Covering Agent

Covering Agent

Covering Agent


We have developed high alkalinity low carbon covering agent for tundish.The product can reduce the content of oxide impurity and high oxygen in steel by using high alkalinity. In order to meet the supporting service of metallurgical industry and produce low carbon steel to avoid the increase of carbo

Email: [email protected]

WhatsApp/Phone Number: +8613592411271

Product detail

Covering Agent

Color:White

Application:Blast furnace and other industrial kilns.

Size :Customized

Package:Export ton bag

Product Introduction

We have developed high alkalinity low carbon covering agent for tundish.The product can reduce the content of oxide impurity and high oxygen in steel by using high alkalinity. In order to meet the supporting service of metallurgical industry and produce low carbon steel to avoid the increase of carbon,we also developed carbon-free particle covering agent. This product is made with entirely carbon-free raw material, which is with high refractoriness and can solve the problem of crusting.

Features

1.Good spread ability.

2.Good thermal insulation.

3.No crusting after adsorption of impurities.

4.Non-stick to ladle surface.

5.Long insulating time.

6.Little temperature decreases of molten steel.

7.Erosion resistance to ladle lining.

Application

It is mainly used in steel making industry.

Product Parameters

High Alkalinity Low Carbon Covering Agent for Tundish

     Item High Alkalinity Low Carbon Covering Agent for Tundish
Item HCZ-1 HCZ-2
CaO% 48.0±4.0 8.0
Al2O3% 28.0+3.0 8.0
SiO2% ≤8 35.0
MgO% 5.0+2.0 10.0
C% ≤2
CaF2% 3.0-7.0
Melting Point ℃ 1350±50
Melting Speed S ≥70
H2O % ≤1.5

Carbon-free Particle Covering Agent

Item Covering Agent
  High Alkalinity Low Carbon Covering Agent for Tundish Carbon-free Particle Covering Agent Low Carbon Covering Agent Acid Covering Agent Carbon Low Silicon Covering Agent Insulation Covering Agent
HCZ-1 HCZ-2
Al2O3 % 28.0+3.0 8.0 16±4 15~30 ≤2 30~40 ≤2
SiO2 % ≤8 35.0 32±4 40~55 35~45 ≤8.0 85-89
CaO % 48.0±4.0 8.0 37±4 4~20 33~43 40~50 ≤2
Fe2O3% ≤5 ≤2.5 ≤4.0 ≤1
MgO % 5.0+2.0 10.0 ≥3 ≤8 8~10 ≤5.0 ≤2
FC % ≤3.0 ≤2 ≤2.0
R % 1.15±0.2 0.9~1.0  
Particle size ≥70(0.15-2.0mm) ≥70 (0.15-2.0mm) ≥70 (0.15-2.0mm) ≤15mm
H2O % ≤1.5 ≤1.0 ≤0.5 ≤0.5 ≤0.5 ≤1.5

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