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System for Extending the Life of Thin Walled Tubing and Austempered Weld Stress Relieved Thin Walled Tubing
System for Extending the Life of Thin Walled Tubing and Austempered Weld Stress Relieved Thin Walled Tubing
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机译:延长薄壁管和奥氏体焊接应力消除薄壁管寿命的系统
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摘要
The present invention is directed to a method of extending the life of thin walled tubing by austempering the tubing in a controlled continuous run process involving heating, quenching, and cooling the tubing pursuant to predetermined process parameters. The invention is also directed to a process for austempering tubing having a welded seam and for relieving residual stress in the weld. The invention is further directed to the product of the above processes as well as an austempered weld stress relieved thin walled tubing and such tubing in combination with other apparatus with which it is suitable for use in the production of hydrocarbons.
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