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LAP KEUNG PRECISION WILL BE AT THE HONG KONG WATCH & CLOCK FAIR 2006
It's another exhibition year where Lap Keung will show his devotion to the competitive
watch-industry. We will be showing our brand-new case models, designed by our in-house R&D Engineers,
showing the uniqueness and the luxurious polishing which will speak for themselves as "QUALITY".
Plese feel free to stop by our Booth #GD23 to experience our enthusiasm for the 2007 season.
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NEW
ALTERNATIVE TO MAKE METAL PARTS
LAP KEUNG PROMOTES METAL INJECTION MOLDING (MIM)
TO THE TIMEPIECE INDUSTRY
The competition in the watch and clock market
has been very fierce. to gain a position in the
market, many watch manufacturers put them in the
cutthroat price war, but some, who have broader
ambitions, devote themselves to the production
of high-value added timepieces with intricate
designs. for them, the technology Metal Injection
Molding , MIM for short, provides an alternative
to realize their unique designs, whether they
are watchcases, watch bands or buckles.
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HIGH
FLOW RATE REALIZES INTRICATE DESIGNS
Powder Injection Molding (PIM) is applicable
to various kinds of materials such as black and
ferrous metals(such as stainless steel and high-speed
steel), nickel iron, tungsten carbide, fined ceramic
and magnetic materials, etc., and the MIM is a
technique which has been established and widely
adopted in the USA, Japan and European countries
for the past two decades. Featuring extremely
high flow rate, it is a technology for large volume
production of metal parts with quite intricate
shapes.
"The flow rate of the MIM is as high as Plastic
Injection Molding, so it can be used to make parts
in all shapes that can be realized by Plastic
Injection Molding, " Sunny Luk of the MIM
Dept. of Lap Keung Precision said. " Technologically
speaking, the size and thickness of the MIM parts
are limited, which affect the sintering time and
raise the MIM costs."
The expensive MIM parts feature high relative
density, so they have no pinholes even after polishing,
and can be electroplated. The MIM parts are easily
deformed during the sintering process, hence experienced
workers are highly required, which also raise
the MIM costs.
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IMPOSSIBLE
BECOMES POSSIBLE
Another application highlighted by Lap Keung is
the realization of back-sealed case blanks, which
are technologically impossible to manufacturers
of watch case blanks using conventional methods.
" Traditionally, the center of case blank
has to be made hollow to provide an outlet for
the residues to get out during post-casting machining,"Mr
Luk said. "But with the MIM, the need for
post-casting machining is basically eliminated,"
He emphasized, if the mould is exquisitely made,
the MIM parts can be put for direct use without
polishing, although little CNC machining is still
needed on individual places, such as the lens-sitting
and back-cover-sitting areas of a watch case.
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