ELECTRO-GALVANISING PROCESS

 

Galvanising is the covering of a piece of metal in a zinc bath to protect it from corrosion as well as giving i tan improved appearance.

 

Various methods are employed. small parts are galvanised in bulk in rotating drums, while for the larger sizes necessary for our cages, a frame is used to reduce surface friction on the material. In this case, the piece is cleaned and hung off a frame designed for this purpose. After the electrolytic bath a covering thickness of 6-12 microns is achieved

BICHROMATED ZINC PLATING

 

The application of chromium particles (passivating) on the galvanised surfaces has the objective of keeping the zinc layer intact for the longest possible time. The treatment is carried out in a chemical process (by immersion in a chromatizing solution).

 

The resilience to White oxidation in a saline medium, with a deposited coat thickness of 15 microns will be +/- 300 hrs. SFR (Salt Fog Resilience).

 

EPOXY PAINTING

 

This covering consists of applying a layer of epoxy paint to the metallic structure of the cage. In the first phase, a treatment of an amorphous multi-metal phosphate is applied to the surface, followed by a tap water rinse and then two washes with demineralised water.

 

The wet parts are then blow dried. Then a powder coating is applied (epoxy), in our case using the Tribomatic Nordson system of friction charging for a better quality friction.

This epoxy application system solves inconveniences such as the Faraday cage effect and that of retro-ionisation. A revision with paint guns in a plastic cabin carried out by specialists before polymerisation, guarantees an optimal final result.

 

Polymerisation of the surfaces is carried out by controlled heat according to the “time/heat” ration for each type of powder, and in accordance with the primary material’s manufacturers’ specifications, producing an average covering of 6-12 microns.

 

Epoxy has three advantages over KTL (E-coat) paints:

Coverage with more than70microns as against the 20-25 microns of KTL.

Equal in superficial hardness, abrasion, chafing and coverage are far superior in the case of powders.

From the Safety, Health and Environmental point of view, powder has no volatile organic compounds (VOCs).

PAINTING PROCESS

RILSAN PAINT

 

Plastic coating is an alternative to conventional finishes and an effective and durable solution that gives the processed piece some very special characteristics, remarkable for a great thickness given to coated pieces.

 

  • Excellent resilience to corrosion.
  • Good behaviour towards bad weather and UV rays.
  • High resilience to impacts and abrasion.
  • Chemical stability in aggressive environments.
  • Flexible coatings.
  • Electrical and Acoustic insulation.
  • Complies with sanitary and alimentary requirements.
  • Smooth, shiny finish with a pleasing feel.

 

RILSAN

 

Maximum quality and Surface hardness

 

COATING THICKNESS: 250 MICRONS
FUSION POINT : 186ºC

Saline Fog Resilience (2000hs. 5%NaCl – 35º)
= corrosion < 2mm working temperature: 110ºC

 

SHORE HARDNESS D= 60/80

 

Chemical resistance to organic acids, salts, alkalis, solvents, hydrocarbons etc.

PPA COPOLIMERO

 

EXCELLENT ADHERENCE

Excellent resilience without the need for priming for exterior applications and high chemical resilience.

 

COATING THICKNESS: 350 MICRONS FUSION POINT: 105ºC

Saline Fog Resilience = 10,000 hours high resilience to corrosion.

Working temperature: 60ºC

 

SHORE HARDNESS D= 44

Resilience to acid, salt, and exterior environments.

STRIPPING PROCESS

 

Stripping is the chemical treatment which acts on the surface of the stainless steel, eliminating impurities, contaminants and welding marks. Stripping achieves a homogenous, satin/matte, clean and passivated look, with the maximum anti-corrosive protection.

 

With stripping, a totally decontaminated surface, which is clear of welding marks, is achieved. Passivated surfaces guarantee the anti-corrosive properties of stainless steel.

 

Under the most common international rules applicable to stripping:

ASTM A380 • ASTM A 967 • ASME BPE • UNE-EN-2516

 

Or the specifics that our clients provide us with. The work is accompanied with the documentation of the processes and the results of the tests carried out.

PASSIVATING PROCESS  

 

Passivating is a process which produces the chemical elimination of metallic contamination on the surface of stainless steel produced by the processes of handling and fabrication of pieces and components (welding) and the regeneration of its passive layer by controlled and safe means.

 

Passivating is carried out in accordance with the most common international regulations or adapted to the specifics of our clients:

ASTM A967, ASTM A380, AMS 2700C, AMS QQ-P-35, UNE EN 2516,…

 

Passivation is an indispensable process for achieving a passive layer of correctly generated stainless steel chrome oxides, and therefore the resilience against corrosion indicated for all types of alloy.

 

Applicable in the chemical, pharmaceutical, aeronautic, aerospace, food, public works and building industries, or in general industry.