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Refractory products for bottom pouring of steel

Refractory products for bottom pouring of steel

For bottom pouring of steel

Технические характеристики / Technical characteristics

 

Norm for mark

 

SHS-28

SHS-32

MLS-67

GOST 11586-2005 with a change 1 

Mass fraction, %:

 

Al2O3, no less

28

32

67

Fe2O3, no more

-

-

1,5

Refractory property, °C, no low

1670**

1690

1750

Open porosity, %, in the limit of, no more


15-26*


15-24


-
23

Residual changes in the sizes during heating,%, no more, at the temperature 1350 °C

 

0,5**

0,4

-

Thermal resistance of the central, span and end siphon tubes, thermal cycling (heating up to 800 ° C, air cooling), thermal cycling, no less

1

1

3

* For the products of SHS-28 mark of the plastic production method, open porosity is allowed not more than 28%.

** For the products of SHS-28 by the agreement of the parties, the norms are allowed:

- refractory property – no low 1650 °С

- residual changes in the sizes during heating – no more 1,0%

 
Funnels

Product number

Sizes, mm

  

H

H1

h

D

D1

D2

D

D4

1

200

25

15

120 

95

90 

225 

270 

70 

2

300

25

15

140

110

105

245

295

80

3

300

25

15

150

120

115

270

320

90

4

300

25

15

160

130

125

270

320

100

5

250

25

21

180

150

140

280

340

100

 

 
Bottom-guide tubes

Product number Sizes, mm
   H h h1 D D1 D2 d  d1  d2 
6 300 15 12 120  95  90  70  101  96 
250
7 300 15 12 140 110 105 80 116 111
250
8 300 15 12 150 120 115 90 126 121
250
9 300 15 12 160 130 125 100 136 131
250
190
10 300 21 18 180 150 140 120 156 146
250 100

 
Bottom-guide tubes with two manholes

Product number Sizes, mm
   H h h1 D d d1 d2  d3  d4 
11 150 18 12 180  80  116  111  146  136 
12 150 18 12 180 90 126 121 151 141
13 150 18 12 190 100 136 131 156 146
14 150 18 18 190 100 156 146 156 146

 
Two-way star gears with a groove

Product number Sizes, mm
   A H H1 h h1 D1 D2  d  d1  d2 d3
15 210 95 55 12  101  96  70  65  60

35, 40

16 210 95 55 12 8 116 111 80 65 60 35, 40
17 210 95 55 12 8 126 121 90 65 60 35, 40
18 260 115 65 12 10 126 121 90 81 76 50

 
Rectangular four-way star gears with a groove

Product number Sizes, mm
   A H H1 h h1 D1 D2  d  d1  d2 d3
30 210 95 55 12  101  96  70  65  60 35, 40
31 210 95 55 12 8 116 111 80 65 60 35, 40
32 210 95 55 12 8 126 121 90 65 60 35, 40
33 260 115 65 12 10 126 121 90 81 76 50
35 260 115 65 12 10 136 131 100 81 76 50
36 260 135 75 12  

 

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