Sunchem A series EPS belongs to the raw material in standard expansion ratio to realize relatively light gram weight by one-time expansion and the lighter density after several expansions. It can be widely used in machinery and electronic products packaging, agriculture and fishery packaging vessel, thermal insulation and heat preservation material in building, fishery flotation buoy, crafts, food and drinking container, decorative material, lost foam casting and light apparatus with resistance to attack.
The expansion ratio to A series can be a little higher to obtain good preservation and rigid molding. The product has the properties of good fusion, smooth surface, wide option for operation, good applicability and difficult shrinkage and distortion.
|A-103||1.00-1.60||11-14||Use for block and low
|A-104||0.85-1.25||12-15||Use for product more than
|A-105||0.70-1.00||13-17||Use for middle density
|A-106||0.50-0.80||14-18||Use for product more than
|A-107||0.40-0.60||15-18||Use for product more than
|A-108||0.30-0.50||20-28||Use for molding and
1.Pre-expansion: Batch pre-expander(“FANGYUAN”PSY-90 type)
|Main steam pressure(kg/cm2)||3-4|
|Steam pressure for pre-expanding(kg/cm2)||0.10|
|Temperature in vessel(℃)||92-98|
|Heating time (s)||25-40|
|Maturation after pre-expansion||A-series|
|Summer & Autumn||3-4h|
|Winter & Spring||3-4h|
3.Molding:(“jin Cheng”JC-ll D type)
|Main steam pressure(kg/cm2)||5.0-7.0|
|Cooling water pressure(kg/cm2)||3.5-5.0|
|Mold fixing pressure(kg/cm2)||0.40-0.50|
|Mold moving pressure(kg/cm2)||0.35-0.45|
|Penetrating heating (s)||11-17|
|Molding heating (s)||6-10|
|Heat preserving time (s)||5|
|Water cooling time (s)||15-25|
|Sealed time (s)||10-15|
|Cycle time (s)||130-150|
The above tables show the types and grades of SUNCHEM EPS that are currently available.
IMPORTANT: The data descriptions, designs, and information contained herein are believed to be accurate to the best knowledge of SUNCHEM. It is intended for your guidance only.
Considering different equipments etc., the processing data above is only for reference.