Aluminum
Alloy/
magnetic
materials
High-purity
Aluminum Foil
Heat
Exchangers
Skyve heat
sink™
Automotive
Cooling Devices
Heating/
cooling
control
Purification
High-heat
processing
Laminate/
printing
Casting/
molding
Mixing/
dispersion
Aluminum Cans
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Extrusion and
Drawing Tubes
ContinuouslyCast Rods
SHOTIC™
SU610
AHS™
High-purity Aluminum Foil
Product Example
Our technologies
High-purity aluminum foils are used as electrode foils
of aluminum electrolytic capacitors after surface
enlargement treatment by customers, thus playing an
essential role for electric and electronic products.
 Refining technology
“Cojunal method” is a refining technology utilizing the
segregated solidification principle, which we were the first
in the world to commercialize successfully.
Refining ability: 99.9% Al → 99.998% Al
 Molten metal treatment technology
The “GBF method” is an excellent molten metal
treatment technology, whereby inert gas is blown into
molten metal as ultrafine bubbles to efficiently remove
hydrogen and non-metal inclusions in the molten metal.
 Organization control technology
Anode aluminum foil
Cathode aluminum foil
Lead wire (Terminal)
In the case of, for example, high-voltage capacitor anode
foil, since surface enlargement treatment is applied using
cube orientation, cube texture control is needed.
Aluminum lead
Non-cube
orientation area
Electrolytic paper
Cube orientation
area
Etching photo of the non-cube orientation and cube orientation
areas (Cross section)
Basic structure of the element
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Heat Exchangers
Product example
Refrigerator evaporator
・Evaporator for household/industrial
use refrigerator-freezer
〜Skyve heat sink™〜
Our technologies
 The use of aluminum for all components minimizes weight.
 We own aluminum rolling/extruding technology.
 We can design excellent heat-exchange performance.
(Highly heat-conductive oil circuit and cooling fin structure)
 We own junction technologies, such as welding and brazing.
(Strength, airtightness)
 We use the potential difference of materials to achieve highcorrosion resistance in material design.
Industrial use oil cooler
・Lubricant oil cooler and compressed air
cooler for various industrial machines
High-precision heat sink
・Heat sink for cooling control panels
of various industrial machines
 We can perform integrated manufacturing from heat design
and material production to assembly.
 We have the manufacturing ability to ensure no complaints
arise in the market.
 We can design the structure and specifications suitable for
the customerʼs usage environment.
(Hydrophilic surface treatment, low frost formation
structure, etc.)
Wide/light/thin
Large size/low cost
Skyve heat sink
Extruded heat sink
High heat diffusion performance
Heat pipe heat sink
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High design freedom
Brazed heat sink
Roll bond panel type
heat pipe container
Examples of high-precision
heat sinks
Automotive Cooling Devices
Product Example
Our technologies
Vehicle-installed inverter
cooling device
Direct cooling type
cold plate
 We own the technology of aluminum bulk
brazing of the ceramic insulating substrate
and the heat sink.
 We own aluminum forming technology, i.e.,
extrusion, rolling, forging, and press method.
 Down-sizing and space-saving can be
achieved thanks to the improved
performance.
PCU
(Power control unit)
IGBT element
 We own aluminum rolling/extrusion
molding technologies.
LiB battery
Ceramic
insulating
substrate
 We own joining technologies, such as
welding and brazing.
Vehicle-installed
secondary battery
cooling device
Water-cooled LLC
or
air conditioning
cooling medium
 Thin panels can save space.
RB (roll bond)
panel aluminum
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 Either an internal fluid LLC or cooling
medium can be used.
Continuously-cast Rods
Product Example
Valve
retainer
Engine piston
Body of highpressure pump
for directinjection engine
〜SHOTIC™〜
Our technologies
OCV sleeve
for VVT
Propeller
shaft yoke
 Gas-pressurized hot-top continuous
casting process
 Gas-pressurized completely horizontal
continuous casting process
The gas-pressurized completely horizontal continuous
casting process has evolved from the gas-pressurized
hot-top continuous casting process to produce thinner
SHOTIC™ rods with higher productivity. Our technological
capability is world-leading.
SHOTIC™
Eutectic Si Shrinkage
cavity
Eutectic
Si
Comparison
materials
Eutectic Si
Car air
compressor parts
(Si content = 11%)
AHS-2 continuously-cast rod
(Si content = 11%)
ADC12 die cast
(Si content = 11%)
Intermetallic
compound AC8A casting
Microscopic organization of Al-eutectic Si alloy
Upper arm of the suspension
Brake caliper &
piston
Pore
Track record of replacing iron parts with aluminum
(Swash plates, suspensions, brake pistons, etc.)
Track record of improving aluminum casting functionality
(Compressor pistons, engine pistons, etc.)
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Contact Us
Products・Technologies Inquiry of the products
High-purity Aluminum
Foil
Heat Exchangers
Automotive Cooling
Devices
Continuously-cast
Rods
March 28, 2016 Rev.
Corporate R&D Department
Showa Denko K.K.
TEL & FAX
Aluminum sheets group, Marketing department
Aluminum Rolled Products Division
TEL：+81-3-5470-3546
FAX：+81-3-5470-3770
High purity aluminum various products
http://www.sdk.co.jp/english/products/150/152/2068.html
Electrical & Industrial Cooling Device Group, Cooling
Device Marketing Department
Aluminum Specialty Components Division
TEL：+81-3-5470-3302
FAX：+81-3-5470-3770
Skyve heat sink™
http://www.sdk.co.jp/english/products/150/153/2079.html
Automotive Cooling Device Group, Cooling Device
Marketing Department
Aluminum Specialty Components Division
TEL：+81-3-5470-3595
FAX：+81-3-5470-3775
Cooling devices for power electronics installed in hybrid cars
http://www.sdk.co.jp/english/work/aluminumspecialty/13717/13718.html
Shotic Group, Specialty Material Marketing Department TEL：+81-3-5470-3595
Aluminum Specialty Components Division
FAX：+81-3-5470-3775
SHOTIC™
http://www.sdk.co.jp/english/products/150/154/2087.html
Ideas, hopes and dreams
for your happily ever after.
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