FIELD: process engineering.
SUBSTANCE: invention relates to metal forming and may be used in production of bimetallic ribbed tubes for gas-to-fluid heat exchangers for whatever industry. Helical crosswise ribs are extruded in cold state from thick-wall external tube fitted with minor clearance on bearing tube. Prior to cold rolling, helical bulged skew ledged are made on internal bearing tube outer surface to form V-shape herringbone relief.
EFFECT: recesses between V-shape relief are filled by external tube metal to increase contact surface area and reduce thermal contact resistance, hence, to increase heat transfer factor.
8 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| DEVICE AND METHOD FOR FABRICATION OF HEAT EXCHANGE TUBE WITH KLM-RIBS | 2012 |
|
RU2574146C2 |
| METHOD OF PRODUCING BIMETALLIC FINNED TUBES | 0 |
|
SU1016003A1 |
| METHOD FOR MAKING FINNED BIMETALLIC TUBE OF HEAT EXCHANGER | 2002 |
|
RU2238166C2 |
| METHOD OF PRODUCING BIMETALLIC FINNED TUBES | 0 |
|
SU1593767A1 |
| METHOD OF PRODUCING HEAT-EXCHANGE RIBBED TUBE | 0 |
|
SU1089387A1 |
| METHOD OF MAKING BIMETALLIC RIBBED TUBES | 0 |
|
SU747681A1 |
| METHOD AND APPARATUS FOR PRODUCING BIMETALLIC FINNED TUBES | 0 |
|
SU1466894A1 |
| METHOD AND ROLL FOR PRODUCING FINNED TUBES | 0 |
|
SU774736A1 |
| METHOD OF MAKING RIBBED TUBES | 0 |
|
SU566645A1 |
| HEAT EXCHANGE SECTION | 2022 |
|
RU2786302C1 |
