FIELD: manufacturing technology.
SUBSTANCE: invention relates to metal forming and can be used in production of high-pressure seamless steel balloons. A balloon with a bottom having an internal reinforcing ledge is formed, and a through hole is drilled in the named ledge. Balloon is formed by stages. At the first stage, back extrusion is used to produce a semi-finished workpiece with a bottom having a final thickness of the bottom of the balloon and a wall whose thickness exceeds the final thickness of the balloon wall. A shaped pushing head with an external diameter and a matrix with an internal diameter which exceed the final dimensions of the balloon are used. Pushing head has recess on outer surface to produce inner reinforcing balloon ledge. At the next stage of molding, the semi-finished workpiece is back extruded by means of a monolithic puncheon made with a shaped end with a recess. Note here that steel balloon bottom is calibrated.
EFFECT: possible to obtain balloons having wide operational capabilities.
1 cl, 9 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| PRODUCTION METHOD OF SEAMLESS HIGH-PRESSURE CYLINDER FROM STAINLESS STEEL | 2016 |
|
RU2710484C1 |
| METHOD FOR PLUNGER MOLDING OF METALLIC CONTAINERS AND SIMILAR ARTICLES | 2002 |
|
RU2296641C2 |
| PANEL-LIKE MOLDED ARTICLE AND METHOD OF ITS PRODUCTION | 2016 |
|
RU2702671C1 |
| METHOD OF MAKING PANEL-LIKE MOLDED ARTICLE | 2017 |
|
RU2699437C1 |
| METHOD AND DEVICE FOR MAKING PRESS PUMPS FOR FLUID MEDIA | 2015 |
|
RU2683676C2 |
| PRESS-MOLDED PRODUCT, PRESS-MOLDED PRODUCT PRODUCING METHOD AND PRESS-MOLDED PRODUCT PRODUCING APPARATUS | 2014 |
|
RU2650660C2 |
| METHOD AND DEVICE FOR PRODUCTION OF HOLLOW BODY FROM ROUND BILLET | 2007 |
|
RU2445181C2 |
| DOOR INNER PANEL AND METHOD OF MAKING INNER DOOR PANEL | 2017 |
|
RU2699435C1 |
| MOULDING OF CONTAINERS | 2005 |
|
RU2359827C2 |
| ALUMINIUM BOTTLE WITH NECK THREAD PRODUCED BY IMPACT EXTRUSION PRESSING, MADE OF RECYCLED ALUMINIUM AND REINFORCED ALLOYS | 2014 |
|
RU2642231C2 |
