ON-SITE SERVICES FROM MIC

Our on-site service is suited to the treatment of equipment or plant which cannot be moved due to size or installed on their foundations. Our customers are typically in the aerospace, oil, gas, chemical and power generation industries covering MRO work, steam turbine repairs but also include welded structures such as bridges, storage vessels and damaged surfaces in street furniture and other architectural applications, miscellaneous processing plants such as steel and paper mills, mining facilities and food processing.

By attending on-site, MIC can help customers minimize their down time, reduce maintenance costs and avoid logistic and shipping costs for oversize equipment where size may exceed current shipping limitations.

Our experienced crews will meet the same stringent quality approvals and procedures followed in our own processing divisions to meet our customer's industry specifications.

Typical reasons for on-site work include:

• Fatigue
• Fretting Fatigue
• Cavitation Corrosion
• Forming or Correcting shape of distorted components
• Stress Corrosion Cracking
• Corrosion generally
• Exfoliation corrosion
• Filiform corrosion

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CONTROLLED SHOT PEENING

Controlled Shot Peening induces beneficial residual compressive stresses to enhance the performance of metals, protect critical structures and prevent premature failure. It is used extensively by many industries during initial manufacture and it may be necessary during the lifetime of those structures to re-introduce those beneficial residual compressive stresses lost through corrosion, erosion, wear and potentially thermal or stress overload. In these situations it is necessary to re-introduce those beneficial stresses in the same manner as initially applied to ensure identical performance. Sometimes on site it is essential to repeat processing as initially applied via fully mechanised or even robotic processing – all within the capability of Metal Improvement Company.

CONTROLLED SEARCH PEENING^SM

A development from controlled shot peening is Controlled Search Peening^SM. This process searches for sub-surface exfoliation, exposing structures with reduced strength by induces surface compressive stresses. This stretches and yields the outer material and induces visible blistering and flaking at the surface indicating the existence of exfoliation corrosion that is selectively attacking the aluminium substrate via the grain boundaries. Dressing to remove exfoliation and subsequent inspection with search peening again may reveal further fresh areas of exfoliation and/or other visible surface corrosion which will require repeated processing .

It is essential that after any corrosion removal and blending that beneficial compressive stresses are restored to the component by controlled peening.

FLAPPER PEENING

This process is a highly effective, clean and a quick alternative to controlled shot peening used after blending to restore the beneficial compressive stresses. Components can be treated in situ and no masking is required making it ideal for small areas of repair in critical components reducing maintenance costs and downtime. It is not as effective as controlled shot peening but in specific cases an acceptable alternative.

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AEROSPACE COMPONENTS

• Aircraft structures
• Undercarriage components
• Engine structures including cowlings
• Horizontal/vertical stabilizer lugs

WELDED STRUCTURES

• Bridges and welded structures generally
• Crusher bodies
• Ship hulls and transmissions including shaftsfood granular conveying structures

OIL, GAS AND CHEMICAL

• Pressure/storage vessels/tanks
• Fans
• Heat exchanger tubing

POWER GENERATION - WIND, OIL, GAS AND NUCLEAR

• Wind turbine structures
• Turbine rotors
• Turbine casings
• Heat exchanger tubing
• Fans
• Water droplet and particle erosion
• Welded vessels and structures

ARCHITECTURAL

• Street furniture
• Hand rails
• Stairways
• Sculptures

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