Cast Iron Mechanical Parts, Iron Casting for Machinery Parts, Green Sand Casting, Machine Elements made in Iron Foundry
What is green sand casting?
Green sand casting is a common sand casting process using green sand as the molding material. Green sand does not mean sand in green color, but is a kind of wet quartz sand in the sense that it is used in a wet environment.
The mold is made by ramming prepared sand around a pattern, held in a flask. The patterns are withdrawn, leaving the mold cavity into which metal will be poured. Molds are made in two halves, an upper portion, the cope, and a lower portion, the drag. The boundary between cope and drag is known as the parting line.
Cores, made from sand bonded with resins and baked to give sufficient strength, may be supported within the mold cavity to form the internal structure of hollow castings. Chills of various designs may be embedded in the mold cavity wall to control the solidification process.
Risers are reservoirs of molten metal used to ensure that all regions of the casting are adequately fed until solidification is complete. Risers also act as heat sources and thereby help promote directional solidification. Molten metal is introduced into the mold cavity through a sprue and distributed through a system of gates and runners.
Cast Iron, Gray Cast Iron, Ductile Cast Iron, S.G. Iron, Grey Iron
Gray Cast Iron
ISO185 100 150 200 250 300
ASTM A48 NO.20 NO.25 NO.30 NO.35 NO.40 NO.45
DIN1691 GG10 GG15 GG20 GG25 GG30
EN1561 EN-GJL-100 EN-GJL-150 EN-GJL-200 EN-GJL-250 EN-GJL-300
BS1452 100 150 200 250 300
AS1830 T150 T220 T260 T300
Ductile Cast Iron
ISO1083 400-15 400-18 450-10 500-7 600-3 700-2
ASTM A536 60-40-18 60-42-10 65-45-12 70-50-05 80-55-06 80-60-03 100-70-03
DIN1693 GGG40 GGG50 GGG60 GGG70
EN1563 EN-GJS-400-15 EN-GJS-400-18 EN-GJS-450-10 EN-GJS-500-7 EN-GJS-600-3 EN-GJS-700-2
BS2789 400/17 420/12 500/7 600/7 700/2
AS1831 300-17 400-12 500-7 600-3 700-2
Sand Casting, Automatic Molding, Machine Molding, Shell Molding, Green Sand Casting, Resin Sand Casting,
Cast Iron Foundry in China, Iron Casting Manufacturer, Iron Foundry, China Foundry
Dandong Foundry is producing cast iron and cast steel castings by various sand casting and precision casting processes, including Automatic Molding Line, Resin Sand Molding, Shell Molding, Manual Green Sand Cast Molding, Shell Molding, Lost Wax Investment Casting Process by water glass and silica sol materials.
We have complete quality inspection devices for Mechanical Testing and Chemical Analysis, including tensile strength, hardness, metallographic inspection, hardness, spectrometer, ultrasonic testing. ISO 9001 Certified. We can issue quality reports for all inspections.
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