Silicochromium Furnace

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Silicochromium Furnace

Brief introduction and main application of silicochromium alloy
More than 90% silicochromium alloy is used as reducing agent in melting medium carbon ferrochromium, low-carbon ferrochromium and micro-carbon ferrochrome in electro-silicothermic process. In addition, silicochromium alloy can also be used as deoxidier and alloying agent in steelmaking. With the development of oxygen steelmaking, it has been increasingly wide applied to deoxidizing out chrome in steel slag and in additional part with silicon chromium alloy.
Silicochromium alloy properties

Silicochromium alloy is chromium and iron silicide, a kind of ferrochrome which contains enough silicon. Chromium silicide is more stable than carbide, so when silicon content in Fe - Cr - Si alloy is increasing, carbon content decline.


Silicochromium alloy – Grade & Chemical composition


Grade

Chemical composition %

Si

CR

C

P

S

 

 

FeCr30Si40-A

40

30

0.02

0.02

0.04

0.01

FeCr30Si40-B

40

30

0.04

0.02

0.04

0.01

FeCr30Si40-C

42

30

0.06

0.02

0.04

0.01

FeCr30Si40-D

42

30

0.10

0.02

0.04

0.01

FeCr32Si35

35

32

1.00

0.02

0.04

0.01

Smelting process
There are two kinds of methods in smelting silicochromium---one-step method and two-step method. One-step method is also called slag method, two-step method is also called no-slag method. One-step is smelting Silicochromium by putting chrome ore, silica and coke into one furnace. The first step of two-step method is putting chrome ore and coke into the first furnace to produce high carbon ferrochrome, and in second step to put the crushed high carbon ferrochrome, silica, coke together into another furnace. At present, in china industrial production, mostly use the two-step method to smelt silicochromium alloy.


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Q:Heat treatment equipment (industrial furnace), which products generally contain what kind of, which industries need to use heat treatment industrial furnace equipment.
Heat treatment furnace is mainly for the mechanical processing and casting industry workpiece annealing, quenching, carburizing, quenching and tempering, heat treatment equipment.
Q:What's the role of anchor bricks in industrial furnaces?
These layers need to be joined and anchored. Anchor brick is this role. The heat insulation layer at the horizontal section of the flue is mostly a narrow cavity.
Q:What are the companies in the world that are currently engaged in metallurgical furnaces?
Each manufacturer has its own industry and technological advantages.If you say that the performance rankings, turnover, and so on, it seems that no one has done this ranking.
Q:What is industrial furnace masonry?
Pre construction and recording shall be carried out on complex and important parts of industrial furnaces,masonry of all kinds of masonry shall be made with staggered joint masonry.
Q:What is an industrial furnace pit?
The creation and development of industrial kilns play an important role in the progress of mankind. Chinese appeared more perfect in the Shang Dynasty copper smelting furnace, furnace temperature is up to 1200 DEG C, up to 0.8 meters in diameter kiln stove.
Q:What are the combustion equipments used in industrial boilers?
The boiler is an energy conversion equipment. The energy input to the boiler has the chemical energy and the electric energy in the fuel. The boiler outputs steam with certain heat energy and high temperature water.
Q:What are the advantages of a vacuum furnace?
No pollution to the environment, no need for three wastes treatment.
Q:Should the industrial furnace shell cool down?
The function of furnace shell is beautiful, protective lining, fixed function accessories and so on.
Q:How to use industrial furnace equipment?
The protection device of the exposed transmission department shall be installed with the correct installation position. The structure is reasonable. The wire rope pulley of the furnace car shall be intact and undamaged. All the pulleys and sprockets on the furnace are in good condition, without defects and flexible in rolling.
Q:Selection of heat preservation material for industrial furnace
In the neutral and oxidizing atmosphere, the tensile strength, toughness and fiber structure can be maintained for long term use. The temperature is 950-1400 centigrade. Excellent chemical stability; excellent thermal stability; excellent tensile strength; low thermal conductivity; low thermal capacity; excellent sound absorption and noise reduction performance.

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