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PHATECO TECHNICAL SERVICE JSCUltrasonic testing instruction

Document No. PTC.UT.I!""# Re$ision " Issue% %ate &'.Dec.&"#"

(ritten )* Ngu*en Duc Dung + UT le$el II Sign ,,,,,,,,,,,,,,,

A--ro$al )* ,,,,,,,,,,,,,,,,,,,,,, Sign ,,,,,,,,,,,,,,,

1.0 Purpose

Tis instruction a--lies /or ultrasonic testing to %etect %e/ect in -arent metal01el% )o%* an% HA2 o/ )utt 1el% car)on steel -late o/ tic3ness &"mm

2.0Reference document

4S EN #5#6 &""74S EN #5#& &""7

4S EN '87!&&""#

4S EN '87!##998 ! :eneral Princi-les

3.0Personnel:

Personnel -er/orming testing in accor%ance to tis instruction sall a$e aminimum ;uali/ication to SNT!TC!#A UT le$el # or e;ui$alent

4.0Equipment used:

6.#.

7'?!DAC S@N 5"55a0 cal %ue %ate is &'.".&"##

6.&. Pro)e

a. com-ress 1a$e -ro)e " %egree0 #"mm %ia.0 single cr*stal0 /re;. '

>HB

). sear 1a$e -ro)e 5"0 " an% 6' %egree0 single cr*stal 8=9mm0

/re;. 6>HB

6.7. Cali)ration )loc3 II( V#0 V&

6.6. Re/erence )loc3 DAC )loc3 &"mm 1it si%e 7mm SDH

6.'. Cou-lant oil

6.. Oter magnet rule0 rule0 -encil0 -a-er0 )lan3 re-ort /orm0..

5.0Component identification:

S-ecimen No PL&" + ""#

SiBe 7'"L=7""(=&"mmSingle V + 4ut 1el% in car)on steel -late

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6.0Safet Precaution

All o-erators an% su-er$isors sall )e a1are o/ an* local sa/et* rulesregar%ing te 1earing o/ sa/et* cloting an% /oot1ear0 te use o/ sa/et*e;ui-ment an% etc.

Sur/ace tem-erature o/ te com-onent sall not e=cee% '"oC

Com-onent must )e securel* situate% an% accessi)le.

!.0"rea to #e test

Parent metal + at ma=imum /ull s3i- o/ all angle -ro)es (el% )o%* HA2)ot si%e o/ 1el%

>

$.0Preparation for test

8.#. Use -ro)e Bero an% V# )loc3 to cali)ration time )ase at range o/#""mm an% sa$e setting to a %ata set an% cange name accor%ing toserial num)er o/ -ro)e.

8.&. Use V# )loc3 an% DAC )loc3 to cali)rate /or eac angle -ro)e F6'0 "05" %egreeG! -ro)e in%e=0 mar3ing -ro)e in%e= on eac -ro)e! time )ase F &t@cos range #'" mm /or -ro)e 5" %egree0 #&'mm /or-ro)e " an% 6' %egreeG! actual re/lecte% angle! construct DAC 1it SDH 7mm until -oint got soun% -art /ull V!-atF#&"mm /or -ro)e 5" 8"mm /or -ro)e " "mm /or -ro)e 6'G 1it /irstDAC -oint o/ 8"

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9.&. Recall %ata set /or -ro)e 5"0 use t1o -ro)e 5" on DAC )loc3 an% testsur/ace to measure trans/er loss0 i/ trans/er loss &%40 a%% trans/erloss to correct sensiti$it* setting. Increase #& %4 sensiti$it* /orscanning

9.7. Carr* out critical root scanning )* using 5" -ro)e at te s3i-%istance 1it a gui%e stri- )ot si%e o/ te 1el%. FRe/er to S3etc &G.

Recor% an* root %e/ect /oun% onto roug re-ort.

9.6. Carr* out 1el% )o%* scanning /or longitu%inal %e/ect )* mo$e te-ro)e )ac3 an% /ort at s3i- an% /ull s3i- %istance )ot si%e o/ te1el% /or 1el% )o%* testing. Assess eac signal got ma=imumam-litu%e more tan 77K DAC an% /alls 1itin " to s3i- )eam -atan% s3i- to /ull s3i- )eam -at range. Recor% an* %e/ect /oun%regar%ing its am-litu%e0 siBe0 t*-e an% -osition onto roug re-ort.FRe/er to s3etc 7G.

9.'. Carr* out 1el% )o%* scanning /or trans$erse %e/ect. Place te -ro)e

)esi%e te 1el% ca- angle% sligtl* in1ar%s along te 1el% to scan /ortrans$erse %e/ect. Turn te -ro)e aroun% an% cec3 in te o--osite%irection on )ot si%es o/ te 1el%. Assess eac signal got ma=imumam-litu%e more tan 77K DAC. Recor% an* %e/ect /oun% regar%ing itsam-litu%e0 siBe0 t*-e an% -osition onto roug re-ort. FRe/er to s3etc6G

9.. Cange te -ro)e angle 6'0 " in turn an% re-eat ste- 9.&0 use samecorrect trans/er loss o/ -ro)e 5" /or -ro)e 6' an% "

9.5. Te lengt o/ -lanar %e/ect sall )e measure% using %4 %ro- meto%

an% /or te lengt o/ te %e/ect sall )e measure% using &"%4 %ro-meto%. T*-e o/ te %e/ect sall )e asses as caracteristic o/ its-osition on 1el%. FCrac30 LOP0 LO

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11.0 "cceptance+ Re*ect

All in%ication to )e recor% on a stan%ar% re-ort an% su)mit to NDT su-er$isor/or recec3 an% u%gement

12.0 Post &est Procedure

Remo$e all cou-lant an% mar3ing /rom sur/ace o/ com-onent an% -rotect1it a tin la*er o/ oil.

Re-ort all in%ication on a stan%ar% re-ort seet so1ing clearl* te siBe0-osition 1it re/erence to %atum -oint0 orientation an% nature o/ te %e/ects.

13.0 ,on Compliance

I/ te o-erator una)le to /ollo1 tis instruction0 more gui%ance sall )esougt /rom te NDT su-er$isor.

14.0 Reportin'

Recor% to a re-ort at least in/ormation /or Client Test or Proect No (or3

Location Tecni;ue use% Part Descri-tion