The company produces river (washed) sand - used in the construction industry (residential and industrial construction); for the production of concrete products, concrete, mortar, paving slabs, for landscaping, building roads, pipelines (water supply, sewage, gas pipeline), etc.
Have all need sertification and garantie quality. ISO 9001:2009
Sand is typically made mostly of varying amounts of material weathered from inland rocks (or seacliff material) and transported to the beach on the wind or in rivers, and/or shells and other hard parts precipitated out of the ocean water by marine organisms. Sand therefore records processes at a variety of timescales
River sand is used in the construction industry mainly for concrete production and cement-sand mortar production. River sand is obtained by dredging from river beds
Foundry chromite sand for foundry use as a highly fireproof sharpener for moulds and cores. Originally from South Africa. The sand is produced by crushing chrome ore and its washing in spiral concentrators, subsequent drying, dust cleaning, screening and sorting as per grain size.
Chemical composition
Cr2O3 46.0%min
SiO2 1.0%max
FeO 26.5%max
CaO 0.3%max
MgO 10.0%max
Al2O3 15.5%max
P 0.003%max
S 0.003%max
Cr/Fe 1.55/1
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Step1: chrome ore raw material is processed by water washing.
Step2, drying raw materials to remove water;
Step3, drying raw materials into the vibrating screen, screening out the size of the customer needs;
Step4, the size of the sieve for magnetic separation, the purpose of iron and silicon removal. After magnetic separation, the chromium content reached more than 46% and the silicon content was less than 1%.
Step5: package the finished product.
Foundry chromite sand is a natural process products of chromite through the broken screen classification, chrome ore, its main chemical composition of cr2o3, this kind of sand heated volume stability, high thermal conductivity, when in contact information with the molten metal, not only has good resistance to basic slag, not with ferric oxide and other chemical reactions, and itself has the characteristics of the solid phase sintering, can be a very good prevent the infiltration of molten metal, avoid to touch sand defects, suitable for all kinds of stainless steel, alloy steel and carbon steel gradually shape the original sand core and coating.
Chromite ore, also known as chromite ore, is a special sand for casting, is a natural spinel based on chromite, after crushing, grinding, screening into a specified size, suitable for molding (core) sand.
Garnet sand is made of garnet as raw material. It is a kind of iron-aluminum silicate with moderate hardness, high melting point and stable chemical properties. According to different products and structures, it presents different colors, such as dark red, brown red, pink and black. Widely used in optical industry, electronic industry, machinery industry, oil and gas and other industries.
Details:
Details:
1.Place of original: HENAN?china
2.Material: Almanding garnet.
3.Real Density: 3.96-4.2g/m3
4.Bulk density: 1.96-2.15 g/m3
5.Melting point: 1300
6.Conductivity:
Cr2O3 46% AFS30-35 Top quality foundry chromite sand
Top quality foundry chromite sand manufacturer (south africa).The chromite sand is a product of south africa natural chromite ore after crushing and sieving, and its main chemical composition is Cr2O3.
*Melting point of 2150°C
*Good thermal conductivity
*Good resistance to thermal shock
*Excellent resistance to metal penetration or burn-on
*Resists slag attack
*High dimensional stability
Can supply 200,000-300,000 metric tons/month.
FOB: USD 9.5/mt
Loading Port: Pekan, Pahang Port
Payment Terms: T/T or Irrevocable Transferable L/C
Product has been certified by CCIC Singapore Pte Ltd, Accredited Laboratory SAC-Singlas, ISO 9001:2000, Accredited Inspection Body SAC
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