Burned Sliding gate plate

Brand

Item Al-Zr-C

Slide gate Magnesia

Slide plate Al2O3 �C Slide Plate

LTH-68 LTH-72 LTH-78 LTH-85

Al2O3 (%) ≥ 72 8 68 72 78 85

ZrO2 (%) ≥ 6 MgO≥80

C (%) ≥ 7 7 7 7 5

A.P. (%) ≤ 8 10 8 8 10 10

B.D. (g/cm3) ≥ 3.00 2.95 2.70 2.80 2.90 3.00

C.C.S (Mpa) ≥ 120 50 80 90 100 120

HMOR (Mpa) ≥

(1400°Cx0.5h) 13 6 8 9 12 13

Light burned and unburned sliding plates

Brand

Item Alumina Carbon

Slide Gate Al2O3-SiC-C

Sliding Plate MgO-Al2O3 Spine Carbon Sliding Plate

Al2O3 (%) ≥ 70 65 65

ZrO2 (%) ≥ MgO≥ 5

C (%) ≥ 7 7 8

A.P. (%) ≤ 8 10 10

B.D. (g/cm3) ≥ 2.75

C.C.S (Mpa) ≥ 80 53.9 50

HMOR (Mpa) ≥

(1400°Cx0.5h) 8 6

Slide gates for tundish tube changer

With the development of con-casting technology, tube changers have been applied for the tundish in steel mills home and abroad. So we have developed the slide gate series products for tube changers, including porous upper nozzle, porous top and bottom plates, which have performed well in tube changers of Benxi Steel, second works of Anshan Steel, Taiyuan steel as well as foreign tube changers.

Item Slide Plate Porous Upper Nozzle

Plate Porous insert Nozzle Liner Porous Insert

Al2O3 (%)≥ 72 90 82 90

ZrO2 (%)≥ 6 4 3.5 4.0

C (%)≥ 7 Cr2O3≥2%

A.P. (%)≤ 3.05 3.05

B.D. (g/cm3) ≥ 120

C.C.S (Mpa) ≤10 20-22 ≤19 21-23

HMOR (Mpa) ≥

(1400°Cx0.5h) 12

Permeability

(0.1 Mpa) ≥30L/min ≥20L/min