FIELD: welding.
SUBSTANCE: invention relates to creation of a weld seam between an inner coating located inside the metal main pipe of a section of a pipe with an inner coating and an electrofusion fitting containing at least one heating element. The end of the electrofusion fitting is placed inside the end of the section of the pipe with an inner coating. An induction coil is placed inside the electrofusion fitting channel next to said at least one heating element. Electric power is supplied to the induction coil for powering said at least one heating element by means of electromagnetic induction.
EFFECT: high reliability of the integrity of inner coatings of the pipes is achieved as a result.
69 cl, 4 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| IMPROVED METHODS OF CREATING AN ELECTROFUSION CONNECTION | 2014 |
|
RU2641925C2 |
| ELECTROFUSION JOINT | 2009 |
|
RU2462649C1 |
| CONNECTING UNIT | 2010 |
|
RU2529293C2 |
| TUBULAR ELEMENT FOR HEATING AN AEROSOL-FORMING MATERIAL | 2018 |
|
RU2756907C1 |
| INDUCTION COIL ASSEMBLY | 2018 |
|
RU2728518C1 |
| METHOD OF CONNECTING SECTIONS OF LINED PIPELINE, SECTION OF LINED PIPELINE AND METHOD OF LAYING PIPELINE ON SEA BOTTOM | 2016 |
|
RU2712322C2 |
| AEROSOL DELIVERY DEVICE | 2020 |
|
RU2801827C2 |
| AEROSOL-GENERATING ARTICLE, AEROSOL-GENERATING SYSTEM AND METHOD OF MAKING AEROSOL-GENERATING ARTICLE | 2016 |
|
RU2710079C2 |
| FITTING | 2023 |
|
RU2822673C1 |
| DEVICE FOR HEATING AEROSOL FORMING MATERIAL | 2016 |
|
RU2670044C1 |
