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Casting Process






 
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+ INGOT Inspection
:Aluminum raw material used to make gravity
casting product.Alloy elements and its mechanical
properties must satisfy quality standards.
+ COATED SAND
:Resin Coated Sand used to make the inside of the
product vacuum. Elements, Resistance to cutting
must satisfy the standards.
+ Melt AL-Ingot, Tangu, Scrap etc with LNG Gas
inside the smelting furnace then supply it into each
cast using laddle.
+ HEPROJECT M/C
:Spray N2-Gas & Flux inside to get rid of impurities
and air bubbles from the melted Al-Ingot before
pouring it into casts.
+ Pressure Reduction TEST
:Analyzing H2-Gas content inside melted AL-Ingot
by solidifying it from the fluid status.
+ Work to improve the casting and mechanical
properties by going through minute particle
treatment & alloy structure construction.

+ Molding process by pouring electro-heated Resin
Coated Sand into the metal cast. It is the process
to make the inside of AL cast products vacuum the
facility types are diverse depending on the shapes.
+ Process of pouring the melt inside the mold, cool it
naturally and do the next process. The working
conditions vary a lo depending on the size and the
shape.
+ Uses cooling fan to cool the hot mold down to room
temperature so as to make the next process
easier.
+ Air hammer is used to put out air from the inside
core of the molded & cooled product.
+ There are automatic & manual cutting.
Unnecessary parts of molded products are cut out.
+ Divided into Primary Sasang(Chipping process of
various AL Burr with Air tool) and Secondary
Sasang(Grinding process for flat securing
purpose).
+ Process of getting rid of Mid-formed Sand and
stains from the products.
Two methods: (1) Internal Sand Shot to secure
intensity of illumination
(2) External Shot using Sub ball
+ Process of checking congestion and other defects
using naked eye and X-rays.
+ Secondary Confirmation Process for congestion
and other defects.
+ Process of supplying the finished products to
customers after having packaged them in the
appropriate manner (index adhered).




 





 
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