Spherical Sodium Silicate 70/140# Ceramic Foundry Sand
|Place of Origin:||China|
Payment & Shipping Terms:
|Minimum Order Quantity:||1000kgs|
|Packaging Details:||Ton Bag|
|Delivery Time:||3-7 days after order confirmed|
|Payment Terms:||L/C, T/T, Western Union, MoneyGram|
|Supply Ability:||2500mt per month|
|Commodity:||Ceramic Sand||Product Name:||Ceramic Foundry Sand|
|Color:||Grey Brown||PH Value:||7-8|
|Refractoriness:||≥1790 ℃||Bulk Density:||1.9-2.1g/cm3|
|True Gravity:||3.3g/cm3||Average Coefficient Of Linear Expansion:||≤6*10-6℃-1|
|Main Material:||70% Al2O3 Min.||Shape:||Sphericial|
70/140# Ceramic Foundry Sand,
Sodium Silicate Ceramic Foundry Sand,
Spherical Sodium Silicate Sand
Low breakage rate Ceramic Foundry Sand 20/40#,30/50#,40/70#,50/100#,70/140# For Sodium
1. Product Description of Ceramic Sand
Ceramsite is also called as Ceramic foundry sand.It selects the high quality bauxite as main raw material,
then made into different size through the process of calcination, electric melting, granulation, and sieving.
Ceramic sand has high refractoriness over 1790℃, it can help to reduce the sand adhering to the casting
parts,especially when used for steel castings & stainless steel parts with higher temperature.So it is an
advanced substitute for quartz sand in casting industries.
2. Main Technical Data of Ceramic Sand
|Commodity||Main Chemical Index||Main Physical Index|
|Ceramic Sand||Al2O3 ≥70%
Coefficient of Expansion:0.13%
(Heat 10Minutes under 2000℃)
(Heated Surface 800℃)
(Very similar to spherical)
Average Coefficient of Linear Expansion≤6*10-6℃-1
|Remark||Special specification can be customized|
3. Main Features of Ceramic Sand
Solid Sphere: Ceramsite has solid spherical shape with smooth surface,it will provide good flowability and
Low thermal expansion rate: it will guarantee the casting size, provide less crack and defect and improve
Low breakage rate: ceramsite has higher density and lower breakage rate at the reclaimation,which provide
one better reclaimation rate,then reduce the production cost.
High refractoriness: ceramsite contains Min. 70% Al2O3,which provide good refractory performance,then
suitable for all kinds of metal and alloy castings.
4. Main Applications & corresponding specification:
Lost Foam casting: Ceramsite 14#,20#,30#,14/20#,20/30#,20/40#
Investment casting: Ceramsite 100/200#
Sodium silicate sand:20/40#,30/50#,40/70#,50/100#,70/140#
Casting coating: 200#,270#,200/270#
Drainage sand: 20/30#,20/40#
Alloy surface treatment:40#,140#
5. How to store the ceramic sand?
Use strong moisture-proof package;
Keep it in clean, dry and ventilated place;
Keep away from dust.
6. Why Ceramic Sand can replace the chromium sand as drainage sand?
Ceramic sand has lower bulk density and price compared with chromium sand,it will reduce the sand
consumption and final production cost.
Ceramic sand also has higher cast ratio,it will effectively reduce the strength of sintering layer,it is helpfu
Its lower thermal expansion rate can reduce the expansion rate and improve the yield rate.