Riser Insulation Heating Agent

Heat Feeding, Reduce Riser Iron WeightStable Quality, Thermal Insulation Effect

产品信息

Product Introduction

Riser heating covering agent is applied to the risers of steel and iron castings, it prevents the metal melt from experiencing thermal radiation and convection through the riser's exposed surface. This, in turn, reduces heat loss and increases the safety factor of the riser. The ultimate goal is to enhance the feeding effect of the riser by prolonging its solidification duration.


Product Features

1. This product has a high exothermic value and outstanding insulation performance, capable of raising localized melt temperatures to above 1650°C.

2. It can rapidly form a porous structural coating layer, exhibiting a low thermal conductivity and excellent thermal insulation effectiveness.

3. With good spreadability and expansion, it can uniformly cover the surface of exposed risers.

4. Simple and convenient to use, requiring a small amount of addition.


Chemical Analysis

Model No.

C

SiO2

A1

Metal

A12O3

CaO

Na2O

MgO

Color

CF0

<3%

<8%

(11-15)%

(38-45)%

3%

5%

4%

Grey

CF2

<30%

<(38-45)%


<10%

8%

8%

3%

Black

CF3

<11%

<(35-45)%


(10-15)%

(10-15)%

5%

5%

Grey

Particle size

Viscosity

Bulk density

(50-150)目通过率>90%

(1300℃)0.05~0.15Pa.s

1.1±0.05g/ml

 

Usage method

1. Place the carburizer in the middle and lower part of the electric furnace. That is, after placing a small amount of iron material in the furnace to melt it (or a small amount of hot metal remaining on the         furnace), add the required metal charge, and press all the carburizer into the hot metal, so that the carburizer is fully in contact with the hot metal.

2. The slag removal operation of hot metal should be avoided during the absorption of the carburizer, so as to avoid the carburizer being taken out with the slag.

3. It is recommended that the return charge or pig iron be added after the carburizer is cleared.

4. Before hot metal is released, a small dose of carburizer can be added to the surface of hot metal for carbon fine-tuning, and the carburizer can be dissolved and absorbed by eddy current stirring or manual stirring.

5. Siliconization and sulfurization should be carried out after the carburizing agent is absorbed.


Packing Specification

25 kg/bag, ton bag