RAYA PLASTS

RAYA PLASTS

“RAYA PLASTS” mixes are ready for use plastic fireclay or high-alumina ceramically setting materials. They are based on refractory additives and clay as carries of the bond. Due to special organic-chemical additives they have very good plasticity. Since a substantial growth in strength dose not occur until increased sintering, these mixes should not be used where there will be abrasion stress at low temperatures.

The “RAYA PLAST” mixes are delivered friable or as slices. The Slices have the advantages that for application no molds are required; otherwise the ramming is done behind stable molds.

Products

Service Temp.

Main Raw Materials

Installation method

Material Required

Chemical analysis
[%]

Permanet

Liner Change

Cold Crushing Strength [N/mm²]

Thermal Conductivity
[w/km]

[°C]

[t/m³]

Al₂O₃

SiO₂

Fe₂O₃

( )°C

400 °C

600°C

1000°C

1200°C

RAYA PLAST 140

1400

Low Iron Fireclay

Ramming

2.15-2.20

37-

53-

1.8-

2.2

S(0.0-0.1)

(300)

E(0.2-0.3)

(1050)

16-18(300)

30-40(1050)

1.00

1.88

1.20

1.30

RAYA PLAST 150

1500

Bauxite Fireclay

Ramming

2.35-2.40

63-

28-

1.8-

2.2

S(0.2-0.3)

(300)

E(1.1-1.6)

(1500)

20-30(300)

40-50(1500)

1.50

1.70

2.05

RAYA PLAST 160

1600

Bauxite

Ramming

2.60-2.65

75-

16.5

1.8-

2.2

S(0.5-0.8)

(300)

E(1.8-2.8)

(1500)

20-25(300)

40-60(1500)

1.6

1.5

1.7

2.0

RAYA PLAST 170

1700

Tabular alumina

Ramming

2.60-2.65

87-

9.5-

10.5

0.3-

0.5

E(0.5-0.8)

(300)

S(1.3-1.9)

(1500)

20-30(300)

40-60(1500)

1.4

1.3

1.5

2.0

The properties shown in this table do not represent guaranteed values. For each product a current product information sheet is available on request.