Steel-constructions

Use of state-of-the-art measurement technology

Excellent stability, malleability and plasticity as well as high durability have made steel to an exceptional material. 70 per cent of the production volume is used for building lasting construction such as bridges, energy production and conduction plants, halls, means of transportation, machines and appliances. These multiple advantages however are opposed by one indisputable disadvantage: Steel corrodes! Alloys and / or coatings can compensate for this disadvantage. 

Coating material protects against corrosion

Passive anti-corrosion protection requires the application of organic or inorganic coating material. Inorganic protection coatings are mostly manufactured using various galvanizing methods. The impermeability against affecting media is crucial to the effective protection of the coating material used. Pores can lead to subsurface corrosion and destruction of the coating. Therefore, several coatings are applied to ensure lasting protection of steel constructions. In addition to the accurate selection of appropriate coating material, the quality of the coating process is of particular importance to the durability of the painted layers. 

Anti-corrosion protection prevents amounting to millions

The cost of anti-corrosion protection is relatively low when compared to the threatening obsolescence of constructions and the cost resulting from operation shut down. In the US for example the annual primary and secondary overall costs including consequential damage caused by corrosion (e.g. breaking of a lattice mast and the resulting power outage) are numbered to amount to 70 billion US Dollars. Due to the enormous importance of anti-corrosion protection to economy and business the safe implementation and inspection of anti-corrosion protection is supported by numerous rules and regulations. 

DIN-standards for inspecting coating thickness provide safety

As safety and security of large steel constructions are of such importance the DIN EN ISO 12944 part 7 "Corrosion protection of steel structures by paint systems - execution and supervision of coating work" explicitly specifies under sub-section 6.3 the use of devices working on magnetic-inductive and Eddy-current principles. In praxis measurement devices for anti-corrosion protection proved of particular advantage when easy to calibrate and safely to use. State-of-the-art wireless measurement devices providing accurate and undistorted transmission of measuring data via radio offer increased safety. 

Wireless coating thickness measurements

Working on steel constructions such as lattice masts and antennae, where coating thickness can only be determined when climbing, the QNix®-Keyless-devices and the modular measurement system QNix® 8500 have proven to be of particular advantage. Thanks to the hand-strip fitted, extremely small measurement probes of the 8500 system, free movement and safe undisrupted measuring is possible. Additionally, the radio-controlled probe QNix® 8500 allows wireless transmission of measurements via radio to a basis station on the ground, where the data can be checked, recorded and documented conveniently and without error. The worldwide new radio-control probe from AUTOMATION Dr. Nix for example, safely transmits data measured in the great height of an energy mast without interference to a basis station 50 meters distant - a notebook or a PC with which thousands of measurements can be recorded and documented using Excel. 

Overview: Coating thickness gauges from Automation Dr. Nix