Heat Exchanger Repairs

Hello airmek

Can you place a close-up photo of the cracked area here, along with a second picture of the heat-exchanger.

Use a digital camera, and alter the file to .JPG, of .JPG file size smaller than 300kbits, then with your left mouse, click on the uploaded picture in a corner, and stretch the picture, so it is not as shrunken as happens during the normal Forum Software Graphics auto-shrinkage.

If you're not sure how to insert a graphic into a Post at please refer: http://cr4.globalspec.com/thread/15743/How-to-insert-Graphics-into-your-Post-to-make-it-more-readable-or-interesting

From how I understand your Post above, the crack is at the base of the cooling fin, where it joins onto thicker material.

The crack would appear to be a vibration stress crack, and because the cooler is under pressure, is going to be very difficult, or perhaps impossible, to repair in a satisfactory way.

Please advise thickness of the cooling fin, and also the base material.

Send the pics, with and perhaps better advice may be given.

Kind Regards....

Hello Airmek

You could try to use the Furmanite method, online sealing method. We are performing online sealing for critical situation with very good results.

Kind regards

We use Low temperature brazing for aluminum exchangers.