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 Furnace

Silicochromium alloy – Grade & Chemical composition

Grade	Chemical composition %
	Si	CR	C	P		S
	Si	CR	C	Ⅰ	Ⅱ	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.

Q: Selection of heat preservation material for industrial furnace: Micro nano heat insulation board.The thermal conductivity of micro nano heat insulation board is very low, only a fraction of the traditional thermal insulation material, and the insulation effect is very efficient.

Q: What is the difference between industrial furnaces and boilers?: A boiler is a mechanical device for heating water into hot water or steam by the use of heat from fuel or other sources of energy. The original meaning of a pot is a water container heated by fire. The furnace is the place where the fuel is burned. The boiler includes two parts, the cooker and the furnace.

Q: What are the companies in the world that are currently engaged in metallurgical furnaces?: Basically, no industrial furnace manufacturer can do all types of stoves.Often associated with the industry is very large,so your ranking is basically meaningless.

Q: What are the combustion equipments used in industrial boilers?: Main auxiliary equipment for general boilers:1. domestic appliances 2. civilian gas boiler 3. industrial gas furnace.

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'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: Why does the burner of industrial furnace burn occasionally?: The general process for burner ignition, blowing furnace, electric spark ignition, solenoid valve, open the gas in case of delayed spark ignition, detection device detects the flame, the controller accepts signal so that the solenoid valve open, gas continuous normal combustion. However, if the ignition fails or the burner fires, the detector cannot detect the flame, which causes the solenoid valve to close and the burner flameout.

Q: What are the advantages of a vacuum furnace?: High degree of integration of mechanical and electrical. On the basis of the improvement of temperature measurement and control accuracy, the workpiece movement, air pressure regulation, power adjustment can be programmed in advance, and quenching and tempering are carried out according to the steps.

Q: What is the difference between industrial furnace masonry and ordinary masonry?: Industrial furnace masonry requirements are relatively high, industrial furnaces of different uses, whether material or masonry process, have strict requirements.

Q: Brief introduction to repair of industrial furnace: The industrial furnace is the main production equipment in the machinery industry. The repair of industrial furnace directly affects the quality, high yield, long life, low consumption and safe production of the furnace.

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