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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	D₃	D₄	d
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
6	250	15	12	120	95	90	70	101	96
7	300	15	12	140	110	105	80	116	111
7	250	15	12	140	110	105	80	116	111
8	300	15	12	150	120	115	90	126	121
8	250	15	12	150	120	115	90	126	121
9	300	15	12	160	130	125	100	136	131
	250
	190
10	300	21	18	180	150	140	120	156	146
10	250	21	18	180	150	140	100	156	146

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	8	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	8	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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