Rabu, 17 Oktober 2012

PROCEDURE AWS D1.1 2010


Procedure AWS D1.1 Article 6 Part F, 2010 (Groove Welds)
A.      Staticly Loaded non tubular (6.20.1) Use IIW V1 & V2 Block Calibration  (6.23.1)
1.       Determine  Thickness Test Pieces and Diameter  and Find Range
  R= (2xT Test Pieces + Weld Reinf) / Cos θ 

2.       Find dB Reference = dB Sensitivity IIW V1  + (dB TOL Tp – dB TOL  IIW V1)
2.1. dB Sensitivity IIW V1
2.1.1.        Use 1 ea Angle Probe θ  to obtain maximum heigth at 40% - 60% FSH(6.25.4.2) for Hole Dia 1.5 mm at distance 15 mm from Survace (IIW V1 Block Calibration) make a point and Write dB (dB Sensitivity IIW V1)

2.2. dB TOL IIW V1
2.2.1.        Make dB TOL (Transfer Of Loses) of IIW V1 Block Calibration at 50% - 75% FSH(6.25.4.2)
a.       Find Thickness IIW V1 Block Calibration
b.      Check Range (Note Same as Range Test Pieces)
    
c.       Calibrate Angle Probe θ on IIW V2 at Range
d.      First
-          Find Skip Distance 2 leg
  SD 2 Leg
-          Find Sound Path Actual 1 leg
 
-          Find Sound Path On CRT 1 leg
 
-          Use 2 ea angle probe θ face to face to obtain a maximum pulse heigth at  40% - 60% FSH make a point and write dB (dB TOL IIW V1)
e.      Second
-          Find Skip Distance 4 leg
  SD 4 Leg
-          Find Sound Path Actual 1 leg
 
-          Find Sound Path On CRT 1 leg
 
-          Use 2 ea angle probe θ face to face to obtain a maximum pulse heigth at  40% - 60% FSH without change dB make a point

2.3. dB TOL (Transfer Of Loses) of Test Pieces
a.       Find Thickness Test Pices
b.      Find Range (Same as at TOL IIW V1 Block Calibration Range)
    
c.       Calibrate Angle Probe θ on IIW V2 at Range
d.      First
-          Find Skip Distance 2 leg
  SD 2 Leg
-          Find Sound Path Actual 1 leg
 
-          Find Sound Path On CRT 1 leg
 
-          Use 2 ea angle probe θ face to face to obtain a maximum pulse heigth at  40% - 60% FSH make a point and write dB (dB TOL TP)

3.       Find dB Scanning = dB Reference + (on Scanning Level Table 6.2 Static ) (6.26.6)
4.       Evaluation Level (6.31) to find Class at Table 6.2 Static
Indication Rating (6.26.6.5) = dB Indication Level (a) – dB Reference (b) – Attenuation Factor (c)
a.       dB Indication Level = Find heigth pulse on screen  at adjusted to Reference Level (40% - 60% FSH)
b.      dB Reference (same as above number 2)
5.       Attenuation Factor =  (  – 1 ) x 2 if less than ½ dB shall be reduce to the lower dB level and those of ½ dB or greater increased to the higher level.
6.       Acceptance Criteria AWS D1.1 Article 6 Part C  for Statically Loaded non tubular (6.13.1) on Table 6.2







B.      Cyclically Loaded Non Tubular (6.20.1) Use IIW V1 & V2 Block Calibration  (6.23.1)
1.       Determine  Thickness Test Pieces and Diameter  and Find Range
    

2.       Find dB Reference = dB Sensitivity IIW V1  + (dB TOL Tp – dB TOL  IIW V1)
2.1. dB Sensitivity IIW V1
2.1.1.        Use 1 ea Angle Probe θ  to obtain maximum heigth at 50% - 75% FSH(6.25.4.2) for Hole Dia 1.5 mm at distance 15 mm from Survace (IIW V1 Block Calibration) make a point and Write dB (dB Sensitivity ASME IIW V1)

2.2. dB TOL IIW V1
2.2.1.        Make dB TOL (Transfer Of Loses) of IIW V1 Block Calibration at 40% - 60% FSH(6.25.4.2)
a.       Find Thickness IIW V1 Block Calibration
b.      Check Range (Note Same as Range Test Pieces)
    
c.       Calibrate Angle Probe θ on IIW V2 at Range
d.      First
-          Find Skip Distance 2 leg
  SD 2 Leg
-          Find Sound Path Actual 1 leg
 
-          Find Sound Path On CRT 1 leg
 
-          Use 2 ea angle probe θ face to face to obtain a maximum pulse heigth at  50% - 70% FSH make a point and write dB (dB TOL ASME Plate)
e.      Second
-          Find Skip Distance 4 leg
  SD 4 Leg
-          Find Sound Path Actual 1 leg
 
-          Find Sound Path On CRT 1 leg
 
-          Use 2 ea angle probe θ face to face to obtain a maximum pulse heigth at  40% - 60% FSH without change dB make a point

2.3. dB TOL (Transfer Of Loses) of Test Pieces
a.       Find Thickness Test Pices
b.      Find Range (Same as at TOL IIW V1 Block Calibration Range)
    
c.       Calibrate Angle Probe θ on IIW V2 at Range
d.      First
-          Find Skip Distance 2 leg
  SD 2 Leg
-          Find Sound Path Actual 1 leg
 
-          Find Sound Path On CRT 1 leg
 
-          Use 2 ea angle probe θ face to face to obtain a maximum pulse heigth at  40% - 60% FSH make a point and write dB (dB TOL TP)

3.       Find dB Scanning = dB Reference + (on Scanning Level  Table 6.3 Cyclically ) (6.26.6)
4.       Evaluation Level (6.31) to find Class at Table 6.3 Static
Indication Rating (6.26.6.5) = dB Indication Level (a) – dB Reference (b) – Attenuation Factor (c)
c.       dB Indication Level = Find heigth pulse on screen  at adjusted to Reference Level (40% - 60% FSH)
d.      dB Reference (same as above number 2)
e.      Attenuation Factor =  (  – 1 ) x 2 if less than ½ dB shall be reduce to the lower dB level and those of ½ dB or greater increased to the higher level.
5.       Acceptance Criteria AWS D1.1 Article 6 Part C  for Cyclically Loaded Non Tubular(6.13.2) on Table 6.3







A.      Tubular Conection with D < 24” (6.20.1 & 6.13.3.1) Class “R” Use IOW A5 Block calibration  (6.27.3.2) and DAC Techniques.
1.       Determine  Thickness Test Pieces and Diameter , Find Range
    
2.       Find dB Reference = dB Sensitivity IOW A5  + (dB TOL Tp – dB TOL  IOW A5)
2.1. dB Sensitivity IOW A5
2.1.1.        Make DAC ( Distance Amplitude Correction) IOW A5 at 40% ± 60% FSH(6.27.3.2 (1))
a.       Find Thickness IOW A5 (24 mm)
b.      Check Range (Note Same as Range Test Pieces)
 
c.       Calibrate Angle Probe θ on IIW V2 at Range
d.      First :
-          Use 1 ea Angle Probe θ to obatain maximum pulse heigth at 50% ± 75%  FSH for Depth 12.5 mm IOW A5  as 100% DAC make a point and write the dB (dB Sensitivity IOW A5)
-          Reduce 6 dB to obtain 50 % DAC, make a point
-          Reduce 14 dB to obtain 10 % DAC, make a point
-          Add 20 dB to original dB of 100% DAC
e.      Second
-          Move 1 ea Angle Probe θ to obtain maximum pulse height without change dB note to Depth 18 mm IOW A5 make a point.
-          Reduce 6 dB to obtain 50 % DAC, make a point
-          Reduce 12 dB to obtain 10 % DAC, make a point
-          Add 20 dB to original dB of 100% DAC
f.        Third
-          Move 1 ea Angle Probe θ to obtain maximum pulse height without change dB note to Depth 24 mm make a point.
-          Reduce 6 dB to obtain 50 % DAC, make a point
-          Reduce 14 dB to obtain 10 % DAC, make a point
-          Add 20 dB to original dB of 100% DAC
g.       Fourd
-          Move 1 ea Angle Probe θ to obtain maximum pulse height without change dB note to Depth 31 mm make a point.
-          Reduce 6 dB to obtain 50 % DAC, make a point
-          Reduce 14 dB to obtain 10 % DAC, make a point
-          Add 20 dB to original dB of 100% DAC

2.2. dB TOL IOW A5
2.2.1.        Make dB TOL (Transfer Of Loses) of IOW A5 Block Calibration at 40% ± 60% FSH(6.27.3.2 (1))
a.       Find Thickness IOW A5
b.      Check Range (Note Same as Range Test Pieces)
    
c.       Calibrate Angle Probe θ on IIW V2 at Range
d.      First
-          Find Skip Distance 2 leg
  SD 2 Leg
-          Find Sound Path Actual 1 leg
 
-          Find Sound Path On CRT 1 leg
 
-          Use 2 ea angle probe θ face to face to obtain a maximum pulse heigth at  40% ± 60% FSH make a point and write dB (dB TOL IOW A5 )
e.      Second
-          Find Skip Distance 4 leg
  SD 4 Leg
-          Find Sound Path Actual 1 leg
 
-          Find Sound Path On CRT 1 leg
 
-          Use 2 ea angle probe θ face to face to obtain a maximum pulse heigth at  40% ± 60% FSH without change dB make a point

2.3. dB TOL (Transfer Of Loses) of Test Pieces
a.       Find Thickness Test Pices
b.      Check Range (Same as at DAC & TOL IOW A5 Block Calibration Range)
    
c.       Calibrate Angle Probe θ on IIW V2 at Range
d.      First
-          Find Skip Distance 2 leg
  SD 2 Leg
-          Find Sound Path Actual 1 leg
 
-          Find Sound Path On CRT 1 leg
 
-          Use 2 ea angle probe θ face to face to obtain a maximum pulse heigth at  40% ± 60% FSH make a point and write dB (dB TOL TP)

3.       Find dB Scanning = dB Reference + 6 dB (6.27.5)
4.       Evaluation Level at  > 50 % DAC, Linear or Plannar versus Spherical (6.27.7)
5.       Acceptance Criteria AWS D1.1 Article 6 Part C for Tubular Connection Class “X”  (6.13.3.2)
a.       Indication 50 % DAC , Disregarded
b.      50% < indication 100 % Shall be evaluated
-          Isolated random spherical 25 mm ACC and > 25 mm evaluated as linear reflector.
-          Aligned spherical shall be evaluated as linear reflector
-          Cluster spherical  or more > 645 mm2 / 150 mm , Rejected
c.       Linear or Plannar use figure 6.5 (note for Accumulated Length Indication D/2 )
-          50% < indication 100 % DAC , Minor Indication
-          Indication > 100% DAC , Mayor Indication








B.      Tubular Conection with T Y K Joint Connection (6.27 & 6.13.3.2) Class “X” Use IOW A5 Block calibration  (6.27.3.2) and DAC Techniques.
1.       Determine  Thickness Test Pieces and Diameter , Find Range
    
2.       Find dB Reference = dB Sensitivity IOW A5  + (dB TOL Tp – dB TOL  IOW A5)
2.1. dB Sensitivity IOW A5
2.1.1.        Make DAC ( Distance Amplitude Correction) IOW A5 at 40% ± 60% FSH(6.27.3.2 (1))
a.       Find Thickness IOW A5 (24 mm)
b.      Check Range (Note Same as Range Test Pieces)
 
c.       Calibrate Angle Probe θ on IIW V2 at Range
d.      First :
-          Use 1 ea Angle Probe θ to obatain maximum pulse heigth at 50% ± 75%  FSH for Depth 12.5 mm IOW A5  as 100% DAC make a point and write the dB (dB Sensitivity IOW A5)
-          Reduce 6 dB to obtain 50 % DAC, make a point
-          Reduce 14 dB to obtain 20 % DAC, make a point
-          Add 20 dB to original dB of 100% DAC
e.      Second
-          Move 1 ea Angle Probe θ to obtain maximum pulse height without change dB note to Depth 18 mm IOW A5 make a point.
-          Reduce 6 dB to obtain 50 % DAC, make a point
-          Reduce 12 dB to obtain 10 % DAC, make a point
-          Add 20 dB to original dB of 100% DAC
f.        Third
-          Move 1 ea Angle Probe θ to obtain maximum pulse height without change dB note to Depth 24 mm make a point.
-          Reduce 6 dB to obtain 50 % DAC, make a point
-          Reduce 14 dB to obtain 10 % DAC, make a point
-          Add 20 dB to original dB of 100% DAC
g.       Fourd
-          Move 1 ea Angle Probe θ to obtain maximum pulse height without change dB note to Depth 31 mm make a point.
-          Reduce 6 dB to obtain 50 % DAC, make a point
-          Reduce 14 dB to obtain 10 % DAC, make a point
-          Add 20 dB to original dB of 100% DAC

2.2. dB TOL IOW A5
2.2.1.        Make dB TOL (Transfer Of Loses) of IOW A5 Block Calibration at 40% ± 60% FSH(6.27.3.2 (1))
a.       Find Thickness IOW A5
b.      Check Range (Note Same as Range Test Pieces)
    
c.       Calibrate Angle Probe θ on IIW V2 at Range
d.      First
-          Find Skip Distance 2 leg
  SD 2 Leg
-          Find Sound Path Actual 1 leg
 
-          Find Sound Path On CRT 1 leg
 
-          Use 2 ea angle probe θ face to face to obtain a maximum pulse heigth at  40% ± 60% FSH make a point and write dB (dB TOL ASME Plate)
e.      Second
-          Find Skip Distance 4 leg
  SD 4 Leg
-          Find Sound Path Actual 1 leg
 
-          Find Sound Path On CRT 1 leg
 
-          Use 2 ea angle probe θ face to face to obtain a maximum pulse heigth at  40% ± 60% FSH without change dB make a point

2.3. dB TOL (Transfer Of Loses) of Test Pieces
a.       Find Thickness Test Pices
b.      Check Range (Same as at DAC & TOL IOW A5 Block Calibration Range)
    
c.       Calibrate Angle Probe θ on IIW V2 at Range
d.      First
-          Find Skip Distance 2 leg
  SD 2 Leg
-          Find Sound Path Actual 1 leg
 
-          Find Sound Path On CRT 1 leg
 
-          Use 2 ea angle probe θ face to face to obtain a maximum pulse heigth at  50% ± 75% FSH make a point and write dB (dB TOL TP)
3.       Find dB Scanning = dB Reference + 12 dB (6.27.5)
4.       Evaluation Level at  > 50 % DAC, Linear or Plannar versus Spherical (6.27.7)
5.       Acceptance Criteria AWS D1.1 Article 6 Part C for Tubular Connection Class “X”  (6.13.3.2)
d.      Indication 50 % DAC , Disregarded
e.      50% < indication 100 % Shall be evaluated
-          Isolated random spherical 25 mm ACC and > 25 mm evaluated as linear reflector.
-          Aligned spherical shall be evaluated as linear reflector
-          Cluster spherical  or more > 645 mm2 / 150 mm , Rejected
f.        Linear or Plannar (root is define with in 6 mm or TW / 4 whichever is greater.)
-          Indication >50% DAC, For Root Only refer to figure 6.7
-          50 % > Indication 100% DAC , For Internal Indication, disregarged
-          Indication > 100% DAC, for Internal Indication  refer to figure 6.8

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