Micro expansion refractory castables

Detailed introduction

Micro-expansion refractory castable is a new type of refractory castable which is developed by using adhesive bonding and low cement castable technology. Its characteristics are suitable strength, micro-expansion and good thermal shock resistance. The series says that the injection material can be applied to all parts of the industrial furnace. The micro-expansion refractory castable has been used in the heating furnaces of more than ten steel plants, such as Baoxin, Baoding Yaxin, Yinfeng, Kaiping No. 6 Rolling Mill, etc. It is an ideal material for various heating furnaces. Especially the regenerative heating furnace.
The micro-expansion refractory castable is developed by our company according to the low cement castable. The compound expansive agent of medium and high temperature is introduced into the formula, which makes the product produce slight volume expansion in the course of using. It can effectively prevent the lining from cracking, save heat and energy, and reduce thermal spalling. It is suitable for use in power plant boilers, sugar making boilers, petrochemical and iron and steel industry heating furnaces.


 Main Properties


Index

 Item

TN-WJl

TN-WJ2

TN-WJ3

TN-WJ4

TN-WMJ-l

TN-WMJ-2

 type

 high corundum based

 high alumina mullite

AL2O3, % ≥

55

58

62

66

65

70

CaO,%

2.2

2.0

2.0

2.0

2.4

2.2

bulk density,g/cm³ ≥

110℃×24h

2.33

2.36

2.43

2.46

2.48

2.52

l400℃×3h

2.28

2.32

2.40

2.43

2.45

2.50

C.C.S,MPa≥

110℃×24h

15

17

20

25

25

25

l400℃×3h

50

50

58

62

65

70

linear change aftcr heating%

1400℃×3h

0~+0.6

0~0.8

O~+O.7

Max.service temperature,℃

1500

1500

1500

water quantity of using,%

6.5~7.5

6.5~7.5

6.5~7.5

application

Furnace top and low temperature furnace wall

Furnace wall and partition wall

Water cooled tube bandage and burner brick

 微膨胀耐火浇注料

 





 E-mail:glgs1994@163.com

冀ICP备05015860号-1  

1540776817699677.png


Copyright © http://www.sd-naracom.com/en/ 万搏manbext官网登录 Specializing in Custom made refractories,Hebei refractories manufacturer,Construction of refractory materials in Hebei ,Welcome to inquire!

1540776817699677.png

0315-3384573

扫一扫

1536884200741652.jpg

关注公众号