Product category:
Materials processing and testing
News Release from: Henkel Loctite Adhesives | Subject: Impregnation services
Edited by the Engineeringtalk Editorial
Team on 17 September 2002
Impregnation system reduces costs and
saves time
The process of impregnating parts to seal cracks and porous areas is a well established technology and the Loctite Impregnation Centre at Wednesbury boasts one of the most modern plants in the UK.
The process of impregnating parts to seal cracks and porous areas is a well established technology and the Loctite Impregnation Centre at Wednesbury in the West Midlands boasts one of the most modern plants in the UK It draws on Loctite's extensive experience of the technologies involved to make it a highly efficient and cost effective process, capable of turning product round in less than 24 hours
This article was originally published on Engineeringtalk on 6 Mar 2001 at 8.00am (UK)
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Impregnation is used to seal porous areas, shrinkage cavities, capillary pores and cracks in a wide range of materials including casting alloys, sintered metals, ferrites, ceramics and composites.
By allowing products to be used that would otherwise be scrapped, production costs are reduced and delays due to component shortages are minimised.
For many mouldings and castings, porous areas and other faults are inherent in the process and do not reflect on the quality of manufacture.
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Henkel Loctite Adhesives has developed the Loctite Design Programme to allow design and maintenance engineers to benefit from its considerable technical knowledge and application experience.
Impregnation is highly effective in rectifying these problems.
It can be used as part of the manufacturing process and applied to the total production or it may be used for rectification to recover product that has failed quality control checks.
Loctite's recently installed, high-technology plant is totally self-contained and designed to be a completely 'green' process with the impregnation resins and wash liquids being fully recovered for re-use.
It is fully automated and computer controlled to ensure consistency of the process and maintain quality.
A wide range of products can be accommodated from small components like pipe fittings, carburettor bodies, hydraulic and pneumatic fittings, to large items including gearbox castings, engine sumps, engine blocks, radiators and manifolds.
Components can be processed either as cast/moulded or fully machined and are secured so no damage to the machined surfaces can occur.
There is no distortion of parts and when complete, the components are free from corrosion or oxidation and are ready for use without further treatment.
The cured impregnant in the treated parts can withstand oils, grease, virtually all acids, liquid fuels, gases as well as coolants and solvents.
Continuous operating temperatures may range from -90 to +200C with short-term exposure to 250C.
The Loctite vacuum impregnation system has been used successfully for over 25 years and many parts sealed using the process are in daily use without any loss in performance.
The centre at Wednesbury is part of a network of impregnation centres located through out Europe.
Based on this considerable experience, the Loctite engineers are able to discuss every aspect of vacuum impregnation with design, production and quality engineers to suggest the best approach to any impregnation requirement.
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