FIELD: metallurgy.
SUBSTANCE: ends of copper pipe are heated up to Ac3+(50÷430)°C, subject to hot upset on horizontal forging machine and from temperature of forging it is cooled on air, then it is heated pipe at a rate 90-200°C/s by means of passing of current by all the volume of pipe up to tempering temperature 300-700°C, it is isolated 10-15 min and cooled.
EFFECT: receiving of pipes with close-grained homogeneous structure lengthwise and section-wise and high strength properties.
1 ex, 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| PROCEDURE FOR FABRICATION OF PUMP-COMPRESSOR PIPE | 2009 |
|
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| DEVICE FOR CREATION OF GRAVEL WELL SCREEN IN PROCESS OF HYDRAULIC FRACTURING OF PRODUCTIVE FORMATION | 2023 |
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|
RU2810117C1 |
