On existing metal support beams, welding joints we are well equipped to closely analyze and test for hairline cracks,breaks, in or out of plumb areas of the structure..
Detect surface flaws in advance of further production
Surface defects such as weld under-cuts, pin-holes and cracks
Test weld integrity to avoid costly rework and rejects due to hairline surface flaws
Repair tanks, boilers, large holding areas before hydrotesting D
Surface Weakness due to faults immediately
Non destructive testing of welds. Below are the types of testing we perform on existing metal structures already in place. We do not test welding joints or areas on beams in the production mode before installations. All companies that manufacture these types of beams or supports should following the requirements at time of production.
Visual Testing Inspections
This method combines a visual inspection and measurement of the geometrical parameters of welds to check their compliance with the required values. Before testing, the welds should be cleaned from scale, slag and metal splashes. erected already at this stage, the weld is considered as rejected, and further testing is not performed.
This method is based on the ability of the liquid to penetrate into and fill the smallest capillary channels that are essentially made by weld defects. Such defects include pores and cracks that break the surface of the material. The rate and depth of penetration of the liquid depends on the radius of the capillary and the wettability of the liquid. Thus, the penetrant method is very effective for detecting surface flaws. To increase its efficiency, the so-called penetrants are used which can penetrate deep into the capillary due to their small surface tension. Their bright color makes them noticeable, which facilitates the detection of a defect