Post Weld Heat Treatment (PWHT) is a controlled process which is performed to reduce the residual stresses and micro-structural changes that occur after the completion of welding.
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Click Post Weld Heat Treatment (PWHT) Inspection.
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Click Notice of Inspection.
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In Select Module list, select the required module.
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Click Create Notice of Inspection
to create an NOI with the selected components.
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Select the NOI and click Manage Inspection Items
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Only the components that were selected while creating the NOI appear in the Manage Inspection Items table.
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Enter the data for the required properties and click Save Inspection Items.
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Select the NOI and click Generate Notice of Inspection
. The software generates the report for the selected NOI.
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Click Report of Inspection.
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Click Create Report of Inspection from NOI
. The Post Weld Heat Treatment (PWHT) ROI dialog box appears.
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On the Main Details page, enter the following properties and click Next. The Select NOIs page appears.
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Description
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Module
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Area
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Unit
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Block
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Work Package
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Requested By - By default, the login user.
The NOIs that satisfy the criteria selected in the Main Details page appear.
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Select the required NOI/NOIs and click Finish. An ROI corresponding to the selected NOI/NOIs is created.
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Click Create Report of Inspection from drawings
. The Create Piping PWHT ROI dialog box appears.
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On the Main Details page, enter the following properties and click Next. The select drawings page appears.
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Description
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Module
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Area
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Unit
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Block
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Work Package
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Requested By - By default, the login user.
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Select the required drawings and click Finish. The Select Inspection Items page appears.
The welds related to the selected drawings appear. These welds must be accepted in visual inspection stage and Is PWHT Required property must be set to Y (Yes).
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Select the required weld and click Finish. An ROI for the selected weld is created.
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Select the ROI and click Manage Inspection Items
. The Manage Inspection Items table appears.
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Enter the data for the required properties and click Save Inspection Items.
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Select a weld and click Accept Item
. The Accept Item dialog box appears.
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Enter the following properties and click Save.
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Inspector Name - By default, login user.
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Inspection Date - By default, today’s date.
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Accept reason
The PWHT Client Result is set to Accepted on the weld. The Accept reason and inspection date are set in the appropriate fields on the weld.
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Select a component and click Reject Item
. The REPAIR ITEM dialog box appears.
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Enter the following properties and click Save.
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Inspector Name - By default, login user.
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Inspection Date - By default, today’s date.
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Reason for Repair - The following cases occur:
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Repair Segment: If you select the reason for repair as repair segment, a new weld segment is created with a suffix Rx (where x is the number of repair segments). A weld can be repaired thrice after which the weld is cut or disabled, and a new segment is created with a new weld label Cx.
For example, if a weld W01 is rejected during PWHT and Repair segment is selected as the reason for repair, a new weld segment is created as W01_R1 (where 1 is the first repair segment or the weld is rejected for the first time). If the newly created weld segment W01_R1 is also rejected, then another repair segment is created as W01_R2 (Which means the weld is rejected for the send time). If the weld is rejected thrice, the weld is disabled, and a new weld segment is created with a new weld label W01_C1.
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Re-weld: If you select the reason for repair as re-weld, then the original weld is disabled, and a new weld is created with a suffix Cx (where x is the numbers of times the weld is rejected and reweld).
For example, if a weld W01 is rejected during PWHT and Reweld is selected as the reason for repair, a new weld is created with a suffix C1 and labeled as W01_C1 (where C1 indicates the first reweld).
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Reason
The PWHT Client Result is set to Rejected on the weld. The Reject reason and inspection date are set in the appropriate fields on the weld.
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Select the ROI and click Generate Report of Inspection
. The software generates the report for the selected ROI.
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You can download, attach, and remove files for the welds. For more information, see Module Icons.