FIELD: metallurgy, namely apparatuses for controlling flow of melt metal.
SUBSTANCE: refractory single-block cylindrical stopper has axial opening passing downward from upper end and having in said opening fastening means spaced by distance d from its upper end. Stopper is divided by three portions, namely it includes first portion passing from upper end 2 towards its lower end and having length that exceeds distance d; second portion passing from first one towards lower end; third portion passing from second portion and having nose part of stopper. Mean cross section of second portion is less than that of first portion and the most cross section of third portion exceeds the least cross section of second portion.
EFFECT: significantly reduced mass of stopper with the same strength of it.
12 cl, 2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| LOCKING DEVICE | 2006 |
|
RU2374035C2 |
| NOZZLE-STOPPER EQUIPMENT FOR REGULATION OF FLOW OF MOLTEN METAL | 2006 |
|
RU2384388C2 |
| CERAMIC FIRE-RESISTANT LOCK | 2012 |
|
RU2570681C2 |
| MONO-BLOCK TYPE STOPPER | 2002 |
|
RU2277030C2 |
| RETAINER BODY | 2009 |
|
RU2508960C2 |
| FLOW CONTROLLER | 2010 |
|
RU2527747C2 |
| STOPPER ROD | 1999 |
|
RU2223841C2 |
| STOPPER ADAPTED FOR GAS FEEDING INTO MOLTEN METAL | 2005 |
|
RU2375150C2 |
| STOPPER ROD | 1999 |
|
RU2223840C2 |
| STOP ROD AND METHOD FOR PROVIDING UNIFORM GAS SCREEN AROUND THE STOP ROD | 2020 |
|
RU2802366C2 |
