Foundry Sand
UNG group was founded in 2003, we specialized in the manufacturing of recarburizer for Steel industry, and investmenting the plants of calcined bauixte, Calcium aluminate and Ceramic sand. It characterized by its continual effort to update and improve its products range, and by the search for solutions to the problems and demands posed by its customers.OUR PRODUCT Carbon&Graphite Recarburizer, Calcium Alumin, Calcium Aluminate (Fused, Sintered), Calcined Bauxite, Mullite (Sintered, Fused), Ferro Alloys, Inoculant, Nodulizer, Black Silicon Carbide, Steel Shot.
Why Choose Us
Production Market
We have built a stable clientele worldwide, USA, Mexico, Spain, Germany, Italy, Poland, Middle East, Egypt, India, Southeast Asia.etc.
Our History
UNG group was founded in 2003 ,we specialized in the manufacturing of recarburizer for Steel industry, and investmenting the plants of calcined bauixte ,Calcium aluminate and Ceramic sand.
Our Service
Contact customers to understand their needs and make quotations. Confirm the order, and produce, pack and ship in time.
Our After-sales
Taking the initiative to take responsibility, the group constantly strives to update and improve the product range and seek solutions to solve the problems and needs raised by customers.
Description
|
Material |
Gray iron, ductile iron, ect. |
|
Process |
Sand casting, Investment casting, Lost wax casting + cnc machining |
|
Casting dimension tolerance |
CT7 |
|
Casting surface roughness |
Ra 12.5 um |
|
Casting weight range |
0.1-90 kg |
|
Casting Size |
Max linear size: 1200 mm, Max diameter size: 600 mm |
|
Machining Precision |
Positioning accuracy 0.008 mm, Rep. position. accuracy 0.006 mm |
|
Machining surface roughness |
Ra0.8 ~ 6.3 um |
|
Max Travel Of Spindle |
1900 mm x 850 mm x 700 mm |
|
Max Turning Diameter |
830 mm |
|
Material standard |
GB, ASTM, AISI, DIN, BS, JIS, NF, AS, AAR |
|
Surface treatment |
KTL (E-coating), Zinc plating, Mirror Polishing, Sand Blasting, Acid pickling, b-lack oxide, Painting, Hot galvanizing,Powder coating, Nickel plating. |
|
Service available |
OEM & ODM |
|
Quality control |
0 defects,100% inspection before packing |
|
Application |
Train & railway, automobile& truck, construction machinery, forklift, agricultural machinery, shipbuilding, petroleum machinery, construction, valve and pumps, electric machine, hardware, power equipment and so on. |
|
Keywords |
Investment casting, steel casting, precision casting, lost wax casting |
Foundry Sand is a versatile manufacturing process where a mold made of sand is used to create intricate metal parts. The process involves pouring molten metal into a mold made of sand, allowing it to cool and solidify. The mold is removed once the metal has hardened, leaving behind the final cast part. Mold sand casting is widely used for various applications thanks to its cost-effectiveness and adaptability for simple and complex geometries.
Chemical and physical properties
|
Cr2O3 |
≥46.0% |
|
SiO2 |
≤1.0% |
|
FeO |
≤26.5% |
|
CaO |
≤0.30% |
|
MgO |
≤10.0% |
|
Al2O3 |
≤15.5% |
|
P |
≤0.003% |
|
S |
≤0.003% |
|
Cr/Fe |
1.55:1 |
|
Bulk Density |
2.5-3g/cm3 |
|
Color |
Black |
|
PH |
7-9 |
|
The amount of the acid |
≤ 2 ML |
|
Percent soil |
≤0.1 |
|
Percent Moisture |
≤0.1 |
|
The sintered |
1600℃ |
|
Percentage of free acid present in the sand |
0 |
|
Filling density |
2.6g/cm3 |
|
Sintering point |
> 1,800℃ |
|
Melting temperature |
2,180℃ |
Chromite Sand in the foundry industry
Its properties enable the material to be used in high duty grey iron and steel foundries as core and mould making sand. Its high thermal conductivity gives it good chilling properties, low thermal expansion gives rise to good dimensional stability.
Chromite Sand in the steel industry
In steel production, Chromite Sand is used as well filler for protection of the sliding gate in large steel holding ladles.
Chromite Sand in the glass industry
When ground to a fine flour, Chromite Sand is used for the production of green glass beverage containers.
Packing&delivery
