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Wear-resistant refractory bricks
Read:1919  2008-11-14 15:48:47

Sintering shape wear fire-resistant products
   
Circulating fluidized bed boiler with wear-resistant refractory bricks must have good wear resistance, thermal shock and expansion coefficient, and other characteristics of the small, I wear the company's family of products to meet the various models of the use of circulating fluidized bed boiler.
   
Wear-resistant refractory bricks:

Indicators / name / brand

Type

Type

Type Ⅲ

Al 2 O 3 %

≥ 85

≥ 75

≥ 65

SiO 2 %

≤ 15

≤ 25

≤ 35

Fe 2 O 3 %

<1.0

≤ 1.2

≤ 1.5

Volume density g/cm 3

≥ 2.9

≥ 2.6

≥ 2.5

Naiyaqiangduo Mpa (room temperature)

≥ 100

≥ 85

70

Porosity %

≤ 18

≤ 20

≤ 21

wear cc 

≤ 6

≤ 7

≤ 8

Refractoriness

≥ 1790

≥ 1790

≥ 1790

Heavy firing line change %

≤ 0.05

≤ 0.1

≤ 0.1

w/mk Thermal conductivity w / mk

≤ 1.8

≤ 1.8

≤ 1.5

Thermal Shock: times   110 0 ℃)(water)

20

20

20

 
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