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  • refractory mortar for furnace
  • castable for roasting furnace
  • refractory material

Refractory for Roasting Furnace

Introduction

We devoted to researching and manufacturing refractory materials used for nonferrous metallurgy industry, which have cooperated with Zhengzhou Nonferrous Metallurgy Research Department of China Aluminum Corporation.
The relevant refractory developed by cooperation has been highly improved the period of refractory in non-ferrous metallurgy and extend the working life of furnace.
The products for roasting furnace including: shaped refractory materials, insulating refractory and monolithics refractory.

Features:
1: High refractoriness under load;
2. High modulus of rupture at high temperature;
3: Small shrinkage of refractory brick;
4: Low creep rate under high temperature condition;
5: Reduce energy loss.

zhengzhou Jansincere refractory Co., Ltd.

Jansincere Refractories always firmly believe that the intention to do the product, adhere to product innovation, and ultimately to win the trust of customers

Technical Index

Shaped Refractory Materials:

 

Item

Technical Index

Unit

Low Creep Resistance Refractory Brick

Special Low Creep Fireclay Brick

Andalusite Mullite Refractory brick

Insulating Cover of Viewing Hole

Al2O3                   ≥

%

48

48

45

55

55

Fe2O3                  ≤

%

1.7

1.6

1.8

1.5

-

Refractoriness Under Load         ≥

1550

1450

1430

1790

-

Bulk Density    ≥

g/cm³

2.4

2.3

2.25

2.4

2.35

Apparent Porosity      ≤

%

18

18

18

18

18

Cold Crushing Strength   ≥

Mpa

65

45

40

65

65

Modulus of Rupture (at 1200)≥

Mpa

5.0

-

-

5

8

Creep Rate (1280, 25h)

%

0.35

0.4

0.45

0.35

-

Linear Changer

on

Reheating

1350*3h

%

-

-

+0.1~-0.3

-

+0.2~-0.3

1400*3h

-

+0.1~-0.3

-

-

-

1450*3h

0~+0.25

-

-

+0.1~-0.2

-

Thermal Expansion Rate (1000)    ≤

%

0.65

0.65

0.6

0.7

-

Thermal Conductivity

(1000)

w/m·k

1.6

-

-

-

-

Thermal Shock Resistance

(1100, water) ≥

cycles

15

-

-

25

25

 

Item

Technical Index

Unit

Clay Brick

Alumina Brick

Alumina Insulating Brick

Mullite Brick

Al2O3                 ≥

%

42

45

48

48

Fe2O3                 ≤

%

2.5

2.0

1.5

1.0

Bulk Density         ≤

g/cm³

0.8

1.3

1.3

1.2

Cold Crushing Strength   ≥

Mpa

1.0

1.8

2

2

Thermal Conductivity

(350±25)   ≤

w/m·k

0.5

0.55

0.4

0.38

Max Working Temperature

1000

1000

1300

1350

 

Monolithic

Item

Technical Index

Unit

Mortar

(Adding Glue)

Mortar

(Adding Water)

Coating

Al2O3                 ≥

%

45

45

70

Fe2O3                 ≤

%

2.0

2.0

2.0

Bulk Density         ≤

g/cm³

-

-

-

Refractoriness       ≥

1720

1720

1790

 

Adhesive Strength

110×24

 

 

M·pa

3.0

2.0

0.7

1100×3h

5.0

5.0

1.2

1300×3h

8.0

6.0

2.0

Adhesive Time

Min

1~3

1~3

-

 

Grain

0.5mm

%

5.0 max.

5.0 max.

-

0.076mm

 

60 min.

5.0 max.

-

  

Item

Technical Index

Unit

Gunning Mix

Castables

Light Weight

Special Type

Normal

Light Weight

Alumina Bubble Castable

Al2O3            ≥

%

45

35

38

43

95

SiO2             ≥

%

40

50

39-55

40

-

Fe2O3            ≤

%

2.5

2.5

2.5

2.5

1.5

Bulk Density     ≤

g/cm³

1.3

0.55

2.4

1.0

1.4

Max Working Temperature      ≥

1350

1100

1400

1050

1500

Linear Changer on Reheating

900×3h

 

%

-

-

-0.1

+0.1

-

1200×3h

-0.3

-

±0.05

-

-

1500×3h

-

-

-

-

±0.5

 

Modulus of Rupture

M·pa

1.5

(110)

2.5

(900)

1.0

(110)

1.5

(110)

3

(900)

1.8

(900)

2.5

(1200)

1.0

(1000)

1.8

(900)

6

(1500)

Cold Crushing Strength

110 Dry

M·pa

8

1±10%

1150×6h)

40

5

7

1200×3h

10

35

3(900×3h)

24

Thermal Conductivity≤

W/m·k

0.3

350±25

0.150

800

0.7

800±25

0.2

500±25

0.6

350±25

— inquiry —

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