Ceramsite sand for resin coated sand castings

Ceramsite sand is an artificial spherical casting sand developed by SHXK, same with Japanese Cerabeads. It has high refractoriness (>1800°C), small angular coefficient (<1.1, approximately spherical), low acid consumption (neutral material), low binder content (at least 30% reduction in binder content), and particles high strength, non-breaking and other excellent characteristics, suitable for all types of sand foundry, especially for the coated sand. There are more successful application cases.

Full ceramic sand is used to make coated sand, and reused repeatedly after reclamation, which can effectively improve the quality and production efficiency of castings, reduce the castings scrape rate and the production cost of enterprises, the long-term use cost is lower than that of silica sand. Therefore, in recent years, almost all large-scale coated sand plants have used ceramic sand as raw sand to produce coated sand.

Advantage

● Resin coated ceramic sand with super high temperature resistance, strong resistance to deformation intensity, low inflation, low gas evolution, to meet the special requirements of customers.

● Good fluidity filling ability, non-stick mold, applicable for the artificial core-making process.

● Super high temperature resistance could avoid to casting defects such as sand burning, surface fold, veining, joint flash and crack.

● Small than 100kg castings could be achieved without sand coating.

Parts of Particle size Distribution

The particle size distribution can be customized according your requirement.

Mesh

20 30 40 50 70 100 140 200 270 Pan AFS

μm

850 600 425 300 212 150 106 75 53 Pan  
code 40/70   ≤5 20-30 40-50 15-25 ≤8 ≤1       43±3
70/40   ≤5 15-25 40-50 20-30 ≤10 ≤2       46±3
50/100     ≤5 25-35 35-50 15-25 ≤6 ≤1     50±3
100/50     ≤5 15-25 35-50 25-35 ≤10 ≤1     55±3
70/140       ≤5 25-35 35-50 8-15 ≤5 ≤1   65±4
140/70       ≤5 15-35 35-50 20-25 ≤8 ≤2   70±5
100/200         ≤10 20-35 35-50 15-20 ≤10 ≤2 110±5

Application

Engine cylinder block, cylinder head, piston ring, oil seal, floor spring.

Small and medium-sized stainless steel, steel casting shell, off-core.

Used in large turbine shell mold, 6-8 speed gearbox, main part of auto brake disc,.

Muti-cylinder block(empty flip type core), the exhaust pipe and bronchus.

Camshaft, oil seal, container corner shell.

All kinds of high standard, high requirement, difficult process of coated sand castings.

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Post time: Dec-30-2021