Foundry Sand
1.Ball-shaped
2. High refractoriness
3.Low coefficient of thermal expansion
4.Replaced chromite and zircon sand
Description of Foundry Sand
Foundry Sand is a kind of refractory particle with diameter of 0.020mm~3.350mm, mainly made
of Al2O3·SiO2. It is ball-shaped particle made from bauxite by high-temperature melting in
electric-arc furnace, spraying and cooling.
Features of Foundry Sand
? As solid spherical sand, the surface area is small, which can reduce one third the amount of
binder (resin, or R2O·nSiO2 etc.). Good fluidity, easy to fill and close-grained without dead
space when producing sand mould and sand core. Low gas evolution and high permeability,
can reduce defects, increase the rate of finished products and lower the cost of casting
material.
? High refractoriness, low coefficient of thermal expansion with good stability under high
temperature. During the process of foundry, the sand is easily dispersed, easy to clean, no
sintering and gluing on the casting, which reduce the deformation of the casting, reduce the
clean-up work and lighten labor intensity.
? Reasonable grading composition of the particle, improve the strength of casting mould and
sand core.
? The bulk density of ceramaic foundry sand is 1.79-1.87g/cm3, lower than the bulk density
of chromitesand (2.5~2.9g/cm3), the sand core is easy to move with light weight, and also can
reduce the usage amount of sand.
? The sand is man-made by melting under high temperature, so it has stable chemical parame-
ter, unified physical properties. Neutral material, both acid and basic binder agent can be
used.
? High durability and high recalamition yeild
Classification of Foundry Sand
1. Physical and Chemical Properties of Foundry Sand
|
Item
|
Index
|
Item
|
Index(%)
|
|
Bulk Density(g/ cm3)
|
1.79-1.87
|
Al2O3
|
65-82
|
|
Apparent Porosity(%)
|
<10
|
SiO2
|
15.32-21.6
|
|
Ambient Compressive Strength (Mpa)
|
46
|
Fe2O3
|
1.5-3.0
|
|
Refractoriness (°C)
|
≥1800
|
MgO
|
0.23-0.7
|
|
Refractoriness Under
Load (°C)
|
1720
|
CaO
|
0.16-1.5
|
|
Thermal Expansion Rate%(800-1450)
|
0.03-0.13
|
TiO2
|
1.99-2.71
|
2. Grain Size Composition of Foundry Sand
|
Model
|
Mesh
|
AFS
|
20 Mesh
and
Above%
|
30mesh
%
|
40mesh
%
|
50mesh
%
|
70mesh
%
|
100mesh
%
|
140mesh
%
|
200mesh
%
|
270mesh and below%
|
|
TCS-350#
|
30/50
|
25~40
|
≤10%
|
≥70%
|
≤10%
|
≤3%
|
|
TCS-450#
|
50/30
|
30~40
|
≤20%
|
≥70%
|
≤5%
|
|
TCS-550#
|
50/30
|
45-60
|
≤10%
|
≥70%
|
≤10%
|
≤5%
|
|
TCS-650#
|
70/140
|
55~70
|
≤5%
|
≥15%
|
≥70%
|
≤5%
|
|
TCS-750#
|
140/70
|
70~80
|
≤10%
|
≥70%
|
≤10%
|
≤6%
|
Applications of Foundry Sand
? Widely used in foundry technique like resin-bonded sand, sodium silicate sand, and clay-
bonded sand for sand core and casting mould making.
? Replace chromite sand and widely used in sand core making like jacket core, oil duct core,
tappet core of engine.
? Replace chromite sand for steel casting facing sand and sub-layer of molding sand (backing
sand).
? Widely used as dry sand and sand box for EPC process and V method of casting processes.
? Widely used as the main raw materials of advanced refractory products (Ladle drainage sand,
gravity casting material, casting coating, etc.).
? Widely used as cleaning sand for copper and aluminum alloy castings.
Quick Details
-
Place of Origin: Henan, China (Mainland)
-
Shape: Ball
-
Material: bauxite
-
SiO2 Content (%): 15.32%-21.6%
-
Al2O3 Content (%): 65%-82%
-
Model Number: JNY-TCS
-
Brand Name: jinnaiyuan
-
Fe2O3: <3%
-
Refractoriness (°C): ≥1800
-
Applications: Foundry sand
-
OEM: Yes
Packaging & Delivery
|
Packaging Details:
|
1.)packed in 25kg pvc bag 2.)1MT big bag 3.)according to customer's requirement.
|
|
Delivery Detail:
|
Within 15-20 workdays
|
Specifications
Foundry Sand
1.Ball-shaped
2. High refractoriness
3.Low coefficient of thermal expansion
4.Replaced chromite and zircon sand
Description of Foundry Sand
Foundry Sand is a kind of refractory particle with diameter of 0.020mm~3.350mm, mainly made
of Al2O3·SiO2. It is ball-shaped particle made from bauxite by high-temperature melting in
electric-arc furnace, spraying and cooling.
Features of Foundry Sand
? As solid spherical sand, the surface area is small, which can reduce one third the amount of
binder (resin, or R2O·nSiO2 etc.). Good fluidity, easy to fill and close-grained without dead
space when producing sand mould and sand core. Low gas evolution and high permeability,
can reduce defects, increase the rate of finished products and lower the cost of casting
material.
? High refractoriness, low coefficient of thermal expansion with good stability under high
temperature. During the process of foundry, the sand is easily dispersed, easy to clean, no
sintering and gluing on the casting, which reduce the deformation of the casting, reduce the
clean-up work and lighten labor intensity.
? Reasonable grading composition of the particle, improve the strength of casting mould and
sand core.
? The bulk density of ceramaic foundry sand is 1.79-1.87g/cm3, lower than the bulk density
of chromitesand (2.5~2.9g/cm3), the sand core is easy to move with light weight, and also can
reduce the usage amount of sand.
? The sand is man-made by melting under high temperature, so it has stable chemical parame-
ter, unified physical properties. Neutral material, both acid and basic binder agent can be
used.
? High durability and high recalamition yeild
Classification of Foundry Sand
1. Physical and Chemical Properties of Foundry Sand
|
Item
|
Index
|
Item
|
Index(%)
|
|
Bulk Density(g/ cm3)
|
1.79-1.87
|
Al2O3
|
65-82
|
|
Apparent Porosity(%)
|
<10
|
SiO2
|
15.32-21.6
|
|
Ambient Compressive Strength (Mpa)
|
46
|
Fe2O3
|
1.5-3.0
|
|
Refractoriness (°C)
|
≥1800
|
MgO
|
0.23-0.7
|
|
Refractoriness Under
Load (°C)
|
1720
|
CaO
|
0.16-1.5
|
|
Thermal Expansion Rate%(800-1450)
|
0.03-0.13
|
TiO2
|
1.99-2.71
|
2. Grain Size Composition of Foundry Sand
|
Model
|
Mesh
|
AFS
|
20 Mesh
and
Above%
|
30mesh
%
|
40mesh
%
|
50mesh
%
|
70mesh
%
|
100mesh
%
|
140mesh
%
|
200mesh
%
|
270mesh and below%
|
|
TCS-350#
|
30/50
|
25~40
|
≤10%
|
≥70%
|
≤10%
|
≤3%
|
|
TCS-450#
|
50/30
|
30~40
|
≤20%
|
≥70%
|
≤5%
|
|
TCS-550#
|
50/30
|
45-60
|
≤10%
|
≥70%
|
≤10%
|
≤5%
|
|
TCS-650#
|
70/140
|
55~70
|
≤5%
|
≥15%
|
≥70%
|
≤5%
|
|
TCS-750#
|
140/70
|
70~80
|
≤10%
|
≥70%
|
≤10%
|
≤6%
|
Applications of Foundry Sand
? Widely used in foundry technique like resin-bonded sand, sodium silicate sand, and clay-
bonded sand for sand core and casting mould making.
? Replace chromite sand and widely used in sand core making like jacket core, oil duct core,
tappet core of engine.
? Replace chromite sand for steel casting facing sand and sub-layer of molding sand (backing
sand).
? Widely used as dry sand and sand box for EPC process and V method of casting processes.
? Widely used as the main raw materials of advanced refractory products (Ladle drainage sand,
gravity casting material, casting coating, etc.).
? Widely used as cleaning sand for copper and aluminum alloy castings.
Quality Control of Foundry Sand
Raw Material Selection:
To ensure the quality of our raw materials, we only purchase our raw materials from our long-term trusted suppliers. With every purchase, our quality control staff performs the first inspection at our supplier's site. Once the raw materials arrive at our facility, our quality control team performs a second inspection on the batch. Each time raw materials enter our facility, they are inspected again prior to being accepted.
Process Quality Control:
From raw material to final product, our process control inspectors ensure that our procedures are consistently and correctly applied each step of the way. In addition to rigorous process control, our quality control team inspects the output of each process to ensure material quality and consistency. In each of our workshops, our employees understand that the output of their workshop is the input for the next manufacturing department. Therefore they have been trained to always carefully inspect the previous workshop's work and be responsible for their own output.
Our Service
? Industry and trade integration business
? Customize size are welcome,OEM,ODM acceptable
? Fast,accurate quotes
? The best price with good quality
? We offer a good after-sales service
About Us
1)We are manufacture
We produce nearly hundred kinds of products which belong to more than a dozen series, covering foundry spherical porcelain sand, coating, furnace lining, deslagging agent, cover agent, recarburization agent, resulfurization agent and desulfurization agent, etc.
2)We have ourself R&D personnel
Our company has an experienced technical and management team, advanced production technology, technical equipment and perfect detection methods, which can provide customers with high quality products and services.
3)Our company philosophy
Our company has always been adhering to the core values of "character made products" and put forward the business philosophy of "real life" , "tangible products" and "full services". We are sincerely looking forward to cooperating with you and hand in hand to create our brilliance.