Hard Surfacing

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These photos were shot on location about six months after Katrina. We were contracted to DH Griffin, the second largest demolition outfit in the US. We were contracted as the primary welding contractor, providing a multitude of services of which the main one was adding metal and hard surfacing welds to the large hydraulic tools used in cutting up metal beams, plate and piping and the large claws used to pick up this scrap and put it into trucks to be hauled away.

During the year Nautilus worked with them, DH Griffin demolished the Copa, the President, the Magic and part of the Palace. All of these casinos were built on barges and constructed to very stringent maritime specifications. Non the less, the machines used in this operation had no trouble in reducing these huge steel structures to scrap in short order.

Because of the enormous stresses and wear involved, we were kept quite busy rebuilding worn parts and adding hard surfacing material to the finished product.

An operator moves a shear over to the welding area to begin repairs. All repairs were made on site.


One of the DH Griffin personnel preheats the shear to 400 degrees Fahrenheit before the repairs can begin.


Ron begins adding the layers and layers and layers and layers of weld it will take to make the repair:

 

Adding buildup to the front and side of the shear after a new tooth had been installed.

 

Reworking the main bolt holes where the metal had broken.

The tooth replacement, bolt hole repair, build up and hard surfacing of this particular La Bounty shear took 5 days to complete. The cost of this to DH Griffin was a little more than a $2500. Compare that to the $116,000 cost of a new bottom jaw and you can well understand how valuable competent field welders are.


Once the repairs are finished, the shear can go back to doing what it does best, cutting up metal. This huge I beam is 3 ft high and 3/4 inches thick. As you can see the shear has no trouble with it at all.



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