Services

Mechanical Polishing

OMC offers Grinding, Polishing and Buffing services in our workshops in Limerick and we can also provide trained polishers to carry out polishing on vessels and pipe work on sites.

These processes improve the surface conditions of a product for decorative or functional purposes. The various techniques are abrading operations although some plastic working of the surfaces may occur, particularly during buffing.

The stages in this process include:

• Grinding
• Polishing
• Buffing

The stages in the process follow the order in which they do for the reasoning that Grinding permits a far more aggressive a brading action compared to Polishing. The same applies to Polishing being a more aggressive brading action compared to Buffing. These services require highly skilled workers with many years of experience and a thorough knowledge of the art of their craft. OMC Technologies provide their staff with the necessary training needed on an on-going basis.

Chemical Treatment Services

Initially OMC begin by carrying out an onsite assessment in order to be able to recommend the chemical treatment service best suited to each specific client’s site situation.

OMC provide the following cleaning services:

Dynamic Flushing:
OMC provide a full pre-clean service for new pipe work installations. This Flushing service aims to remove grease, swarf and debris typically found in new pipe work.

Degreasing:
OMC provide a range of different alkaline degreasing solutions to remove the presence of grease from pipe work. All solutions are tested and certified for concentration prior to being used on site.

Chemical Clean:
OMC provide a service to remove the surface layer of ferrous oxide from the inside of the pipe.

Inhibitor:
Inhibitors are added to control the further corrosion of the pipes services under normal operation.

All these services are carried out under the BSRIA Guides recommendations. (BG-29/2012 Pre-Commission Cleaning of Pipework Systems)

Degreasing & Passivation

OMC Technologies provide both degreasing & passivation services to our clients.

According to ASTM A 380-06 & ASTM 967-05, passivation is “the removal of exogenous iron or iron compounds from the surface of a stainless steel by means of a chemical dissolution most typically by a treatment with an acid solution that will remove the surface contamination but will not significantly affect the stainless steel itself.”

If left untreated, the result will be premature corrosion and ultimately result in deterioration of the component. Passivation removes all traces of iron present in stainless steel and in addition facilitates the formation of a very thin, transparent oxide film, which protects the stainless steel from “selective” oxidation (corrosion).

Derougeing

Rouge is a by product of corrosion and occurs on stainless steel surfaces when exposed to a corrosive environment either from an external source or from the destruction of the passive layer.

The primary constitutes of rouge are iron oxides (ferric oxide FE203, or ferrous oxide FE304), but may include iron, chromium, nickel and other elements.

Initially, rouge may slough off, but eventually it will adhere to the surface as a glossy coating that is not removed by wiping.

The surface corrosion may eventually contribute to increased microbial contamination and further deterioration of the stainless surface.

Electropolishing

Electropolishing, also known as electrochemical polishing or electrolytic polishing (especially in the metallography field), is an electrochemical process that removes material from a metallic workpiece.

It is used to polish, passivate, and deburr metal parts. It is often described as the reverse of electroplating. It may be used in lieu of abrasive fine polishing in microstructural preparation. RA Readings can be carried out in our premises if required.

Pickling

Pickling is a metal surface treatment used to remove impurities, such as stains, inorganic contaminants, rust or scale from ferrous metals.

A solution called pickle liquor, which contains strong acids, is used to remove the surface impurities.

Water Treatment Services

OMC provide specialised Water Treatment services to assist clients comply with the Health & Safety at Work Act and associated Regulations and Codes of Practice. OMC Technologies are committed to assisting companies to adopt a systemic approach to their legislative and maintenance requirements.

Our specialised services have been developed to initially assess the onsite requirements of our client, to recommend the most suitable service and to provide the necessary procedures for our customers.