1 / 31

Procedure for the REINFORCEKIT-4D on a straight pipe

Procedure for the REINFORCEKIT-4D on a straight pipe. Onshore. REINFORCEKIT 4D on a straight pipe. General method to use a REINFORCEKIT-4D :. - Be sure that this is the good defect place Read the 3X procedure to know the length to fix Check the presence of pits and high corroded aeras

aysel
Download Presentation

Procedure for the REINFORCEKIT-4D on a straight pipe

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Procedure for the REINFORCEKIT-4D on a straight pipe Onshore

  2. REINFORCEKIT 4D on a straight pipe • General method to use a REINFORCEKIT-4D : • - Be sure that this is the good defect place • Read the 3X procedure to know the length to fix • Check the presence of pits and high corroded aeras • Thanks to a tape measure, define the correct area to treat and repair • The REINFORCEKIT 4D must be centered on the defect • Delimit the area thanks to an adhesive tape • Wear your personal protective equipments (PPE) • Create a roughness SA 2½ (about 60µm) by using MBX bristle blaster • Once the roughness is created, remove the adhesive tape • Degrease the treated surface with adequate degreaser (aceton) • If the surface is not smooth, fill the pits with 3X filler • Before the filler cures, cover the pipe with the 3X resin • Put the aramid tape on the pipe and overlap the first layer • Wrap respecting the gap and tightening the tape as strong as possible

  3. How to use the Monti MBX ? • Surface roughnessafter MBX bristlebalstingtreatment :

  4. How to use the Monti MBX ? • How to start ?

  5. How to use the Monti MBX ? • Change of system components ?

  6. How to use the Monti MBX ? • How to operate ?

  7. How to use the Monti MBX ? • How to operate in corners?

  8. DEFINE THE AREA TO BE TREATED • Define the correct area to be treated : Lrepair • Define the surface that have to be fixed as below • The repaired area must be centered on the defect Lrepair/2 Lrepair/2 Ldefect/2 Ldefect/2

  9. How to apply the 3X filler ? • Degrease perfectly the surface • Mix the two components of the filler • Apply strongly the filler onto the surface with a spatula • Do not let any corroded area free from filler • Create a dome with the filler • Apply the REINFORCEKIT aramid tape before the mastic has cured

  10. About the resin / the filler • Resin made of two components : - the resin • the hardener • When not mixed : no chemicalreaction •  When mixed : polymerizationreaction • Polymerizationreaction time depends on the resin, T°, mixing ratio… • To have a good reaction, youshould : • mix the correct ratio of resin and hardener • scrape the bucketswithspatula (correct ratio) •  have a good mixture of the two components • (no marbling, no lumps…) •  mix quickly the components to have time for application !

  11. How to wrap the aramid tape ? • Description of the aramid tape : • Differentwidth for 3X aramid tapes : - 50 mm • 100 mm • - 300 mm • Kind of weaving High tensileresistance • Colored threads are sewn on the tape to help the worker to wrapcorrectly •  Respect the thread Blue & red threads

  12. How to wrap the aramid tape ? • The aramid tape is wrapped helicoidally over the pipe • In order to move forward the tape, the new lap must cover a part of the previous one • The gap is the percentage of covering of the previous aramid lap • Example : gap = 1 : the new lap is shifted of 100% of the width of the previous one • gap = 2 : the new lap is shifted of 50% of the width of the previous one • gap = 3 : the new lap is shifted of 33% of the width of the previous one • The gap determines the final number of layers of the repair system •  We always use gap = 2 • Note : It is easier to unroll the tape as shown on the picture below : • What is a gap ?

  13. How to wrap the aramid tape ? • Once the filler is applied, cover the pipe with resin • Place the aramid tape at the beginning of the area to be fixed • Impregnate the aramid tape with the resin by using a paintbrush • Overlap the first layer • Wrap the tape helicoidally respecting the gap • Impregnate the outside face of the fiber gradually as shown on the picture below • Tighten strongly the tape on the pipe after each half tour (to avoid folds) • Repeat the previous steps until the tape is finished • Note : Mix the resin and the hardener only when you need it! • 1st step of wrapping:

  14. How to wrap the aramid tape ? • - Fold : when the tape is not perfectly stuck over the pipe • Folds can create a loss of mechanical properties in the composite material • How can folds be created? • What are folds? How to avoid them ? !

  15. How to wrap the aramid tape ? • How to begin again a new tape ? • How to finish an aramid tape? • Impregnate the end of the previous tape with the resin • Cover the previous tape with the new one on half the circumference of the pipe to avoid discontinuities • Overlap the first layer • Continue to wrap as previously • Tighten as strong as possible the aramid tape • Impregnate the two sides of the tape in order to be sure that no fiber appears free from resin

  16. How to wrap the aramid tape ? • Wrap not only in one way : • When arriving at the end of the repair length : •  cut the aramid tape if it is not finished (for the Ltaper) •  wrap helicoidally in the other way •  always keep the same direction of rotation • permits to cross the directions of fibers • increases the REINFORCEKIT-4D resistance to pressure Wrapping way Wrapping way

  17. How to wrap on a weld / a bump ? • Whenarriving on a weld :  impregnate generously the weld with the resin  continue to wrap as before without modifying the thread  tighten strongly to stick the aramid tape on the pipe

  18. How to wrap on a weld / a bump ? • Whenarriving on a bump :  cut the aramid tape with scissors as shown below  pass the bump through the aramid tape If needed :  cover generously the bump (already treated with Monti MBX) with resin  cut a piece of aramid tape and wrap it around the bump  do not leave any area uncovered on the bump to avoid corrosion

  19. How to wrap the aramid tape ? • Lover, Ltaper : • According to the ISO 24817, the total axial length of the repair is : • Lrepair = Ldefect + 2 x Lover + 2 x Ltaper • With : • Ldefect : axial length of defect • Lover : axial extent of design thickness of repair • Ltaper : axial length of taper • - Ltaper reduces axial loads

  20. Sum up of the REINFORCEKIT-4D procedure

  21. Procedure for the REINFORCEKIT-4D on a bend Onshore

  22. REINFORCEKIT 4D on a bend • The procedure is the same as for a straight pipe : • - Be sure that this is the good defect place • - Read the 3X procedure to know the length to fix • Thanks to a tape measure, define the correct area to treat and repair • The REINFORCEKIT 4D must be centered on the defect • Delimit the area thanks to an adhesive tape • Wear your personal protective equipments (PPE) • Create a roughness SA 2½ (about 60µm) by using MBX bristle blaster • Once the roughness is created, remove the adhesive tape • Degrease the treated surface with adequate degreaser (aceton) • Check the presence of pits and high corroded aeras • If the surface is not smooth, fill the pits with 3X filler • Before the filler cures, cover the pipe with the 3X resin • Put the aramid tape on the pipe and overlap the first layer • Wrap respecting the gap and tightening the tape as strong as possible

  23. REINFORCEKIT 4D on a bend • Define the correct area to treat • Treat the surface that have to be fixed • The repair area must be centered on the defect • A bend is alway fixed from weld to weld (or more)

  24. REINFORCEKIT 4D on a bend • How to respect the gap on a bend ? • The gap determines the final number of layers of the repair system • The gap must be the same on the whole bend • Measure the thread on the outside surface of the bend • Avoid folds on the inside surface of the bend by : •  using a smaller tape width if possible a a a a a a a a a

  25. REINFORCEKIT 4D on a bend • How to wrap correctly on a bend ? • Imagine the curve center of the the bend • Always place the tape in that direction

  26. REINFORCEKIT 4D on a bend

  27. Procedure for the REINFORCEKIT-4D on a Tee Onshore

  28. REINFORCEKIT 4D on a Tee • The procedure is the same as for a straight pipe : • - Be sure that this is the good defect place • - Read the 3X procedure to know the length to fix • Thanks to a tape measure, define the correct area to treat and repair • The REINFORCEKIT 4D must be centered on the defect • Delimit the area thanks to an adhesive tape • Wear your personal protective equipments (PPE) • Create a roughness SA 2½ (about 60µm) by using MBX bristle blaster • Once the roughness is created, remove the adhesive tape • Degrease the treated surface with adequate degreaser (aceton) • Check the presence of pits and high corroded aeras • If the surface is not smooth, fill the pits with 3X filler • Before the filler cures, cover the pipe with the 3X resin • Put the aramid tape on the pipe and overlap the first layer • Wrap respecting the gap and tightening the tape as strong as possible

  29. REINFORCEKIT 4D on a Tee • Define the correct area to treat Lrepair Lrepair/2 Lrepair/2 Ldefect/2 Ldefect/2 Lrepair/2

  30. REINFORCEKIT 4D on a Tee

  31. Understanding a R4D procedure • How to understand the R4D implementation procedure? - See the attached example

More Related