Radiographic testing

Radiographic testing is a process of recording inner and outer defects in three-dimensional objects on a two-dimensional film plane. Radiograph is a permanent recording in the form of a picture on a film. In order to create a radiograph we need a strong source of energy, a testing object and a film on which the permanent recording will be recorded.

Radiography is one of the best non-destructive methods of testing because it’s recordings are reliable and durable. Because of it’s potential health and environmental issues, the person who is operating the testing equioment must be highly trained. The equipment is expensive and complicated (it includes equipment for developing film), and laminar faults (cracks) are easily overlooked (depending on orientation).

Many radiography testing techniques are developed according to specific testing needs. Usual energy sources that are used are:

  • X-ray machines
  • Iridium 192
  • Selenium 75

Radiography testing is ususally used to test: welding joints, forged pieces and drip-mouldings.

Other methods

Radiographic testing

Radiography is a process of recording inner and outer defects in three-dimensional objects on a two-dimensional film plane.

Ultrasonic testing

Ultrasonic testing is based on the fact that solid materials are good at carrying sound waves.

PAUT- Phased array ultrasonic testing

An advanced method of ultrasonic testing that has applications in industrial nondestructive testing.

Magnetic testing

With the use of magnetic flux it is possible to find flaws on the surface of the object as well as directly below the surface.

Penetrant testing

Penetrant testing is one of the first widely accepted non-destructive testing method.

Visual inspection

Visual inspection is the oldest and the most common non-destructive testing method.

Business

Certification

Welder certification is done following the latest European standards and their requirements for the following welding processes: MIG, MAG, REL, TIG, gas welding

Training

Welder training is done according to our own program in our welding school in Sesvete using the following methods: REL, MAG, MIG, TIG, gas welding

Supervision and control

Supervision and control over the execution of welding works.

Non-destructive testing

Visual testing (VT), penetrant testing (PT), magnetic testing (MT), ultrasonic testing (UT), phased array ultrasonic testing (PAUT)…

Creating technical documentation for welding

WPS list, welding procedure qualification record (WPQR), welding technology

Mechanical calculation

In cooperation with our partners we offer: static calculation of construction, dynamic calculation of construction etc.