Primary Aluminum Ingot &
Aluminum Master Alloy
For best quality of billets, the raw material such as
primary ingot and master alloy are supplied by the most reliable world
AirSlip & NuMax Billet Casting
The current technology of AirSlip & NuMax Billet
Casting System supplied by Wagstaff (U.S.A), compared with
conventional Hot Top Tooling, produces billets with thinner shell zone
and finer grain size, which supports extrusion velocity and quality.
Rotary Flux Injector (RFI)
We adopt Rotary Flux Injector (RFI) manufactured by
STAS (Canada) to refine molten aluminum. In order to achieve the
optimum mixture, flux and inert gas are injected into molten aluminum
through RFI's high velocity rotating graphite rotors. Temperature and
chemical composition can be uniformed; meanwhile, volume of alkaline
and impurities are reduced and cleanliness of molten aluminum
Electromagnetic Stirring (EMS)
In the bottom of furnace, we installed Electromagnetic
Stirring (EMS) manufactured by SHINKO (Japan). Without contacting the
metal, this equipment stirs the metal within the furnace by
electromagnetism, speeding stirring to achieve the goal of even
temperature and chemical composition. Compared with conventional
equipment, EMS shows better efficiency on high-strength alloys.
Al-Ti-B wire on Line
Al-Ti-B wire is used to refine billet structure.
Alcan Compact Degasser (ACD)
6-rotor Alcan Compact degasser (ACD) manufactured by
STAS (Canada) was installed in line. The injected argon generates
great amount of fine bubbles, which remove hydrogen atoms. This
efficiently minimizes hydrogen entrapped inside metal.
Double Filtration System &
Ceramic Foam Filter
To ensure quality standard of our billet, patented
double filtration system with the first layer of 26” Pore Size
(40~50PPI) and second layer of 23” Pore Size (60~70PPI) and LIG
preheat lid manufactured by Selee Corporation USA, are equipped in our
production line. Double filtration system can effectively remove
impurity particles and further ensure final product quality.
Wagstaff Casting System &
Tzan Wei’s casting tooling is MaxiCast Hot Top system
and AutoCastTM automated control system manufactured by Wagstaff Co.,
Ltd. The latter efficiently monitors and accurately controls all
process parameters. These systems help us produce thinner segregation
billets than other companies. The casting systems, coupled with Boll
cooling water filtration system, ACD on-line degasser, double ceramic
foam filters, Al-Ti-B grain refiner, and excellently stable hydraulic
control unit, produce premium quality aluminum billets.
Automatic & Continuous
The continuous homogenization furnace imported from
Austria is a type of horizontal billet feeding. It handles billets one
by one for providing more uniform treatment than batch type unit. The
whole homogenization process is monitored by computer programs, which
avoids any personal error. Tzan Wei’s furnace is the 1st unit
installed in Taiwan.
Batch-Type Furnace & Cooling
To comply with the homogenization requirements of
high-strength alloys, Tzan Wei installed four sets of 20-ton
batch-type furnaces and two sets of cooling furnaces. Equipped with
high efficiency thermal circulation fan manufactured by I.G.E. (USA),
the PLC system precisely controls the temperature and
increases/decreases temperature in different stages based on alloy
type. All are for best homogenization quality of aluminum billets. In
cooling furnace, there are 12 fans for controlling cooling rate of
homogenized billet. There is temperature measure for calculating the
cooling rate too.