WPQR - VANEK-WELDING

Based on the production requirements and needs of the manufacturer (type of weld, thickness and type of welded material, welding method and position, etc.), the welding supervisor will design and process preliminary welding procedures – pWPS, which should be consulted with our inspector in advance.

Sheet metal preparation (size and number of plates)

BW 350 x 150 mm - 2 pcs <<< FW 350 x 150 mm - 2 pcs <<< Tube. length 150 mm - 2 pcs

Preparation of bevels for BW welds according to ISO 9692-1

* Certificate for basic material, Certificate for additional material,

* Calibration of the welder if it has digital indicators (A and V),

* If they are not digital, it is advisable to have a calibrated clamp ammeter available.

After meeting the above requirements, it is possible to proceed with welding the samples. We recommend preparing two sets of samples for each WPQR (in the case of a defect). The inspector arrives at the welding site, where the welder welds the samples under their supervision and in the presence of the welding supervisor. During welding, the inspector records the necessary data (A, V, time, temperature, etc.)

The inspector shall take over the welded samples and ensure their assessment of the NDT non-destructive test (visual, penetration, magnetic, irradiation, ultrasound) and if the sample passes all NDT tests, mechanical tests shall be performed to the extent required by the relevant standard (macroscopic, tensile, bending, notched toughness, hardness, etc.)

Based on the positive results of non-destructive and destructive tests, the testing body shall issue a WPQR Inspection Certificate and hand it over to the manufacturer.