Product Details

Seating Bricks for Tundish

Product Description

1. Well block (Seating Block) for Ladle

LQ –Series well block, seating block and porous block are shaped by pressing, prefabrication and vibration. With subtle formula design, unique technical process, they have good performance on Erosion-resistance, high temperature performance and also longer service life, which identified up to the leading domestic level and received recognition and praise

Chemical and Physical Properties	LQLWB-85	LQLWB-90	LQLWB-95
Al₂O₃ +MgO % min	85	90	95
Cr₂O₃ (C) % min	0	2.5	2.5
Apparent porosity g/cm³% max	15	13	13
Bulk density g/cm³ % min	3.0	3.05	2.9
Normal temperature Compressive strength (MPa) min	80	100	100
Breaking strength 1500°C×3hmin	23Mpa

2.Well block and purging plug

Chemical and Physical Properties		(Well block)	(purging plug)
AL2O3 %		>=85	>=85
MgO%		3-5	1-3
Cr₂O₃%		-----	>2.4
Bulk density gcm3		>=3.0	>=2.9
Apparent Porosity %		<=16	<=18
Cold crushing strength Mpa	110ºC*24h	>=60.0	>=80.0
	1500ºC*3h	>=100.0	>=80.0
Refractoriness under load : ºC		>=1680	>=1680
Modulus of rupture 1400ºC *1h Mpa Mpa		>=15.0	>=15.0
Linear change 1500ºC*3h %		±0.2	±0.2
air permeability, m3/hour at P=4 bar		30M3/H

1. Serivice life depends on steel-making condition, refractory slide gate and different operation mode. The above service life we supply is based on the condition of more than 100 Tons ladle.

2. For composited slide plate, we can mark different material in different part and detailed index according to the drawings.

3. Delivery time depends on the drawings. If new moulds are needed, an additive period may be necessary. In general it takes 25-50 days.

Production Flow

Jinan Linquan Industry and Trade Co., Ltd

Linquan Trade, Serve World