH DISPOSED IN THE OTHER END OF THE DIE BORE. IN ADDITION TO THE FIRST SLUG IN PROCESS, THERE IS AT LEAST ONE INTERMEDIATE OR SECOND SLUG DISPOSED IN THE DIE BORE BETWEEN THE PIERCING PUNCH AND THE FORGING PUNCH. THE SECOND SLUG IS PARTIALLY PIECED AS WELL AS RADIALLY EXPANDED WHILE ACTING AS A DEFORMABLE FORGING PUNCH WHEN ADVANCING THE FIRST SLUG. DIRECT LAMINAR METAL GRAIN FLOW IS EFFECTED IN THE TRANSITION FROM SLUG TO FINISHED PART. EACH SLUG HAS A CONE-SHAPED INDENT ON ITS END ADJACENT THE FORGING PUNCH, SUCH INDENT BEING POSITIONED ON THE SLUG LONGITUDINAL AXIS TO EFFECT A CLEAN OPENING THROUGH THE BACK OF THE SLUG BY THE PIERCING PUNCH SUCH THAT THE PIERCING PUNCH DOES NOT CARRY A THIN SKIN OF METAL INTO THE SECOND SLUG.

Patent Agency Ranking