Chinese Ceramic Beads for RCS Application

Short Description:

Ceramic beads, also named as cerabeads, ceramic sand, ceramcast, is a good artificial spherical grain shape which is made from calcined bauxite. Its main content is aluminum oxide and Silicon oxide. Applicate in RCS process, it has the properties of high temperature resistance, low expansion, easy collapse, and low gas output, which can effectively prevent expansion defects in castings. For cores with particularly complex shapes, can deal with the problem that sand shooting is not easy to compact.

Meanwhile, due to it’s spherical property, it reduce the resin addition with good castings and lower cost.

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Product Detail

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Features

• Uniform component composition
• Stable grain size distribution and air permeability
• High refractoriness (1800°C)
• High resistance to wear, crush and thermal shock
• Little thermal expansion
• Excellent fluidity and filling efficiency owing to being spherical
• Highest reclamation rate in the sand loop system

Chinese Ceramic Beads for RCS Application2

Application Sand Foundry Processes

RCS (Resin coated sand)
Cold box sand process
3D printing sand process (Include Furan resin and PDB Phenolic resin)
No-bake resin sand process (Include Furan resin and Alkali phenolic resin)
Investment process/ Lost wax foundry process/ Precision casting
Lost weight process/ Lost foam process
Water glass process

Chinese Ceramic Beads for RCS Application1

Ceramic Sand Property

Main Chemical Component	Al₂O₃ 58-62%, Fe₂O₃＜2%,	Al₂O₃ ≥53%, Fe₂O₃＜3.5%,	Al₂O₃ ≥45%, Fe₂O₃＜4%,
Grain Shape	Spherical	Spherical	Spherical
Angular Coefficient	≤1.1	≤1.1	≤1.1
Partical Size	45μm -2000μm	45μm -2000μm	45μm -2000μm
Refractoriness	≥1800℃	≥1790℃	≥1700℃
Bulk Density	1.5-1.6 g/cm3	1.5-1.6 g/cm3	1.5-1.6 g/cm3
PH	7.2	7.2	7.2
Application	Steel, Stainless steel, Iron	Carbon steel, Iron	Iron, Aluminum, Copper

Grain Size Distribution

Mesh	20	30	40	50	70	100	140	200	270	Pan	AFS Range
μm	850	600	425	300	212	150	106	75	53	Pan	AFS Range
#400		≤5	15-35	35-65	10-25	≤8	≤2				40±5
#500		≤5	0-15	25-40	25-45	10-20	≤10	≤5			50±5
#550			≤10	20-40	25-45	15-35	≤10	≤5			55±5
#650			≤10	10-30	30-50	15-35	0-20	≤5	≤2		65±5
#750				≤10	5-30	25-50	20-40	≤10	≤5	≤2	75±5
#850				≤5	10-30	25-50	10-25	≤20	≤5	≤2	85±5
#950				≤2	10-25	10-25	35-60	10-25	≤10	≤2	95±5