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    Stress Relieving Procedure

    Uploaded by

    Salman Khan
    The document outlines a stress relieving procedure for dish ends involving loading components into a furnace below 300°C, heating at 100°C/hr up to a soaking temperature of 620°C +/- 10°C for 1 hour per 25mm thickness, cooling at 100°C/hr to 300°C then freely in atmosphere, and maintaining uniform temperature during heating and holding using calibrated equipment to prevent oxidation.

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    Stress Relieving Procedure

    Uploaded by

    Salman Khan
    106 views1 page
    The document outlines a stress relieving procedure for dish ends involving loading components into a furnace below 300°C, heating at 100°C/hr up to a soaking temperature of 620°C +/- 10°C for 1 hour per 25mm thickness, cooling at 100°C/hr to 300°C then freely in atmosphere, and maintaining uniform temperature during heating and holding using calibrated equipment to prevent oxidation.

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    The document outlines a stress relieving procedure for dish ends involving loading components into a furnace below 300°C, heating at 100°C/hr up to a soaking temperature of 620°C +/- 10°C for 1 hour per 25mm thickness, cooling at 100°C/hr to 300°C then freely in atmosphere, and maintaining uniform temperature during heating and holding using calibrated equipment to prevent oxidation.

    Copyright:

    © All Rights Reserved
    Download as DOC, PDF, TXT or read online from Scribd
    Download as doc, pdf, or txt
    106 views1 page

    Stress Relieving Procedure

    Uploaded by

    Salman Khan
    The document outlines a stress relieving procedure for dish ends involving loading components into a furnace below 300°C, heating at 100°C/hr up to a soaking temperature of 620°C +/- 10°C for 1 hour per 25mm thickness, cooling at 100°C/hr to 300°C then freely in atmosphere, and maintaining uniform temperature during heating and holding using calibrated equipment to prevent oxidation.

    Copyright:

    © All Rights Reserved
    Download as DOC, PDF, TXT or read online from Scribd
    Download as doc, pdf, or txt
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    STRESS RELIEVING PROCEDURE FOR DISH END

    PROJECT: NTPC VALLUR


    PACKAGE- DESALINATION PLANT
    PACKAGE NO- 0260-189-2

    1) Load the job/components on furnace when the furnace temp below


    300deg C
    2) Above 300Deg C, heat the furnace along with job at uniform rate
    subject to 100deg C /hr.
    3) A) Soaking Temp 620 Deg C +/- 10deg C
    B) Soaking time: - One hr/25 mm thick
    4) After soaking for required time, job shall be cooled up to 300Deg C
    at uniform rate of 100Deg/hr
    5) Below 300 Deg may be cooled in atmosphere
    6) During heating & holding period the furnace shall be controlled as
    to avid excessive oxidation to the surface of job/ component.
    7) During soaking period there shall not be greater difference than +/-
    10 deg C.
    8) Temp recorder chart shall be the part of documentation
    9) Calibrated recorder, thermo couple, temp controller shall be used

    B.P.DESHPANDE
    HEAD - QC

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