EAF TAP Hole Brick

Category:

EAF Refractory Products

Magnesia carbon brick with high melting point of alkaline oxide, magnesium oxide (melting point 2800 ℃) and hard to slag invasion of high melting point carbon materials as raw materials, all kinds of oxide additives.Carbon composite refractory materials with carbon binding agent.

Keyword:

EAF TAP Hole Brick

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Technical instructions

MAIN COOPERATION PARTNER:

主要合作伙伴

中冶长天国际工程有限公司

ZHONGYE CHANGTIAN INTERNATIONAL ENGINEERING CO., LTD

中冶北方工程技术有限公司

NORTHERN ENGINEERING & TECHNOLOGY CORPORATION . MCC

首钢设计院

BEIJING SHOUGANG INTERNATIONAL ENGINEERING TECHNOLOGY CO ., LTD

新兴际华集团(原新兴铸管)

XINXING CATHAY INTERNATIONAL GROUP

山东瑞拓设计院

SHANGDONG RUITUO PELLETING ENGINEERING & TECHNOLOGY CO ., LTD

山东冶金设计院

SHANDONG PROVICE METALLURGICAL ENGINEERING CO ., LTD

中钢集团

SINOSTEEL GROUP

中国五矿集团

CHINA MINMETALS CORPORATION

MAGNESIA CARBON BRICKS

With high purity magnesia powder, carbon materials (including graphite) and tar pitch or resin as raw material, after heat ingredients, mixing, molding, then through above 300 ℃ or 1000 ℃ calcination.

In order to inhibit the oxidation of carbon in bricks, it is often added with aluminum, silicon, magnesium and other metals or boron nitride, and the amount is not more than 5%.

APPLICATION FOR EAF, LADLE, CONVERTER

It is mainly used in furnace lining of steelmaking oxidation converter, outlet of steel outlet, hot spot of high power electric furnace wall, lining of furnace outer furnace and steel drum slag line.

ADVANTAGE

It has excellent slag resistance, slag penetration, thermal shock stability and thermal conductivity.

Technical Parameters

Item	MGO C Brick			AL₂O₃ – MGO – C Brick
Item	MT-10A	MT-14A	MT-16A	AMC -6ª	AMC -8A
MgO(%)≥	80	76	72	84	72
C(%)≥	10	14	16	6	8
AP(%)≤	4.0	3.5	3	10	10
BD (g/cm³)	2.9	2.85	2.8	2.9	2.85
CCS(Mpa)≥	40	35	35	40	40
ST	YB/T4074-1991			YB/T4074-1991

Technical Parameters

Casting type:

ITEM		HD-ZW1	HD-ZW2	HD-DY1	HD-DY21
MgO+Al2O3(%)		70	80	80	85
BD（g/cm3)		2.7	2.8	2.8	2.9
CCS	110 ℃×24h	7	8	8	10
(Mpa)≥	1500 ℃×3h	10	12	12	12
ST	110 ℃×24h	40	40	40	40
(Mpa)≥	1500 ℃×3h	50	60	50	60

Machine pressure type:

ITEM		IMPACT BLOCK	TUNDISH POT	SAFETY PLATE /SLAB BLOCK
WORKING TEMP （℃）≥		1700
MgO （％）≥		80	82	83
C （％）≥		8	10	12
BD （g/cm³）110 ℃×24h ≥		2.8	2.82	2.85-2.88
CCS （MPA）	110 ℃×24h	40	40	40
CCS （MPA）	1500 ℃×3h	60	60	60
PLC 1500℃×3h		±0.5	±0.3	±0.5