Thermal, Arc and Flame spraying metallisation services
RFI Screening, based in Hertfordshire offer a full range of thermal spray technologies. We have electric arc and flame spraying equipment and provide a national service for shielding and screening of customer goods.
Thermal Spraying Properties
Corrosion Protection Thermal Resistance Electrical Conductivity Wear Resistance
RFI Shielding & Screening EMI Shielding EMC Shielding Thermal Barrier Coatings
Areas of use
Turbine Blades Aluminium Seal Strip
Heatshields
Rollers
Computer Casings Shielding
Vehicle Structures Corrosion Protection
Electrical Containment Boxes Shielding
Chutes Wear Resistance
Vessels Wear and Corrosion Resistance
Electric wire-arc spray
This method of thermal spraying incorporates a DC current power unit and specially designed spray gun. Two wires of the coating material are fed through the gun simultaneously at a specific angle to meet at the exit of the gun. One wire is charged positively and one negatively causing an arc to be produced which atomizes the material, the atomized material is subsequently propelled to the prepared work piece by means of high velocity air supply.
Wire grades we process
Zinc . Aluminium . Stainless Steel . Copper . Brass . Bronze . Silver .
Substrates
Ferous and non ferous. We have vast technical experience applying thermal spray systems to composit materials and accomodate intricate masking where required.
Flame Spray
Similar in principal to arc spray except that a single material wire is fed through the specially designed spray gun. The gun rather than working on an arc principal burns oxygen and acetylene and produces an intense flame which melts the wire as it is fed through it. Compressed air is used to propel the molten particles to the prepared work piece.
Wire grades we process
Zinc . Aluminium . Stainless Steel . Copper . Brass . Bronze . Silver .
Substrates
Ferous and non ferous. We have vast technical experience applying thermal spray systems to composit materials and accomodate intricate masking where required.
Tel 01920 822730 Fax 01920 821475