Mobile welding equipment is used in many different environments. Consequently, their casings are protected against corrosion by a base coating and then finished with a decorative top coating. However, the complete curing of both coatings involves considerable cost – and until now considerable time. A gas catalytic oven from Heraeus is now significantly helping to allow the anti-corrosion coating on the mild steel casings of the welders to be dried in half the previous time. This also saves operating costs.
This innovative solution has been developed by Miller Electric Mfg LLC, a leading manufacturer of arc welding equipment, with the coating supplier TCI Powder Coatings and Heraeus. The heart of the new system is a gas catalytic infrared oven, which removes the requirement for a full cure of the Zinc primer. The final top coat can be applied whilst the primer has reached the gel stage in the Gas Catalytic IR oven . The final top coat can then be applied, before coated parts pass through a convection oven for final cure. This process actually improves the bond between the primer and the top coat, yet shortens the total cure time.
The Miller Electric engineers sat down with IR specialists from Heraeus Noblelight and the powder supplier TCI Powder Coatings to examine the opportunities offered by gas catalytic infrared. These investigations revealed that a totally innovative solution could eliminate the separate curing process during base coating required by the existing system.”
Are you interested in the complete case story on this topic?
Heraeus Noblelight will present this and other innovative infrared solutions for drying coatings at the PaintExpo exhibition. We look forward to welcoming you at our booth!
April 17 - 20, 2018
Hall 1, Booth 1526