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BLAST APPLICATIONS
Blast cleaning and finishing solutions
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At Campbell Machinery we offer blastcleaning and finishing
solutions for a vast range of surface treatment applications.
We can help you to select the most appropriate system for
your particular needs - whether a basic manual
blast cabinet or a customised machine, for use by an operator
or automated
- and the right blast media to achieve the results you wish.
Guyson has many applications such as carbon removal,
metal deburring, plastic deflashing, heat scale and investment
removal, glass etching and surface preparation.
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Deburring
Blast finishing can speedily remove lightly attached burrs
from complex machined components and can be more effective
than hand or machine deburring in areas with poor accessibility.
Non-abrasive deburring media leave even fragile materials
untouched. Alternatively, Guyson can combine efficient deburring
with controlled surface modification, if required.
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Stripping
* Paint, lacquer and other coatings can be stripped off
with speed and precision without damage to sensitive substrates
and with no hazardous chemical handling or disposal problems.
If component irregularities are part of the coating problem,
blasting can often strip parts and leave surfaces in an improved
condition for re-coating. Our Euroblast®
pressure feed systems are regularly used by bodyshops
and garages for refurbishing alloy wheels.
* Guyson blast equipment offers a faster, easier and safer
alternative to labour intensive paint stripping methods such
as manual scrubbing, sanding, grinding, scraping and wire
brushing, chemical cleaning and acid etching.
* Blast equipment from Guyson can help achieve new levels
of precision, speed and efficiency in many architectural restoration
operations.
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Cleaning without dimensional change
* Using dryblast techniques pioneered by Guyson, even complicated
shapes and sensitive materials can be efficiently cleaned
without substrate erosion or dimensional change. Ideal for
the precision
cleaning of moulds, dies and tools without damage to delicate
surfaces. Large wheel-blast systems are often quoted for the
efficient cleaning of dies used in extrusion processes.
* Guyson Pencil Blast equipment is frequently used for cleaning
or removing heat scale from small intricate shapes, cavities
and mould surfaces. It can also be used for localised peening
applications and is often specified in conjunction with a
Guyson Formula
blast cabinet in aero engine repair and overhaul departments.
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Deflashing
* Bead blasting can be used to rapidly and thoroughly deflash
resin-moulded or die-cast components. Brittle flash can be
cleanly removed from intricate components without altering
adjacent surfaces by precise selective impact treatment. Alternatively,
the flash can be removed whilst an overall cosmetic finish
is produced on adjacent surfaces.
* Guyson's advanced media reclamation systems eliminate
the clogging and dust problems which may be created in less
advanced deflashing equipment. Guyson systems also address
the static and other problems associated with plastics deflashing.
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Descaling
* Use bead or grit blasting to quickly remove heat scale,
surface discoloration, oxides, rust, weld scale or corrosion.
Restore a component's looks and remove surface problems that
interfere with painting, plating, coating, drawing and other
processes. A Guyson blast descaling system may represent a
viable alternative to chemical descaling methods such as caustic
or acid processing with none of the inherent safety concerns
of using hazardous chemicals.
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Rapid prototype finishing
* If the objective of your rapid prototyping
finishing work is to get the model as near as possible
to the finished article for evaluation, testing, or actual
short run work, then Guyson blast equipment delivers the finish
you require. Blast finishing can smooth out step lines, create
the right cosmetic finish, and provide a keyed surface for
painting. With our blast equipment you can achieve that essential
finish that makes your products stand out from the crowd.
* Choose Guyson for that critical finish on Selective Laser
Sintering (SLS) prototypes: used often on automotive components,
resin and the latest stereolithography bluestone resin prototypes.
See how Guyson blast equipment for rapid prototype finishing
could benefit you.
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Surface etching
* Improved surface preparation or 'keying' of component
surfaces can be achieved using Guyson blast equipment. Fine
media blasting in one of our automated blast systems delivers
very real improvements in adhesion for performance critical
components such as medical
implants when they are etched prior to ceramic or PVD/CVD
coating.
* Blasting is also able to achieve an optimum surface profile
for improved coating adhesion which leads to subsequent improvements
in performance and lifespan of machine cutting tools and drills.
* A light surface etch improves bonding to smooth substrates
and is often used in the automotive interior and trim market
to aid bonding of veneers, plastic and rubber to superstructures.
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Cosmetic finishing
* Increasingly, cosmetic finishes can be the competitive
edge that makes your product more attractive to the consumer.
Whether you are addressing minor surface imperfections, replacing
an inconsistent manual blasting operation or streamlining
a high-production process, we can help. Guyson uniquely combines
expertise in unusual media that create a distinctive surface
finish with automation techniques to impart the look of quality
with uniform, consistent results. Appearances count more than
ever today. Guyson can demonstrate alternative finishes to
help you achieve the look you are after, then recommend an
automatic blast system to meet your production requirements.
* Manual blast systems come into their own on larger, heavier
or lower volume components. Euroblast®
manual cabinets fitted with side loaders prove the ideal
solution for stone and tile reconditioners, refurbishment
companies and restoration workshops seeking to replace slower
and more labour intensive methods. Blast finishing can deliver
effective cosmetic finishing, artificial ageing and distressing
on stone, brick, glass, wood, fabric, ceramic, plastic and
rubber artefacts.
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Investment removal
* Removing tough, strongly adhering investment from castings
made using the lost wax process calls for greater cutting
power, which is achieved using hard angular abrasive blast
media in an automated or manual pressure feed system. Typical
components which would require a very fine tolerance level
on intricate shapes and curves include items such as turbocharger
hot end wheels, cylinder heads, aero-engine turbine blades,
gold and silver jewellery, and dental plates.
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Shot peening
* Guyson shot peener systems utilise the latest in process
controls and draw on our pedigree in blast automation, enabling
us to build peening systems that can deliver a predictable
intensity with consistent, repeatable results, to your specifications.
Many Guyson automated
Multiblast® machines have been sold for peening turbine
rotors and blades to comply with worldwide aerospace standards.
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Engraving and etching glass
* Blasting can be used as a fine etching process to produce
logos and insignia on glass, pottery, cutlery and medals,
in an extremely fast operation – a drinking glass can
be etched with a measure insignia in around one second. Also
distinctive patterns, textures and frostings can be achieved
on flat plate glass and art glass by use of varied media types
and pressure settings. Ranges of dedicated machines specifically
designed for glass etching include Euroblast
GL manual blast cabinets for flat glass decoration.
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